From 26a21b980b1897b11fd7f9ba4bf6060c9e15df10 Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 31 May 2006 18:05:34 +0000 Subject: [CIFS] Cleanup extra whitespace in dmesg logging. Update cifs change log --- fs/cifs/CHANGES | 5 ++++- fs/cifs/asn1.c | 10 +++++----- fs/cifs/cifssmb.c | 2 +- fs/cifs/dir.c | 2 +- fs/cifs/file.c | 18 +++++++++--------- fs/cifs/inode.c | 24 ++++++++++++------------ fs/cifs/link.c | 7 +++---- fs/cifs/readdir.c | 2 +- fs/cifs/transport.c | 3 +-- 9 files changed, 37 insertions(+), 36 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 7271bb0257f..953d2f7f88b 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -3,7 +3,10 @@ Version 1.43 POSIX locking to servers which support CIFS POSIX Extensions (disabled by default controlled by proc/fs/cifs/Experimental). Handle conversion of long share names (especially Asian languages) -to Unicode during mount. +to Unicode during mount. Fix memory leak in sess struct on reconnect. +Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on +cifs open which helps rare case when setpathinfo fails or server does +not support it. Version 1.42 ------------ diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c index 086ae8f4a20..031cdf29325 100644 --- a/fs/cifs/asn1.c +++ b/fs/cifs/asn1.c @@ -467,7 +467,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, asn1_open(&ctx, security_blob, length); if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { - cFYI(1, ("Error decoding negTokenInit header ")); + cFYI(1, ("Error decoding negTokenInit header")); return 0; } else if ((cls != ASN1_APL) || (con != ASN1_CON) || (tag != ASN1_EOC)) { @@ -495,7 +495,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { - cFYI(1, ("Error decoding negTokenInit ")); + cFYI(1, ("Error decoding negTokenInit")); return 0; } else if ((cls != ASN1_CTX) || (con != ASN1_CON) || (tag != ASN1_EOC)) { @@ -505,7 +505,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { - cFYI(1, ("Error decoding negTokenInit ")); + cFYI(1, ("Error decoding negTokenInit")); return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_CON) || (tag != ASN1_SEQ)) { @@ -515,7 +515,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { - cFYI(1, ("Error decoding 2nd part of negTokenInit ")); + cFYI(1, ("Error decoding 2nd part of negTokenInit")); return 0; } else if ((cls != ASN1_CTX) || (con != ASN1_CON) || (tag != ASN1_EOC)) { @@ -527,7 +527,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, if (asn1_header_decode (&ctx, &sequence_end, &cls, &con, &tag) == 0) { - cFYI(1, ("Error decoding 2nd part of negTokenInit ")); + cFYI(1, ("Error decoding 2nd part of negTokenInit")); return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_CON) || (tag != ASN1_SEQ)) { diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 925881e00ff..f00369277c0 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -2239,7 +2239,7 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, } symlinkinfo[buflen] = 0; /* just in case so the caller does not go off the end of the buffer */ - cFYI(1,("readlink result - %s ",symlinkinfo)); + cFYI(1,("readlink result - %s",symlinkinfo)); } } qreparse_out: diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 82315edc77d..57bdf7f734b 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -191,7 +191,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } if (rc) { - cFYI(1, ("cifs_create returned 0x%x ", rc)); + cFYI(1, ("cifs_create returned 0x%x", rc)); } else { /* If Open reported that we actually created a file then we now have to set the mode if possible */ diff --git a/fs/cifs/file.c b/fs/cifs/file.c index e2b4ce1dad6..379369ecda9 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -201,7 +201,7 @@ int cifs_open(struct inode *inode, struct file *file) } else { if (file->f_flags & O_EXCL) cERROR(1, ("could not find file instance for " - "new file %p ", file)); + "new file %p", file)); } } @@ -272,7 +272,7 @@ int cifs_open(struct inode *inode, struct file *file) & CIFS_MOUNT_MAP_SPECIAL_CHR); } if (rc) { - cFYI(1, ("cifs_open returned 0x%x ", rc)); + cFYI(1, ("cifs_open returned 0x%x", rc)); goto out; } file->private_data = @@ -409,8 +409,8 @@ static int cifs_reopen_file(struct inode *inode, struct file *file, CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc) { up(&pCifsFile->fh_sem); - cFYI(1, ("cifs_open returned 0x%x ", rc)); - cFYI(1, ("oplock: %d ", oplock)); + cFYI(1, ("cifs_open returned 0x%x", rc)); + cFYI(1, ("oplock: %d", oplock)); } else { pCifsFile->netfid = netfid; pCifsFile->invalidHandle = FALSE; @@ -531,7 +531,7 @@ int cifs_closedir(struct inode *inode, struct file *file) (struct cifsFileInfo *)file->private_data; char *ptmp; - cFYI(1, ("Closedir inode = 0x%p with ", inode)); + cFYI(1, ("Closedir inode = 0x%p", inode)); xid = GetXid(); @@ -605,7 +605,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) } if (pfLock->fl_flags & FL_ACCESS) cFYI(1, ("Process suspended by mandatory locking - " - "not implemented yet ")); + "not implemented yet")); if (pfLock->fl_flags & FL_LEASE) cFYI(1, ("Lease on file - not implemented yet")); if (pfLock->fl_flags & @@ -1377,7 +1377,7 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) xid = GetXid(); - cFYI(1, ("Sync file - name: %s datasync: 0x%x ", + cFYI(1, ("Sync file - name: %s datasync: 0x%x", dentry->d_name.name, datasync)); rc = filemap_fdatawrite(inode->i_mapping); @@ -1406,7 +1406,7 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) /* fill in rpages then result = cifs_pagein_inode(inode, index, rpages); */ /* BB finish */ -/* cFYI(1, ("rpages is %d for sync page of Index %ld ", rpages, index)); +/* cFYI(1, ("rpages is %d for sync page of Index %ld", rpages, index)); #if 0 if (rc < 0) @@ -1838,7 +1838,7 @@ static int cifs_readpage_worker(struct file *file, struct page *page, if (rc < 0) goto io_error; else - cFYI(1, ("Bytes read %d ",rc)); + cFYI(1, ("Bytes read %d",rc)); file->f_dentry->d_inode->i_atime = current_fs_time(file->f_dentry->d_inode->i_sb); diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 4093764ef46..77a9e2f912f 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -41,7 +41,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, char *tmp_path; pTcon = cifs_sb->tcon; - cFYI(1, ("Getting info on %s ", search_path)); + cFYI(1, ("Getting info on %s", search_path)); /* could have done a find first instead but this returns more info */ rc = CIFSSMBUnixQPathInfo(xid, pTcon, search_path, &findData, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & @@ -97,9 +97,9 @@ int cifs_get_inode_info_unix(struct inode **pinode, inode = *pinode; cifsInfo = CIFS_I(inode); - cFYI(1, ("Old time %ld ", cifsInfo->time)); + cFYI(1, ("Old time %ld", cifsInfo->time)); cifsInfo->time = jiffies; - cFYI(1, ("New time %ld ", cifsInfo->time)); + cFYI(1, ("New time %ld", cifsInfo->time)); /* this is ok to set on every inode revalidate */ atomic_set(&cifsInfo->inUse,1); @@ -421,23 +421,23 @@ int cifs_get_inode_info(struct inode **pinode, inode = *pinode; cifsInfo = CIFS_I(inode); cifsInfo->cifsAttrs = attr; - cFYI(1, ("Old time %ld ", cifsInfo->time)); + cFYI(1, ("Old time %ld", cifsInfo->time)); cifsInfo->time = jiffies; - cFYI(1, ("New time %ld ", cifsInfo->time)); + cFYI(1, ("New time %ld", cifsInfo->time)); /* blksize needs to be multiple of two. So safer to default to blksize and blkbits set in superblock so 2**blkbits and blksize will match rather than setting to: (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/ - /* Linux can not store file creation time unfortunately so we ignore it */ + /* Linux can not store file creation time so ignore it */ inode->i_atime = cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastAccessTime)); inode->i_mtime = cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime)); inode->i_ctime = cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); - cFYI(0, ("Attributes came in as 0x%x ", attr)); + cFYI(0, ("Attributes came in as 0x%x", attr)); /* set default mode. will override for dirs below */ if (atomic_read(&cifsInfo->inUse) == 0) @@ -731,7 +731,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) rc = CIFSSMBMkDir(xid, pTcon, full_path, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc) { - cFYI(1, ("cifs_mkdir returned 0x%x ", rc)); + cFYI(1, ("cifs_mkdir returned 0x%x", rc)); d_drop(direntry); } else { inode->i_nlink++; @@ -798,7 +798,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry) char *full_path = NULL; struct cifsInodeInfo *cifsInode; - cFYI(1, ("cifs_rmdir, inode = 0x%p with ", inode)); + cFYI(1, ("cifs_rmdir, inode = 0x%p", inode)); xid = GetXid(); @@ -1121,7 +1121,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) xid = GetXid(); - cFYI(1, ("In cifs_setattr, name = %s attrs->iavalid 0x%x ", + cFYI(1, ("In cifs_setattr, name = %s attrs->iavalid 0x%x", direntry->d_name.name, attrs->ia_valid)); cifs_sb = CIFS_SB(direntry->d_inode->i_sb); @@ -1289,7 +1289,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) it may be useful to Windows - but we do not want to set ctime unless some other timestamp is changing */ - cFYI(1, ("CIFS - CTIME changed ")); + cFYI(1, ("CIFS - CTIME changed")); time_buf.ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime)); } else @@ -1356,7 +1356,7 @@ cifs_setattr_exit: void cifs_delete_inode(struct inode *inode) { - cFYI(1, ("In cifs_delete_inode, inode = 0x%p ", inode)); + cFYI(1, ("In cifs_delete_inode, inode = 0x%p", inode)); /* may have to add back in if and when safe distributed caching of directories added e.g. via FindNotify */ } diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 2ec99f83314..a57f5d6e621 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -167,7 +167,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) return -ENOMEM; } - cFYI(1, ("Full path: %s ", full_path)); + cFYI(1, ("Full path: %s", full_path)); cFYI(1, ("symname is %s", symname)); /* BB what if DFS and this volume is on different share? BB */ @@ -186,8 +186,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) inode->i_sb,xid); if (rc != 0) { - cFYI(1, - ("Create symlink worked but get_inode_info failed with rc = %d ", + cFYI(1, ("Create symlink ok, getinodeinfo fail rc = %d", rc)); } else { if (pTcon->nocase) @@ -289,7 +288,7 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) else { cFYI(1,("num referral: %d",num_referrals)); if(referrals) { - cFYI(1,("referral string: %s ",referrals)); + cFYI(1,("referral string: %s",referrals)); strncpy(tmpbuffer, referrals, len-1); } } diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index b689c503512..6b36c43d38f 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -909,7 +909,7 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) case 1: if (filldir(direntry, "..", 2, file->f_pos, file->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) { - cERROR(1, ("Filldir for parent dir failed ")); + cERROR(1, ("Filldir for parent dir failed")); rc = -ENOMEM; break; } diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 3da80409466..17ba329e2b3 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -654,8 +654,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, if (in_buf->smb_buf_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) { up(&ses->server->tcpSem); - cERROR(1, - ("Illegal length, greater than maximum frame, %d ", + cERROR(1, ("Illegal length, greater than maximum frame, %d", in_buf->smb_buf_length)); DeleteMidQEntry(midQ); /* If not lock req, update # of requests on wire to server */ -- cgit v1.2.3 From 3979877e5606ecc58c5a31bd0078c6d80ba9cbe7 Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 31 May 2006 22:40:51 +0000 Subject: [CIFS] Support for setting up SMB sessions to legacy lanman servers --- fs/Kconfig | 40 +++- fs/cifs/CHANGES | 5 + fs/cifs/Makefile | 2 +- fs/cifs/cifs_debug.c | 84 ++++++-- fs/cifs/cifs_debug.h | 4 + fs/cifs/cifs_unicode.c | 1 + fs/cifs/cifsencrypt.c | 2 + fs/cifs/cifsfs.c | 4 +- fs/cifs/cifsglob.h | 51 +++-- fs/cifs/cifspdu.h | 37 +++- fs/cifs/cifsproto.h | 2 +- fs/cifs/cifssmb.c | 95 ++++++++- fs/cifs/connect.c | 39 ++-- fs/cifs/dir.c | 2 +- fs/cifs/fcntl.c | 4 +- fs/cifs/inode.c | 3 +- fs/cifs/misc.c | 10 +- fs/cifs/readdir.c | 16 +- fs/cifs/sess.c | 511 +++++++++++++++++++++++++++++++++++++++++++++++++ fs/cifs/smbencrypt.c | 1 + 20 files changed, 837 insertions(+), 76 deletions(-) create mode 100644 fs/cifs/sess.c diff --git a/fs/Kconfig b/fs/Kconfig index f9b5842c8d2..c4eaacb8607 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -1663,7 +1663,7 @@ config CIFS_STATS mounted by the cifs client to be displayed in /proc/fs/cifs/Stats config CIFS_STATS2 - bool "CIFS extended statistics" + bool "Extended statistics" depends on CIFS_STATS help Enabling this option will allow more detailed statistics on SMB @@ -1676,6 +1676,32 @@ config CIFS_STATS2 Unless you are a developer or are doing network performance analysis or tuning, say N. +config CIFS_WEAK_PW_HASH + bool "Support legacy servers which use weaker LANMAN security" + depends on CIFS + help + Modern CIFS servers including Samba and most Windows versions + (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos) + security mechanisms. These hash the password more securely + than the mechanisms used in the older LANMAN version of the + SMB protocol needed to establish sessions with old SMB servers. + + Enabling this option allows the cifs module to mount to older + LANMAN based servers such as OS/2 and Windows 95, but such + mounts may be less secure than mounts using NTLM or more recent + security mechanisms if you are on a public network. Unless you + have a need to access old SMB servers (and are on a private + network) you probably want to say N. Even if this support + is enabled in the kernel build, they will not be used + automatically. At runtime LANMAN mounts are disabled but + can be set to required (or optional) either in + /proc/fs/cifs (see fs/cifs/README for more detail) or via an + option on the mount command. This support is disabled by + default in order to reduce the possibility of a downgrade + attack. + + If unsure, say N. + config CIFS_XATTR bool "CIFS extended attributes" depends on CIFS @@ -1704,6 +1730,16 @@ config CIFS_POSIX (such as Samba 3.10 and later) which can negotiate CIFS POSIX ACL support. If unsure, say N. +config CIFS_DEBUG2 + bool "Enable additional CIFS debugging routines + help + Enabling this option adds a few more debugging routines + to the cifs code which slightly increases the size of + the cifs module and can cause additional logging of debug + messages in some error paths, slowing performance. This + option can be turned off unless you are debugging + cifs problems. If unsure, say N. + config CIFS_EXPERIMENTAL bool "CIFS Experimental Features (EXPERIMENTAL)" depends on CIFS && EXPERIMENTAL @@ -1719,7 +1755,7 @@ config CIFS_EXPERIMENTAL If unsure, say N. config CIFS_UPCALL - bool "CIFS Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)" + bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)" depends on CIFS_EXPERIMENTAL select CONNECTOR help diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 953d2f7f88b..b878dfcff0f 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -1,3 +1,8 @@ +Version 1.44 +------------ +Rewritten sessionsetup support, including support for legacy SMB +session setup needed for OS/2 and older servers such as Windows 95 and 98. + Version 1.43 ------------ POSIX locking to servers which support CIFS POSIX Extensions diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile index 58c77254a23..a26f26ed5a1 100644 --- a/fs/cifs/Makefile +++ b/fs/cifs/Makefile @@ -3,4 +3,4 @@ # obj-$(CONFIG_CIFS) += cifs.o -cifs-objs := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o md4.o md5.o cifs_unicode.o nterr.o xattr.o cifsencrypt.o fcntl.o readdir.o ioctl.o ntlmssp.o +cifs-objs := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o md4.o md5.o cifs_unicode.o nterr.o xattr.o cifsencrypt.o fcntl.o readdir.o ioctl.o sess.o diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index f4124a32bef..7f4013a8607 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -39,7 +39,7 @@ cifs_dump_mem(char *label, void *data, int length) char *charptr = data; char buf[10], line[80]; - printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n\n", + printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n", label, length, data); for (i = 0; i < length; i += 16) { line[0] = 0; @@ -57,6 +57,57 @@ cifs_dump_mem(char *label, void *data, int length) } } +#ifdef CONFIG_CIFS_DEBUG2 +void cifs_dump_detail(struct smb_hdr * smb) +{ + cERROR(1,("Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d", + smb->Command, smb->Status.CifsError, + smb->Flags, smb->Flags2, smb->Mid, smb->Pid)); + cERROR(1,("smb buf %p len %d", smb, smbCalcSize_LE(smb))); +} + + +void cifs_dump_mids(struct TCP_Server_Info * server) +{ + struct list_head *tmp; + struct mid_q_entry * mid_entry; + + if(server == NULL) + return; + + cERROR(1,("Dump pending requests:")); + spin_lock(&GlobalMid_Lock); + list_for_each(tmp, &server->pending_mid_q) { + mid_entry = list_entry(tmp, struct mid_q_entry, qhead); + if(mid_entry) { + cERROR(1,("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d", + mid_entry->midState, + (int)mid_entry->command, + mid_entry->pid, + mid_entry->tsk, + mid_entry->mid)); +#ifdef CONFIG_CIFS_STATS2 + cERROR(1,("IsLarge: %d buf: %p time rcv: %ld now: %ld", + mid_entry->largeBuf, + mid_entry->resp_buf, + mid_entry->when_received, + jiffies)); +#endif /* STATS2 */ + cERROR(1,("IsMult: %d IsEnd: %d", mid_entry->multiRsp, + mid_entry->multiEnd)); + if(mid_entry->resp_buf) { + cifs_dump_detail(mid_entry->resp_buf); + cifs_dump_mem("existing buf: ", + mid_entry->resp_buf, + 62 /* fixme */); + } + + } + } + spin_unlock(&GlobalMid_Lock); +} +#endif /* CONFIG_CIFS_DEBUG2 */ + #ifdef CONFIG_PROC_FS static int cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset, @@ -73,7 +124,6 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset, *beginBuffer = buf + offset; - length = sprintf(buf, "Display Internal CIFS Data Structures for Debugging\n" @@ -397,10 +447,10 @@ static read_proc_t multiuser_mount_read; static write_proc_t multiuser_mount_write; static read_proc_t extended_security_read; static write_proc_t extended_security_write; -static read_proc_t ntlmv2_enabled_read; +/* static read_proc_t ntlmv2_enabled_read; static write_proc_t ntlmv2_enabled_write; static read_proc_t packet_signing_enabled_read; -static write_proc_t packet_signing_enabled_write; +static write_proc_t packet_signing_enabled_write;*/ static read_proc_t experimEnabled_read; static write_proc_t experimEnabled_write; static read_proc_t linuxExtensionsEnabled_read; @@ -469,7 +519,7 @@ cifs_proc_init(void) if (pde) pde->write_proc = lookupFlag_write; - pde = +/* pde = create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs, ntlmv2_enabled_read, NULL); if (pde) @@ -479,7 +529,7 @@ cifs_proc_init(void) create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs, packet_signing_enabled_read, NULL); if (pde) - pde->write_proc = packet_signing_enabled_write; + pde->write_proc = packet_signing_enabled_write;*/ } void @@ -496,9 +546,9 @@ cifs_proc_clean(void) #endif remove_proc_entry("MultiuserMount", proc_fs_cifs); remove_proc_entry("OplockEnabled", proc_fs_cifs); - remove_proc_entry("NTLMV2Enabled",proc_fs_cifs); +/* remove_proc_entry("NTLMV2Enabled",proc_fs_cifs); */ remove_proc_entry("ExtendedSecurity",proc_fs_cifs); - remove_proc_entry("PacketSigningEnabled",proc_fs_cifs); +/* remove_proc_entry("PacketSigningEnabled",proc_fs_cifs); */ remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs); remove_proc_entry("Experimental",proc_fs_cifs); remove_proc_entry("LookupCacheEnabled",proc_fs_cifs); @@ -787,7 +837,7 @@ extended_security_read(char *page, char **start, off_t off, { int len; - len = sprintf(page, "%d\n", extended_security); + len = sprintf(page, "0x%x\n", extended_security); len -= off; *start = page + off; @@ -808,19 +858,25 @@ extended_security_write(struct file *file, const char __user *buffer, { char c; int rc; + cERROR(1,("size %ld",count)); /* BB removeme BB */ + if((count < 2) || (count > 8)) + return -EINVAL; rc = get_user(c, buffer); + +/* BB fixme need to parse more characters in order to handle CIFSSEC flags */ + if (rc) return rc; if (c == '0' || c == 'n' || c == 'N') - extended_security = 0; + extended_security = CIFSSEC_DEF; /* default */ else if (c == '1' || c == 'y' || c == 'Y') - extended_security = 1; + extended_security = CIFSSEC_MAX; return count; } -static int +/* static int ntlmv2_enabled_read(char *page, char **start, off_t off, int count, int *eof, void *data) { @@ -855,6 +911,8 @@ ntlmv2_enabled_write(struct file *file, const char __user *buffer, ntlmv2_support = 0; else if (c == '1' || c == 'y' || c == 'Y') ntlmv2_support = 1; + else if (c == '2') + ntlmv2_support = 2; return count; } @@ -898,7 +956,7 @@ packet_signing_enabled_write(struct file *file, const char __user *buffer, sign_CIFS_PDUs = 2; return count; -} +} */ #endif diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h index 4304d9dcfb6..c26cd0d2c6d 100644 --- a/fs/cifs/cifs_debug.h +++ b/fs/cifs/cifs_debug.h @@ -24,6 +24,10 @@ #define _H_CIFS_DEBUG void cifs_dump_mem(char *label, void *data, int length); +#ifdef CONFIG_CIFS_DEBUG2 +void cifs_dump_detail(struct smb_hdr *); +void cifs_dump_mids(struct TCP_Server_Info *); +#endif extern int traceSMB; /* flag which enables the function below */ void dump_smb(struct smb_hdr *, int); #define CIFS_INFO 0x01 diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index d2b12825594..d2a8b2941fc 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -22,6 +22,7 @@ #include "cifs_unicode.h" #include "cifs_uniupr.h" #include "cifspdu.h" +#include "cifsglob.h" #include "cifs_debug.h" /* diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index e7d63737e65..08781a4698b 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -225,6 +225,8 @@ int CalcNTLMv2_partial_mac_key(struct cifsSesInfo * ses, struct nls_table * nls_ user_name_len = strlen(ses->userName); if(user_name_len > MAX_USERNAME_SIZE) return -EINVAL; + if(ses->domainName == NULL) + return -EINVAL; /* BB should we use CIFS_LINUX_DOM */ dom_name_len = strlen(ses->domainName); if(dom_name_len > MAX_USERNAME_SIZE) return -EINVAL; diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index c262d8874ce..700570522b2 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -56,8 +56,8 @@ unsigned int experimEnabled = 0; unsigned int linuxExtEnabled = 1; unsigned int lookupCacheEnabled = 1; unsigned int multiuser_mount = 0; -unsigned int extended_security = 0; -unsigned int ntlmv2_support = 0; +unsigned int extended_security = CIFSSEC_DEF; +/* unsigned int ntlmv2_support = 0; */ unsigned int sign_CIFS_PDUs = 1; extern struct task_struct * oplockThread; /* remove sparse warning */ struct task_struct * oplockThread = NULL; diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 006eb33bff5..7a042041a16 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -88,7 +88,8 @@ enum statusEnum { }; enum securityEnum { - NTLM = 0, /* Legacy NTLM012 auth with NTLM hash */ + LANMAN = 0, /* Legacy LANMAN auth */ + NTLM, /* Legacy NTLM012 auth with NTLM hash */ NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */ RawNTLMSSP, /* NTLMSSP without SPNEGO */ NTLMSSP, /* NTLMSSP via SPNEGO */ @@ -179,7 +180,9 @@ struct cifsUidInfo { struct cifsSesInfo { struct list_head cifsSessionList; struct semaphore sesSem; +#if 0 struct cifsUidInfo *uidInfo; /* pointer to user info */ +#endif struct TCP_Server_Info *server; /* pointer to server info */ atomic_t inUse; /* # of mounts (tree connections) on this ses */ enum statusEnum status; @@ -194,7 +197,7 @@ struct cifsSesInfo { char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for TCP names - will ipv6 and sctp addresses fit? */ char userName[MAX_USERNAME_SIZE + 1]; - char domainName[MAX_USERNAME_SIZE + 1]; + char * domainName; char * password; }; /* session flags */ @@ -391,9 +394,9 @@ struct mid_q_entry { struct smb_hdr *resp_buf; /* response buffer */ int midState; /* wish this were enum but can not pass to wait_event */ __u8 command; /* smb command code */ - unsigned multiPart:1; /* multiple responses to one SMB request */ unsigned largeBuf:1; /* if valid response, is pointer to large buf */ - unsigned multiResp:1; /* multiple trans2 responses for one request */ + unsigned multiRsp:1; /* multiple trans2 responses for one request */ + unsigned multiEnd:1; /* both received */ }; struct oplock_q_entry { @@ -430,15 +433,35 @@ struct dir_notify_req { #define CIFS_LARGE_BUFFER 2 #define CIFS_IOVEC 4 /* array of response buffers */ -/* Type of session setup needed */ -#define CIFS_PLAINTEXT 0 -#define CIFS_LANMAN 1 -#define CIFS_NTLM 2 -#define CIFS_NTLMSSP_NEG 3 -#define CIFS_NTLMSSP_AUTH 4 -#define CIFS_SPNEGO_INIT 5 -#define CIFS_SPNEGO_TARG 6 - +/* Security Flags: indicate type of session setup needed */ +#define CIFSSEC_MAY_SIGN 0x00001 +#define CIFSSEC_MAY_NTLM 0x00002 +#define CIFSSEC_MAY_NTLMV2 0x00004 +#define CIFSSEC_MAY_KRB5 0x00008 +#ifdef CONFIG_CIFS_WEAK_PW_HASH +#define CIFSSEC_MAY_LANMAN 0x00010 +#define CIFSSEC_MAY_PLNTXT 0x00020 +#endif /* weak passwords */ +#define CIFSSEC_MAY_SEAL 0x00040 /* not supported yet */ + +#define CIFSSEC_MUST_SIGN 0x01001 +/* note that only one of the following can be set so the +result of setting MUST flags more than once will be to +require use of the stronger protocol */ +#define CIFSSEC_MUST_NTLM 0x02002 +#define CIFSSEC_MUST_NTLMV2 0x04004 +#define CIFSSEC_MUST_KRB5 0x08008 +#ifdef CONFIG_CIFS_WEAK_PW_HASH +#define CIFSSEC_MUST_LANMAN 0x10010 +#define CIFSSEC_MUST_PLNTXT 0x20020 +#define CIFSSEC_MASK 0x37037 /* current flags supported if weak */ +#else +#define CIFSSEC_MASK 0x07007 /* flags supported if no weak config */ +#endif /* WEAK_PW_HASH */ +#define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */ + +#define CIFSSEC_DEF CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2 +#define CIFSSEC_MAX CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2 /* ***************************************************************** * All constants go here @@ -540,8 +563,8 @@ GLOBAL_EXTERN unsigned int experimEnabled; GLOBAL_EXTERN unsigned int lookupCacheEnabled; GLOBAL_EXTERN unsigned int extended_security; /* if on, session setup sent with more secure ntlmssp2 challenge/resp */ -GLOBAL_EXTERN unsigned int ntlmv2_support; /* better optional password hash */ GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */ +GLOBAL_EXTERN unsigned int secFlags; GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/ GLOBAL_EXTERN unsigned int CIFSMaxBufSize; /* max size not including hdr */ GLOBAL_EXTERN unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */ diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index b2233ac05bd..e0ff9b56cc4 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _CIFSPDU_H @@ -24,8 +24,14 @@ #include +#ifdef CONFIG_CIFS_WEAK_PW_HASH +#define LANMAN_PROT 0 +#define CIFS_PROT 1 +#else #define CIFS_PROT 0 -#define BAD_PROT CIFS_PROT+1 +#endif +#define POSIX_PROT CIFS_PROT+1 +#define BAD_PROT 0xFFFF /* SMB command codes */ /* Some commands have minimal (wct=0,bcc=0), or uninteresting, responses @@ -400,6 +406,25 @@ typedef struct negotiate_req { unsigned char DialectsArray[1]; } __attribute__((packed)) NEGOTIATE_REQ; +/* Dialect index is 13 for LANMAN */ + +typedef struct lanman_neg_rsp { + struct smb_hdr hdr; /* wct = 13 */ + __le16 DialectIndex; + __le16 SecurityMode; + __le16 MaxBufSize; + __le16 MaxMpxCount; + __le16 MaxNumberVcs; + __le16 RawMode; + __le32 SessionKey; + __le32 ServerTime; + __le16 ServerTimeZone; + __le16 EncryptionKeyLength; + __le16 Reserved; + __u16 ByteCount; + unsigned char EncryptionKey[1]; +} __attribute__((packed)) LANMAN_NEG_RSP; + typedef struct negotiate_rsp { struct smb_hdr hdr; /* wct = 17 */ __le16 DialectIndex; @@ -520,8 +545,8 @@ typedef union smb_com_session_setup_andx { __le16 MaxMpxCount; __le16 VcNumber; __u32 SessionKey; - __le16 PassswordLength; - __u32 Reserved; + __le16 PasswordLength; + __u32 Reserved; /* encrypt key len and offset */ __le16 ByteCount; unsigned char AccountPassword[1]; /* followed by */ /* STRING AccountName */ @@ -1844,13 +1869,13 @@ typedef struct { typedef struct { __le32 DeviceType; __le32 DeviceCharacteristics; -} __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info, level 0x104 */ +} __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */ typedef struct { __le32 Attributes; __le32 MaxPathNameComponentLength; __le32 FileSystemNameLen; - char FileSystemName[52]; /* do not really need to save this - so potentially get only subset of name */ + char FileSystemName[52]; /* do not have to save this - get subset? */ } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO; /******************************************************************************/ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 310ea2f0e0b..ff78cf7b0d1 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -69,7 +69,7 @@ extern int small_smb_init_no_tc(const int smb_cmd, const int wct, struct cifsSesInfo *ses, void ** request_buf); extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, - const int stage, int * pNTLMv2_flg, + const int stage, const struct nls_table *nls_cp); #endif extern __u16 GetNextMid(struct TCP_Server_Info *server); diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index f00369277c0..da3154fa9c8 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -44,8 +44,11 @@ static struct { int index; char *name; } protocols[] = { +#ifdef CONFIG_CIFS_WEAK_PW_HASH + {LANMAN_PROT, "\2LM1.2X002"}, +#endif /* weak password hashing for legacy clients */ {CIFS_PROT, "\2NT LM 0.12"}, - {CIFS_PROT, "\2POSIX 2"}, + {POSIX_PROT, "\2POSIX 2"}, {BAD_PROT, "\2"} }; #else @@ -53,11 +56,29 @@ static struct { int index; char *name; } protocols[] = { +#ifdef CONFIG_CIFS_WEAK_PW_HASH + {LANMAN_PROT, "\2LM1.2X002"}, +#endif /* weak password hashing for legacy clients */ {CIFS_PROT, "\2NT LM 0.12"}, {BAD_PROT, "\2"} }; #endif +/* define the number of elements in the cifs dialect array */ +#ifdef CONFIG_CIFS_POSIX +#ifdef CONFIG_CIFS_WEAK_PW_HASH +#define CIFS_NUM_PROT 3 +#else +#define CIFS_NUM_PROT 2 +#endif /* CIFS_WEAK_PW_HASH */ +#else /* not posix */ +#ifdef CONFIG_CIFS_WEAK_PW_HASH +#define CIFS_NUM_PROT 2 +#else +#define CIFS_NUM_PROT 1 +#endif /* CONFIG_CIFS_WEAK_PW_HASH */ +#endif /* CIFS_POSIX */ + /* Mark as invalid, all open files on tree connections since they were closed when session to server was lost */ @@ -322,7 +343,8 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* potential retries of smb operations it turns out we can determine */ /* from the mid flags when the request buffer can be resent without */ /* having to use a second distinct buffer for the response */ - *response_buf = *request_buf; + if(response_buf) + *response_buf = *request_buf; header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, wct /*wct */ ); @@ -373,6 +395,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) NEGOTIATE_RSP *pSMBr; int rc = 0; int bytes_returned; + int i; struct TCP_Server_Info * server; u16 count; @@ -388,19 +411,71 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) return rc; pSMB->hdr.Mid = GetNextMid(server); pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; - if (extended_security) - pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; - - count = strlen(protocols[0].name) + 1; - strncpy(pSMB->DialectsArray, protocols[0].name, 30); - /* null guaranteed to be at end of source and target buffers anyway */ - +/* if (extended_security) + pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;*/ + + count = 0; + for(i=0;iDialectsArray+count, protocols[i].name, 16); + count += strlen(protocols[i].name) + 1; + /* null at end of source and target buffers anyway */ + } pSMB->hdr.smb_buf_length += count; pSMB->ByteCount = cpu_to_le16(count); rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc == 0) { + cFYI(1,("Dialect: %d", pSMBr->DialectIndex)); + /* Check wct = 1 error case */ + if((pSMBr->hdr.WordCount < 13) + || (pSMBr->DialectIndex == BAD_PROT)) { + /* core returns wct = 1, but we do not ask for + core - otherwise it just comes when dialect + index is -1 indicating we could not negotiate + a common dialect */ + rc = -EOPNOTSUPP; + goto neg_err_exit; + } else if((pSMBr->hdr.WordCount == 13) && + (pSMBr->DialectIndex == LANMAN_PROT)) { + struct lanman_neg_rsp * rsp = + (struct lanman_neg_rsp *)pSMBr; + + + /* BB Mark ses struct as negotiated lanman level BB */ + server->secType = LANMAN; + server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); + server->maxReq = le16_to_cpu(rsp->MaxMpxCount); + server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), + (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); + + /* BB what do we do with raw mode? BB */ + server->timeZone = le16_to_cpu(rsp->ServerTimeZone); + /* Do we have to set signing flags? no signing + was available LANMAN - default should be ok */ + + /* BB FIXME set default dummy capabilities since + they are not returned by the server in this dialect */ + + /* get server time for time conversions and add + code to use it and timezone since this is not UTC */ + + if (rsp->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { + memcpy(server->cryptKey, rsp->EncryptionKey, + CIFS_CRYPTO_KEY_SIZE); + } else { + rc = -EIO; + goto neg_err_exit; + } + + cFYI(1,("LANMAN negotiated")); /* BB removeme BB */ + goto neg_err_exit; + } else if(pSMBr->hdr.WordCount != 17) { + /* unknown wct */ + rc = -EOPNOTSUPP; + goto neg_err_exit; + } + server->secMode = pSMBr->SecurityMode; if((server->secMode & SECMODE_USER) == 0) cFYI(1,("share mode security")); @@ -479,7 +554,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) } } - +neg_err_exit: cifs_buf_release(pSMB); return rc; } diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index bae1479318d..7ffb8f244f6 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -49,8 +49,6 @@ static DECLARE_COMPLETION(cifsd_complete); -extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, - unsigned char *p24); extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24); @@ -585,9 +583,11 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) /* merge response - fix up 1st*/ if(coalesce_t2(smb_buffer, mid_entry->resp_buf)) { + mid_entry->multiRsp = 1; break; } else { /* all parts received */ + mid_entry->multiEnd = 1; goto multi_t2_fnd; } } else { @@ -632,9 +632,14 @@ multi_t2_fnd: wake_up_process(task_to_wake); } else if ((is_valid_oplock_break(smb_buffer, server) == FALSE) && (isMultiRsp == FALSE)) { - cERROR(1, ("No task to wake, unknown frame rcvd!")); + cERROR(1, ("No task to wake, unknown frame rcvd! NumMids %d", midCount.counter)); cifs_dump_mem("Received Data is: ",(char *)smb_buffer, sizeof(struct smb_hdr)); +#ifdef CONFIG_CIFS_DEBUG2 + cifs_dump_detail(smb_buffer); + cifs_dump_mids(server); +#endif /* CIFS_DEBUG2 */ + } } /* end while !EXITING */ @@ -976,7 +981,7 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) } /* BB are there cases in which a comma can be valid in a domain name and need special handling? */ - if (strnlen(value, 65) < 65) { + if (strnlen(value, 256) < 256) { vol->domainname = value; cFYI(1, ("Domain name set")); } else { @@ -1762,9 +1767,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if (volume_info.username) strncpy(pSesInfo->userName, volume_info.username,MAX_USERNAME_SIZE); - if (volume_info.domainname) - strncpy(pSesInfo->domainName, - volume_info.domainname,MAX_USERNAME_SIZE); + if (volume_info.domainname) { + int len = strlen(volume_info.domainname); + pSesInfo->domainName = + kmalloc(len + 1, GFP_KERNEL); + if(pSesInfo->domainName) + strcpy(pSesInfo->domainName, + volume_info.domainname); + } pSesInfo->linux_uid = volume_info.linux_uid; down(&pSesInfo->sesSem); rc = cifs_setup_session(xid,pSesInfo, cifs_sb->local_nls); @@ -2054,7 +2064,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr++; } if(user == NULL) - bytes_returned = 0; /* skill null user */ + bytes_returned = 0; /* skip null user */ else bytes_returned = cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, @@ -2635,8 +2645,8 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128; if(sign_CIFS_PDUs) negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN; - if(ntlmv2_support) - negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2; +/* if(ntlmv2_support) + negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;*/ /* setup pointers to domain name and workstation name */ bcc_ptr += SecurityBlobLength; @@ -3429,7 +3439,10 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, } /* else do not bother copying these informational fields */ } - tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport); + if(smb_buffer_response->WordCount == 3) + tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport); + else + tcon->Flags = 0; cFYI(1, ("Tcon flags: 0x%x ", tcon->Flags)); } else if ((rc == 0) && tcon == NULL) { /* all we need to save for IPC$ connection */ @@ -3528,8 +3541,8 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, pSesInfo->server->timeZone)); #ifdef CONFIG_CIFS_EXPERIMENTAL if(experimEnabled > 1) - rc = CIFS_SessSetup(xid, pSesInfo, CIFS_NTLM /* type */, - &ntlmv2_flag, nls_info); + rc = CIFS_SessSetup(xid, pSesInfo, + first_time, nls_info); else #endif if (extended_security diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 57bdf7f734b..e6ed64e94b7 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -113,7 +113,7 @@ cifs_bp_rename_retry: full_path[namelen+2] = 0; BB remove above eight lines BB */ -/* Inode operations in similar order to how they appear in the Linux file fs.h */ +/* Inode operations in similar order to how they appear in Linux file fs.h */ int cifs_create(struct inode *inode, struct dentry *direntry, int mode, diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c index 633a9381132..d91a3d44e9e 100644 --- a/fs/cifs/fcntl.c +++ b/fs/cifs/fcntl.c @@ -91,14 +91,14 @@ int cifs_dir_notify(struct file * file, unsigned long arg) if(full_path == NULL) { rc = -ENOMEM; } else { - cERROR(1,("cifs dir notify on file %s with arg 0x%lx",full_path,arg)); /* BB removeme BB */ + cFYI(1,("dir notify on file %s Arg 0x%lx",full_path,arg)); rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, GENERIC_READ | SYNCHRONIZE, 0 /* create options */, &netfid, &oplock,NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); /* BB fixme - add this handle to a notify handle list */ if(rc) { - cERROR(1,("Could not open directory for notify")); /* BB remove BB */ + cFYI(1,("Could not open directory for notify")); } else { filter = convert_to_cifs_notify_flags(arg); if(filter != 0) { diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 77a9e2f912f..a609d266803 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1121,7 +1121,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) xid = GetXid(); - cFYI(1, ("In cifs_setattr, name = %s attrs->iavalid 0x%x", + cFYI(1, ("setattr on file %s attrs->iavalid 0x%x", direntry->d_name.name, attrs->ia_valid)); cifs_sb = CIFS_SB(direntry->d_inode->i_sb); @@ -1157,6 +1157,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) when the local oplock break takes longer to flush writebehind data than the SMB timeout for the SetPathInfo request would allow */ + open_file = find_writable_file(cifsInode); if (open_file) { __u16 nfid = open_file->netfid; diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index fafd056426e..22c937e5884 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -101,6 +101,7 @@ sesInfoFree(struct cifsSesInfo *buf_to_free) kfree(buf_to_free->serverDomain); kfree(buf_to_free->serverNOS); kfree(buf_to_free->password); + kfree(buf_to_free->domainName); kfree(buf_to_free); } @@ -499,11 +500,12 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv) if(pSMBr->ByteCount > sizeof(struct file_notify_information)) { data_offset = le32_to_cpu(pSMBr->DataOffset); - pnotify = (struct file_notify_information *)((char *)&pSMBr->hdr.Protocol - + data_offset); - cFYI(1,("dnotify on %s with action: 0x%x",pnotify->FileName, + pnotify = (struct file_notify_information *) + ((char *)&pSMBr->hdr.Protocol + data_offset); + cFYI(1,("dnotify on %s Action: 0x%x",pnotify->FileName, pnotify->Action)); /* BB removeme BB */ - /* cifs_dump_mem("Received notify Data is: ",buf,sizeof(struct smb_hdr)+60); */ + /* cifs_dump_mem("Rcvd notify Data: ",buf, + sizeof(struct smb_hdr)+60); */ return TRUE; } if(pSMBr->hdr.Status.CifsError) { diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 6b36c43d38f..53903a27f78 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -31,8 +31,8 @@ #include "cifs_fs_sb.h" #include "cifsfs.h" -/* BB fixme - add debug wrappers around this function to disable it fixme BB */ -/* static void dump_cifs_file_struct(struct file *file, char *label) +#ifdef CONFIG_CIFS_DEBUG2 +static void dump_cifs_file_struct(struct file *file, char *label) { struct cifsFileInfo * cf; @@ -53,7 +53,8 @@ } } -} */ +} +#endif /* DEBUG2 */ /* Returns one if new inode created (which therefore needs to be hashed) */ /* Might check in the future if inode number changed so we can rehash inode */ @@ -597,7 +598,9 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, . and .. for the root of a drive and for those we need to start two entries earlier */ -/* dump_cifs_file_struct(file, "In fce ");*/ +#ifdef CONFIG_CIFS_DEBUG2 + dump_cifs_file_struct(file, "In fce "); +#endif if(((index_to_find < cifsFile->srch_inf.index_of_last_entry) && is_dir_changed(file)) || (index_to_find < first_entry_in_buffer)) { @@ -980,9 +983,10 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) rc = cifs_filldir(current_entry, file, filldir, direntry,tmp_buf); file->f_pos++; - if(file->f_pos == cifsFile->srch_inf.index_of_last_entry) { + if(file->f_pos == + cifsFile->srch_inf.index_of_last_entry) { cFYI(1,("last entry in buf at pos %lld %s", - file->f_pos,tmp_buf)); /* BB removeme BB */ + file->f_pos,tmp_buf)); cifs_save_resume_key(current_entry,cifsFile); break; } else diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c new file mode 100644 index 00000000000..34998416eb7 --- /dev/null +++ b/fs/cifs/sess.c @@ -0,0 +1,511 @@ +/* + * fs/cifs/sess.c + * + * SMB/CIFS session setup handling routines + * + * Copyright (c) International Business Machines Corp., 2006 + * Author(s): Steve French (sfrench@us.ibm.com) + * + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "cifspdu.h" +#include "cifsglob.h" +#include "cifsproto.h" +#include "cifs_unicode.h" +#include "cifs_debug.h" +#include "ntlmssp.h" +#include "nterr.h" +#include + +extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, + unsigned char *p24); + +extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, + unsigned char *p24); + +#ifdef CONFIG_CIFS_EXPERIMENTAL + +static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) +{ + __u32 capabilities = 0; + + /* init fields common to all four types of SessSetup */ + /* note that header is initialized to zero in header_assemble */ + pSMB->req.AndXCommand = 0xFF; + pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); + pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); + + /* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */ + + /* BB verify whether signing required on neg or just on auth frame + (and NTLM case) */ + + capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | + CAP_LARGE_WRITE_X | CAP_LARGE_READ_X; + + if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + pSMB->req.hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; + + if (ses->capabilities & CAP_UNICODE) { + pSMB->req.hdr.Flags2 |= SMBFLG2_UNICODE; + capabilities |= CAP_UNICODE; + } + if (ses->capabilities & CAP_STATUS32) { + pSMB->req.hdr.Flags2 |= SMBFLG2_ERR_STATUS; + capabilities |= CAP_STATUS32; + } + if (ses->capabilities & CAP_DFS) { + pSMB->req.hdr.Flags2 |= SMBFLG2_DFS; + capabilities |= CAP_DFS; + } + if (ses->capabilities & CAP_UNIX) { + capabilities |= CAP_UNIX; + } + + /* BB check whether to init vcnum BB */ + return capabilities; +} + +void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, + const struct nls_table * nls_cp) +{ + char * bcc_ptr = *pbcc_area; + int bytes_ret = 0; + + /* BB FIXME add check that strings total less + than 335 or will need to send them as arrays */ + + /* align unicode strings, must be word aligned */ + if ((long) bcc_ptr % 2) { + *bcc_ptr = 0; + bcc_ptr++; + } + /* copy user */ + if(ses->userName == NULL) { + /* BB what about null user mounts - check that we do this BB */ + } else { /* 300 should be long enough for any conceivable user name */ + bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->userName, + 300, nls_cp); + } + bcc_ptr += 2 * bytes_ret; + bcc_ptr += 2; /* account for null termination */ + /* copy domain */ + if(ses->domainName == NULL) + bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, + "CIFS_LINUX_DOM", 32, nls_cp); + else + bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->domainName, + 256, nls_cp); + bcc_ptr += 2 * bytes_ret; + bcc_ptr += 2; /* account for null terminator */ + + /* Copy OS version */ + bytes_ret = cifs_strtoUCS((__le16 *)bcc_ptr, "Linux version ", 32, + nls_cp); + bcc_ptr += 2 * bytes_ret; + bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, + 32, nls_cp); + bcc_ptr += 2 * bytes_ret; + bcc_ptr += 2; /* trailing null */ + + bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, + 32, nls_cp); + bcc_ptr += 2 * bytes_ret; + bcc_ptr += 2; /* trailing null */ + + *pbcc_area = bcc_ptr; +} + +void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, + const struct nls_table * nls_cp) +{ + char * bcc_ptr = *pbcc_area; + + /* copy user */ + /* BB what about null user mounts - check that we do this BB */ + /* copy user */ + if(ses->userName == NULL) { + /* BB what about null user mounts - check that we do this BB */ + } else { /* 300 should be long enough for any conceivable user name */ + strncpy(bcc_ptr, ses->userName, 300); + } + /* BB improve check for overflow */ + bcc_ptr += strnlen(ses->userName, 200); + *bcc_ptr = 0; + bcc_ptr++; /* account for null termination */ + + /* copy domain */ + + if(ses->domainName == NULL) { + strcpy(bcc_ptr, "CIFS_LINUX_DOM"); + bcc_ptr += 14; /* strlen(CIFS_LINUX_DOM) */ + } else { + strncpy(bcc_ptr, ses->domainName, 256); + bcc_ptr += strnlen(ses->domainName, 256); + } + *bcc_ptr = 0; + bcc_ptr++; + + /* BB check for overflow here */ + + strcpy(bcc_ptr, "Linux version "); + bcc_ptr += strlen("Linux version "); + strcpy(bcc_ptr, system_utsname.release); + bcc_ptr += strlen(system_utsname.release) + 1; + + strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); + bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; + + *pbcc_area = bcc_ptr; +} + +int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, + const struct nls_table * nls_cp) +{ + int rc = 0; + int words_left, len; + char * data = *pbcc_area; + + + + cFYI(1,("bleft %d",bleft)); + + + /* word align, if bytes remaining is not even */ + if(bleft % 2) { + bleft--; + data++; + } + words_left = bleft / 2; + + /* save off server operating system */ + len = UniStrnlen((wchar_t *) data, words_left); + +/* We look for obvious messed up bcc or strings in response so we do not go off + the end since (at least) WIN2K and Windows XP have a major bug in not null + terminating last Unicode string in response */ + if(len >= words_left) + return rc; + + if(ses->serverOS) + kfree(ses->serverOS); + /* UTF-8 string will not grow more than four times as big as UCS-16 */ + ses->serverOS = kzalloc(4 * len, GFP_KERNEL); + if(ses->serverOS != NULL) { + cifs_strfromUCS_le(ses->serverOS, (__le16 *)data, len, + nls_cp); + } + data += 2 * (len + 1); + words_left -= len + 1; + + /* save off server network operating system */ + len = UniStrnlen((wchar_t *) data, words_left); + + if(len >= words_left) + return rc; + + if(ses->serverNOS) + kfree(ses->serverNOS); + ses->serverNOS = kzalloc(4 * len, GFP_KERNEL); /* BB this is wrong length FIXME BB */ + if(ses->serverNOS != NULL) { + cifs_strfromUCS_le(ses->serverNOS, (__le16 *)data, len, + nls_cp); + if(strncmp(ses->serverNOS, "NT LAN Manager 4",16) == 0) { + cFYI(1,("NT4 server")); + ses->flags |= CIFS_SES_NT4; + } + } + data += 2 * (len + 1); + words_left -= len + 1; + + /* save off server domain */ + len = UniStrnlen((wchar_t *) data, words_left); + + if(len > words_left) + return rc; + + if(ses->serverDomain) + kfree(ses->serverDomain); + ses->serverDomain = kzalloc(2 * (len + 1), GFP_KERNEL); /* BB FIXME wrong length */ + if(ses->serverDomain != NULL) { + cifs_strfromUCS_le(ses->serverDomain, (__le16 *)data, len, + nls_cp); + ses->serverDomain[2*len] = 0; + ses->serverDomain[(2*len) + 1] = 0; + } + data += 2 * (len + 1); + words_left -= len + 1; + + cFYI(1,("words left: %d",words_left)); + + return rc; +} + +int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, + const struct nls_table * nls_cp) +{ + int rc = 0; + int len; + char * bcc_ptr = *pbcc_area; + + cFYI(1,("decode sessetup ascii. bleft %d", bleft)); + + len = strnlen(bcc_ptr, bleft); + if(len >= bleft) + return rc; + + if(ses->serverOS) + kfree(ses->serverOS); + + ses->serverOS = kzalloc(len + 1, GFP_KERNEL); + if(ses->serverOS) + strncpy(ses->serverOS, bcc_ptr, len); + + bcc_ptr += len + 1; + bleft -= len + 1; + + len = strnlen(bcc_ptr, bleft); + if(len >= bleft) + return rc; + + if(ses->serverNOS) + kfree(ses->serverNOS); + + ses->serverNOS = kzalloc(len + 1, GFP_KERNEL); + if(ses->serverNOS) + strncpy(ses->serverNOS, bcc_ptr, len); + + bcc_ptr += len + 1; + bleft -= len + 1; + + len = strnlen(bcc_ptr, bleft); + if(len > bleft) + return rc; + + if(ses->serverDomain) + kfree(ses->serverDomain); + + ses->serverDomain = kzalloc(len + 1, GFP_KERNEL); + if(ses->serverOS) + strncpy(ses->serverOS, bcc_ptr, len); + + bcc_ptr += len + 1; + bleft -= len + 1; + + cFYI(1,("ascii: bytes left %d",bleft)); + + return rc; +} + +int +CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, + const struct nls_table *nls_cp) +{ + int rc = 0; + int wct; + int i; + struct smb_hdr *smb_buf; + char *bcc_ptr; + SESSION_SETUP_ANDX *pSMB; + __u32 capabilities; + int count; + int resp_buf_type = 0; + struct kvec iov[1]; + enum securityEnum type; + __u16 action; + int bytes_remaining; + + if(ses == NULL) + return -EINVAL; + + type = ses->server->secType; + if(type == LANMAN) { +#ifndef CONFIG_CIFS_WEAK_PW_HASH + /* LANMAN and plaintext are less secure and off by default. + So we make this explicitly be turned on in kconfig (in the + build) and turned on at runtime (changed from the default) + in proc/fs/cifs or via mount parm. Unfortunately this is + needed for old Win (e.g. Win95), some obscure NAS and OS/2 */ + return -EOPNOTSUPP; +#endif + wct = 10; /* lanman 2 style sessionsetup */ + } else if(type == NTLM) /* NTLMv2 may retry NTLM */ + wct = 13; /* old style NTLM sessionsetup */ + else /* same size for negotiate or auth, NTLMSSP or extended security */ + wct = 12; + + rc = small_smb_init_no_tc(SMB_COM_SESSION_SETUP_ANDX, wct, ses, + (void **)&smb_buf); + if(rc) + return rc; + + pSMB = (SESSION_SETUP_ANDX *)smb_buf; + + capabilities = cifs_ssetup_hdr(ses, pSMB); + bcc_ptr = pByteArea(smb_buf); + + if(type == LANMAN) { +#ifdef CONFIG_CIFS_WEAK_PW_HASH + char lnm_session_key[CIFS_SESSION_KEY_SIZE]; + char password_with_pad[CIFS_ENCPWD_SIZE]; + + /* no capabilities flags in old lanman negotiation */ + + pSMB->old_req.PasswordLength = CIFS_SESSION_KEY_SIZE; + /* BB calculate hash with password */ + /* and copy into bcc */ + + memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); + strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE); + + /* calculate old style session key */ + /* toupper may be less broken then repeatedly calling + nls_toupper would be, but neither handles multibyte code pages + but the only alternative would be converting to UCS-16 (Unicode) + uppercasing and converting back which is only worth doing if + we knew it were utf8. utf8 code page needs its own + toupper and tolower and strnicmp functions */ + + for(i = 0; i< CIFS_ENCPWD_SIZE; i++) { + password_with_pad[i] = toupper(password_with_pad[i]); + } + + SMBencrypt(password_with_pad, ses->server->cryptKey, + lnm_session_key); + +#ifdef CONFIG_CIFS_DEBUG2 + cifs_dump_mem("cryptkey: ",ses->server->cryptKey, + CIFS_SESSION_KEY_SIZE); +#endif + /* clear password before we return/free memory */ + memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); + memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESSION_KEY_SIZE); + bcc_ptr += CIFS_SESSION_KEY_SIZE; + + /* can not sign if LANMAN negotiated so no need + to calculate signing key? but what if server + changed to do higher than lanman dialect and + we reconnected would we ever calc signing_key? */ + + cERROR(1,("Negotiating LANMAN setting up strings")); + /* Unicode not allowed for LANMAN dialects */ + ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); +#endif + } else if (type == NTLM) { + char ntlm_session_key[CIFS_SESSION_KEY_SIZE]; + + pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); + pSMB->req_no_secext.CaseInsensitivePasswordLength = + cpu_to_le16(CIFS_SESSION_KEY_SIZE); + pSMB->req_no_secext.CaseSensitivePasswordLength = + cpu_to_le16(CIFS_SESSION_KEY_SIZE); + + /* calculate session key */ + SMBNTencrypt(ses->password, ses->server->cryptKey, + ntlm_session_key); + + if(first_time) /* should this be moved into common code + with similar ntlmv2 path? */ + cifs_calculate_mac_key( + ses->server->mac_signing_key, + ntlm_session_key, ses->password); + /* copy session key */ + + memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESSION_KEY_SIZE); + bcc_ptr += CIFS_SESSION_KEY_SIZE; + memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESSION_KEY_SIZE); + bcc_ptr += CIFS_SESSION_KEY_SIZE; + if(ses->capabilities & CAP_UNICODE) + unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); + else + ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); + } else /* NTLMSSP or SPNEGO */ { + pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; + capabilities |= CAP_EXTENDED_SECURITY; + pSMB->req.Capabilities = cpu_to_le32(capabilities); + /* BB set password lengths */ + } + + count = (long) bcc_ptr - (long) pByteArea(smb_buf); + smb_buf->smb_buf_length += count; + + /* if we switch to small buffers, count will need to be fewer + than 383 (strings less than 335 bytes) */ + + BCC_LE(smb_buf) = cpu_to_le16(count); + + + /* BB FIXME check for other non ntlm code paths */ + + /* BB check is this too big for a small smb? */ + + iov[0].iov_base = (char *)pSMB; + iov[0].iov_len = smb_buf->smb_buf_length + 4; + + rc = SendReceive2(xid, ses, iov, 1 /* num_iovecs */, &resp_buf_type, 0); + /* SMB request buf freed in SendReceive2 */ + + cFYI(1,("ssetup rc from sendrecv2 is %d",rc)); + if(rc) + goto ssetup_exit; + + pSMB = (SESSION_SETUP_ANDX *)iov[0].iov_base; + smb_buf = (struct smb_hdr *)iov[0].iov_base; + + if((smb_buf->WordCount != 3) && (smb_buf->WordCount != 4)) { + rc = -EIO; + cERROR(1,("bad word count %d", smb_buf->WordCount)); + goto ssetup_exit; + } + action = le16_to_cpu(pSMB->resp.Action); + if (action & GUEST_LOGIN) + cFYI(1, (" Guest login")); /* BB mark SesInfo struct? */ + ses->Suid = smb_buf->Uid; /* UID left in wire format (le) */ + cFYI(1, ("UID = %d ", ses->Suid)); + /* response can have either 3 or 4 word count - Samba sends 3 */ + /* and lanman response is 3 */ + bytes_remaining = BCC(smb_buf); + bcc_ptr = pByteArea(smb_buf); + + if(smb_buf->WordCount == 4) { + __u16 blob_len; + blob_len = le16_to_cpu(pSMB->resp.SecurityBlobLength); + bcc_ptr += blob_len; + if(blob_len > bytes_remaining) { + cERROR(1,("bad security blob length %d", blob_len)); + rc = -EINVAL; + goto ssetup_exit; + } + bytes_remaining -= blob_len; + } + + /* BB check if Unicode and decode strings */ + if(smb_buf->Flags2 & SMBFLG2_UNICODE) + rc = decode_unicode_ssetup(&bcc_ptr, bytes_remaining, + ses, nls_cp); + else + rc = decode_ascii_ssetup(&bcc_ptr, bytes_remaining, ses,nls_cp); + +ssetup_exit: + if(resp_buf_type == CIFS_SMALL_BUFFER) { + cFYI(1,("ssetup freeing small buf %p", iov[0].iov_base)); + cifs_small_buf_release(iov[0].iov_base); + } else if(resp_buf_type == CIFS_LARGE_BUFFER) + cifs_buf_release(iov[0].iov_base); + + return rc; +} +#endif /* CONFIG_CIFS_EXPERIMENTAL */ diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c index 6103bcdfb16..f518c5e4503 100644 --- a/fs/cifs/smbencrypt.c +++ b/fs/cifs/smbencrypt.c @@ -30,6 +30,7 @@ #include #include "cifs_unicode.h" #include "cifspdu.h" +#include "cifsglob.h" #include "md5.h" #include "cifs_debug.h" #include "cifsencrypt.h" -- cgit v1.2.3 From 9c53588ec96d85f82e9bf3fb1af7cca31056e940 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 1 Jun 2006 05:09:10 +0000 Subject: [CIFS] Missing include shows up on some architectures Signed-off-by: Steve French --- fs/cifs/cifsfs.h | 2 +- fs/cifs/ntlmssp.c | 143 ------------------------------------------------------ fs/cifs/sess.c | 1 + 3 files changed, 2 insertions(+), 144 deletions(-) delete mode 100644 fs/cifs/ntlmssp.c diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index c98755dca86..2fc6d6527f1 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -99,5 +99,5 @@ extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t); extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); extern int cifs_ioctl (struct inode * inode, struct file * filep, unsigned int command, unsigned long arg); -#define CIFS_VERSION "1.43" +#define CIFS_VERSION "1.44" #endif /* _CIFSFS_H */ diff --git a/fs/cifs/ntlmssp.c b/fs/cifs/ntlmssp.c deleted file mode 100644 index 115359cc7a3..00000000000 --- a/fs/cifs/ntlmssp.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * fs/cifs/ntlmssp.h - * - * Copyright (c) International Business Machines Corp., 2006 - * Author(s): Steve French (sfrench@us.ibm.com) - * - * This library is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as published - * by the Free Software Foundation; either version 2.1 of the License, or - * (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public License - * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include "cifspdu.h" -#include "cifsglob.h" -#include "cifsproto.h" -#include "cifs_unicode.h" -#include "cifs_debug.h" -#include "ntlmssp.h" -#include "nterr.h" - -#ifdef CONFIG_CIFS_EXPERIMENTAL -static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) -{ - __u32 capabilities = 0; - - /* init fields common to all four types of SessSetup */ - /* note that header is initialized to zero in header_assemble */ - pSMB->req.AndXCommand = 0xFF; - pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); - pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); - - /* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */ - - /* BB verify whether signing required on neg or just on auth frame - (and NTLM case) */ - - capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | - CAP_LARGE_WRITE_X | CAP_LARGE_READ_X; - - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) - pSMB->req.hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; - - if (ses->capabilities & CAP_UNICODE) { - pSMB->req.hdr.Flags2 |= SMBFLG2_UNICODE; - capabilities |= CAP_UNICODE; - } - if (ses->capabilities & CAP_STATUS32) { - pSMB->req.hdr.Flags2 |= SMBFLG2_ERR_STATUS; - capabilities |= CAP_STATUS32; - } - if (ses->capabilities & CAP_DFS) { - pSMB->req.hdr.Flags2 |= SMBFLG2_DFS; - capabilities |= CAP_DFS; - } - - /* BB check whether to init vcnum BB */ - return capabilities; -} -int -CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, const int type, - int * pNTLMv2_flg, const struct nls_table *nls_cp) -{ - int rc = 0; - int wct; - struct smb_hdr *smb_buffer; - char *bcc_ptr; - SESSION_SETUP_ANDX *pSMB; - __u32 capabilities; - - if(ses == NULL) - return -EINVAL; - - cFYI(1,("SStp type: %d",type)); - if(type < CIFS_NTLM) { -#ifndef CONFIG_CIFS_WEAK_PW_HASH - /* LANMAN and plaintext are less secure and off by default. - So we make this explicitly be turned on in kconfig (in the - build) and turned on at runtime (changed from the default) - in proc/fs/cifs or via mount parm. Unfortunately this is - needed for old Win (e.g. Win95), some obscure NAS and OS/2 */ - return -EOPNOTSUPP; -#endif - wct = 10; /* lanman 2 style sessionsetup */ - } else if(type < CIFS_NTLMSSP_NEG) - wct = 13; /* old style NTLM sessionsetup */ - else /* same size for negotiate or auth, NTLMSSP or extended security */ - wct = 12; - - rc = small_smb_init_no_tc(SMB_COM_SESSION_SETUP_ANDX, wct, ses, - (void **)&smb_buffer); - if(rc) - return rc; - - pSMB = (SESSION_SETUP_ANDX *)smb_buffer; - - capabilities = cifs_ssetup_hdr(ses, pSMB); - bcc_ptr = pByteArea(smb_buffer); - if(type > CIFS_NTLM) { - pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; - capabilities |= CAP_EXTENDED_SECURITY; - pSMB->req.Capabilities = cpu_to_le32(capabilities); - /* BB set password lengths */ - } else if(type < CIFS_NTLM) /* lanman */ { - /* no capabilities flags in old lanman negotiation */ - /* pSMB->old_req.PasswordLength = */ /* BB fixme BB */ - } else /* type CIFS_NTLM */ { - pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); - pSMB->req_no_secext.CaseInsensitivePasswordLength = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); - pSMB->req_no_secext.CaseSensitivePasswordLength = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); - } - - - /* copy session key */ - - /* if Unicode, align strings to two byte boundary */ - - /* copy user name */ /* BB Do we need to special case null user name? */ - - /* copy domain name */ - - /* copy Linux version */ - - /* copy network operating system name */ - - /* update bcc and smb buffer length */ - -/* rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buf_type, 0); */ - /* SMB request buf freed in SendReceive2 */ - - return rc; -} -#endif /* CONFIG_CIFS_EXPERIMENTAL */ diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 34998416eb7..fdc248fffa0 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -29,6 +29,7 @@ #include "ntlmssp.h" #include "nterr.h" #include +#include extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24); -- cgit v1.2.3 From 7c7b25bc8e392aea781324efa771bc191377b876 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 1 Jun 2006 19:20:10 +0000 Subject: [CIFS] Support for setting up SMB sessions to legacy lanman servers part 2 --- fs/cifs/cifs_debug.c | 4 +-- fs/cifs/cifsencrypt.c | 40 +++++++++++++++++++-- fs/cifs/cifsglob.h | 2 +- fs/cifs/cifspdu.h | 3 +- fs/cifs/cifsproto.h | 3 ++ fs/cifs/cifssmb.c | 27 +++++++++++--- fs/cifs/connect.c | 47 +++++++++++++++---------- fs/cifs/netmisc.c | 2 +- fs/cifs/sess.c | 97 ++++++++++++++++++++++++++++----------------------- 9 files changed, 150 insertions(+), 75 deletions(-) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 7f4013a8607..4e10e21c54f 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -508,7 +508,7 @@ cifs_proc_init(void) pde->write_proc = multiuser_mount_write; pde = - create_proc_read_entry("ExtendedSecurity", 0, proc_fs_cifs, + create_proc_read_entry("SecurityFlags", 0, proc_fs_cifs, extended_security_read, NULL); if (pde) pde->write_proc = extended_security_write; @@ -547,7 +547,7 @@ cifs_proc_clean(void) remove_proc_entry("MultiuserMount", proc_fs_cifs); remove_proc_entry("OplockEnabled", proc_fs_cifs); /* remove_proc_entry("NTLMV2Enabled",proc_fs_cifs); */ - remove_proc_entry("ExtendedSecurity",proc_fs_cifs); + remove_proc_entry("SecurityFlags",proc_fs_cifs); /* remove_proc_entry("PacketSigningEnabled",proc_fs_cifs); */ remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs); remove_proc_entry("Experimental",proc_fs_cifs); diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 08781a4698b..e11d8c6bb22 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -26,6 +26,7 @@ #include "md5.h" #include "cifs_unicode.h" #include "cifsproto.h" +#include /* Calculate and return the CIFS signature based on the mac key and the smb pdu */ /* the 16 byte signature must be allocated by the caller */ @@ -35,6 +36,8 @@ extern void mdfour(unsigned char *out, unsigned char *in, int n); extern void E_md4hash(const unsigned char *passwd, unsigned char *p16); +extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, + unsigned char *p24); static int cifs_calculate_signature(const struct smb_hdr * cifs_pdu, const char * key, char * signature) @@ -45,7 +48,7 @@ static int cifs_calculate_signature(const struct smb_hdr * cifs_pdu, return -EINVAL; MD5Init(&context); - MD5Update(&context,key,CIFS_SESSION_KEY_SIZE+16); + MD5Update(&context,key,CIFS_SESS_KEY_SIZE+16); MD5Update(&context,cifs_pdu->Protocol,cifs_pdu->smb_buf_length); MD5Final(signature,&context); return 0; @@ -90,7 +93,7 @@ static int cifs_calc_signature2(const struct kvec * iov, int n_vec, return -EINVAL; MD5Init(&context); - MD5Update(&context,key,CIFS_SESSION_KEY_SIZE+16); + MD5Update(&context,key,CIFS_SESS_KEY_SIZE+16); for(i=0;ipassword, CIFS_ENCPWD_SIZE); + + /* calculate old style session key */ + /* calling toupper is less broken than repeatedly + calling nls_toupper would be since that will never + work for UTF8, but neither handles multibyte code pages + but the only alternative would be converting to UCS-16 (Unicode) + (using a routine something like UniStrupr) then + uppercasing and then converting back from Unicode - which + would only worth doing it if we knew it were utf8. Basically + utf8 and other multibyte codepages each need their own strupper + function since a byte at a time will ont work. */ + + for(i = 0; i < CIFS_ENCPWD_SIZE; i++) { + password_with_pad[i] = toupper(password_with_pad[i]); + } + + SMBencrypt(password_with_pad, ses->server->cryptKey, lnm_session_key); + /* clear password before we return/free memory */ + memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); +} +#endif /* CIFS_WEAK_PW_HASH */ + void CalcNTLMv2_response(const struct cifsSesInfo * ses,char * v2_session_response) { struct HMACMD5Context context; diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 7a042041a16..975e69a2e1c 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -158,7 +158,7 @@ struct TCP_Server_Info { /* 16th byte of RFC1001 workstation name is always null */ char workstation_RFC1001_name[SERVER_NAME_LEN_WITH_NULL]; __u32 sequence_number; /* needed for CIFS PDU signature */ - char mac_signing_key[CIFS_SESSION_KEY_SIZE + 16]; + char mac_signing_key[CIFS_SESS_KEY_SIZE + 16]; }; /* diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index e0ff9b56cc4..135941738d9 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -116,7 +116,8 @@ /* * Size of the session key (crypto key encrypted with the password */ -#define CIFS_SESSION_KEY_SIZE (24) +#define CIFS_SESS_KEY_SIZE (24) +#define V2_SESS_KEY_SIZE (86) /* * Maximum user name length diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index ff78cf7b0d1..59b037f1451 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -287,6 +287,9 @@ extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key, extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass); extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, struct nls_table *); extern void CalcNTLMv2_response(const struct cifsSesInfo *,char * ); +#ifdef CONFIG_CIFS_WEAK_PW_HASH +extern void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key); +#endif /* CIFS_WEAK_PW_HASH */ extern int CIFSSMBCopy(int xid, struct cifsTconInfo *source_tcon, const char *fromName, diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index da3154fa9c8..6b5be6d59f0 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -438,12 +438,19 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) goto neg_err_exit; } else if((pSMBr->hdr.WordCount == 13) && (pSMBr->DialectIndex == LANMAN_PROT)) { +#ifdef CONFIG_CIFS_WEAK_PW_HASH struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; - - /* BB Mark ses struct as negotiated lanman level BB */ - server->secType = LANMAN; + if((extended_security & CIFSSEC_MAY_LANMAN) || + (extended_security & CIFSSEC_MAY_PLNTXT)) + server->secType = LANMAN; + else { + cERROR(1, ("mount failed weak security disabled" + " in /proc/fs/cifs/SecurityFlags")); + rc = -EOPNOTSUPP; + goto neg_err_exit; + } server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); server->maxReq = le16_to_cpu(rsp->MaxMpxCount); server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), @@ -469,6 +476,11 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) } cFYI(1,("LANMAN negotiated")); /* BB removeme BB */ +#else /* weak security disabled */ + cERROR(1,("mount failed, cifs module not built with " + "CIFS_WEAK_PW_HASH support")); + rc = -EOPNOTSUPP; +#endif /* WEAK_PW_HASH */ goto neg_err_exit; } else if(pSMBr->hdr.WordCount != 17) { /* unknown wct */ @@ -479,8 +491,13 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) server->secMode = pSMBr->SecurityMode; if((server->secMode & SECMODE_USER) == 0) cFYI(1,("share mode security")); - server->secType = NTLM; /* BB override default for - NTLMv2 or kerberos v5 */ + + if(extended_security & CIFSSEC_MUST_NTLMV2) + server->secType = NTLMv2; + else + server->secType = NTLM; + /* else krb5 ... */ + /* one byte - no need to convert this or EncryptionKeyLen from little endian */ server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 7ffb8f244f6..e6f3d2fff6c 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1990,7 +1990,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, static int CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, - char session_key[CIFS_SESSION_KEY_SIZE], + char session_key[CIFS_SESS_KEY_SIZE], const struct nls_table *nls_codepage) { struct smb_hdr *smb_buffer; @@ -2048,15 +2048,15 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); pSMB->req_no_secext.CaseInsensitivePasswordLength = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); + cpu_to_le16(CIFS_SESS_KEY_SIZE); pSMB->req_no_secext.CaseSensitivePasswordLength = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); + cpu_to_le16(CIFS_SESS_KEY_SIZE); bcc_ptr = pByteArea(smb_buffer); - memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE); - bcc_ptr += CIFS_SESSION_KEY_SIZE; - memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE); - bcc_ptr += CIFS_SESSION_KEY_SIZE; + memcpy(bcc_ptr, (char *) session_key, CIFS_SESS_KEY_SIZE); + bcc_ptr += CIFS_SESS_KEY_SIZE; + memcpy(bcc_ptr, (char *) session_key, CIFS_SESS_KEY_SIZE); + bcc_ptr += CIFS_SESS_KEY_SIZE; if (ses->capabilities & CAP_UNICODE) { if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode */ @@ -3004,14 +3004,14 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, SecurityBlob->LmChallengeResponse.Buffer = 0; SecurityBlob->NtChallengeResponse.Length = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); + cpu_to_le16(CIFS_SESS_KEY_SIZE); SecurityBlob->NtChallengeResponse.MaximumLength = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); - memcpy(bcc_ptr, ntlm_session_key, CIFS_SESSION_KEY_SIZE); + cpu_to_le16(CIFS_SESS_KEY_SIZE); + memcpy(bcc_ptr, ntlm_session_key, CIFS_SESS_KEY_SIZE); SecurityBlob->NtChallengeResponse.Buffer = cpu_to_le32(SecurityBlobLength); - SecurityBlobLength += CIFS_SESSION_KEY_SIZE; - bcc_ptr += CIFS_SESSION_KEY_SIZE; + SecurityBlobLength += CIFS_SESS_KEY_SIZE; + bcc_ptr += CIFS_SESS_KEY_SIZE; if (ses->capabilities & CAP_UNICODE) { if (domain == NULL) { @@ -3350,22 +3350,33 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr = &pSMB->Password[0]; if((ses->server->secMode) & SECMODE_USER) { pSMB->PasswordLength = cpu_to_le16(1); /* minimum */ + *bcc_ptr = 0; /* password is null byte */ bcc_ptr++; /* skip password */ + /* already aligned so no need to do it below */ } else { - pSMB->PasswordLength = cpu_to_le16(CIFS_SESSION_KEY_SIZE); + pSMB->PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); /* BB FIXME add code to fail this if NTLMv2 or Kerberos specified as required (when that support is added to the vfs in the future) as only NTLM or the much - weaker LANMAN (which we do not send) is accepted + weaker LANMAN (which we do not send by default) is accepted by Samba (not sure whether other servers allow NTLMv2 password here) */ +#ifdef CONFIG_CIFS_WEAK_PW_HASH + if((extended_security & CIFSSEC_MAY_LANMAN) && + (ses->server->secType == LANMAN)) + calc_lanman_hash(ses, bcc_ptr); + else +#endif /* CIFS_WEAK_PW_HASH */ SMBNTencrypt(ses->password, ses->server->cryptKey, bcc_ptr); - bcc_ptr += CIFS_SESSION_KEY_SIZE; - *bcc_ptr = 0; - bcc_ptr++; /* align */ + bcc_ptr += CIFS_SESS_KEY_SIZE; + if(ses->capabilities & CAP_UNICODE) { + /* must align unicode strings */ + *bcc_ptr = 0; /* null byte password */ + bcc_ptr++; + } } if(ses->server->secMode & @@ -3507,7 +3518,7 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, struct nls_table * nls_info) { int rc = 0; - char ntlm_session_key[CIFS_SESSION_KEY_SIZE]; + char ntlm_session_key[CIFS_SESS_KEY_SIZE]; int ntlmv2_flag = FALSE; int first_time = 0; diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 5de74d216fd..a0bcdd6f4a6 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -84,7 +84,7 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = { static const struct smb_to_posix_error mapping_table_ERRSRV[] = { {ERRerror, -EIO}, - {ERRbadpw, -EPERM}, + {ERRbadpw, -EACCES}, /* was EPERM */ {ERRbadtype, -EREMOTE}, {ERRaccess, -EACCES}, {ERRinvtid, -ENXIO}, diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index fdc248fffa0..a52aacb3fef 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -28,12 +28,8 @@ #include "cifs_debug.h" #include "ntlmssp.h" #include "nterr.h" -#include #include -extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, - unsigned char *p24); - extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24); @@ -80,7 +76,7 @@ static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) return capabilities; } -void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, +static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, const struct nls_table * nls_cp) { char * bcc_ptr = *pbcc_area; @@ -130,7 +126,7 @@ void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, *pbcc_area = bcc_ptr; } -void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, +static void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, const struct nls_table * nls_cp) { char * bcc_ptr = *pbcc_area; @@ -173,7 +169,7 @@ void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, *pbcc_area = bcc_ptr; } -int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, +static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, const struct nls_table * nls_cp) { int rc = 0; @@ -255,7 +251,7 @@ int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, return rc; } -int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, +static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, const struct nls_table * nls_cp) { int rc = 0; @@ -317,7 +313,6 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, { int rc = 0; int wct; - int i; struct smb_hdr *smb_buf; char *bcc_ptr; SESSION_SETUP_ANDX *pSMB; @@ -343,7 +338,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, return -EOPNOTSUPP; #endif wct = 10; /* lanman 2 style sessionsetup */ - } else if(type == NTLM) /* NTLMv2 may retry NTLM */ + } else if((type == NTLM) || (type == NTLMv2)) /* NTLMv2 may retry NTLM */ wct = 13; /* old style NTLM sessionsetup */ else /* same size for negotiate or auth, NTLMSSP or extended security */ wct = 12; @@ -360,41 +355,22 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, if(type == LANMAN) { #ifdef CONFIG_CIFS_WEAK_PW_HASH - char lnm_session_key[CIFS_SESSION_KEY_SIZE]; - char password_with_pad[CIFS_ENCPWD_SIZE]; + char lnm_session_key[CIFS_SESS_KEY_SIZE]; /* no capabilities flags in old lanman negotiation */ - pSMB->old_req.PasswordLength = CIFS_SESSION_KEY_SIZE; + pSMB->old_req.PasswordLength = CIFS_SESS_KEY_SIZE; /* BB calculate hash with password */ /* and copy into bcc */ - memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); - strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE); - - /* calculate old style session key */ - /* toupper may be less broken then repeatedly calling - nls_toupper would be, but neither handles multibyte code pages - but the only alternative would be converting to UCS-16 (Unicode) - uppercasing and converting back which is only worth doing if - we knew it were utf8. utf8 code page needs its own - toupper and tolower and strnicmp functions */ - - for(i = 0; i< CIFS_ENCPWD_SIZE; i++) { - password_with_pad[i] = toupper(password_with_pad[i]); - } - - SMBencrypt(password_with_pad, ses->server->cryptKey, - lnm_session_key); + calc_lanman_hash(ses, lnm_session_key); #ifdef CONFIG_CIFS_DEBUG2 cifs_dump_mem("cryptkey: ",ses->server->cryptKey, - CIFS_SESSION_KEY_SIZE); + CIFS_SESS_KEY_SIZE); #endif - /* clear password before we return/free memory */ - memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); - memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESSION_KEY_SIZE); - bcc_ptr += CIFS_SESSION_KEY_SIZE; + memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESS_KEY_SIZE); + bcc_ptr += CIFS_SESS_KEY_SIZE; /* can not sign if LANMAN negotiated so no need to calculate signing key? but what if server @@ -406,13 +382,13 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); #endif } else if (type == NTLM) { - char ntlm_session_key[CIFS_SESSION_KEY_SIZE]; + char ntlm_session_key[CIFS_SESS_KEY_SIZE]; pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); pSMB->req_no_secext.CaseInsensitivePasswordLength = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); + cpu_to_le16(CIFS_SESS_KEY_SIZE); pSMB->req_no_secext.CaseSensitivePasswordLength = - cpu_to_le16(CIFS_SESSION_KEY_SIZE); + cpu_to_le16(CIFS_SESS_KEY_SIZE); /* calculate session key */ SMBNTencrypt(ses->password, ses->server->cryptKey, @@ -420,15 +396,48 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, if(first_time) /* should this be moved into common code with similar ntlmv2 path? */ - cifs_calculate_mac_key( - ses->server->mac_signing_key, + cifs_calculate_mac_key( ses->server->mac_signing_key, ntlm_session_key, ses->password); /* copy session key */ - memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESSION_KEY_SIZE); - bcc_ptr += CIFS_SESSION_KEY_SIZE; - memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESSION_KEY_SIZE); - bcc_ptr += CIFS_SESSION_KEY_SIZE; + memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESS_KEY_SIZE); + bcc_ptr += CIFS_SESS_KEY_SIZE; + memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESS_KEY_SIZE); + bcc_ptr += CIFS_SESS_KEY_SIZE; + if(ses->capabilities & CAP_UNICODE) + unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); + else + ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); + } else if (type == NTLMv2) { + char * v2_sess_key = kmalloc(V2_SESS_KEY_SIZE, GFP_KERNEL); + + if(v2_sess_key == NULL) { + cifs_small_buf_release(smb_buf); + return -ENOMEM; + } + + pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); + + /* LM2 password would be here if we supported it */ + pSMB->req_no_secext.CaseInsensitivePasswordLength = 0; + /* cpu_to_le16(LM2_SESS_KEY_SIZE); */ + + pSMB->req_no_secext.CaseSensitivePasswordLength = + cpu_to_le16(V2_SESS_KEY_SIZE); + + /* calculate session key */ + CalcNTLMv2_response(ses, v2_sess_key); + if(first_time) /* should this be moved into common code + with similar ntlmv2 path? */ + /* cifs_calculate_ntlmv2_mac_key(ses->server->mac_signing_key, + response BB FIXME, v2_sess_key); */ + + /* copy session key */ + + /* memcpy(bcc_ptr, (char *)ntlm_session_key,LM2_SESS_KEY_SIZE); + bcc_ptr += LM2_SESS_KEY_SIZE; */ + memcpy(bcc_ptr, (char *)v2_sess_key, V2_SESS_KEY_SIZE); + bcc_ptr += V2_SESS_KEY_SIZE; if(ses->capabilities & CAP_UNICODE) unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); else -- cgit v1.2.3 From 3856a9d443ee24248683c415e535f7a2b0fed0f3 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 1 Jun 2006 19:38:46 +0000 Subject: [CIFS] Fix minor build breaks due to cifs kconfig issues Signed-off-by: Steve French --- fs/Kconfig | 2 +- fs/cifs/cifssmb.c | 11 ++++++----- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index c4eaacb8607..d49b2a8c0be 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -1731,7 +1731,7 @@ config CIFS_POSIX CIFS POSIX ACL support. If unsure, say N. config CIFS_DEBUG2 - bool "Enable additional CIFS debugging routines + bool "Enable additional CIFS debugging routines" help Enabling this option adds a few more debugging routines to the cifs code which slightly increases the size of diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 6b5be6d59f0..eea8967e598 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -436,9 +436,9 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) a common dialect */ rc = -EOPNOTSUPP; goto neg_err_exit; - } else if((pSMBr->hdr.WordCount == 13) && - (pSMBr->DialectIndex == LANMAN_PROT)) { -#ifdef CONFIG_CIFS_WEAK_PW_HASH +#ifdef CONFIG_CIFS_WEAK_PW_HASH + } else if((pSMBr->hdr.WordCount == 13) + && (pSMBr->DialectIndex == LANMAN_PROT)) { struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; @@ -477,8 +477,9 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) cFYI(1,("LANMAN negotiated")); /* BB removeme BB */ #else /* weak security disabled */ - cERROR(1,("mount failed, cifs module not built with " - "CIFS_WEAK_PW_HASH support")); + } else if(pSMBr->hdr.WordCount == 13) + cERROR(1,("mount failed, cifs module not built " + "with CIFS_WEAK_PW_HASH support")); rc = -EOPNOTSUPP; #endif /* WEAK_PW_HASH */ goto neg_err_exit; -- cgit v1.2.3 From 273d81d6ada951ba99f10b755d6f849dbb352730 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Thu, 1 Jun 2006 19:41:23 +0000 Subject: [CIFS] Do not overwrite aops cifs should not be overwriting an element of the aops structure, since the structure is shared by all cifs inodes. Instead define a separate aops structure to suit each purpose. I also took the liberty of replacing a hard-coded 4096 with PAGE_CACHE_SIZE Signed-off-by: Dave Kleikamp Signed-off-by: Steven French Signed-off-by: Andrew Morton --- fs/cifs/cifsfs.h | 1 + fs/cifs/file.c | 16 ++++++++++++++++ fs/cifs/inode.c | 14 ++++++++------ fs/cifs/readdir.c | 16 ++++++++++------ 4 files changed, 35 insertions(+), 12 deletions(-) diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 2fc6d6527f1..3011df988bd 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -33,6 +33,7 @@ #endif extern struct address_space_operations cifs_addr_ops; +extern struct address_space_operations cifs_addr_ops_smallbuf; /* Functions related to super block operations */ extern struct super_operations cifs_super_ops; diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 379369ecda9..d62e29fe91f 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1959,3 +1959,19 @@ struct address_space_operations cifs_addr_ops = { /* .sync_page = cifs_sync_page, */ /* .direct_IO = */ }; + +/* + * cifs_readpages requires the server to support a buffer large enough to + * contain the header plus one complete page of data. Otherwise, we need + * to leave cifs_readpages out of the address space operations. + */ +struct address_space_operations cifs_addr_ops_smallbuf = { + .readpage = cifs_readpage, + .writepage = cifs_writepage, + .writepages = cifs_writepages, + .prepare_write = cifs_prepare_write, + .commit_write = cifs_commit_write, + .set_page_dirty = __set_page_dirty_nobuffers, + /* .sync_page = cifs_sync_page, */ + /* .direct_IO = */ +}; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index a609d266803..b88147c1dc2 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -180,11 +180,12 @@ int cifs_get_inode_info_unix(struct inode **pinode, else /* not direct, send byte range locks */ inode->i_fop = &cifs_file_ops; - inode->i_data.a_ops = &cifs_addr_ops; /* check if server can support readpages */ if(pTcon->ses->server->maxBuf < - 4096 + MAX_CIFS_HDR_SIZE) - inode->i_data.a_ops->readpages = NULL; + PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) + inode->i_data.a_ops = &cifs_addr_ops_smallbuf; + else + inode->i_data.a_ops = &cifs_addr_ops; } else if (S_ISDIR(inode->i_mode)) { cFYI(1, ("Directory inode")); inode->i_op = &cifs_dir_inode_ops; @@ -519,10 +520,11 @@ int cifs_get_inode_info(struct inode **pinode, else /* not direct, send byte range locks */ inode->i_fop = &cifs_file_ops; - inode->i_data.a_ops = &cifs_addr_ops; if(pTcon->ses->server->maxBuf < - 4096 + MAX_CIFS_HDR_SIZE) - inode->i_data.a_ops->readpages = NULL; + PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) + inode->i_data.a_ops = &cifs_addr_ops_smallbuf; + else + inode->i_data.a_ops = &cifs_addr_ops; } else if (S_ISDIR(inode->i_mode)) { cFYI(1, ("Directory inode")); inode->i_op = &cifs_dir_inode_ops; diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 53903a27f78..e3e762d774d 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -21,6 +21,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include +#include #include #include #include "cifspdu.h" @@ -216,11 +217,13 @@ static void fill_in_inode(struct inode *tmp_inode, else tmp_inode->i_fop = &cifs_file_ops; - tmp_inode->i_data.a_ops = &cifs_addr_ops; if((cifs_sb->tcon) && (cifs_sb->tcon->ses) && (cifs_sb->tcon->ses->server->maxBuf < - 4096 + MAX_CIFS_HDR_SIZE)) - tmp_inode->i_data.a_ops->readpages = NULL; + PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) + tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; + else + tmp_inode->i_data.a_ops = &cifs_addr_ops; + if(isNewInode) return; /* No sense invalidating pages for new inode since have not started caching readahead file @@ -339,11 +342,12 @@ static void unix_fill_in_inode(struct inode *tmp_inode, else tmp_inode->i_fop = &cifs_file_ops; - tmp_inode->i_data.a_ops = &cifs_addr_ops; if((cifs_sb->tcon) && (cifs_sb->tcon->ses) && (cifs_sb->tcon->ses->server->maxBuf < - 4096 + MAX_CIFS_HDR_SIZE)) - tmp_inode->i_data.a_ops->readpages = NULL; + PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) + tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; + else + tmp_inode->i_data.a_ops = &cifs_addr_ops; if(isNewInode) return; /* No sense invalidating pages for new inode since we -- cgit v1.2.3 From 7a0d22317614ee8e2598feafd4812e33be17f421 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 1 Jun 2006 19:44:37 +0000 Subject: [CIFS] Missing brace --- fs/cifs/cifssmb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index eea8967e598..b8c236be4d8 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -477,7 +477,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) cFYI(1,("LANMAN negotiated")); /* BB removeme BB */ #else /* weak security disabled */ - } else if(pSMBr->hdr.WordCount == 13) + } else if(pSMBr->hdr.WordCount == 13) { cERROR(1,("mount failed, cifs module not built " "with CIFS_WEAK_PW_HASH support")); rc = -EOPNOTSUPP; -- cgit v1.2.3 From 43411d699e8cf3293674da558d31a02e0012aa9d Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 2 Jun 2006 18:17:11 +0000 Subject: [CIFS] Fix mapping of old SMB return code Invalid Net Name so it is recognized on mount the old mapping of this was to ENODEV (instead of ENXIO) - but ENODEV is what mount returns when the cifs driver will not load so change this to map to ENXIO (which was what the equivalent condition returned for mapping errors from more modern servers) Signed-off-by: Steve French --- fs/cifs/netmisc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index a0bcdd6f4a6..b66eff5dc62 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -88,7 +88,7 @@ static const struct smb_to_posix_error mapping_table_ERRSRV[] = { {ERRbadtype, -EREMOTE}, {ERRaccess, -EACCES}, {ERRinvtid, -ENXIO}, - {ERRinvnetname, -ENODEV}, + {ERRinvnetname, -ENXIO}, {ERRinvdevice, -ENXIO}, {ERRqfull, -ENOSPC}, {ERRqtoobig, -ENOSPC}, -- cgit v1.2.3 From bdc4bf6e8ac8cc29c61c2f0dc61d9776ef9a8ed4 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 2 Jun 2006 22:57:13 +0000 Subject: [CIFS] Support for older servers which require plaintext passwords disabled by default, but can be enabled via proc for servers which require such support. Also includes support for setting security flags for cifs. See fs/cifs/README Signed-off-by: Steve French --- fs/cifs/cifs_debug.c | 56 ++++++++++++++++++++++++++++++++++++--------------- fs/cifs/cifsencrypt.c | 9 +++++++++ fs/cifs/cifssmb.c | 7 +++++++ 3 files changed, 56 insertions(+), 16 deletions(-) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 4e10e21c54f..7c0015a9695 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -445,8 +445,8 @@ static read_proc_t traceSMB_read; static write_proc_t traceSMB_write; static read_proc_t multiuser_mount_read; static write_proc_t multiuser_mount_write; -static read_proc_t extended_security_read; -static write_proc_t extended_security_write; +static read_proc_t security_flags_read; +static write_proc_t security_flags_write; /* static read_proc_t ntlmv2_enabled_read; static write_proc_t ntlmv2_enabled_write; static read_proc_t packet_signing_enabled_read; @@ -509,9 +509,9 @@ cifs_proc_init(void) pde = create_proc_read_entry("SecurityFlags", 0, proc_fs_cifs, - extended_security_read, NULL); + security_flags_read, NULL); if (pde) - pde->write_proc = extended_security_write; + pde->write_proc = security_flags_write; pde = create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs, @@ -832,7 +832,7 @@ multiuser_mount_write(struct file *file, const char __user *buffer, } static int -extended_security_read(char *page, char **start, off_t off, +security_flags_read(char *page, char **start, off_t off, int count, int *eof, void *data) { int len; @@ -853,26 +853,50 @@ extended_security_read(char *page, char **start, off_t off, return len; } static int -extended_security_write(struct file *file, const char __user *buffer, +security_flags_write(struct file *file, const char __user *buffer, unsigned long count, void *data) { + unsigned int flags; + char flags_string[12]; char c; - int rc; + cERROR(1,("size %ld",count)); /* BB removeme BB */ - if((count < 2) || (count > 8)) + + if((count < 1) || (count > 11)) return -EINVAL; - rc = get_user(c, buffer); + memset(flags_string, 0, 12); -/* BB fixme need to parse more characters in order to handle CIFSSEC flags */ + if(copy_from_user(flags_string, buffer, count)) + return -EFAULT; - if (rc) - return rc; - if (c == '0' || c == 'n' || c == 'N') - extended_security = CIFSSEC_DEF; /* default */ - else if (c == '1' || c == 'y' || c == 'Y') - extended_security = CIFSSEC_MAX; + if(count < 3) { + /* single char or single char followed by null */ + c = flags_string[0]; + if (c == '0' || c == 'n' || c == 'N') + extended_security = CIFSSEC_DEF; /* default */ + else if (c == '1' || c == 'y' || c == 'Y') + extended_security = CIFSSEC_MAX; + return count; + } + /* else we have a number */ + + flags = simple_strtoul(flags_string, NULL, 0); + + cERROR(1,("sec flags 0x%x", flags)); /* BB FIXME make cFYI */ + + if(flags <= 0) { + cERROR(1,("invalid security flags %s",flags_string)); + return -EINVAL; + } + if((flags & CIFSSEC_MASK) != CIFSSEC_MASK) { + cERROR(1,("attempt to set unsupported security flags 0x%d", + flags & ~CIFSSEC_MASK)); + return -EINVAL; + } + /* flags look ok - update the global security flags for cifs module */ + extended_security = flags; return count; } diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index e11d8c6bb22..3ae964bbfdc 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -271,9 +271,18 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) int i; char password_with_pad[CIFS_ENCPWD_SIZE]; + if(ses->server == NULL) + return; + memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE); + if((ses->server->secMode & SECMODE_PW_ENCRYPT) == 0) + if(extended_security & CIFSSEC_MAY_PLNTXT) { + memcpy(lnm_session_key, password_with_pad, CIFS_ENCPWD_SIZE); + return; + } + /* calculate old style session key */ /* calling toupper is less broken than repeatedly calling nls_toupper would be since that will never diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index b8c236be4d8..77cca380946 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -492,6 +492,13 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) server->secMode = pSMBr->SecurityMode; if((server->secMode & SECMODE_USER) == 0) cFYI(1,("share mode security")); + + if((server->secMode & SECMODE_PW_ENCRYPT) == 0) +#ifdef CONFIG_CIFS_WEAK_PW_HASH + if ((extended_security & CIFSSEC_MAY_PLNTXT) == 0) +#endif /* CIFS_WEAK_PW_HASH */ + cERROR(1,("Server requests plain text password" + " but client support disabled")); if(extended_security & CIFSSEC_MUST_NTLMV2) server->secType = NTLMv2; -- cgit v1.2.3 From 254e55ed03e2e8d23089b4a468eec2fd2e1ead9b Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 4 Jun 2006 05:53:15 +0000 Subject: CIFS] Support for older servers which require plaintext passwords - part 2 Signed-off-by: Steve French --- fs/cifs/README | 32 ++++-- fs/cifs/cifsglob.h | 17 ++-- fs/cifs/cifspdu.h | 4 + fs/cifs/cifssmb.c | 279 +++++++++++++++++++++++++++-------------------------- fs/cifs/sess.c | 3 +- 5 files changed, 184 insertions(+), 151 deletions(-) diff --git a/fs/cifs/README b/fs/cifs/README index 0355003f4f0..a68f8e3db2d 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -485,14 +485,34 @@ PacketSigningEnabled If set to one, cifs packet signing is enabled it. If set to two, cifs packet signing is required even if the server considers packet signing optional. (default 1) +SecurityFlags Flags which control security negotiation and + also packet signing. Authentication (may/must) + flags (e.g. for NTLM and/or NTLMv2) may be combined with + the signing flags. Specifying two different password + hashing mechanisms (as "must use") on the other hand + does not make much sense. Default flags are + 0x07007 + (NTLM, NTLMv2 and packet signing allowed). Maximum + allowable flags if you want to allow mounts to servers + using weaker password hashes is 0x37037 (lanman, + plaintext, ntlm, ntlmv2, signing allowed): + + may use packet signing 0x00001 + must use packet signing 0x01001 + may use NTLM (most common password hash) 0x00002 + must use NTLM 0x02002 + may use NTLMv2 0x00004 + must use NTLMv2 0x04004 + may use Kerberos security (not implemented yet) 0x00008 + must use Kerberos (not implemented yet) 0x08008 + may use lanman (weak) password hash 0x00010 + must use lanman password hash 0x10010 + may use plaintext passwords 0x00020 + must use plaintext passwords 0x20020 + (reserved for future packet encryption) 0x00040 + cifsFYI If set to one, additional debug information is logged to the system error log. (default 0) -ExtendedSecurity If set to one, SPNEGO session establishment - is allowed which enables more advanced - secure CIFS session establishment (default 0) -NTLMV2Enabled If set to one, more secure password hashes - are used when the server supports them and - when kerberos is not negotiated (default 0) traceSMB If set to one, debug information is logged to the system error log with the start of smb requests and responses (default 0) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 975e69a2e1c..87453a6bcaf 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -212,12 +212,12 @@ struct cifsTconInfo { struct list_head openFileList; struct semaphore tconSem; struct cifsSesInfo *ses; /* pointer to session associated with */ - char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource (in ASCII not UTF) */ + char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource in ASCII */ char *nativeFileSystem; __u16 tid; /* The 2 byte tree id */ __u16 Flags; /* optional support bits */ enum statusEnum tidStatus; - atomic_t useCount; /* how many mounts (explicit or implicit) to this share */ + atomic_t useCount; /* how many explicit/implicit mounts to share */ #ifdef CONFIG_CIFS_STATS atomic_t num_smbs_sent; atomic_t num_writes; @@ -257,7 +257,7 @@ struct cifsTconInfo { spinlock_t stat_lock; #endif /* CONFIG_CIFS_STATS */ FILE_SYSTEM_DEVICE_INFO fsDevInfo; - FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if file system name truncated */ + FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */ FILE_SYSTEM_UNIX_INFO fsUnixInfo; unsigned retry:1; unsigned nocase:1; @@ -308,7 +308,6 @@ struct cifsFileInfo { atomic_t wrtPending; /* handle in use - defer close */ struct semaphore fh_sem; /* prevents reopen race after dead ses*/ char * search_resume_name; /* BB removeme BB */ - unsigned int resume_name_length; /* BB removeme - field renamed and moved BB */ struct cifs_search_info srch_inf; }; @@ -523,16 +522,16 @@ GLOBAL_EXTERN rwlock_t GlobalSMBSeslock; /* protects list inserts on 3 above */ GLOBAL_EXTERN struct list_head GlobalOplock_Q; GLOBAL_EXTERN struct list_head GlobalDnotifyReqList; /* Outstanding dir notify requests */ -GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q; /* Dir notify response queue */ +GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q;/* DirNotify response queue */ /* * Global transaction id (XID) information */ GLOBAL_EXTERN unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */ -GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ +GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ GLOBAL_EXTERN unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ -GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above and list operations */ - /* on midQ entries */ +GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above & list operations */ + /* on midQ entries */ GLOBAL_EXTERN char Local_System_Name[15]; /* @@ -554,7 +553,7 @@ GLOBAL_EXTERN atomic_t smBufAllocCount; GLOBAL_EXTERN atomic_t midCount; /* Misc globals */ -GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions +GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions to be established on existing mount if we have the uid/password or Kerberos credential or equivalent for current user */ diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index 135941738d9..e714803a52d 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -426,6 +426,10 @@ typedef struct lanman_neg_rsp { unsigned char EncryptionKey[1]; } __attribute__((packed)) LANMAN_NEG_RSP; +#define READ_RAW_ENABLE 1 +#define WRITE_RAW_ENABLE 2 +#define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE) + typedef struct negotiate_rsp { struct smb_hdr hdr; /* wct = 17 */ __le16 DialectIndex; diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 77cca380946..0442c3b3679 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -411,8 +411,8 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) return rc; pSMB->hdr.Mid = GetNextMid(server); pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; -/* if (extended_security) - pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;*/ + if((extended_security & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) + pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; count = 0; for(i=0;iDialectIndex)); - /* Check wct = 1 error case */ - if((pSMBr->hdr.WordCount < 13) - || (pSMBr->DialectIndex == BAD_PROT)) { - /* core returns wct = 1, but we do not ask for - core - otherwise it just comes when dialect - index is -1 indicating we could not negotiate - a common dialect */ + if (rc != 0) + goto neg_err_exit; + + cFYI(1,("Dialect: %d", pSMBr->DialectIndex)); + /* Check wct = 1 error case */ + if((pSMBr->hdr.WordCount < 13) || (pSMBr->DialectIndex == BAD_PROT)) { + /* core returns wct = 1, but we do not ask for core - otherwise + small wct just comes when dialect index is -1 indicating we + could not negotiate a common dialect */ + rc = -EOPNOTSUPP; + goto neg_err_exit; +#ifdef CONFIG_CIFS_WEAK_PW_HASH + } else if((pSMBr->hdr.WordCount == 13) + && (pSMBr->DialectIndex == LANMAN_PROT)) { + struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; + + if((extended_security & CIFSSEC_MAY_LANMAN) || + (extended_security & CIFSSEC_MAY_PLNTXT)) + server->secType = LANMAN; + else { + cERROR(1, ("mount failed weak security disabled" + " in /proc/fs/cifs/SecurityFlags")); rc = -EOPNOTSUPP; goto neg_err_exit; -#ifdef CONFIG_CIFS_WEAK_PW_HASH - } else if((pSMBr->hdr.WordCount == 13) - && (pSMBr->DialectIndex == LANMAN_PROT)) { - struct lanman_neg_rsp * rsp = - (struct lanman_neg_rsp *)pSMBr; - - if((extended_security & CIFSSEC_MAY_LANMAN) || - (extended_security & CIFSSEC_MAY_PLNTXT)) - server->secType = LANMAN; - else { - cERROR(1, ("mount failed weak security disabled" - " in /proc/fs/cifs/SecurityFlags")); - rc = -EOPNOTSUPP; - goto neg_err_exit; - } - server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); - server->maxReq = le16_to_cpu(rsp->MaxMpxCount); - server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), + } + server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); + server->maxReq = le16_to_cpu(rsp->MaxMpxCount); + server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); + GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); + /* even though we do not use raw we might as well set this + accurately, in case we ever find a need for it */ + if((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { + server->maxRw = 0xFF00; + server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; + } else { + server->maxRw = 0;/* we do not need to use raw anyway */ + server->capabilities = CAP_MPX_MODE; + } + server->timeZone = le16_to_cpu(rsp->ServerTimeZone); - /* BB what do we do with raw mode? BB */ - server->timeZone = le16_to_cpu(rsp->ServerTimeZone); - /* Do we have to set signing flags? no signing - was available LANMAN - default should be ok */ - - /* BB FIXME set default dummy capabilities since - they are not returned by the server in this dialect */ - - /* get server time for time conversions and add - code to use it and timezone since this is not UTC */ + /* BB get server time for time conversions and add + code to use it and timezone since this is not UTC */ - if (rsp->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { - memcpy(server->cryptKey, rsp->EncryptionKey, - CIFS_CRYPTO_KEY_SIZE); - } else { - rc = -EIO; - goto neg_err_exit; - } + if (rsp->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { + memcpy(server->cryptKey, rsp->EncryptionKey, + CIFS_CRYPTO_KEY_SIZE); + } else if (server->secMode & SECMODE_PW_ENCRYPT) { + rc = -EIO; /* need cryptkey unless plain text */ + goto neg_err_exit; + } - cFYI(1,("LANMAN negotiated")); /* BB removeme BB */ + cFYI(1,("LANMAN negotiated")); + /* we will not end up setting signing flags - as no signing + was in LANMAN and server did not return the flags on */ + goto signing_check; #else /* weak security disabled */ - } else if(pSMBr->hdr.WordCount == 13) { - cERROR(1,("mount failed, cifs module not built " - "with CIFS_WEAK_PW_HASH support")); + } else if(pSMBr->hdr.WordCount == 13) { + cERROR(1,("mount failed, cifs module not built " + "with CIFS_WEAK_PW_HASH support")); rc = -EOPNOTSUPP; #endif /* WEAK_PW_HASH */ - goto neg_err_exit; - } else if(pSMBr->hdr.WordCount != 17) { - /* unknown wct */ - rc = -EOPNOTSUPP; - goto neg_err_exit; - } - - server->secMode = pSMBr->SecurityMode; - if((server->secMode & SECMODE_USER) == 0) - cFYI(1,("share mode security")); + goto neg_err_exit; + } else if(pSMBr->hdr.WordCount != 17) { + /* unknown wct */ + rc = -EOPNOTSUPP; + goto neg_err_exit; + } + /* else wct == 17 NTLM */ + server->secMode = pSMBr->SecurityMode; + if((server->secMode & SECMODE_USER) == 0) + cFYI(1,("share mode security")); - if((server->secMode & SECMODE_PW_ENCRYPT) == 0) + if((server->secMode & SECMODE_PW_ENCRYPT) == 0) #ifdef CONFIG_CIFS_WEAK_PW_HASH - if ((extended_security & CIFSSEC_MAY_PLNTXT) == 0) + if ((extended_security & CIFSSEC_MAY_PLNTXT) == 0) #endif /* CIFS_WEAK_PW_HASH */ - cERROR(1,("Server requests plain text password" - " but client support disabled")); + cERROR(1,("Server requests plain text password" + " but client support disabled")); - if(extended_security & CIFSSEC_MUST_NTLMV2) - server->secType = NTLMv2; - else - server->secType = NTLM; - /* else krb5 ... */ - - /* one byte - no need to convert this or EncryptionKeyLen - from little endian */ - server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); - /* probably no need to store and check maxvcs */ - server->maxBuf = - min(le32_to_cpu(pSMBr->MaxBufferSize), + if(extended_security & CIFSSEC_MUST_NTLMV2) + server->secType = NTLMv2; + else + server->secType = NTLM; + /* else krb5 ... */ + + /* one byte, so no need to convert this or EncryptionKeyLen from + little endian */ + server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); + /* probably no need to store and check maxvcs */ + server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); - server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); - cFYI(0, ("Max buf = %d", ses->server->maxBuf)); - GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); - server->capabilities = le32_to_cpu(pSMBr->Capabilities); - server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone); - /* BB with UTC do we ever need to be using srvr timezone? */ - if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { - memcpy(server->cryptKey, pSMBr->u.EncryptionKey, - CIFS_CRYPTO_KEY_SIZE); - } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) - && (pSMBr->EncryptionKeyLength == 0)) { - /* decode security blob */ - } else - rc = -EIO; + server->maxRw = le32_to_cpu(pSMBr->MaxRawSize); + cFYI(0, ("Max buf = %d", ses->server->maxBuf)); + GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); + server->capabilities = le32_to_cpu(pSMBr->Capabilities); + server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone); + if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { + memcpy(server->cryptKey, pSMBr->u.EncryptionKey, + CIFS_CRYPTO_KEY_SIZE); + } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) + && (pSMBr->EncryptionKeyLength == 0)) { + /* decode security blob */ + } else if (server->secMode & SECMODE_PW_ENCRYPT) { + rc = -EIO; /* no crypt key only if plain text pwd */ + goto neg_err_exit; + } - /* BB might be helpful to save off the domain of server here */ + /* BB might be helpful to save off the domain of server here */ - if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && - (server->capabilities & CAP_EXTENDED_SECURITY)) { - count = pSMBr->ByteCount; - if (count < 16) - rc = -EIO; - else if (count == 16) { - server->secType = RawNTLMSSP; - if (server->socketUseCount.counter > 1) { - if (memcmp - (server->server_GUID, - pSMBr->u.extended_response. - GUID, 16) != 0) { - cFYI(1, ("server UID changed")); - memcpy(server-> - server_GUID, - pSMBr->u. - extended_response. - GUID, 16); - } - } else + if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && + (server->capabilities & CAP_EXTENDED_SECURITY)) { + count = pSMBr->ByteCount; + if (count < 16) + rc = -EIO; + else if (count == 16) { + server->secType = RawNTLMSSP; + if (server->socketUseCount.counter > 1) { + if (memcmp(server->server_GUID, + pSMBr->u.extended_response. + GUID, 16) != 0) { + cFYI(1, ("server UID changed")); memcpy(server->server_GUID, - pSMBr->u.extended_response. - GUID, 16); - } else { - rc = decode_negTokenInit(pSMBr->u. - extended_response. - SecurityBlob, - count - 16, - &server->secType); - if(rc == 1) { - /* BB Need to fill struct for sessetup here */ - rc = -EOPNOTSUPP; - } else { - rc = -EINVAL; + pSMBr->u.extended_response.GUID, + 16); } + } else + memcpy(server->server_GUID, + pSMBr->u.extended_response.GUID, 16); + } else { + rc = decode_negTokenInit(pSMBr->u.extended_response. + SecurityBlob, + count - 16, + &server->secType); + if(rc == 1) { + /* BB Need to fill struct for sessetup here */ + rc = -EOPNOTSUPP; + } else { + rc = -EINVAL; } - } else - server->capabilities &= ~CAP_EXTENDED_SECURITY; - if(sign_CIFS_PDUs == FALSE) { - if(server->secMode & SECMODE_SIGN_REQUIRED) - cERROR(1, - ("Server requires /proc/fs/cifs/PacketSigningEnabled")); - server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); - } else if(sign_CIFS_PDUs == 1) { - if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) - server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); } - + } else + server->capabilities &= ~CAP_EXTENDED_SECURITY; + +signing_check: + if(sign_CIFS_PDUs == FALSE) { + if(server->secMode & SECMODE_SIGN_REQUIRED) + cERROR(1,("Server requires " + "/proc/fs/cifs/PacketSigningEnabled to be on")); + server->secMode &= + ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); + } else if(sign_CIFS_PDUs == 1) { + if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) + server->secMode &= + ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); + } else if(sign_CIFS_PDUs == 2) { + if((server->secMode & + (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { + cERROR(1,("signing required but server lacks support")); + } } neg_err_exit: cifs_buf_release(pSMB); + + cFYI(1,("negprot rc %d",rc)); return rc; } diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index a52aacb3fef..76a09f5f804 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -323,7 +323,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, enum securityEnum type; __u16 action; int bytes_remaining; - + + cFYI(1,("new sess setup")); if(ses == NULL) return -EINVAL; -- cgit v1.2.3 From 9312f6754d4b2d3ce27c21b16fb92923ce92a411 Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 4 Jun 2006 22:21:07 +0000 Subject: [CIFS] Fix mask so can set new cifs security flags properly Signed-off-by: Steve French --- fs/cifs/cifs_debug.c | 6 ++---- fs/cifs/cifssmb.c | 2 +- fs/cifs/sess.c | 5 +++-- 3 files changed, 6 insertions(+), 7 deletions(-) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 7c0015a9695..2f55edf2eee 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -860,8 +860,6 @@ security_flags_write(struct file *file, const char __user *buffer, char flags_string[12]; char c; - cERROR(1,("size %ld",count)); /* BB removeme BB */ - if((count < 1) || (count > 11)) return -EINVAL; @@ -883,14 +881,14 @@ security_flags_write(struct file *file, const char __user *buffer, flags = simple_strtoul(flags_string, NULL, 0); - cERROR(1,("sec flags 0x%x", flags)); /* BB FIXME make cFYI */ + cFYI(1,("sec flags 0x%x", flags)); if(flags <= 0) { cERROR(1,("invalid security flags %s",flags_string)); return -EINVAL; } - if((flags & CIFSSEC_MASK) != CIFSSEC_MASK) { + if(flags & ~CIFSSEC_MASK) { cERROR(1,("attempt to set unsupported security flags 0x%d", flags & ~CIFSSEC_MASK)); return -EINVAL; diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 0442c3b3679..acae58313b0 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -504,7 +504,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) #endif /* CIFS_WEAK_PW_HASH */ cERROR(1,("Server requests plain text password" " but client support disabled")); - + if(extended_security & CIFSSEC_MUST_NTLMV2) server->secType = NTLMv2; else diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 76a09f5f804..1fe9461c6dc 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -339,9 +339,10 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, return -EOPNOTSUPP; #endif wct = 10; /* lanman 2 style sessionsetup */ - } else if((type == NTLM) || (type == NTLMv2)) /* NTLMv2 may retry NTLM */ + } else if((type == NTLM) || (type == NTLMv2)) { + /* For NTLMv2 failures eventually may need to retry NTLM */ wct = 13; /* old style NTLM sessionsetup */ - else /* same size for negotiate or auth, NTLMSSP or extended security */ + } else /* same size for negotiate or auth, NTLMSSP or extended security */ wct = 12; rc = small_smb_init_no_tc(SMB_COM_SESSION_SETUP_ANDX, wct, ses, -- cgit v1.2.3 From 0f5e560e4523e15f33922de5becd024ccaaff76c Mon Sep 17 00:00:00 2001 From: Andreas Mohr Date: Mon, 5 Jun 2006 00:18:00 -0400 Subject: Input: constify drivers/char/keyboard.c Signed-off-by: Andreas Mohr Signed-off-by: Andrew Morton Signed-off-by: Dmitry Torokhov --- drivers/char/keyboard.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c index 5755b7e5f18..24f2656000e 100644 --- a/drivers/char/keyboard.c +++ b/drivers/char/keyboard.c @@ -672,7 +672,7 @@ static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag, struc */ static void k_dead(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) { - static unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; + static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; value = ret_diacr[value]; k_deadunicode(vc, value, up_flag, regs); } @@ -709,8 +709,8 @@ static void k_cur(struct vc_data *vc, unsigned char value, char up_flag, struct static void k_pad(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) { - static const char *pad_chars = "0123456789+-*/\015,.?()#"; - static const char *app_map = "pqrstuvwxylSRQMnnmPQS"; + static const char pad_chars[] = "0123456789+-*/\015,.?()#"; + static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; if (up_flag) return; /* no action, if this is a key release */ @@ -1035,7 +1035,7 @@ static void kbd_refresh_leds(struct input_handle *handle) #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) -static unsigned short x86_keycodes[256] = +static const unsigned short x86_keycodes[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, -- cgit v1.2.3 From fe65b97a5885a84baa103d7213754ff29e8f872f Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Mon, 5 Jun 2006 00:18:21 -0400 Subject: Input: iforce - use ENOSPC instead of ENOMEM Use -ENOSPC instead of -ENOMEM when the iforce device doesn't have enough free memory for the new effect. All other drivers are using -ENOSPC, so this makes the behaviour coherent. Signed-off-by: Anssi Hannula Signed-off-by: Andrew Morton Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/iforce/iforce-ff.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/input/joystick/iforce/iforce-ff.c b/drivers/input/joystick/iforce/iforce-ff.c index 2b8e8456c9f..50c90765aee 100644 --- a/drivers/input/joystick/iforce/iforce-ff.c +++ b/drivers/input/joystick/iforce/iforce-ff.c @@ -47,7 +47,7 @@ static int make_magnitude_modifier(struct iforce* iforce, iforce->device_memory.start, iforce->device_memory.end, 2L, NULL, NULL)) { mutex_unlock(&iforce->mem_mutex); - return -ENOMEM; + return -ENOSPC; } mutex_unlock(&iforce->mem_mutex); } @@ -80,7 +80,7 @@ static int make_period_modifier(struct iforce* iforce, iforce->device_memory.start, iforce->device_memory.end, 2L, NULL, NULL)) { mutex_unlock(&iforce->mem_mutex); - return -ENOMEM; + return -ENOSPC; } mutex_unlock(&iforce->mem_mutex); } @@ -120,7 +120,7 @@ static int make_envelope_modifier(struct iforce* iforce, iforce->device_memory.start, iforce->device_memory.end, 2L, NULL, NULL)) { mutex_unlock(&iforce->mem_mutex); - return -ENOMEM; + return -ENOSPC; } mutex_unlock(&iforce->mem_mutex); } @@ -157,7 +157,7 @@ static int make_condition_modifier(struct iforce* iforce, iforce->device_memory.start, iforce->device_memory.end, 2L, NULL, NULL)) { mutex_unlock(&iforce->mem_mutex); - return -ENOMEM; + return -ENOSPC; } mutex_unlock(&iforce->mem_mutex); } -- cgit v1.2.3 From 3cbd5b32cb625f5c0f1b1476d154fac873dd49ce Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Mon, 5 Jun 2006 00:18:43 -0400 Subject: Input: fix accuracy of fixp-arith.h Add the value of cos(90) = 0 to the table. This also moves the results so that sin(x) == sin(180-x) is true as expected. Signed-off-by: Anssi Hannula Signed-off-by: Andrew Morton Signed-off-by: Dmitry Torokhov --- drivers/usb/input/fixp-arith.h | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/usb/input/fixp-arith.h b/drivers/usb/input/fixp-arith.h index b44d398de07..ed3d2da0c48 100644 --- a/drivers/usb/input/fixp-arith.h +++ b/drivers/usb/input/fixp-arith.h @@ -2,8 +2,6 @@ #define _FIXP_ARITH_H /* - * $$ - * * Simplistic fixed-point arithmetics. * Hmm, I'm probably duplicating some code :( * @@ -31,20 +29,20 @@ #include -// The type representing fixed-point values +/* The type representing fixed-point values */ typedef s16 fixp_t; #define FRAC_N 8 #define FRAC_MASK ((1<>= 1; -- cgit v1.2.3 From f64b23ae4aef9f69d71ea41529a188acd5ab4930 Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 5 Jun 2006 05:27:37 +0000 Subject: [CIFS] NTLMv2 support part 2 Still need to fill in response structure and check that hash works Signed-off-by: Steve French --- fs/cifs/cifsencrypt.c | 2 ++ fs/cifs/cifspdu.h | 27 ++++++++++++++++++++++++--- fs/cifs/sess.c | 13 +++++++++---- 3 files changed, 35 insertions(+), 7 deletions(-) diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 3ae964bbfdc..24ab770f60d 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -306,6 +306,8 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) void CalcNTLMv2_response(const struct cifsSesInfo * ses,char * v2_session_response) { + /* BB FIXME - update struct ntlmv2_response and change calling convention + of this function */ struct HMACMD5Context context; memcpy(v2_session_response + 8, ses->server->cryptKey,8); /* gen_blob(v2_session_response + 16); */ diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index e714803a52d..503b7e32ede 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -117,7 +117,6 @@ * Size of the session key (crypto key encrypted with the password */ #define CIFS_SESS_KEY_SIZE (24) -#define V2_SESS_KEY_SIZE (86) /* * Maximum user name length @@ -539,7 +538,7 @@ typedef union smb_com_session_setup_andx { /* unsigned char * NativeOS; */ /* unsigned char * NativeLanMan; */ /* unsigned char * PrimaryDomain; */ - } __attribute__((packed)) resp; /* NTLM response format (with or without extended security */ + } __attribute__((packed)) resp; /* NTLM response with or without extended sec*/ struct { /* request format */ struct smb_hdr hdr; /* wct = 10 */ @@ -573,6 +572,26 @@ typedef union smb_com_session_setup_andx { } __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */ } __attribute__((packed)) SESSION_SETUP_ANDX; +/* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */ + +struct ntlmssp2_name { + __le16 type; + __le16 length; +/* char name[length]; */ +} __attribute__((packed)); + +struct ntlmv2_resp { + char ntlmv2_hash[CIFS_ENCPWD_SIZE]; + __le32 blob_sign; + __u32 reserved; + __le64 time; + __u64 client_chal; /* random */ + __u32 reserved2; + struct ntlmssp2_name names[1]; + /* array of name entries could follow ending in minimum 4 byte struct */ +} __attribute__((packed)); + + #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux" /* Capabilities bits (for NTLM SessSetup request) */ @@ -603,7 +622,9 @@ typedef struct smb_com_tconx_req { } __attribute__((packed)) TCONX_REQ; typedef struct smb_com_tconx_rsp { - struct smb_hdr hdr; /* wct = 3 *//* note that Win2000 has sent wct=7 in some cases on responses. Four unspecified words followed OptionalSupport */ + struct smb_hdr hdr; /* wct = 3 note that Win2000 has sent wct = 7 + in some cases on responses. Four unspecified + words followed OptionalSupport */ __u8 AndXCommand; __u8 AndXReserved; __le16 AndXOffset; diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 1fe9461c6dc..9ce628df29b 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -411,7 +411,11 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, else ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); } else if (type == NTLMv2) { - char * v2_sess_key = kmalloc(V2_SESS_KEY_SIZE, GFP_KERNEL); + char * v2_sess_key = kmalloc(sizeof(struct ntlmv2_resp), + GFP_KERNEL); + + /* BB FIXME change all users of v2_sess_key to + struct ntlmv2_resp */ if(v2_sess_key == NULL) { cifs_small_buf_release(smb_buf); @@ -425,7 +429,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, /* cpu_to_le16(LM2_SESS_KEY_SIZE); */ pSMB->req_no_secext.CaseSensitivePasswordLength = - cpu_to_le16(V2_SESS_KEY_SIZE); + cpu_to_le16(sizeof(struct ntlmv2_resp)); /* calculate session key */ CalcNTLMv2_response(ses, v2_sess_key); @@ -438,8 +442,9 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, /* memcpy(bcc_ptr, (char *)ntlm_session_key,LM2_SESS_KEY_SIZE); bcc_ptr += LM2_SESS_KEY_SIZE; */ - memcpy(bcc_ptr, (char *)v2_sess_key, V2_SESS_KEY_SIZE); - bcc_ptr += V2_SESS_KEY_SIZE; + memcpy(bcc_ptr, (char *)v2_sess_key, sizeof(struct ntlmv2_resp)); + bcc_ptr += sizeof(struct ntlmv2_resp); + kfree(v2_sess_key); if(ses->capabilities & CAP_UNICODE) unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); else -- cgit v1.2.3 From 6d027cfdb19c26df3151a519ed55acfe2c4cb7c3 Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 5 Jun 2006 16:26:05 +0000 Subject: [CIFS] NTLMv2 support part 3 Response struct filled in exacty for 16 byte hash which we need to check more to make sure it works. Signed-off-by: Steve French --- fs/cifs/cifsencrypt.c | 17 +++++++++++++++-- fs/cifs/cifspdu.h | 2 +- fs/cifs/cifsproto.h | 1 + fs/cifs/sess.c | 6 +++--- 4 files changed, 20 insertions(+), 6 deletions(-) diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 24ab770f60d..09f94617e53 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -27,6 +27,7 @@ #include "cifs_unicode.h" #include "cifsproto.h" #include +#include /* Calculate and return the CIFS signature based on the mac key and the smb pdu */ /* the 16 byte signature must be allocated by the caller */ @@ -304,10 +305,22 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) } #endif /* CIFS_WEAK_PW_HASH */ +void setup_ntlmv2_rsp(const struct cifsSesInfo * ses, char * resp_buf) +{ + struct ntlmv2_resp * buf = (struct ntlmv2_resp *)resp_buf; + + buf->blob_signature = cpu_to_le32(0x00000101); + buf->reserved = 0; + buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME)); + get_random_bytes(&buf->client_chal, sizeof(buf->client_chal)); + buf->reserved2 = 0; + buf->names[0].type = 0; + buf->names[0].length = 0; + /* calculate buf->ntlmv2_hash */ +} + void CalcNTLMv2_response(const struct cifsSesInfo * ses,char * v2_session_response) { - /* BB FIXME - update struct ntlmv2_response and change calling convention - of this function */ struct HMACMD5Context context; memcpy(v2_session_response + 8, ses->server->cryptKey,8); /* gen_blob(v2_session_response + 16); */ diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index 503b7e32ede..5250b93d309 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -582,7 +582,7 @@ struct ntlmssp2_name { struct ntlmv2_resp { char ntlmv2_hash[CIFS_ENCPWD_SIZE]; - __le32 blob_sign; + __le32 blob_signature; __u32 reserved; __le64 time; __u64 client_chal; /* random */ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 59b037f1451..824afb937a6 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -287,6 +287,7 @@ extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key, extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass); extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, struct nls_table *); extern void CalcNTLMv2_response(const struct cifsSesInfo *,char * ); +extern void setup_ntlmv2_rsp(const struct cifsSesInfo *, char *); #ifdef CONFIG_CIFS_WEAK_PW_HASH extern void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key); #endif /* CIFS_WEAK_PW_HASH */ diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 9ce628df29b..c6fd01f55e9 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -411,8 +411,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, else ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); } else if (type == NTLMv2) { - char * v2_sess_key = kmalloc(sizeof(struct ntlmv2_resp), - GFP_KERNEL); + char * v2_sess_key = + kmalloc(sizeof(struct ntlmv2_resp), GFP_KERNEL); /* BB FIXME change all users of v2_sess_key to struct ntlmv2_resp */ @@ -432,7 +432,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, cpu_to_le16(sizeof(struct ntlmv2_resp)); /* calculate session key */ - CalcNTLMv2_response(ses, v2_sess_key); + setup_ntlmv2_rsp(ses, v2_sess_key); if(first_time) /* should this be moved into common code with similar ntlmv2 path? */ /* cifs_calculate_ntlmv2_mac_key(ses->server->mac_signing_key, -- cgit v1.2.3 From a8ee03441f66e0674e641c0cbe1a9534cdee968f Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 5 Jun 2006 23:34:19 +0000 Subject: [CIFS] NTLMv2 support part 4 Signed-off-by: Steve French --- fs/cifs/cifs_debug.c | 2 +- fs/cifs/cifsencrypt.c | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 2f55edf2eee..96abeb73897 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -889,7 +889,7 @@ security_flags_write(struct file *file, const char __user *buffer, } if(flags & ~CIFSSEC_MASK) { - cERROR(1,("attempt to set unsupported security flags 0x%d", + cERROR(1,("attempt to set unsupported security flags 0x%x", flags & ~CIFSSEC_MASK)); return -EINVAL; } diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 09f94617e53..8bcb1da3270 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -305,8 +305,44 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) } #endif /* CIFS_WEAK_PW_HASH */ +static int calc_ntlmv2_hash(const struct cifsSesInfo *ses, + char * ntv2_hash) +{ + int rc = 0; + int len; + char nt_hash[16]; + struct HMACMD5Context * pctxt; + + pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL); + + if(pctxt == NULL) + return -ENOMEM; + + /* calculate md4 hash of password */ + E_md4hash(ses->password, nt_hash); + + /* convERT Domainname to unicode and uppercase */ + hmac_md5_init_limK_to_64(nt_hash, 16, pctxt); + + /* convert ses->userName to unicode and uppercase */ + + /* len = ... */ /* BB FIXME BB */ + + /* hmac_md5_update(user, len, pctxt); */ + + /* convert ses->domainName to unicode and uppercase */ + + /* len = ... */ /* BB FIXME BB */ + /* hmac_md5_update(domain, len, pctxt); */ + + hmac_md5_final(ntv2_hash, pctxt); + + return rc; +} + void setup_ntlmv2_rsp(const struct cifsSesInfo * ses, char * resp_buf) { + int rc; struct ntlmv2_resp * buf = (struct ntlmv2_resp *)resp_buf; buf->blob_signature = cpu_to_le32(0x00000101); @@ -316,7 +352,11 @@ void setup_ntlmv2_rsp(const struct cifsSesInfo * ses, char * resp_buf) buf->reserved2 = 0; buf->names[0].type = 0; buf->names[0].length = 0; + /* calculate buf->ntlmv2_hash */ + rc = calc_ntlmv2_hash(ses,buf->ntlmv2_hash); + if(rc) + cERROR(1,("could not get v2 hash rc %d",rc)); } void CalcNTLMv2_response(const struct cifsSesInfo * ses,char * v2_session_response) -- cgit v1.2.3 From 5bafd76593f060540acbea3b61e3087e009aa269 Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 7 Jun 2006 00:18:43 +0000 Subject: [CIFS] Add support for readdir to legacy servers Fixes oops to OS/2 on ls and removes redundant NTCreateX calls to servers which do not support NT SMBs. Key operations to OS/2 work. Signed-off-by: Steve French --- fs/cifs/CHANGES | 4 ++ fs/cifs/cifspdu.h | 29 +++++++++-- fs/cifs/dir.c | 11 +++- fs/cifs/file.c | 9 +++- fs/cifs/readdir.c | 150 +++++++++++++++++++++++++++++++++++++++--------------- 5 files changed, 153 insertions(+), 50 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index b878dfcff0f..7e0058bc3dd 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -2,6 +2,10 @@ Version 1.44 ------------ Rewritten sessionsetup support, including support for legacy SMB session setup needed for OS/2 and older servers such as Windows 95 and 98. +Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst +so we can do search (ls etc.) to OS/2. Do not send NTCreateX +or recent levels of FindFirst unless server says it supports NT SMBs +(instead use legacy equivalents from LANMAN dialect). Version 1.43 ------------ diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index 5250b93d309..86239023545 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -1374,6 +1374,9 @@ struct smb_t2_rsp { #define SMB_FILE_MAXIMUM_INFO 0x40d /* Find File infolevels */ +#define SMB_FIND_FILE_INFO_STANDARD 0x001 +#define SMB_FIND_FILE_QUERY_EA_SIZE 0x002 +#define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003 #define SMB_FIND_FILE_DIRECTORY_INFO 0x101 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102 #define SMB_FIND_FILE_NAMES_INFO 0x103 @@ -1998,7 +2001,8 @@ typedef struct { struct file_allocation_info { __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */ -} __attribute__((packed)); /* size used on disk, level 0x103 for set, 0x105 for query */ +} __attribute__((packed)); /* size used on disk, for level 0x103 for set, + 0x105 for query */ struct file_end_of_file_info { __le64 FileSize; /* offset to end of file */ @@ -2105,7 +2109,7 @@ typedef struct { __le32 ExtFileAttributes; __le32 FileNameLength; char FileName[1]; -} __attribute__((packed)) FILE_DIRECTORY_INFO; /* level 0x101 FF response data area */ +} __attribute__((packed)) FILE_DIRECTORY_INFO; /* level 0x101 FF resp data */ typedef struct { __le32 NextEntryOffset; @@ -2120,7 +2124,7 @@ typedef struct { __le32 FileNameLength; __le32 EaSize; /* length of the xattrs */ char FileName[1]; -} __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 FF response data area */ +} __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */ typedef struct { __le32 NextEntryOffset; @@ -2137,7 +2141,7 @@ typedef struct { __le32 Reserved; __u64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/ char FileName[1]; -} __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF response data area */ +} __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */ typedef struct { __le32 NextEntryOffset; @@ -2155,7 +2159,22 @@ typedef struct { __u8 Reserved; __u8 ShortName[12]; char FileName[1]; -} __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FF response data area */ +} __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */ + +typedef struct { + __u32 ResumeKey; + __le16 CreationDate; /* SMB Date */ + __le16 CreationTime; /* SMB Time */ + __le16 LastAccessDate; + __le16 LastAccessTime; + __le16 LastWriteDate; + __le16 LastWriteTime; + __le32 DataSize; /* File Size (EOF) */ + __le32 AllocationSize; + __le16 Attributes; /* verify not u32 */ + __u8 FileNameLength; + char FileName[1]; +} __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */ struct win_dev { diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index e6ed64e94b7..ba4cbe9b068 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -178,11 +178,14 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, FreeXid(xid); return -ENOMEM; } - - rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, + if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS) + rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess, CREATE_NOT_DIR, &fileHandle, &oplock, buf, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + else + rc = -EIO; /* no NT SMB support fall into legacy open below */ + if(rc == -EIO) { /* old server, retry the open legacy style */ rc = SMBLegacyOpen(xid, pTcon, full_path, disposition, @@ -369,6 +372,10 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + /* BB FIXME - add handling for backlevel servers + which need legacy open and check for all + calls to SMBOpen for fallback to + SMBLeagcyOpen */ if(!rc) { /* BB Do not bother to decode buf since no local inode yet to put timestamps in, diff --git a/fs/cifs/file.c b/fs/cifs/file.c index d62e29fe91f..fafdcdffba6 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -260,10 +260,15 @@ int cifs_open(struct inode *inode, struct file *file) rc = -ENOMEM; goto out; } - rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess, - CREATE_NOT_DIR, &netfid, &oplock, buf, + + if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS) + rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, + desiredAccess, CREATE_NOT_DIR, &netfid, &oplock, buf, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + else + rc = -EIO; /* no NT SMB support fall into legacy open below */ + if (rc == -EIO) { /* Old server, try legacy style OpenX */ rc = SMBLegacyOpen(xid, pTcon, full_path, disposition, diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index e3e762d774d..03bbcb37791 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -109,32 +109,52 @@ static int construct_dentry(struct qstr *qstring, struct file *file, return rc; } -static void fill_in_inode(struct inode *tmp_inode, - FILE_DIRECTORY_INFO *pfindData, int *pobject_type, int isNewInode) +static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, + char * buf, int *pobject_type, int isNewInode) { loff_t local_size; struct timespec local_mtime; struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode); struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb); - __u32 attr = le32_to_cpu(pfindData->ExtFileAttributes); - __u64 allocation_size = le64_to_cpu(pfindData->AllocationSize); - __u64 end_of_file = le64_to_cpu(pfindData->EndOfFile); - - cifsInfo->cifsAttrs = attr; - cifsInfo->time = jiffies; + __u32 attr; + __u64 allocation_size; + __u64 end_of_file; /* save mtime and size */ local_mtime = tmp_inode->i_mtime; local_size = tmp_inode->i_size; + if(new_buf_type) { + FILE_DIRECTORY_INFO *pfindData = (FILE_DIRECTORY_INFO *)buf; + + attr = le32_to_cpu(pfindData->ExtFileAttributes); + allocation_size = le64_to_cpu(pfindData->AllocationSize); + end_of_file = le64_to_cpu(pfindData->EndOfFile); + tmp_inode->i_atime = + cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastAccessTime)); + tmp_inode->i_mtime = + cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime)); + tmp_inode->i_ctime = + cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); + } else { /* legacy, OS2 and DOS style */ + FIND_FILE_STANDARD_INFO * pfindData = + (FIND_FILE_STANDARD_INFO *)buf; + + attr = le16_to_cpu(pfindData->Attributes); + allocation_size = le32_to_cpu(pfindData->AllocationSize); + end_of_file = le32_to_cpu(pfindData->DataSize); + tmp_inode->i_atime = CURRENT_TIME; + /* tmp_inode->i_mtime = BB FIXME - add dos time handling + tmp_inode->i_ctime = 0; BB FIXME */ + + } + /* Linux can not store file creation time unfortunately so ignore it */ - tmp_inode->i_atime = - cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastAccessTime)); - tmp_inode->i_mtime = - cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime)); - tmp_inode->i_ctime = - cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); + + cifsInfo->cifsAttrs = attr; + cifsInfo->time = jiffies; + /* treat dos attribute of read-only as read-only mode bit e.g. 555? */ /* 2767 perms - indicate mandatory locking */ /* BB fill in uid and gid here? with help from winbind? @@ -420,7 +440,10 @@ static int initiate_cifs_search(const int xid, struct file *file) ffirst_retry: /* test for Unix extensions */ if (pTcon->ses->capabilities & CAP_UNIX) { - cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX; + cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX; + } else if ((pTcon->ses->capabilities & + (CAP_NT_SMBS | CAP_NT_FIND)) == 0) { + cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD; } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { cifsFile->srch_inf.info_level = SMB_FIND_FILE_ID_FULL_DIR_INFO; } else /* not srvinos - BB fixme add check for backlevel? */ { @@ -456,12 +479,19 @@ static int cifs_unicode_bytelen(char *str) return len << 1; } -static char *nxt_dir_entry(char *old_entry, char *end_of_smb) +static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) { char * new_entry; FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry; - new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset); + if(level == SMB_FIND_FILE_INFO_STANDARD) { + FIND_FILE_STANDARD_INFO * pfData; + pfData = (FIND_FILE_STANDARD_INFO *)pDirInfo; + + new_entry = old_entry + sizeof(FIND_FILE_STANDARD_INFO) + + pfData->FileNameLength; + } else + new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset); cFYI(1,("new entry %p old entry %p",new_entry,old_entry)); /* validate that new_entry is not past end of SMB */ if(new_entry >= end_of_smb) { @@ -469,7 +499,10 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb) ("search entry %p began after end of SMB %p old entry %p", new_entry, end_of_smb, old_entry)); return NULL; - } else if (new_entry + sizeof(FILE_DIRECTORY_INFO) > end_of_smb) { + } else if(((level == SMB_FIND_FILE_INFO_STANDARD) && + (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb)) || + ((level != SMB_FIND_FILE_INFO_STANDARD) && + (new_entry + sizeof(FILE_DIRECTORY_INFO) > end_of_smb))) { cERROR(1,("search entry %p extends after end of SMB %p", new_entry, end_of_smb)); return NULL; @@ -487,7 +520,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) char * filename = NULL; int len = 0; - if(cfile->srch_inf.info_level == 0x202) { + if(cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if(cfile->srch_inf.unicode) { @@ -496,26 +529,34 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, 5); } - } else if(cfile->srch_inf.info_level == 0x101) { + } else if(cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) { FILE_DIRECTORY_INFO * pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(cfile->srch_inf.info_level == 0x102) { + } else if(cfile->srch_inf.info_level == + SMB_FIND_FILE_FULL_DIRECTORY_INFO) { FILE_FULL_DIRECTORY_INFO * pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(cfile->srch_inf.info_level == 0x105) { + } else if(cfile->srch_inf.info_level == + SMB_FIND_FILE_ID_FULL_DIR_INFO) { SEARCH_ID_FULL_DIR_INFO * pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(cfile->srch_inf.info_level == 0x104) { + } else if(cfile->srch_inf.info_level == + SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { FILE_BOTH_DIRECTORY_INFO * pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); + } else if(cfile->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) { + FIND_FILE_STANDARD_INFO * pFindData = + (FIND_FILE_STANDARD_INFO *)current_entry; + filename = &pFindData->FileName[0]; + len = le32_to_cpu(pFindData->FileNameLength); } else { cFYI(1,("Unknown findfirst level %d",cfile->srch_inf.info_level)); } @@ -651,10 +692,12 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, first_entry_in_buffer = cifsFile->srch_inf.index_of_last_entry - cifsFile->srch_inf.entries_in_buffer; pos_in_buf = index_to_find - first_entry_in_buffer; - cFYI(1,("found entry - pos_in_buf %d",pos_in_buf)); + cFYI(1,("found entry - pos_in_buf %d",pos_in_buf)); + for(i=0;(i<(pos_in_buf)) && (current_entry != NULL);i++) { /* go entry by entry figuring out which is first */ - current_entry = nxt_dir_entry(current_entry,end_of_smb); + current_entry = nxt_dir_entry(current_entry,end_of_smb, + cifsFile->srch_inf.info_level); } if((current_entry == NULL) && (i < pos_in_buf)) { /* BB fixme - check if we should flag this error */ @@ -681,7 +724,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, /* inode num, inode type and filename returned */ static int cifs_get_name_from_search_buf(struct qstr *pqst, char *current_entry, __u16 level, unsigned int unicode, - struct cifs_sb_info * cifs_sb, ino_t *pinum) + struct cifs_sb_info * cifs_sb, int max_len, ino_t *pinum) { int rc = 0; unsigned int len = 0; @@ -725,10 +768,22 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst, (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); + } else if(level == SMB_FIND_FILE_INFO_STANDARD) { + FIND_FILE_STANDARD_INFO * pFindData = + (FIND_FILE_STANDARD_INFO *)current_entry; + filename = &pFindData->FileName[0]; + /* one byte length, no name conversion */ + len = (unsigned int)pFindData->FileNameLength; } else { cFYI(1,("Unknown findfirst level %d",level)); return -EINVAL; } + + if(len > max_len) { + cERROR(1,("bad search response length %d past smb end", len)); + return -EINVAL; + } + if(unicode) { /* BB fixme - test with long names */ /* Note converted filename can be longer than in unicode */ @@ -748,7 +803,7 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst, } static int cifs_filldir(char *pfindEntry, struct file *file, - filldir_t filldir, void *direntry, char *scratch_buf) + filldir_t filldir, void *direntry, char *scratch_buf, int max_len) { int rc = 0; struct qstr qstring; @@ -784,6 +839,7 @@ static int cifs_filldir(char *pfindEntry, struct file *file, rc = cifs_get_name_from_search_buf(&qstring,pfindEntry, pCifsF->srch_inf.info_level, pCifsF->srch_inf.unicode,cifs_sb, + max_len, &inum /* returned */); if(rc) @@ -805,13 +861,16 @@ static int cifs_filldir(char *pfindEntry, struct file *file, /* we pass in rc below, indicating whether it is a new inode, so we can figure out whether to invalidate the inode cached data if the file has changed */ - if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) { + if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) unix_fill_in_inode(tmp_inode, - (FILE_UNIX_INFO *)pfindEntry,&obj_type, rc); - } else { - fill_in_inode(tmp_inode, - (FILE_DIRECTORY_INFO *)pfindEntry,&obj_type, rc); - } + (FILE_UNIX_INFO *)pfindEntry, + &obj_type, rc); + else if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) + fill_in_inode(tmp_inode, 0 /* old level 1 buffer type */, + pfindEntry, &obj_type, rc); + else + fill_in_inode(tmp_inode, 1 /* NT */, pfindEntry, &obj_type, rc); + rc = filldir(direntry,qstring.name,qstring.len,file->f_pos, tmp_inode->i_ino,obj_type); @@ -871,6 +930,12 @@ static int cifs_save_resume_key(const char *current_entry, filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; + } else if(level == SMB_FIND_FILE_INFO_STANDARD) { + FIND_FILE_STANDARD_INFO * pFindData = + (FIND_FILE_STANDARD_INFO *)current_entry; + filename = &pFindData->FileName[0]; + /* one byte length, no name conversion */ + len = (unsigned int)pFindData->FileNameLength; } else { cFYI(1,("Unknown findfirst level %d",level)); return -EINVAL; @@ -891,6 +956,7 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) int num_to_fill = 0; char * tmp_buf = NULL; char * end_of_smb; + int max_len; xid = GetXid(); @@ -966,10 +1032,11 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) goto rddir2_exit; } cFYI(1,("loop through %d times filling dir for net buf %p", - num_to_fill,cifsFile->srch_inf.ntwrk_buf_start)); - end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + - smbCalcSize((struct smb_hdr *) - cifsFile->srch_inf.ntwrk_buf_start); + num_to_fill,cifsFile->srch_inf.ntwrk_buf_start)); + max_len = smbCalcSize((struct smb_hdr *) + cifsFile->srch_inf.ntwrk_buf_start); + end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + max_len; + /* To be safe - for UCS to UTF-8 with strings loaded with the rare long characters alloc more to account for such multibyte target UTF-8 characters. cifs_unicode.c, @@ -984,8 +1051,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) } /* if buggy server returns . and .. late do we want to check for that here? */ - rc = cifs_filldir(current_entry, file, - filldir, direntry,tmp_buf); + rc = cifs_filldir(current_entry, file, + filldir, direntry, tmp_buf, max_len); file->f_pos++; if(file->f_pos == cifsFile->srch_inf.index_of_last_entry) { @@ -994,8 +1061,9 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) cifs_save_resume_key(current_entry,cifsFile); break; } else - current_entry = nxt_dir_entry(current_entry, - end_of_smb); + current_entry = + nxt_dir_entry(current_entry, end_of_smb, + cifsFile->srch_inf.info_level); } kfree(tmp_buf); break; -- cgit v1.2.3 From 1717ffc58850dfa9e08b4977f8d0323cb3336863 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 8 Jun 2006 05:41:32 +0000 Subject: [CIFS] NTLMv2 support part 5 NTLMv2 authentication (stronger authentication than default NTLM) which many servers support now works. There was a problem with the construction of the security blob in the older code. Currently requires /proc/fs/cifs/Experimental to be set to 2 and /proc/fs/cifs/SecurityFlags to be set to 0x4004 (to require using NTLMv2 instead of default of NTLM) Next we will check signing to make sure optional NTLMv2 packet signing also works. Signed-off-by: Steve French --- fs/cifs/CHANGES | 4 +++- fs/cifs/cifsencrypt.c | 60 +++++++++++++++++++++++++++++++++++---------------- fs/cifs/cifsproto.h | 8 ++++--- fs/cifs/sess.c | 2 +- 4 files changed, 50 insertions(+), 24 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 7e0058bc3dd..79a202b8f66 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -5,7 +5,9 @@ session setup needed for OS/2 and older servers such as Windows 95 and 98. Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst so we can do search (ls etc.) to OS/2. Do not send NTCreateX or recent levels of FindFirst unless server says it supports NT SMBs -(instead use legacy equivalents from LANMAN dialect). +(instead use legacy equivalents from LANMAN dialect). Fix to allow +NTLMv2 authentication support (now can use stronger password hashing +on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004) Version 1.43 ------------ diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 8bcb1da3270..a89efaf78a2 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -212,7 +212,8 @@ int cifs_calculate_mac_key(char * key, const char * rn, const char * password) return 0; } -int CalcNTLMv2_partial_mac_key(struct cifsSesInfo * ses, struct nls_table * nls_info) +int CalcNTLMv2_partial_mac_key(struct cifsSesInfo * ses, + const struct nls_table * nls_info) { char temp_hash[16]; struct HMACMD5Context ctx; @@ -305,13 +306,15 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) } #endif /* CIFS_WEAK_PW_HASH */ -static int calc_ntlmv2_hash(const struct cifsSesInfo *ses, - char * ntv2_hash) +static int calc_ntlmv2_hash(struct cifsSesInfo *ses, + const struct nls_table * nls_cp) { int rc = 0; int len; char nt_hash[16]; struct HMACMD5Context * pctxt; + wchar_t * user; + wchar_t * domain; pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL); @@ -321,26 +324,44 @@ static int calc_ntlmv2_hash(const struct cifsSesInfo *ses, /* calculate md4 hash of password */ E_md4hash(ses->password, nt_hash); - /* convERT Domainname to unicode and uppercase */ + /* convert Domainname to unicode and uppercase */ hmac_md5_init_limK_to_64(nt_hash, 16, pctxt); /* convert ses->userName to unicode and uppercase */ - - /* len = ... */ /* BB FIXME BB */ - - /* hmac_md5_update(user, len, pctxt); */ + len = strlen(ses->userName); + user = kmalloc(2 + (len * 2), GFP_KERNEL); + if(user == NULL) + goto calc_exit_2; + len = cifs_strtoUCS(user, ses->userName, len, nls_cp); + UniStrupr(user); + hmac_md5_update((char *)user, 2*len, pctxt); /* convert ses->domainName to unicode and uppercase */ + if(ses->domainName) { + len = strlen(ses->domainName); - /* len = ... */ /* BB FIXME BB */ - /* hmac_md5_update(domain, len, pctxt); */ + domain = kmalloc(2 + (len * 2), GFP_KERNEL); + if(domain == NULL) + goto calc_exit_1; + len = cifs_strtoUCS(domain, ses->domainName, len, nls_cp); + UniStrupr(domain); - hmac_md5_final(ntv2_hash, pctxt); + hmac_md5_update((char *)domain, 2*len, pctxt); + + kfree(domain); + } +calc_exit_1: + kfree(user); +calc_exit_2: + /* BB FIXME what about bytes 24 through 40 of the signing key? + compare with the NTLM example */ + hmac_md5_final(ses->server->mac_signing_key, pctxt); return rc; } -void setup_ntlmv2_rsp(const struct cifsSesInfo * ses, char * resp_buf) +void setup_ntlmv2_rsp(struct cifsSesInfo * ses, char * resp_buf, + const struct nls_table * nls_cp) { int rc; struct ntlmv2_resp * buf = (struct ntlmv2_resp *)resp_buf; @@ -348,27 +369,28 @@ void setup_ntlmv2_rsp(const struct cifsSesInfo * ses, char * resp_buf) buf->blob_signature = cpu_to_le32(0x00000101); buf->reserved = 0; buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME)); - get_random_bytes(&buf->client_chal, sizeof(buf->client_chal)); + get_random_bytes(&buf->client_chal, sizeof(buf->client_chal)); buf->reserved2 = 0; buf->names[0].type = 0; buf->names[0].length = 0; /* calculate buf->ntlmv2_hash */ - rc = calc_ntlmv2_hash(ses,buf->ntlmv2_hash); + rc = calc_ntlmv2_hash(ses, nls_cp); if(rc) cERROR(1,("could not get v2 hash rc %d",rc)); + CalcNTLMv2_response(ses, resp_buf); } -void CalcNTLMv2_response(const struct cifsSesInfo * ses,char * v2_session_response) +void CalcNTLMv2_response(const struct cifsSesInfo * ses, char * v2_session_response) { struct HMACMD5Context context; + /* rest of v2 struct already generated */ memcpy(v2_session_response + 8, ses->server->cryptKey,8); - /* gen_blob(v2_session_response + 16); */ hmac_md5_init_limK_to_64(ses->server->mac_signing_key, 16, &context); - hmac_md5_update(ses->server->cryptKey,8,&context); -/* hmac_md5_update(v2_session_response+16)client thing,8,&context); */ /* BB fix */ + hmac_md5_update(v2_session_response+8, + sizeof(struct ntlmv2_resp) - 8, &context); hmac_md5_final(v2_session_response,&context); - cifs_dump_mem("v2_sess_rsp: ", v2_session_response, 32); /* BB removeme BB */ +/* cifs_dump_mem("v2_sess_rsp: ", v2_session_response, 32); */ } diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 824afb937a6..7ffd5b0d63c 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -285,9 +285,11 @@ extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *, extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key, __u32 expected_sequence_number); extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass); -extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, struct nls_table *); -extern void CalcNTLMv2_response(const struct cifsSesInfo *,char * ); -extern void setup_ntlmv2_rsp(const struct cifsSesInfo *, char *); +extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, + const struct nls_table *); +extern void CalcNTLMv2_response(const struct cifsSesInfo *, char * ); +extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *, + const struct nls_table *); #ifdef CONFIG_CIFS_WEAK_PW_HASH extern void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key); #endif /* CIFS_WEAK_PW_HASH */ diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index c6fd01f55e9..c039b54206a 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -432,7 +432,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, cpu_to_le16(sizeof(struct ntlmv2_resp)); /* calculate session key */ - setup_ntlmv2_rsp(ses, v2_sess_key); + setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp); if(first_time) /* should this be moved into common code with similar ntlmv2 path? */ /* cifs_calculate_ntlmv2_mac_key(ses->server->mac_signing_key, -- cgit v1.2.3 From 9870a93d3118239fd7732a0f908e05f67b39a294 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Thu, 1 Jun 2006 21:28:50 -0400 Subject: kbuild: obj-dirs is calculated incorrectly if hostprogs-y is defined When Makefile.host is included, $(obj-dirs) is subjected to the addprefix operation for the second time. Prefix only needs to be added to the newly added directories, but not to those that came from Makefile.lib. This causes the build system to create unneeded empty directories in the build tree when building in a separate directory. For instance, lib/lib/zlib_inflate is created in the build tree. Signed-off-by: Pavel Roskin Signed-off-by: Sam Ravnborg --- scripts/Makefile.host | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/scripts/Makefile.host b/scripts/Makefile.host index 2d519704b8f..2b066d12af2 100644 --- a/scripts/Makefile.host +++ b/scripts/Makefile.host @@ -33,8 +33,8 @@ __hostprogs := $(sort $(hostprogs-y)$(hostprogs-m)) # hostprogs-y := tools/build may have been specified. Retreive directory -obj-dirs += $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f)))) -obj-dirs := $(strip $(sort $(filter-out ./,$(obj-dirs)))) +host-objdirs := $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f)))) +host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs)))) # C code @@ -73,7 +73,9 @@ host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) host-cshlib := $(addprefix $(obj)/,$(host-cshlib)) host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs)) -obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) +host-objdirs := $(addprefix $(obj)/,$(host-objdirs)) + +obj-dirs += $(host-objdirs) ##### # Handle options to gcc. Support building with separate output directory -- cgit v1.2.3 From 1a0f3d422bb9ac959383a5ed1a4127f5900f56a8 Mon Sep 17 00:00:00 2001 From: Mike Wolf Date: Fri, 2 Jun 2006 09:53:42 -0500 Subject: kbuild: fix make rpm for powerpc The default target for most powerpc platforms is zImage. The zImage however is in arch/powerpc/boot and the mkspec script was set up to get the kernel from the top level of the kernel tree. This patch copies vmlinux to arch/powerpc/boot and then copies the kernel to the tmp directory so the rpm can be made. Signed-off-by: Mike Wolf Signed-off-by: Sam Ravnborg --- scripts/package/mkspec | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/scripts/package/mkspec b/scripts/package/mkspec index 0b103873754..df892841b11 100755 --- a/scripts/package/mkspec +++ b/scripts/package/mkspec @@ -73,8 +73,13 @@ echo "%ifarch ia64" echo 'cp $KBUILD_IMAGE $RPM_BUILD_ROOT'"/boot/efi/vmlinuz-$KERNELRELEASE" echo 'ln -s '"efi/vmlinuz-$KERNELRELEASE" '$RPM_BUILD_ROOT'"/boot/" echo "%else" +echo "%ifarch ppc64" +echo "cp vmlinux arch/powerpc/boot" +echo "cp arch/powerpc/boot/"'$KBUILD_IMAGE $RPM_BUILD_ROOT'"/boot/vmlinuz-$KERNELRELEASE" +echo "%else" echo 'cp $KBUILD_IMAGE $RPM_BUILD_ROOT'"/boot/vmlinuz-$KERNELRELEASE" echo "%endif" +echo "%endif" echo 'cp System.map $RPM_BUILD_ROOT'"/boot/System.map-$KERNELRELEASE" -- cgit v1.2.3 From 35899c57516be6eaa42cc27151767c52d75b2979 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 7 Jun 2006 16:23:26 -0700 Subject: kbuild: ignore smp_locks section warnings from init/exit code Add ".smp_locks" section to whitelist as being safe from init and exit sections. Signed-off-by: Randy Dunlap Signed-off-by: Sam Ravnborg --- scripts/mod/modpost.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index d0f86ed43f7..94047bc9996 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -821,6 +821,7 @@ static int init_section_ref_ok(const char *name) ".pci_fixup_final", ".pdr", "__param", + ".smp_locks", NULL }; /* Start of section names */ @@ -892,6 +893,7 @@ static int exit_section_ref_ok(const char *name) ".exitcall.exit", ".eh_frame", ".stab", + ".smp_locks", NULL }; /* Start of section names */ -- cgit v1.2.3 From 909252d279dd5d47e44c125558e87bb44097289f Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 8 Jun 2006 20:37:30 +0200 Subject: kbuild: fix false section mismatch with ARCH=um build Ignoring references to .init.text, .exit.text from the .plt section brought the false positives down to two warnings for a defconfig build of ARCH=um on x86_64. Signed-off-by: Sam Ravnborg --- scripts/mod/modpost.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 94047bc9996..a70f5ddb705 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -822,6 +822,7 @@ static int init_section_ref_ok(const char *name) ".pdr", "__param", ".smp_locks", + ".plt", /* seen on ARCH=um build on x86_64. Harmless */ NULL }; /* Start of section names */ @@ -894,6 +895,7 @@ static int exit_section_ref_ok(const char *name) ".eh_frame", ".stab", ".smp_locks", + ".plt", /* seen on ARCH=um build on x86_64. Harmless */ NULL }; /* Start of section names */ -- cgit v1.2.3 From ddc97cacb310ad68483952e67764c4153c138ed2 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:38 -0700 Subject: kconfig: improve config load/save output During loading special case the first common case (.config), be silent about it and otherwise mark it as a change that requires saving. Instead output that the file has been changed. IOW if conf does nothing (special), it's silent. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/confdata.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 1b5df589f3a..a9e3b6abf66 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -98,20 +98,28 @@ int conf_read_simple(const char *name) in = zconf_fopen(name); } else { const char **names = conf_confnames; + name = *names++; + if (!name) + return 1; + in = zconf_fopen(name); + if (in) + goto load; + sym_change_count++; while ((name = *names++)) { name = conf_expand_value(name); in = zconf_fopen(name); if (in) { printf(_("#\n" - "# using defaults found in %s\n" - "#\n"), name); - break; + "# using defaults found in %s\n" + "#\n"), name); + goto load; } } } if (!in) return 1; +load: conf_filename = name; conf_lineno = 0; conf_warnings = 0; @@ -275,6 +283,8 @@ int conf_read(const char *name) struct expr *e; int i; + sym_change_count = 0; + if (conf_read_simple(name)) return 1; @@ -325,7 +335,7 @@ int conf_read(const char *name) sym->flags |= e->right.sym->flags & SYMBOL_NEW; } - sym_change_count = conf_warnings || conf_unsaved; + sym_change_count += conf_warnings || conf_unsaved; return 0; } @@ -524,6 +534,10 @@ int conf_write(const char *name) if (rename(newname, tmpname)) return 1; + printf(_("#\n" + "# configuration written to %s\n" + "#\n"), tmpname); + sym_change_count = 0; return 0; -- cgit v1.2.3 From c955ccafc38e77312b4c65e5a70960080fb8a3f2 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:39 -0700 Subject: kconfig: fix .config dependencies This fixes one of the worst kbuild warts left - the broken dependencies used to check and regenerate the .config file. This was done via an indirect dependency and the .config itself had an empty command, which can cause make not to reread the changed .config file. Instead of this we generate now a new file include/config/auto.conf from .config, which is used for kbuild and has the proper dependencies. It's also the main make target now for all files generated during this step (and thus replaces include/linux/autoconf.h). This also means we can now relax the syntax requirements for the .config file and we don't have to rewrite it all the time, i.e. silentoldconfig only writes .config now when it's necessary to keep it in sync with the Kconfig files and even this can be suppressed by setting the environment variable KCONFIG_NOSILENTUPDATE, so the update can (and must) be done manually. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- Makefile | 27 +++---- scripts/Makefile.build | 2 +- scripts/Makefile.modpost | 2 +- scripts/kconfig/conf.c | 16 +++- scripts/kconfig/confdata.c | 177 +++++++++++++++++++++++++++++++------------- scripts/kconfig/lkc_proto.h | 1 + scripts/kconfig/util.c | 4 +- 7 files changed, 156 insertions(+), 73 deletions(-) diff --git a/Makefile b/Makefile index a3a7baad855..b1610562a65 100644 --- a/Makefile +++ b/Makefile @@ -404,7 +404,7 @@ include $(srctree)/arch/$(ARCH)/Makefile export KBUILD_DEFCONFIG config %config: scripts_basic outputmakefile FORCE - $(Q)mkdir -p include/linux + $(Q)mkdir -p include/linux include/config $(Q)$(MAKE) $(build)=scripts/kconfig $@ $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease @@ -421,8 +421,6 @@ PHONY += scripts scripts: scripts_basic include/config/MARKER $(Q)$(MAKE) $(build)=$(@) -scripts_basic: include/linux/autoconf.h - # Objects we will link into vmlinux / subdirs we need to visit init-y := init/ drivers-y := drivers/ sound/ @@ -436,25 +434,22 @@ ifeq ($(dot-config),1) # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. --include .kconfig.d - -include .config +-include include/config/auto.conf.cmd +-include include/config/auto.conf -# If .config needs to be updated, it will be done via the dependency -# that autoconf has on .config. # To avoid any implicit rule to kick in, define an empty command -.config .kconfig.d: ; +.config include/config/auto.conf.cmd: ; -# If .config is newer than include/linux/autoconf.h, someone tinkered +# If .config is newer than include/config/auto.conf, someone tinkered # with it and forgot to run make oldconfig. -# If kconfig.d is missing then we are probarly in a cleaned tree so +# if auto.conf.cmd is missing then we are probarly in a cleaned tree so # we execute the config step to be sure to catch updated Kconfig files -include/linux/autoconf.h: .kconfig.d .config - $(Q)mkdir -p include/linux +include/config/auto.conf: .config include/config/auto.conf.cmd $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig + else # Dummy target needed, because used as prerequisite -include/linux/autoconf.h: ; +include/config/auto.conf: ; endif # The all: target is the default when no target is given on the @@ -779,7 +774,7 @@ PHONY += prepare-all prepare3: .kernelrelease ifneq ($(KBUILD_SRC),) @echo ' Using $(srctree) as source for kernel' - $(Q)if [ -f $(srctree)/.config ]; then \ + $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ echo " $(srctree) is not clean, please run 'make mrproper'";\ echo " in the '$(srctree)' directory.";\ /bin/false; \ @@ -822,7 +817,7 @@ include/asm: # Split autoconf.h into include/linux/config/* -include/config/MARKER: scripts/basic/split-include include/linux/autoconf.h +include/config/MARKER: scripts/basic/split-include include/config/auto.conf @echo ' SPLIT include/linux/autoconf.h -> include/config/*' @scripts/basic/split-include include/linux/autoconf.h include/config @touch $@ diff --git a/scripts/Makefile.build b/scripts/Makefile.build index e48e60da304..53e53a2e80a 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -8,7 +8,7 @@ PHONY := __build __build: # Read .config if it exist, otherwise ignore --include .config +-include include/config/auto.conf include scripts/Kbuild.include diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 0e056cffffd..576cce5e387 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -35,7 +35,7 @@ PHONY := _modpost _modpost: __modpost -include .config +include include/config/auto.conf include scripts/Kbuild.include include scripts/Makefile.lib diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c index 8012d107687..9334da65f36 100644 --- a/scripts/kconfig/conf.c +++ b/scripts/kconfig/conf.c @@ -599,7 +599,15 @@ int main(int ac, char **av) input_mode = ask_silent; valid_stdin = 1; } - } + } else if (sym_change_count) { + name = getenv("KCONFIG_NOSILENTUPDATE"); + if (name && *name) { + fprintf(stderr, _("\n*** Kernel configuration requires explicit update.\n\n")); + return 1; + } + } else + goto skip_check; + do { conf_cnt = 0; check_conf(&rootmenu); @@ -608,5 +616,11 @@ int main(int ac, char **av) fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n")); return 1; } +skip_check: + if (input_mode == ask_silent && conf_write_autoconf()) { + fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n")); + return 1; + } + return 0; } diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index a9e3b6abf66..2da4a8d775a 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -342,7 +342,7 @@ int conf_read(const char *name) int conf_write(const char *name) { - FILE *out, *out_h; + FILE *out; struct symbol *sym; struct menu *menu; const char *basename; @@ -379,13 +379,6 @@ int conf_write(const char *name) out = fopen(newname, "w"); if (!out) return 1; - out_h = NULL; - if (!name) { - out_h = fopen(".tmpconfig.h", "w"); - if (!out_h) - return 1; - file_write_dep(NULL); - } sym = sym_lookup("KERNELVERSION", 0); sym_calc_value(sym); time(&now); @@ -401,16 +394,6 @@ int conf_write(const char *name) sym_get_string_value(sym), use_timestamp ? "# " : "", use_timestamp ? ctime(&now) : ""); - if (out_h) - fprintf(out_h, "/*\n" - " * Automatically generated C config: don't edit\n" - " * Linux kernel version: %s\n" - "%s%s" - " */\n" - "#define AUTOCONF_INCLUDED\n", - sym_get_string_value(sym), - use_timestamp ? " * " : "", - use_timestamp ? ctime(&now) : ""); if (!sym_change_count) sym_clear_all_valid(); @@ -426,11 +409,6 @@ int conf_write(const char *name) "#\n" "# %s\n" "#\n", str); - if (out_h) - fprintf(out_h, "\n" - "/*\n" - " * %s\n" - " */\n", str); } else if (!(sym->flags & SYMBOL_CHOICE)) { sym_calc_value(sym); if (!(sym->flags & SYMBOL_WRITE)) @@ -448,59 +426,39 @@ int conf_write(const char *name) switch (sym_get_tristate_value(sym)) { case no: fprintf(out, "# CONFIG_%s is not set\n", sym->name); - if (out_h) - fprintf(out_h, "#undef CONFIG_%s\n", sym->name); break; case mod: fprintf(out, "CONFIG_%s=m\n", sym->name); - if (out_h) - fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name); break; case yes: fprintf(out, "CONFIG_%s=y\n", sym->name); - if (out_h) - fprintf(out_h, "#define CONFIG_%s 1\n", sym->name); break; } break; case S_STRING: - // fix me str = sym_get_string_value(sym); fprintf(out, "CONFIG_%s=\"", sym->name); - if (out_h) - fprintf(out_h, "#define CONFIG_%s \"", sym->name); - do { + while (1) { l = strcspn(str, "\"\\"); if (l) { fwrite(str, l, 1, out); - if (out_h) - fwrite(str, l, 1, out_h); - } - str += l; - while (*str == '\\' || *str == '"') { - fprintf(out, "\\%c", *str); - if (out_h) - fprintf(out_h, "\\%c", *str); - str++; + str += l; } - } while (*str); + if (!*str) + break; + fprintf(out, "\\%c", *str++); + } fputs("\"\n", out); - if (out_h) - fputs("\"\n", out_h); break; case S_HEX: str = sym_get_string_value(sym); if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { fprintf(out, "CONFIG_%s=%s\n", sym->name, str); - if (out_h) - fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str); break; } case S_INT: str = sym_get_string_value(sym); fprintf(out, "CONFIG_%s=%s\n", sym->name, str); - if (out_h) - fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str); break; } } @@ -520,10 +478,6 @@ int conf_write(const char *name) } } fclose(out); - if (out_h) { - fclose(out_h); - rename(".tmpconfig.h", "include/linux/autoconf.h"); - } if (!name || basename != conf_def_filename) { if (!name) name = conf_def_filename; @@ -542,3 +496,120 @@ int conf_write(const char *name) return 0; } + +int conf_write_autoconf(void) +{ + struct symbol *sym; + const char *str; + char *name; + FILE *out, *out_h; + time_t now; + int i, l; + + file_write_dep("include/config/auto.conf.cmd"); + + out = fopen(".tmpconfig", "w"); + if (!out) + return 1; + + out_h = fopen(".tmpconfig.h", "w"); + if (!out_h) { + fclose(out); + return 1; + } + + sym = sym_lookup("KERNELVERSION", 0); + sym_calc_value(sym); + time(&now); + fprintf(out, "#\n" + "# Automatically generated make config: don't edit\n" + "# Linux kernel version: %s\n" + "# %s" + "#\n", + sym_get_string_value(sym), ctime(&now)); + fprintf(out_h, "/*\n" + " * Automatically generated C config: don't edit\n" + " * Linux kernel version: %s\n" + " * %s" + " */\n" + "#define AUTOCONF_INCLUDED\n", + sym_get_string_value(sym), ctime(&now)); + + sym_clear_all_valid(); + + for_all_symbols(i, sym) { + sym_calc_value(sym); + if (!(sym->flags & SYMBOL_WRITE) || !sym->name) + continue; + switch (sym->type) { + case S_BOOLEAN: + case S_TRISTATE: + switch (sym_get_tristate_value(sym)) { + case no: + break; + case mod: + fprintf(out, "CONFIG_%s=m\n", sym->name); + fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name); + break; + case yes: + fprintf(out, "CONFIG_%s=y\n", sym->name); + fprintf(out_h, "#define CONFIG_%s 1\n", sym->name); + break; + } + break; + case S_STRING: + str = sym_get_string_value(sym); + fprintf(out, "CONFIG_%s=\"", sym->name); + fprintf(out_h, "#define CONFIG_%s \"", sym->name); + while (1) { + l = strcspn(str, "\"\\"); + if (l) { + fwrite(str, l, 1, out); + fwrite(str, l, 1, out_h); + str += l; + } + if (!*str) + break; + fprintf(out, "\\%c", *str); + fprintf(out_h, "\\%c", *str); + str++; + } + fputs("\"\n", out); + fputs("\"\n", out_h); + break; + case S_HEX: + str = sym_get_string_value(sym); + if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { + fprintf(out, "CONFIG_%s=%s\n", sym->name, str); + fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str); + break; + } + case S_INT: + str = sym_get_string_value(sym); + fprintf(out, "CONFIG_%s=%s\n", sym->name, str); + fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str); + break; + default: + break; + } + } + fclose(out); + fclose(out_h); + + name = getenv("KCONFIG_AUTOHEADER"); + if (!name) + name = "include/linux/autoconf.h"; + if (rename(".tmpconfig.h", name)) + return 1; + name = getenv("KCONFIG_AUTOCONFIG"); + if (!name) + name = "include/config/auto.conf"; + /* + * This must be the last step, kbuild has a dependency on auto.conf + * and this marks the successful completion of the previous steps. + */ + if (rename(".tmpconfig", name)) + return 1; + + return 0; +} diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h index b6a389c5fcb..bd0fb1dc132 100644 --- a/scripts/kconfig/lkc_proto.h +++ b/scripts/kconfig/lkc_proto.h @@ -4,6 +4,7 @@ P(conf_parse,void,(const char *name)); P(conf_read,int,(const char *name)); P(conf_read_simple,int,(const char *name)); P(conf_write,int,(const char *name)); +P(conf_write_autoconf,int,(void)); /* menu.c */ P(rootmenu,struct menu,); diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c index 656d2c87d66..e3f28b9d59f 100644 --- a/scripts/kconfig/util.c +++ b/scripts/kconfig/util.c @@ -44,7 +44,9 @@ int file_write_dep(const char *name) else fprintf(out, "\t%s\n", file->name); } - fprintf(out, "\n.config include/linux/autoconf.h: $(deps_config)\n\n$(deps_config):\n"); + fprintf(out, "\ninclude/config/auto.conf: \\\n" + "\t$(deps_config)\n\n" + "$(deps_config): ;\n"); fclose(out); rename("..config.tmp", name); return 0; -- cgit v1.2.3 From c0e150acde52e4661675539bf5323309270f2e83 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:40 -0700 Subject: kconfig: remove SYMBOL_{YES,MOD,NO} The SYMBOL_{YES,MOD,NO} are not really used anymore (they were more used be the cml1 converter), so just remove them. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/expr.c | 3 ++- scripts/kconfig/expr.h | 5 +---- scripts/kconfig/gconf.c | 6 ------ scripts/kconfig/symbol.c | 6 +++--- 4 files changed, 6 insertions(+), 14 deletions(-) diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c index 30e4f9d69c2..87238afb21b 100644 --- a/scripts/kconfig/expr.c +++ b/scripts/kconfig/expr.c @@ -145,7 +145,8 @@ static void __expr_eliminate_eq(enum expr_type type, struct expr **ep1, struct e return; } if (e1->type == E_SYMBOL && e2->type == E_SYMBOL && - e1->left.sym == e2->left.sym && (e1->left.sym->flags & (SYMBOL_YES|SYMBOL_NO))) + e1->left.sym == e2->left.sym && + (e1->left.sym == &symbol_yes || e1->left.sym == &symbol_no)) return; if (!expr_eq(e1, e2)) return; diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h index 1b36ef18c48..52ea4df8e34 100644 --- a/scripts/kconfig/expr.h +++ b/scripts/kconfig/expr.h @@ -78,10 +78,7 @@ struct symbol { #define for_all_symbols(i, sym) for (i = 0; i < 257; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER) -#define SYMBOL_YES 0x0001 -#define SYMBOL_MOD 0x0002 -#define SYMBOL_NO 0x0004 -#define SYMBOL_CONST 0x0007 +#define SYMBOL_CONST 0x0001 #define SYMBOL_CHECK 0x0008 #define SYMBOL_CHOICE 0x0010 #define SYMBOL_CHOICEVAL 0x0020 diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c index 665bd5300a1..9cb3e6a4755 100644 --- a/scripts/kconfig/gconf.c +++ b/scripts/kconfig/gconf.c @@ -114,12 +114,6 @@ const char *dbg_print_flags(int val) bzero(buf, 256); - if (val & SYMBOL_YES) - strcat(buf, "yes/"); - if (val & SYMBOL_MOD) - strcat(buf, "mod/"); - if (val & SYMBOL_NO) - strcat(buf, "no/"); if (val & SYMBOL_CONST) strcat(buf, "const/"); if (val & SYMBOL_CHECK) diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c index 3d7877afccd..a0a467a4387 100644 --- a/scripts/kconfig/symbol.c +++ b/scripts/kconfig/symbol.c @@ -15,15 +15,15 @@ struct symbol symbol_yes = { .name = "y", .curr = { "y", yes }, - .flags = SYMBOL_YES|SYMBOL_VALID, + .flags = SYMBOL_CONST|SYMBOL_VALID, }, symbol_mod = { .name = "m", .curr = { "m", mod }, - .flags = SYMBOL_MOD|SYMBOL_VALID, + .flags = SYMBOL_CONST|SYMBOL_VALID, }, symbol_no = { .name = "n", .curr = { "n", no }, - .flags = SYMBOL_NO|SYMBOL_VALID, + .flags = SYMBOL_CONST|SYMBOL_VALID, }, symbol_empty = { .name = "", .curr = { "", no }, -- cgit v1.2.3 From 0c1822e6991a10da6dc391f0a2e2cf5fb2e31238 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:41 -0700 Subject: kconfig: allow multiple default values per symbol Extend struct symbol to allow storing multiple default values, which can be used to hold multiple configurations. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/confdata.c | 34 +++++++++++++++++----------------- scripts/kconfig/expr.h | 7 ++++++- scripts/kconfig/symbol.c | 16 ++++++++-------- 3 files changed, 31 insertions(+), 26 deletions(-) diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 2da4a8d775a..54ca1a786d2 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -134,11 +134,11 @@ load: case S_INT: case S_HEX: case S_STRING: - if (sym->user.val) - free(sym->user.val); + if (sym->def[S_DEF_USER].val) + free(sym->def[S_DEF_USER].val); default: - sym->user.val = NULL; - sym->user.tri = no; + sym->def[S_DEF_USER].val = NULL; + sym->def[S_DEF_USER].tri = no; } } @@ -166,7 +166,7 @@ load: switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: - sym->user.tri = no; + sym->def[S_DEF_USER].tri = no; sym->flags &= ~SYMBOL_NEW; break; default: @@ -196,18 +196,18 @@ load: switch (sym->type) { case S_TRISTATE: if (p[0] == 'm') { - sym->user.tri = mod; + sym->def[S_DEF_USER].tri = mod; sym->flags &= ~SYMBOL_NEW; break; } case S_BOOLEAN: if (p[0] == 'y') { - sym->user.tri = yes; + sym->def[S_DEF_USER].tri = yes; sym->flags &= ~SYMBOL_NEW; break; } if (p[0] == 'n') { - sym->user.tri = no; + sym->def[S_DEF_USER].tri = no; sym->flags &= ~SYMBOL_NEW; break; } @@ -230,7 +230,7 @@ load: case S_INT: case S_HEX: if (sym_string_valid(sym, p)) { - sym->user.val = strdup(p); + sym->def[S_DEF_USER].val = strdup(p); sym->flags &= ~SYMBOL_NEW; } else { conf_warning("symbol value '%s' invalid for %s", p, sym->name); @@ -249,24 +249,24 @@ load: } if (sym && sym_is_choice_value(sym)) { struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); - switch (sym->user.tri) { + switch (sym->def[S_DEF_USER].tri) { case no: break; case mod: - if (cs->user.tri == yes) { + if (cs->def[S_DEF_USER].tri == yes) { conf_warning("%s creates inconsistent choice state", sym->name); cs->flags |= SYMBOL_NEW; } break; case yes: - if (cs->user.tri != no) { + if (cs->def[S_DEF_USER].tri != no) { conf_warning("%s creates inconsistent choice state", sym->name); cs->flags |= SYMBOL_NEW; } else - cs->user.val = sym; + cs->def[S_DEF_USER].val = sym; break; } - cs->user.tri = E_OR(cs->user.tri, sym->user.tri); + cs->def[S_DEF_USER].tri = E_OR(cs->def[S_DEF_USER].tri, sym->def[S_DEF_USER].tri); } } fclose(in); @@ -297,12 +297,12 @@ int conf_read(const char *name) switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: - if (sym->user.tri != sym_get_tristate_value(sym)) + if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) break; if (!sym_is_choice(sym)) goto sym_ok; default: - if (!strcmp(sym->curr.val, sym->user.val)) + if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) goto sym_ok; break; } @@ -319,7 +319,7 @@ int conf_read(const char *name) case S_STRING: case S_INT: case S_HEX: - if (!sym_string_within_range(sym, sym->user.val)) { + if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val)) { sym->flags |= SYMBOL_NEW; sym->flags &= ~SYMBOL_VALID; } diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h index 52ea4df8e34..043859d426d 100644 --- a/scripts/kconfig/expr.h +++ b/scripts/kconfig/expr.h @@ -63,12 +63,17 @@ enum symbol_type { S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER }; +enum { + S_DEF_USER, /* main user value */ +}; + struct symbol { struct symbol *next; char *name; char *help; enum symbol_type type; - struct symbol_value curr, user; + struct symbol_value curr; + struct symbol_value def[4]; tristate visible; int flags; struct property *prop; diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c index a0a467a4387..4ea0050dcb1 100644 --- a/scripts/kconfig/symbol.c +++ b/scripts/kconfig/symbol.c @@ -227,7 +227,7 @@ static struct symbol *sym_calc_choice(struct symbol *sym) struct expr *e; /* is the user choice visible? */ - def_sym = sym->user.val; + def_sym = sym->def[S_DEF_USER].val; if (def_sym) { sym_calc_visibility(def_sym); if (def_sym->visible != no) @@ -306,7 +306,7 @@ void sym_calc_value(struct symbol *sym) } else if (E_OR(sym->visible, sym->rev_dep.tri) != no) { sym->flags |= SYMBOL_WRITE; if (sym_has_value(sym)) - newval.tri = sym->user.tri; + newval.tri = sym->def[S_DEF_USER].tri; else if (!sym_is_choice(sym)) { prop = sym_get_default_prop(sym); if (prop) @@ -329,7 +329,7 @@ void sym_calc_value(struct symbol *sym) if (sym->visible != no) { sym->flags |= SYMBOL_WRITE; if (sym_has_value(sym)) { - newval.val = sym->user.val; + newval.val = sym->def[S_DEF_USER].val; break; } } @@ -439,7 +439,7 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val) struct property *prop; struct expr *e; - cs->user.val = sym; + cs->def[S_DEF_USER].val = sym; cs->flags &= ~SYMBOL_NEW; prop = sym_get_choice_prop(cs); for (e = prop->expr; e; e = e->left.expr) { @@ -448,7 +448,7 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val) } } - sym->user.tri = val; + sym->def[S_DEF_USER].tri = val; if (oldval != val) { sym_clear_all_valid(); if (sym == modules_sym) @@ -596,15 +596,15 @@ bool sym_set_string_value(struct symbol *sym, const char *newval) sym_set_changed(sym); } - oldval = sym->user.val; + oldval = sym->def[S_DEF_USER].val; size = strlen(newval) + 1; if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) { size += 2; - sym->user.val = val = malloc(size); + sym->def[S_DEF_USER].val = val = malloc(size); *val++ = '0'; *val++ = 'x'; } else if (!oldval || strcmp(oldval, newval)) - sym->user.val = val = malloc(size); + sym->def[S_DEF_USER].val = val = malloc(size); else return true; -- cgit v1.2.3 From 669bfad906522e74ee8d962801552a8c224c0d63 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:42 -0700 Subject: kconfig: allow loading multiple configurations Extend conf_read_simple() so it can load multiple configurations. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/conf.c | 6 +-- scripts/kconfig/confdata.c | 111 ++++++++++++++++++++++++++------------------ scripts/kconfig/expr.h | 6 ++- scripts/kconfig/gconf.c | 6 +-- scripts/kconfig/lkc.h | 2 +- scripts/kconfig/lkc_proto.h | 2 +- scripts/kconfig/symbol.c | 13 +++--- 7 files changed, 84 insertions(+), 62 deletions(-) diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c index 9334da65f36..ded5ffe184b 100644 --- a/scripts/kconfig/conf.c +++ b/scripts/kconfig/conf.c @@ -573,7 +573,7 @@ int main(int ac, char **av) case set_random: name = getenv("KCONFIG_ALLCONFIG"); if (name && !stat(name, &tmpstat)) { - conf_read_simple(name); + conf_read_simple(name, S_DEF_USER); break; } switch (input_mode) { @@ -584,9 +584,9 @@ int main(int ac, char **av) default: break; } if (!stat(name, &tmpstat)) - conf_read_simple(name); + conf_read_simple(name, S_DEF_USER); else if (!stat("all.config", &tmpstat)) - conf_read_simple("all.config"); + conf_read_simple("all.config", S_DEF_USER); break; default: break; diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 54ca1a786d2..ca693fcd023 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -86,13 +86,13 @@ char *conf_get_default_confname(void) return name; } -int conf_read_simple(const char *name) +int conf_read_simple(const char *name, int def) { FILE *in = NULL; char line[1024]; char *p, *p2; struct symbol *sym; - int i; + int i, def_flags; if (name) { in = zconf_fopen(name); @@ -125,20 +125,21 @@ load: conf_warnings = 0; conf_unsaved = 0; + def_flags = SYMBOL_DEF << def; for_all_symbols(i, sym) { - sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED; + sym->flags |= SYMBOL_CHANGED; + sym->flags &= ~(def_flags|SYMBOL_VALID); if (sym_is_choice(sym)) - sym->flags &= ~SYMBOL_NEW; - sym->flags &= ~SYMBOL_VALID; + sym->flags |= def_flags; switch (sym->type) { case S_INT: case S_HEX: case S_STRING: - if (sym->def[S_DEF_USER].val) - free(sym->def[S_DEF_USER].val); + if (sym->def[def].val) + free(sym->def[def].val); default: - sym->def[S_DEF_USER].val = NULL; - sym->def[S_DEF_USER].tri = no; + sym->def[def].val = NULL; + sym->def[def].tri = no; } } @@ -155,19 +156,26 @@ load: *p++ = 0; if (strncmp(p, "is not set", 10)) continue; - sym = sym_find(line + 9); - if (!sym) { - conf_warning("trying to assign nonexistent symbol %s", line + 9); - break; - } else if (!(sym->flags & SYMBOL_NEW)) { + if (def == S_DEF_USER) { + sym = sym_find(line + 9); + if (!sym) { + conf_warning("trying to assign nonexistent symbol %s", line + 9); + break; + } + } else { + sym = sym_lookup(line + 9, 0); + if (sym->type == S_UNKNOWN) + sym->type = S_BOOLEAN; + } + if (sym->flags & def_flags) { conf_warning("trying to reassign symbol %s", sym->name); break; } switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: - sym->def[S_DEF_USER].tri = no; - sym->flags &= ~SYMBOL_NEW; + sym->def[def].tri = no; + sym->flags |= def_flags; break; default: ; @@ -185,34 +193,48 @@ load: p2 = strchr(p, '\n'); if (p2) *p2 = 0; - sym = sym_find(line + 7); - if (!sym) { - conf_warning("trying to assign nonexistent symbol %s", line + 7); - break; - } else if (!(sym->flags & SYMBOL_NEW)) { + if (def == S_DEF_USER) { + sym = sym_find(line + 7); + if (!sym) { + conf_warning("trying to assign nonexistent symbol %s", line + 7); + break; + } + } else { + sym = sym_lookup(line + 7, 0); + if (sym->type == S_UNKNOWN) + sym->type = S_OTHER; + } + if (sym->flags & def_flags) { conf_warning("trying to reassign symbol %s", sym->name); break; } switch (sym->type) { case S_TRISTATE: if (p[0] == 'm') { - sym->def[S_DEF_USER].tri = mod; - sym->flags &= ~SYMBOL_NEW; + sym->def[def].tri = mod; + sym->flags |= def_flags; break; } case S_BOOLEAN: if (p[0] == 'y') { - sym->def[S_DEF_USER].tri = yes; - sym->flags &= ~SYMBOL_NEW; + sym->def[def].tri = yes; + sym->flags |= def_flags; break; } if (p[0] == 'n') { - sym->def[S_DEF_USER].tri = no; - sym->flags &= ~SYMBOL_NEW; + sym->def[def].tri = no; + sym->flags |= def_flags; break; } conf_warning("symbol value '%s' invalid for %s", p, sym->name); break; + case S_OTHER: + if (*p != '"') { + for (p2 = p; *p2 && !isspace(*p2); p2++) + ; + sym->type = S_STRING; + goto done; + } case S_STRING: if (*p++ != '"') break; @@ -229,9 +251,10 @@ load: } case S_INT: case S_HEX: + done: if (sym_string_valid(sym, p)) { - sym->def[S_DEF_USER].val = strdup(p); - sym->flags &= ~SYMBOL_NEW; + sym->def[def].val = strdup(p); + sym->flags |= def_flags; } else { conf_warning("symbol value '%s' invalid for %s", p, sym->name); continue; @@ -249,24 +272,24 @@ load: } if (sym && sym_is_choice_value(sym)) { struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); - switch (sym->def[S_DEF_USER].tri) { + switch (sym->def[def].tri) { case no: break; case mod: - if (cs->def[S_DEF_USER].tri == yes) { + if (cs->def[def].tri == yes) { conf_warning("%s creates inconsistent choice state", sym->name); - cs->flags |= SYMBOL_NEW; + cs->flags &= ~def_flags; } break; case yes: - if (cs->def[S_DEF_USER].tri != no) { + if (cs->def[def].tri != no) { conf_warning("%s creates inconsistent choice state", sym->name); - cs->flags |= SYMBOL_NEW; + cs->flags &= ~def_flags; } else - cs->def[S_DEF_USER].val = sym; + cs->def[def].val = sym; break; } - cs->def[S_DEF_USER].tri = E_OR(cs->def[S_DEF_USER].tri, sym->def[S_DEF_USER].tri); + cs->def[def].tri = E_OR(cs->def[def].tri, sym->def[def].tri); } } fclose(in); @@ -281,11 +304,11 @@ int conf_read(const char *name) struct symbol *sym; struct property *prop; struct expr *e; - int i; + int i, flags; sym_change_count = 0; - if (conf_read_simple(name)) + if (conf_read_simple(name, S_DEF_USER)) return 1; for_all_symbols(i, sym) { @@ -314,15 +337,13 @@ int conf_read(const char *name) sym_ok: if (sym_has_value(sym) && !sym_is_choice_value(sym)) { if (sym->visible == no) - sym->flags |= SYMBOL_NEW; + sym->flags &= ~SYMBOL_DEF_USER; switch (sym->type) { case S_STRING: case S_INT: case S_HEX: - if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val)) { - sym->flags |= SYMBOL_NEW; - sym->flags &= ~SYMBOL_VALID; - } + if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val)) + sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); default: break; } @@ -330,9 +351,11 @@ int conf_read(const char *name) if (!sym_is_choice(sym)) continue; prop = sym_get_choice_prop(sym); + flags = sym->flags; for (e = prop->expr; e; e = e->left.expr) if (e->right.sym->visible != no) - sym->flags |= e->right.sym->flags & SYMBOL_NEW; + flags &= e->right.sym->flags; + sym->flags |= flags & SYMBOL_DEF_USER; } sym_change_count += conf_warnings || conf_unsaved; diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h index 043859d426d..998cf4f656b 100644 --- a/scripts/kconfig/expr.h +++ b/scripts/kconfig/expr.h @@ -92,10 +92,14 @@ struct symbol { #define SYMBOL_OPTIONAL 0x0100 #define SYMBOL_WRITE 0x0200 #define SYMBOL_CHANGED 0x0400 -#define SYMBOL_NEW 0x0800 #define SYMBOL_AUTO 0x1000 #define SYMBOL_CHECKED 0x2000 #define SYMBOL_WARNED 0x8000 +#define SYMBOL_DEF 0x10000 +#define SYMBOL_DEF_USER 0x10000 +#define SYMBOL_DEF2 0x20000 +#define SYMBOL_DEF3 0x40000 +#define SYMBOL_DEF4 0x80000 #define SYMBOL_MAXLENGTH 256 #define SYMBOL_HASHSIZE 257 diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c index 9cb3e6a4755..7b0d3a93d5c 100644 --- a/scripts/kconfig/gconf.c +++ b/scripts/kconfig/gconf.c @@ -132,8 +132,6 @@ const char *dbg_print_flags(int val) strcat(buf, "write/"); if (val & SYMBOL_CHANGED) strcat(buf, "changed/"); - if (val & SYMBOL_NEW) - strcat(buf, "new/"); if (val & SYMBOL_AUTO) strcat(buf, "auto/"); @@ -1186,9 +1184,7 @@ static gchar **fill_row(struct menu *menu) row[COL_OPTION] = g_strdup_printf("%s %s", menu_get_prompt(menu), - sym ? (sym-> - flags & SYMBOL_NEW ? "(NEW)" : "") : - ""); + sym && sym_has_value(sym) ? "(NEW)" : ""); if (show_all && !menu_is_visible(menu)) row[COL_COLOR] = g_strdup("DarkGray"); diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h index 527f60c99c5..52c296e0440 100644 --- a/scripts/kconfig/lkc.h +++ b/scripts/kconfig/lkc.h @@ -137,7 +137,7 @@ static inline bool sym_is_optional(struct symbol *sym) static inline bool sym_has_value(struct symbol *sym) { - return sym->flags & SYMBOL_NEW ? false : true; + return sym->flags & SYMBOL_DEF_USER ? true : false; } #ifdef __cplusplus diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h index bd0fb1dc132..e195c455bfe 100644 --- a/scripts/kconfig/lkc_proto.h +++ b/scripts/kconfig/lkc_proto.h @@ -2,7 +2,7 @@ /* confdata.c */ P(conf_parse,void,(const char *name)); P(conf_read,int,(const char *name)); -P(conf_read_simple,int,(const char *name)); +P(conf_read_simple,int,(const char *name, int)); P(conf_write,int,(const char *name)); P(conf_write_autoconf,int,(void)); diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c index 4ea0050dcb1..78a60ba39e5 100644 --- a/scripts/kconfig/symbol.c +++ b/scripts/kconfig/symbol.c @@ -426,8 +426,8 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val) if (oldval != val && !sym_tristate_within_range(sym, val)) return false; - if (sym->flags & SYMBOL_NEW) { - sym->flags &= ~SYMBOL_NEW; + if (!(sym->flags & SYMBOL_DEF_USER)) { + sym->flags |= SYMBOL_DEF_USER; sym_set_changed(sym); } /* @@ -440,11 +440,11 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val) struct expr *e; cs->def[S_DEF_USER].val = sym; - cs->flags &= ~SYMBOL_NEW; + cs->flags |= SYMBOL_DEF_USER; prop = sym_get_choice_prop(cs); for (e = prop->expr; e; e = e->left.expr) { if (e->right.sym->visible != no) - e->right.sym->flags &= ~SYMBOL_NEW; + e->right.sym->flags |= SYMBOL_DEF_USER; } } @@ -591,8 +591,8 @@ bool sym_set_string_value(struct symbol *sym, const char *newval) if (!sym_string_within_range(sym, newval)) return false; - if (sym->flags & SYMBOL_NEW) { - sym->flags &= ~SYMBOL_NEW; + if (!(sym->flags & SYMBOL_DEF_USER)) { + sym->flags |= SYMBOL_DEF_USER; sym_set_changed(sym); } @@ -679,7 +679,6 @@ struct symbol *sym_lookup(const char *name, int isconst) memset(symbol, 0, sizeof(*symbol)); symbol->name = new_name; symbol->type = S_UNKNOWN; - symbol->flags = SYMBOL_NEW; if (isconst) symbol->flags |= SYMBOL_CONST; -- cgit v1.2.3 From 2e3646e51b2d6415549b310655df63e7e0d7a080 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:42 -0700 Subject: kconfig: integrate split config into silentoldconfig Now that kconfig can load multiple configurations, it becomes simple to integrate the split config step, by simply comparing the new .config file with the old auto.conf (and then saving the new auto.conf). A nice side effect is that this saves a bit of disk space and cache, as no data needs to be read from or saved into the splitted config files anymore (e.g. include/config is now 648KB instead of 5.2MB). Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- Makefile | 11 +- arch/arm/Makefile | 2 +- arch/sh/Makefile | 4 +- arch/xtensa/Makefile | 2 +- scripts/basic/Makefile | 6 +- scripts/basic/split-include.c | 226 ------------------------------------------ scripts/kconfig/confdata.c | 121 +++++++++++++++++++++- scripts/kconfig/expr.h | 3 +- 8 files changed, 129 insertions(+), 246 deletions(-) delete mode 100644 scripts/basic/split-include.c diff --git a/Makefile b/Makefile index b1610562a65..4b996c8fb70 100644 --- a/Makefile +++ b/Makefile @@ -418,7 +418,7 @@ ifeq ($(KBUILD_EXTMOD),) # Carefully list dependencies so we do not try to build scripts twice # in parrallel PHONY += scripts -scripts: scripts_basic include/config/MARKER +scripts: scripts_basic include/config/auto.conf $(Q)$(MAKE) $(build)=$(@) # Objects we will link into vmlinux / subdirs we need to visit @@ -787,7 +787,7 @@ endif prepare2: prepare3 outputmakefile prepare1: prepare2 include/linux/version.h include/asm \ - include/config/MARKER + include/config/auto.conf ifneq ($(KBUILD_MODULES),) $(Q)mkdir -p $(MODVERDIR) $(Q)rm -f $(MODVERDIR)/* @@ -815,13 +815,6 @@ include/asm: $(Q)if [ ! -d include ]; then mkdir -p include; fi; @ln -fsn asm-$(ARCH) $@ -# Split autoconf.h into include/linux/config/* - -include/config/MARKER: scripts/basic/split-include include/config/auto.conf - @echo ' SPLIT include/linux/autoconf.h -> include/config/*' - @scripts/basic/split-include include/linux/autoconf.h include/config - @touch $@ - # Generate some files # --------------------------------------------------------------------------- diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 6f8e84c1c1f..9791d870ae7 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -175,7 +175,7 @@ boot := arch/arm/boot # them changed. We use .arch to indicate when they were updated # last, otherwise make uses the target directory mtime. -include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER +include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)' ifneq ($(KBUILD_SRC),) $(Q)mkdir -p include/asm-arm diff --git a/arch/sh/Makefile b/arch/sh/Makefile index c72e17a96ee..e467a450662 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -147,7 +147,7 @@ endif # them changed. We use .arch and .mach to indicate when they were # updated last, otherwise make uses the target directory mtime. -include/asm-sh/.cpu: $(wildcard include/config/cpu/*.h) include/config/MARKER +include/asm-sh/.cpu: $(wildcard include/config/cpu/*.h) include/config/auto.conf @echo ' SYMLINK include/asm-sh/cpu -> include/asm-sh/$(cpuincdir-y)' $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi $(Q)ln -fsn $(incdir-prefix)$(cpuincdir-y) include/asm-sh/cpu @@ -157,7 +157,7 @@ include/asm-sh/.cpu: $(wildcard include/config/cpu/*.h) include/config/MARKER # don't, just reference the parent directory so the semantics are # kept roughly the same. -include/asm-sh/.mach: $(wildcard include/config/sh/*.h) include/config/MARKER +include/asm-sh/.mach: $(wildcard include/config/sh/*.h) include/config/auto.conf @echo -n ' SYMLINK include/asm-sh/mach -> ' $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi $(Q)if [ -d $(incdir-prefix)$(incdir-y) ]; then \ diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index 98fac8489ae..3a3a4c66ef8 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -71,7 +71,7 @@ archprepare: $(archinc)/.platform # Update machine cpu and platform symlinks if something which affects # them changed. -$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/MARKER +$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf @echo ' SYMLINK $(archinc)/xtensa/config -> $(archinc)/xtensa/config-$(CPU)' $(Q)mkdir -p $(archinc) $(Q)mkdir -p $(archinc)/xtensa diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile index f22e94c3a2d..2f60070f973 100644 --- a/scripts/basic/Makefile +++ b/scripts/basic/Makefile @@ -1,17 +1,15 @@ ### # Makefile.basic list the most basic programs used during the build process. # The programs listed herein is what is needed to do the basic stuff, -# such as splitting .config and fix dependency file. +# such as fix dependency file. # This initial step is needed to avoid files to be recompiled # when kernel configuration changes (which is what happens when # .config is included by main Makefile. # --------------------------------------------------------------------------- # fixdep: Used to generate dependency information during build process -# split-include: Divide all config symbols up in a number of files in -# include/config/... # docproc: Used in Documentation/docbook -hostprogs-y := fixdep split-include docproc +hostprogs-y := fixdep docproc always := $(hostprogs-y) # fixdep is needed to compile other host programs diff --git a/scripts/basic/split-include.c b/scripts/basic/split-include.c deleted file mode 100644 index 459c45276cb..00000000000 --- a/scripts/basic/split-include.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * split-include.c - * - * Copyright abandoned, Michael Chastain, . - * This is a C version of syncdep.pl by Werner Almesberger. - * - * This program takes autoconf.h as input and outputs a directory full - * of one-line include files, merging onto the old values. - * - * Think of the configuration options as key-value pairs. Then there - * are five cases: - * - * key old value new value action - * - * KEY-1 VALUE-1 VALUE-1 leave file alone - * KEY-2 VALUE-2A VALUE-2B write VALUE-2B into file - * KEY-3 - VALUE-3 write VALUE-3 into file - * KEY-4 VALUE-4 - write an empty file - * KEY-5 (empty) - leave old empty file alone - */ - -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#define ERROR_EXIT(strExit) \ - { \ - const int errnoSave = errno; \ - fprintf(stderr, "%s: ", str_my_name); \ - errno = errnoSave; \ - perror((strExit)); \ - exit(1); \ - } - - - -int main(int argc, const char * argv []) -{ - const char * str_my_name; - const char * str_file_autoconf; - const char * str_dir_config; - - FILE * fp_config; - FILE * fp_target; - FILE * fp_find; - - int buffer_size; - - char * line; - char * old_line; - char * list_target; - char * ptarget; - - struct stat stat_buf; - - /* Check arg count. */ - if (argc != 3) - { - fprintf(stderr, "%s: wrong number of arguments.\n", argv[0]); - exit(1); - } - - str_my_name = argv[0]; - str_file_autoconf = argv[1]; - str_dir_config = argv[2]; - - /* Find a buffer size. */ - if (stat(str_file_autoconf, &stat_buf) != 0) - ERROR_EXIT(str_file_autoconf); - buffer_size = 2 * stat_buf.st_size + 4096; - - /* Allocate buffers. */ - if ( (line = malloc(buffer_size)) == NULL - || (old_line = malloc(buffer_size)) == NULL - || (list_target = malloc(buffer_size)) == NULL ) - ERROR_EXIT(str_file_autoconf); - - /* Open autoconfig file. */ - if ((fp_config = fopen(str_file_autoconf, "r")) == NULL) - ERROR_EXIT(str_file_autoconf); - - /* Make output directory if needed. */ - if (stat(str_dir_config, &stat_buf) != 0) - { - if (mkdir(str_dir_config, 0755) != 0) - ERROR_EXIT(str_dir_config); - } - - /* Change to output directory. */ - if (chdir(str_dir_config) != 0) - ERROR_EXIT(str_dir_config); - - /* Put initial separator into target list. */ - ptarget = list_target; - *ptarget++ = '\n'; - - /* Read config lines. */ - while (fgets(line, buffer_size, fp_config)) - { - const char * str_config; - int is_same; - int itarget; - - if (line[0] != '#') - continue; - if ((str_config = strstr(line, "CONFIG_")) == NULL) - continue; - - /* Make the output file name. */ - str_config += sizeof("CONFIG_") - 1; - for (itarget = 0; !isspace(str_config[itarget]); itarget++) - { - int c = (unsigned char) str_config[itarget]; - if (isupper(c)) c = tolower(c); - if (c == '_') c = '/'; - ptarget[itarget] = c; - } - ptarget[itarget++] = '.'; - ptarget[itarget++] = 'h'; - ptarget[itarget++] = '\0'; - - /* Check for existing file. */ - is_same = 0; - if ((fp_target = fopen(ptarget, "r")) != NULL) - { - fgets(old_line, buffer_size, fp_target); - if (fclose(fp_target) != 0) - ERROR_EXIT(ptarget); - if (!strcmp(line, old_line)) - is_same = 1; - } - - if (!is_same) - { - /* Auto-create directories. */ - int islash; - for (islash = 0; islash < itarget; islash++) - { - if (ptarget[islash] == '/') - { - ptarget[islash] = '\0'; - if (stat(ptarget, &stat_buf) != 0 - && mkdir(ptarget, 0755) != 0) - ERROR_EXIT( ptarget ); - ptarget[islash] = '/'; - } - } - - /* Write the file. */ - if ((fp_target = fopen(ptarget, "w" )) == NULL) - ERROR_EXIT(ptarget); - fputs(line, fp_target); - if (ferror(fp_target) || fclose(fp_target) != 0) - ERROR_EXIT(ptarget); - } - - /* Update target list */ - ptarget += itarget; - *(ptarget-1) = '\n'; - } - - /* - * Close autoconfig file. - * Terminate the target list. - */ - if (fclose(fp_config) != 0) - ERROR_EXIT(str_file_autoconf); - *ptarget = '\0'; - - /* - * Fix up existing files which have no new value. - * This is Case 4 and Case 5. - * - * I re-read the tree and filter it against list_target. - * This is crude. But it avoids data copies. Also, list_target - * is compact and contiguous, so it easily fits into cache. - * - * Notice that list_target contains strings separated by \n, - * with a \n before the first string and after the last. - * fgets gives the incoming names a terminating \n. - * So by having an initial \n, strstr will find exact matches. - */ - - fp_find = popen("find * -type f -name \"*.h\" -print", "r"); - if (fp_find == 0) - ERROR_EXIT( "find" ); - - line[0] = '\n'; - while (fgets(line+1, buffer_size, fp_find)) - { - if (strstr(list_target, line) == NULL) - { - /* - * This is an old file with no CONFIG_* flag in autoconf.h. - */ - - /* First strip the \n. */ - line[strlen(line)-1] = '\0'; - - /* Grab size. */ - if (stat(line+1, &stat_buf) != 0) - ERROR_EXIT(line); - - /* If file is not empty, make it empty and give it a fresh date. */ - if (stat_buf.st_size != 0) - { - if ((fp_target = fopen(line+1, "w")) == NULL) - ERROR_EXIT(line); - if (fclose(fp_target) != 0) - ERROR_EXIT(line); - } - } - } - - if (pclose(fp_find) != 0) - ERROR_EXIT("find"); - - return 0; -} diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index ca693fcd023..e28cd0c2ca0 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -5,6 +5,7 @@ #include #include +#include #include #include #include @@ -520,6 +521,119 @@ int conf_write(const char *name) return 0; } +int conf_split_config(void) +{ + char *name, path[128]; + char *s, *d, c; + struct symbol *sym; + struct stat sb; + int res, i, fd; + + name = getenv("KCONFIG_AUTOCONFIG"); + if (!name) + name = "include/config/auto.conf"; + conf_read_simple(name, S_DEF_AUTO); + + if (chdir("include/config")) + return 1; + + res = 0; + for_all_symbols(i, sym) { + sym_calc_value(sym); + if ((sym->flags & SYMBOL_AUTO) || !sym->name) + continue; + if (sym->flags & SYMBOL_WRITE) { + if (sym->flags & SYMBOL_DEF_AUTO) { + /* + * symbol has old and new value, + * so compare them... + */ + switch (sym->type) { + case S_BOOLEAN: + case S_TRISTATE: + if (sym_get_tristate_value(sym) == + sym->def[S_DEF_AUTO].tri) + continue; + break; + case S_STRING: + case S_HEX: + case S_INT: + if (!strcmp(sym_get_string_value(sym), + sym->def[S_DEF_AUTO].val)) + continue; + break; + default: + break; + } + } else { + /* + * If there is no old value, only 'no' (unset) + * is allowed as new value. + */ + switch (sym->type) { + case S_BOOLEAN: + case S_TRISTATE: + if (sym_get_tristate_value(sym) == no) + continue; + break; + default: + break; + } + } + } else if (!(sym->flags & SYMBOL_DEF_AUTO)) + /* There is neither an old nor a new value. */ + continue; + /* else + * There is an old value, but no new value ('no' (unset) + * isn't saved in auto.conf, so the old value is always + * different from 'no'). + */ + + /* Replace all '_' and append ".h" */ + s = sym->name; + d = path; + while ((c = *s++)) { + c = tolower(c); + *d++ = (c == '_') ? '/' : c; + } + strcpy(d, ".h"); + + /* Assume directory path already exists. */ + fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); + if (fd == -1) { + if (errno != ENOENT) { + res = 1; + break; + } + /* + * Create directory components, + * unless they exist already. + */ + d = path; + while ((d = strchr(d, '/'))) { + *d = 0; + if (stat(path, &sb) && mkdir(path, 0755)) { + res = 1; + goto out; + } + *d++ = '/'; + } + /* Try it again. */ + fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); + if (fd == -1) { + res = 1; + break; + } + } + close(fd); + } +out: + if (chdir("../..")) + return 1; + + return res; +} + int conf_write_autoconf(void) { struct symbol *sym; @@ -529,8 +643,13 @@ int conf_write_autoconf(void) time_t now; int i, l; + sym_clear_all_valid(); + file_write_dep("include/config/auto.conf.cmd"); + if (conf_split_config()) + return 1; + out = fopen(".tmpconfig", "w"); if (!out) return 1; @@ -558,8 +677,6 @@ int conf_write_autoconf(void) "#define AUTOCONF_INCLUDED\n", sym_get_string_value(sym), ctime(&now)); - sym_clear_all_valid(); - for_all_symbols(i, sym) { sym_calc_value(sym); if (!(sym->flags & SYMBOL_WRITE) || !sym->name) diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h index 998cf4f656b..ffd42c7007e 100644 --- a/scripts/kconfig/expr.h +++ b/scripts/kconfig/expr.h @@ -65,6 +65,7 @@ enum symbol_type { enum { S_DEF_USER, /* main user value */ + S_DEF_AUTO, }; struct symbol { @@ -97,7 +98,7 @@ struct symbol { #define SYMBOL_WARNED 0x8000 #define SYMBOL_DEF 0x10000 #define SYMBOL_DEF_USER 0x10000 -#define SYMBOL_DEF2 0x20000 +#define SYMBOL_DEF_AUTO 0x20000 #define SYMBOL_DEF3 0x40000 #define SYMBOL_DEF4 0x80000 -- cgit v1.2.3 From f1d28fb043b325dad8944647a52b20287e59d8a1 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:43 -0700 Subject: kconfig: move .kernelrelease This moves the .kernelrelease file into include/config directory. Remove its generation from the config step, if the config step doesn't leave a proper .config behind, it triggers a call to silentoldconfig. Instead its generation can be done via proper dependencies. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- Makefile | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/Makefile b/Makefile index 4b996c8fb70..3c55de99ed3 100644 --- a/Makefile +++ b/Makefile @@ -309,8 +309,8 @@ CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common AFLAGS := -D__ASSEMBLY__ -# Read KERNELRELEASE from .kernelrelease (if it exists) -KERNELRELEASE = $(shell cat .kernelrelease 2> /dev/null) +# Read KERNELRELEASE from include/config/kernel.release (if it exists) +KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \ @@ -406,7 +406,6 @@ export KBUILD_DEFCONFIG config %config: scripts_basic outputmakefile FORCE $(Q)mkdir -p include/linux include/config $(Q)$(MAKE) $(build)=scripts/kconfig $@ - $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease else # =========================================================================== @@ -714,7 +713,7 @@ $(vmlinux-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ # Build the kernel release string -# The KERNELRELEASE is stored in a file named .kernelrelease +# The KERNELRELEASE is stored in a file named include/config/kernel.release # to be used when executing for example make install or make modules_install # # Take the contents of any files called localversion* and the config @@ -748,9 +747,9 @@ endif localver-full = $(localver)$(localver-auto) -# Store (new) KERNELRELASE string in .kernelrelease +# Store (new) KERNELRELASE string in include/config/kernel.release kernelrelease = $(KERNELVERSION)$(localver-full) -.kernelrelease: FORCE +include/config/kernel.release: include/config/auto.conf FORCE $(Q)rm -f $@ $(Q)echo $(kernelrelease) > $@ @@ -771,7 +770,7 @@ PHONY += prepare-all # and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) # 2) Create the include2 directory, used for the second asm symlink -prepare3: .kernelrelease +prepare3: include/config/kernel.release ifneq ($(KBUILD_SRC),) @echo ' Using $(srctree) as source for kernel' $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ @@ -834,7 +833,7 @@ define filechk_version.h ) endef -include/linux/version.h: $(srctree)/Makefile .config .kernelrelease FORCE +include/linux/version.h: $(srctree)/Makefile include/config/kernel.release FORCE $(call filechk,version.h) # --------------------------------------------------------------------------- @@ -930,7 +929,7 @@ CLEAN_FILES += vmlinux System.map \ MRPROPER_DIRS += include/config include2 MRPROPER_FILES += .config .config.old include/asm .version .old_version \ include/linux/autoconf.h include/linux/version.h \ - .kernelrelease Module.symvers tags TAGS cscope* + Module.symvers tags TAGS cscope* # clean - Delete most, but leave enough to build external modules # @@ -1253,8 +1252,8 @@ checkstack: $(PERL) $(src)/scripts/checkstack.pl $(ARCH) kernelrelease: - $(if $(wildcard .kernelrelease), $(Q)echo $(KERNELRELEASE), \ - $(error kernelrelease not valid - run 'make *config' to update it)) + $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ + $(error kernelrelease not valid - run 'make prepare' to update it)) kernelversion: @echo $(KERNELVERSION) -- cgit v1.2.3 From f6a88aa86027bdecfc74ef7c6bf6c68233e86bb3 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:44 -0700 Subject: kconfig: add symbol option config syntax This adds the general framework to the parser to define options for config symbols with a syntax like: config FOO option bar[="arg"] Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/lex.zconf.c_shipped | 91 ++-- scripts/kconfig/lkc.h | 5 + scripts/kconfig/menu.c | 4 + scripts/kconfig/zconf.gperf | 3 + scripts/kconfig/zconf.hash.c_shipped | 181 +++---- scripts/kconfig/zconf.tab.c_shipped | 920 +++++++++++++++++++++-------------- scripts/kconfig/zconf.y | 23 + 7 files changed, 735 insertions(+), 492 deletions(-) diff --git a/scripts/kconfig/lex.zconf.c_shipped b/scripts/kconfig/lex.zconf.c_shipped index 24e3c8cbb7a..800f8c71c40 100644 --- a/scripts/kconfig/lex.zconf.c_shipped +++ b/scripts/kconfig/lex.zconf.c_shipped @@ -8,7 +8,7 @@ #define FLEX_SCANNER #define YY_FLEX_MAJOR_VERSION 2 #define YY_FLEX_MINOR_VERSION 5 -#define YY_FLEX_SUBMINOR_VERSION 31 +#define YY_FLEX_SUBMINOR_VERSION 33 #if YY_FLEX_SUBMINOR_VERSION > 0 #define FLEX_BETA #endif @@ -30,7 +30,15 @@ /* C99 systems have . Non-C99 systems may or may not. */ -#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L +#if __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + #include typedef int8_t flex_int8_t; typedef uint8_t flex_uint8_t; @@ -134,6 +142,10 @@ typedef unsigned int flex_uint32_t; #define YY_BUF_SIZE 16384 #endif +/* The state buf must be large enough to hold one state per character in the main buffer. + */ +#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) + #ifndef YY_TYPEDEF_YY_BUFFER_STATE #define YY_TYPEDEF_YY_BUFFER_STATE typedef struct yy_buffer_state *YY_BUFFER_STATE; @@ -267,7 +279,7 @@ int zconfleng; /* Points to current character in buffer. */ static char *yy_c_buf_p = (char *) 0; -static int yy_init = 1; /* whether we need to initialize */ +static int yy_init = 0; /* whether we need to initialize */ static int yy_start = 0; /* start state number */ /* Flag which is used to allow zconfwrap()'s to do buffer switches @@ -820,6 +832,8 @@ void alloc_string(const char *str, int size) #define YY_EXTRA_TYPE void * #endif +static int yy_init_globals (void ); + /* Macros after this point can all be overridden by user definitions in * section 1. */ @@ -942,9 +956,9 @@ YY_DECL int str = 0; int ts, i; - if ( (yy_init) ) + if ( !(yy_init) ) { - (yy_init) = 0; + (yy_init) = 1; #ifdef YY_USER_INIT YY_USER_INIT; @@ -1452,7 +1466,7 @@ static int yy_get_next_buffer (void) else { - size_t num_to_read = + int num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; while ( num_to_read <= 0 ) @@ -1969,16 +1983,16 @@ YY_BUFFER_STATE zconf_scan_buffer (char * base, yy_size_t size ) /** Setup the input buffer state to scan a string. The next call to zconflex() will * scan from a @e copy of @a str. - * @param yy_str a NUL-terminated string to scan + * @param yystr a NUL-terminated string to scan * * @return the newly allocated buffer state object. * @note If you want to scan bytes that may contain NUL values, then use * zconf_scan_bytes() instead. */ -YY_BUFFER_STATE zconf_scan_string (yyconst char * yy_str ) +YY_BUFFER_STATE zconf_scan_string (yyconst char * yystr ) { - return zconf_scan_bytes(yy_str,strlen(yy_str) ); + return zconf_scan_bytes(yystr,strlen(yystr) ); } /** Setup the input buffer state to scan the given bytes. The next call to zconflex() will @@ -1988,7 +2002,7 @@ YY_BUFFER_STATE zconf_scan_string (yyconst char * yy_str ) * * @return the newly allocated buffer state object. */ -YY_BUFFER_STATE zconf_scan_bytes (yyconst char * bytes, int len ) +YY_BUFFER_STATE zconf_scan_bytes (yyconst char * yybytes, int _yybytes_len ) { YY_BUFFER_STATE b; char *buf; @@ -1996,15 +2010,15 @@ YY_BUFFER_STATE zconf_scan_bytes (yyconst char * bytes, int len ) int i; /* Get memory for full buffer, including space for trailing EOB's. */ - n = len + 2; + n = _yybytes_len + 2; buf = (char *) zconfalloc(n ); if ( ! buf ) YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_bytes()" ); - for ( i = 0; i < len; ++i ) - buf[i] = bytes[i]; + for ( i = 0; i < _yybytes_len; ++i ) + buf[i] = yybytes[i]; - buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR; + buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; b = zconf_scan_buffer(buf,n ); if ( ! b ) @@ -2125,6 +2139,34 @@ void zconfset_debug (int bdebug ) zconf_flex_debug = bdebug ; } +static int yy_init_globals (void) +{ + /* Initialization is the same as for the non-reentrant scanner. + * This function is called from zconflex_destroy(), so don't allocate here. + */ + + (yy_buffer_stack) = 0; + (yy_buffer_stack_top) = 0; + (yy_buffer_stack_max) = 0; + (yy_c_buf_p) = (char *) 0; + (yy_init) = 0; + (yy_start) = 0; + +/* Defined in main.c */ +#ifdef YY_STDINIT + zconfin = stdin; + zconfout = stdout; +#else + zconfin = (FILE *) 0; + zconfout = (FILE *) 0; +#endif + + /* For future reference: Set errno on error, since we are called by + * zconflex_init() + */ + return 0; +} + /* zconflex_destroy is for both reentrant and non-reentrant scanners. */ int zconflex_destroy (void) { @@ -2140,6 +2182,10 @@ int zconflex_destroy (void) zconffree((yy_buffer_stack) ); (yy_buffer_stack) = NULL; + /* Reset the globals. This is important in a non-reentrant scanner so the next time + * zconflex() is called, initialization will occur. */ + yy_init_globals( ); + return 0; } @@ -2151,7 +2197,7 @@ int zconflex_destroy (void) static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) { register int i; - for ( i = 0; i < n; ++i ) + for ( i = 0; i < n; ++i ) s1[i] = s2[i]; } #endif @@ -2160,7 +2206,7 @@ static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) static int yy_flex_strlen (yyconst char * s ) { register int n; - for ( n = 0; s[n]; ++n ) + for ( n = 0; s[n]; ++n ) ; return n; @@ -2191,19 +2237,6 @@ void zconffree (void * ptr ) #define YYTABLES_NAME "yytables" -#undef YY_NEW_FILE -#undef YY_FLUSH_BUFFER -#undef yy_set_bol -#undef yy_new_buffer -#undef yy_set_interactive -#undef yytext_ptr -#undef YY_DO_BEFORE_ACTION - -#ifdef YY_DECL_IS_OURS -#undef YY_DECL_IS_OURS -#undef YY_DECL -#endif - void zconf_starthelp(void) { new_string(); diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h index 52c296e0440..8e89d342889 100644 --- a/scripts/kconfig/lkc.h +++ b/scripts/kconfig/lkc.h @@ -40,6 +40,10 @@ extern "C" { #define TF_COMMAND 0x0001 #define TF_PARAM 0x0002 +#define TF_OPTION 0x0004 + +#define T_OPT_MODULES 1 +#define T_OPT_DEFCONFIG_LIST 2 struct kconf_id { int name; @@ -78,6 +82,7 @@ struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *e struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep); void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep); void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep); +void menu_add_option(int token, char *arg); void menu_finalize(struct menu *parent); void menu_set_type(int type); diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index 0fce20cb7f3..151ef2168a2 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -152,6 +152,10 @@ void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep) menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep); } +void menu_add_option(int token, char *arg) +{ +} + static int menu_range_valid_sym(struct symbol *sym, struct symbol *sym2) { return sym2->type == S_INT || sym2->type == S_HEX || diff --git a/scripts/kconfig/zconf.gperf b/scripts/kconfig/zconf.gperf index b03220600b3..9b44c80dd89 100644 --- a/scripts/kconfig/zconf.gperf +++ b/scripts/kconfig/zconf.gperf @@ -39,5 +39,8 @@ string, T_TYPE, TF_COMMAND, S_STRING select, T_SELECT, TF_COMMAND enable, T_SELECT, TF_COMMAND range, T_RANGE, TF_COMMAND +option, T_OPTION, TF_COMMAND on, T_ON, TF_PARAM +modules, T_OPT_MODULES, TF_OPTION +defconfig_list, T_OPT_DEFCONFIG_LIST,TF_OPTION %% diff --git a/scripts/kconfig/zconf.hash.c_shipped b/scripts/kconfig/zconf.hash.c_shipped index 345f0fc07ca..47c8b5babf3 100644 --- a/scripts/kconfig/zconf.hash.c_shipped +++ b/scripts/kconfig/zconf.hash.c_shipped @@ -53,10 +53,10 @@ kconf_id_hash (register const char *str, register unsigned int len) 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, - 47, 47, 47, 47, 47, 47, 47, 25, 10, 15, - 0, 0, 5, 47, 0, 0, 47, 47, 0, 10, - 0, 20, 20, 20, 5, 0, 0, 20, 47, 47, - 20, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 25, 30, 15, + 0, 15, 0, 47, 5, 15, 47, 47, 30, 20, + 5, 0, 25, 15, 0, 0, 10, 35, 47, 47, + 5, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, @@ -88,69 +88,75 @@ kconf_id_hash (register const char *str, register unsigned int len) struct kconf_id_strings_t { - char kconf_id_strings_str2[sizeof("if")]; - char kconf_id_strings_str3[sizeof("int")]; - char kconf_id_strings_str4[sizeof("help")]; - char kconf_id_strings_str5[sizeof("endif")]; - char kconf_id_strings_str6[sizeof("select")]; - char kconf_id_strings_str7[sizeof("endmenu")]; - char kconf_id_strings_str8[sizeof("tristate")]; - char kconf_id_strings_str9[sizeof("endchoice")]; + char kconf_id_strings_str2[sizeof("on")]; + char kconf_id_strings_str6[sizeof("string")]; + char kconf_id_strings_str7[sizeof("default")]; + char kconf_id_strings_str8[sizeof("def_bool")]; char kconf_id_strings_str10[sizeof("range")]; - char kconf_id_strings_str11[sizeof("string")]; - char kconf_id_strings_str12[sizeof("default")]; - char kconf_id_strings_str13[sizeof("def_bool")]; - char kconf_id_strings_str14[sizeof("menu")]; - char kconf_id_strings_str16[sizeof("def_boolean")]; - char kconf_id_strings_str17[sizeof("def_tristate")]; - char kconf_id_strings_str18[sizeof("mainmenu")]; - char kconf_id_strings_str20[sizeof("menuconfig")]; - char kconf_id_strings_str21[sizeof("config")]; - char kconf_id_strings_str22[sizeof("on")]; - char kconf_id_strings_str23[sizeof("hex")]; - char kconf_id_strings_str26[sizeof("source")]; - char kconf_id_strings_str27[sizeof("depends")]; - char kconf_id_strings_str28[sizeof("optional")]; - char kconf_id_strings_str31[sizeof("enable")]; - char kconf_id_strings_str32[sizeof("comment")]; - char kconf_id_strings_str33[sizeof("requires")]; + char kconf_id_strings_str11[sizeof("def_boolean")]; + char kconf_id_strings_str12[sizeof("def_tristate")]; + char kconf_id_strings_str13[sizeof("hex")]; + char kconf_id_strings_str14[sizeof("defconfig_list")]; + char kconf_id_strings_str16[sizeof("option")]; + char kconf_id_strings_str17[sizeof("if")]; + char kconf_id_strings_str18[sizeof("optional")]; + char kconf_id_strings_str20[sizeof("endif")]; + char kconf_id_strings_str21[sizeof("choice")]; + char kconf_id_strings_str22[sizeof("endmenu")]; + char kconf_id_strings_str23[sizeof("requires")]; + char kconf_id_strings_str24[sizeof("endchoice")]; + char kconf_id_strings_str26[sizeof("config")]; + char kconf_id_strings_str27[sizeof("modules")]; + char kconf_id_strings_str28[sizeof("int")]; + char kconf_id_strings_str29[sizeof("menu")]; + char kconf_id_strings_str31[sizeof("prompt")]; + char kconf_id_strings_str32[sizeof("depends")]; + char kconf_id_strings_str33[sizeof("tristate")]; char kconf_id_strings_str34[sizeof("bool")]; + char kconf_id_strings_str35[sizeof("menuconfig")]; + char kconf_id_strings_str36[sizeof("select")]; char kconf_id_strings_str37[sizeof("boolean")]; - char kconf_id_strings_str41[sizeof("choice")]; - char kconf_id_strings_str46[sizeof("prompt")]; + char kconf_id_strings_str39[sizeof("help")]; + char kconf_id_strings_str41[sizeof("source")]; + char kconf_id_strings_str42[sizeof("comment")]; + char kconf_id_strings_str43[sizeof("mainmenu")]; + char kconf_id_strings_str46[sizeof("enable")]; }; static struct kconf_id_strings_t kconf_id_strings_contents = { - "if", - "int", - "help", - "endif", - "select", - "endmenu", - "tristate", - "endchoice", - "range", + "on", "string", "default", "def_bool", - "menu", + "range", "def_boolean", "def_tristate", - "mainmenu", - "menuconfig", - "config", - "on", "hex", - "source", - "depends", + "defconfig_list", + "option", + "if", "optional", - "enable", - "comment", + "endif", + "choice", + "endmenu", "requires", + "endchoice", + "config", + "modules", + "int", + "menu", + "prompt", + "depends", + "tristate", "bool", + "menuconfig", + "select", "boolean", - "choice", - "prompt" + "help", + "source", + "comment", + "mainmenu", + "enable" }; #define kconf_id_strings ((const char *) &kconf_id_strings_contents) #ifdef __GNUC__ @@ -161,9 +167,9 @@ kconf_id_lookup (register const char *str, register unsigned int len) { enum { - TOTAL_KEYWORDS = 30, + TOTAL_KEYWORDS = 33, MIN_WORD_LENGTH = 2, - MAX_WORD_LENGTH = 12, + MAX_WORD_LENGTH = 14, MIN_HASH_VALUE = 2, MAX_HASH_VALUE = 46 }; @@ -171,43 +177,48 @@ kconf_id_lookup (register const char *str, register unsigned int len) static struct kconf_id wordlist[] = { {-1}, {-1}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str2, T_IF, TF_COMMAND|TF_PARAM}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str3, T_TYPE, TF_COMMAND, S_INT}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str4, T_HELP, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str5, T_ENDIF, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str6, T_SELECT, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str7, T_ENDMENU, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str8, T_TYPE, TF_COMMAND, S_TRISTATE}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str9, T_ENDCHOICE, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str2, T_ON, TF_PARAM}, + {-1}, {-1}, {-1}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str6, T_TYPE, TF_COMMAND, S_STRING}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str7, T_DEFAULT, TF_COMMAND, S_UNKNOWN}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str8, T_DEFAULT, TF_COMMAND, S_BOOLEAN}, + {-1}, {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str10, T_RANGE, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str11, T_TYPE, TF_COMMAND, S_STRING}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str12, T_DEFAULT, TF_COMMAND, S_UNKNOWN}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str13, T_DEFAULT, TF_COMMAND, S_BOOLEAN}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str14, T_MENU, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str11, T_DEFAULT, TF_COMMAND, S_BOOLEAN}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str12, T_DEFAULT, TF_COMMAND, S_TRISTATE}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str13, T_TYPE, TF_COMMAND, S_HEX}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str14, T_OPT_DEFCONFIG_LIST,TF_OPTION}, {-1}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str16, T_DEFAULT, TF_COMMAND, S_BOOLEAN}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str17, T_DEFAULT, TF_COMMAND, S_TRISTATE}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str18, T_MAINMENU, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str16, T_OPTION, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str17, T_IF, TF_COMMAND|TF_PARAM}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str18, T_OPTIONAL, TF_COMMAND}, {-1}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str20, T_MENUCONFIG, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str21, T_CONFIG, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str22, T_ON, TF_PARAM}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str23, T_TYPE, TF_COMMAND, S_HEX}, - {-1}, {-1}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str26, T_SOURCE, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str27, T_DEPENDS, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str28, T_OPTIONAL, TF_COMMAND}, - {-1}, {-1}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str31, T_SELECT, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str32, T_COMMENT, TF_COMMAND}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str33, T_REQUIRES, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str20, T_ENDIF, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str21, T_CHOICE, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str22, T_ENDMENU, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str23, T_REQUIRES, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str24, T_ENDCHOICE, TF_COMMAND}, + {-1}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str26, T_CONFIG, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str27, T_OPT_MODULES, TF_OPTION}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str28, T_TYPE, TF_COMMAND, S_INT}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str29, T_MENU, TF_COMMAND}, + {-1}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str31, T_PROMPT, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str32, T_DEPENDS, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str33, T_TYPE, TF_COMMAND, S_TRISTATE}, {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str34, T_TYPE, TF_COMMAND, S_BOOLEAN}, - {-1}, {-1}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str35, T_MENUCONFIG, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str36, T_SELECT, TF_COMMAND}, {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str37, T_TYPE, TF_COMMAND, S_BOOLEAN}, - {-1}, {-1}, {-1}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str41, T_CHOICE, TF_COMMAND}, - {-1}, {-1}, {-1}, {-1}, - {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str46, T_PROMPT, TF_COMMAND} + {-1}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str39, T_HELP, TF_COMMAND}, + {-1}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str41, T_SOURCE, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str42, T_COMMENT, TF_COMMAND}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str43, T_MAINMENU, TF_COMMAND}, + {-1}, {-1}, + {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str46, T_SELECT, TF_COMMAND} }; if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH) diff --git a/scripts/kconfig/zconf.tab.c_shipped b/scripts/kconfig/zconf.tab.c_shipped index ea7755da82f..137426e507e 100644 --- a/scripts/kconfig/zconf.tab.c_shipped +++ b/scripts/kconfig/zconf.tab.c_shipped @@ -1,7 +1,7 @@ -/* A Bison parser, made by GNU Bison 2.0. */ +/* A Bison parser, made by GNU Bison 2.1. */ /* Skeleton parser for Yacc-like parsing with Bison, - Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -15,8 +15,8 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. */ /* As a special exception, when this file is copied by Bison into a Bison output file, you may use that output file without restriction. @@ -36,6 +36,9 @@ /* Identify Bison output. */ #define YYBISON 1 +/* Bison version. */ +#define YYBISON_VERSION "2.1" + /* Skeleton name. */ #define YYSKELETON_NAME "yacc.c" @@ -82,19 +85,21 @@ T_DEFAULT = 276, T_SELECT = 277, T_RANGE = 278, - T_ON = 279, - T_WORD = 280, - T_WORD_QUOTE = 281, - T_UNEQUAL = 282, - T_CLOSE_PAREN = 283, - T_OPEN_PAREN = 284, - T_EOL = 285, - T_OR = 286, - T_AND = 287, - T_EQUAL = 288, - T_NOT = 289 + T_OPTION = 279, + T_ON = 280, + T_WORD = 281, + T_WORD_QUOTE = 282, + T_UNEQUAL = 283, + T_CLOSE_PAREN = 284, + T_OPEN_PAREN = 285, + T_EOL = 286, + T_OR = 287, + T_AND = 288, + T_EQUAL = 289, + T_NOT = 290 }; #endif +/* Tokens. */ #define T_MAINMENU 258 #define T_MENU 259 #define T_ENDMENU 260 @@ -116,17 +121,18 @@ #define T_DEFAULT 276 #define T_SELECT 277 #define T_RANGE 278 -#define T_ON 279 -#define T_WORD 280 -#define T_WORD_QUOTE 281 -#define T_UNEQUAL 282 -#define T_CLOSE_PAREN 283 -#define T_OPEN_PAREN 284 -#define T_EOL 285 -#define T_OR 286 -#define T_AND 287 -#define T_EQUAL 288 -#define T_NOT 289 +#define T_OPTION 279 +#define T_ON 280 +#define T_WORD 281 +#define T_WORD_QUOTE 282 +#define T_UNEQUAL 283 +#define T_CLOSE_PAREN 284 +#define T_OPEN_PAREN 285 +#define T_EOL 286 +#define T_OR 287 +#define T_AND 288 +#define T_EQUAL 289 +#define T_NOT 290 @@ -187,6 +193,11 @@ static struct menu *current_menu, *current_entry; # define YYERROR_VERBOSE 0 #endif +/* Enabling the token table. */ +#ifndef YYTOKEN_TABLE +# define YYTOKEN_TABLE 0 +#endif + #if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) typedef union YYSTYPE { @@ -197,7 +208,7 @@ typedef union YYSTYPE { struct menu *menu; struct kconf_id *id; } YYSTYPE; -/* Line 190 of yacc.c. */ +/* Line 196 of yacc.c. */ # define yystype YYSTYPE /* obsolescent; will be withdrawn */ # define YYSTYPE_IS_DECLARED 1 @@ -209,17 +220,36 @@ typedef union YYSTYPE { /* Copy the second part of user declarations. */ -/* Line 213 of yacc.c. */ +/* Line 219 of yacc.c. */ -#if ! defined (yyoverflow) || YYERROR_VERBOSE +#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) +# define YYSIZE_T __SIZE_TYPE__ +#endif +#if ! defined (YYSIZE_T) && defined (size_t) +# define YYSIZE_T size_t +#endif +#if ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus)) +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +#endif +#if ! defined (YYSIZE_T) +# define YYSIZE_T unsigned int +#endif -# ifndef YYFREE -# define YYFREE free +#ifndef YY_ +# if YYENABLE_NLS +# if ENABLE_NLS +# include /* INFRINGES ON USER NAME SPACE */ +# define YY_(msgid) dgettext ("bison-runtime", msgid) +# endif # endif -# ifndef YYMALLOC -# define YYMALLOC malloc +# ifndef YY_ +# define YY_(msgid) msgid # endif +#endif + +#if ! defined (yyoverflow) || YYERROR_VERBOSE /* The parser invokes alloca or malloc; define the necessary symbols. */ @@ -229,6 +259,10 @@ typedef union YYSTYPE { # define YYSTACK_ALLOC __builtin_alloca # else # define YYSTACK_ALLOC alloca +# if defined (__STDC__) || defined (__cplusplus) +# include /* INFRINGES ON USER NAME SPACE */ +# define YYINCLUDED_STDLIB_H +# endif # endif # endif # endif @@ -236,13 +270,39 @@ typedef union YYSTYPE { # ifdef YYSTACK_ALLOC /* Pacify GCC's `empty if-body' warning. */ # define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) -# else -# if defined (__STDC__) || defined (__cplusplus) -# include /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t +# ifndef YYSTACK_ALLOC_MAXIMUM + /* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2005 */ # endif +# else # define YYSTACK_ALLOC YYMALLOC # define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM ((YYSIZE_T) -1) +# endif +# ifdef __cplusplus +extern "C" { +# endif +# ifndef YYMALLOC +# define YYMALLOC malloc +# if (! defined (malloc) && ! defined (YYINCLUDED_STDLIB_H) \ + && (defined (__STDC__) || defined (__cplusplus))) +void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifndef YYFREE +# define YYFREE free +# if (! defined (free) && ! defined (YYINCLUDED_STDLIB_H) \ + && (defined (__STDC__) || defined (__cplusplus))) +void free (void *); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifdef __cplusplus +} +# endif # endif #endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ @@ -277,7 +337,7 @@ union yyalloc # define YYCOPY(To, From, Count) \ do \ { \ - register YYSIZE_T yyi; \ + YYSIZE_T yyi; \ for (yyi = 0; yyi < (Count); yyi++) \ (To)[yyi] = (From)[yyi]; \ } \ @@ -312,22 +372,22 @@ union yyalloc /* YYFINAL -- State number of the termination state. */ #define YYFINAL 3 /* YYLAST -- Last index in YYTABLE. */ -#define YYLAST 264 +#define YYLAST 275 /* YYNTOKENS -- Number of terminals. */ -#define YYNTOKENS 35 +#define YYNTOKENS 36 /* YYNNTS -- Number of nonterminals. */ -#define YYNNTS 42 +#define YYNNTS 45 /* YYNRULES -- Number of rules. */ -#define YYNRULES 104 +#define YYNRULES 110 /* YYNRULES -- Number of states. */ -#define YYNSTATES 175 +#define YYNSTATES 183 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ #define YYUNDEFTOK 2 -#define YYMAXUTOK 289 +#define YYMAXUTOK 290 -#define YYTRANSLATE(YYX) \ +#define YYTRANSLATE(YYX) \ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) /* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ @@ -361,7 +421,8 @@ static const unsigned char yytranslate[] = 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 27, 28, 29, 30, 31, 32, 33, 34 + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, + 35 }; #if YYDEBUG @@ -372,72 +433,75 @@ static const unsigned short int yyprhs[] = 0, 0, 3, 5, 6, 9, 12, 15, 20, 23, 28, 33, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 67, 70, 74, 77, - 81, 84, 85, 88, 91, 94, 97, 100, 104, 109, - 114, 119, 125, 128, 131, 133, 137, 138, 141, 144, - 147, 150, 153, 158, 162, 165, 170, 171, 174, 178, - 180, 184, 185, 188, 191, 194, 198, 201, 203, 207, - 208, 211, 214, 217, 221, 225, 228, 231, 234, 235, - 238, 241, 244, 249, 253, 257, 258, 261, 263, 265, - 268, 271, 274, 276, 279, 280, 283, 285, 289, 293, - 297, 300, 304, 308, 310 + 81, 84, 85, 88, 91, 94, 97, 100, 103, 107, + 112, 117, 122, 128, 132, 133, 137, 138, 141, 144, + 147, 149, 153, 154, 157, 160, 163, 166, 169, 174, + 178, 181, 186, 187, 190, 194, 196, 200, 201, 204, + 207, 210, 214, 217, 219, 223, 224, 227, 230, 233, + 237, 241, 244, 247, 250, 251, 254, 257, 260, 265, + 269, 273, 274, 277, 279, 281, 284, 287, 290, 292, + 295, 296, 299, 301, 305, 309, 313, 316, 320, 324, + 326 }; /* YYRHS -- A `-1'-separated list of the rules' RHS. */ static const yysigned_char yyrhs[] = { - 36, 0, -1, 37, -1, -1, 37, 39, -1, 37, - 50, -1, 37, 61, -1, 37, 3, 71, 73, -1, - 37, 72, -1, 37, 25, 1, 30, -1, 37, 38, - 1, 30, -1, 37, 1, 30, -1, 16, -1, 19, + 37, 0, -1, 38, -1, -1, 38, 40, -1, 38, + 54, -1, 38, 65, -1, 38, 3, 75, 77, -1, + 38, 76, -1, 38, 26, 1, 31, -1, 38, 39, + 1, 31, -1, 38, 1, 31, -1, 16, -1, 19, -1, 20, -1, 22, -1, 18, -1, 23, -1, 21, - -1, 30, -1, 56, -1, 65, -1, 42, -1, 44, - -1, 63, -1, 25, 1, 30, -1, 1, 30, -1, - 10, 25, 30, -1, 41, 45, -1, 11, 25, 30, - -1, 43, 45, -1, -1, 45, 46, -1, 45, 69, - -1, 45, 67, -1, 45, 40, -1, 45, 30, -1, - 20, 70, 30, -1, 19, 71, 74, 30, -1, 21, - 75, 74, 30, -1, 22, 25, 74, 30, -1, 23, - 76, 76, 74, 30, -1, 7, 30, -1, 47, 51, - -1, 72, -1, 48, 53, 49, -1, -1, 51, 52, - -1, 51, 69, -1, 51, 67, -1, 51, 30, -1, - 51, 40, -1, 19, 71, 74, 30, -1, 20, 70, - 30, -1, 18, 30, -1, 21, 25, 74, 30, -1, - -1, 53, 39, -1, 14, 75, 73, -1, 72, -1, - 54, 57, 55, -1, -1, 57, 39, -1, 57, 61, - -1, 57, 50, -1, 4, 71, 30, -1, 58, 68, - -1, 72, -1, 59, 62, 60, -1, -1, 62, 39, - -1, 62, 61, -1, 62, 50, -1, 6, 71, 30, - -1, 9, 71, 30, -1, 64, 68, -1, 12, 30, - -1, 66, 13, -1, -1, 68, 69, -1, 68, 30, - -1, 68, 40, -1, 16, 24, 75, 30, -1, 16, - 75, 30, -1, 17, 75, 30, -1, -1, 71, 74, - -1, 25, -1, 26, -1, 5, 30, -1, 8, 30, - -1, 15, 30, -1, 30, -1, 73, 30, -1, -1, - 14, 75, -1, 76, -1, 76, 33, 76, -1, 76, - 27, 76, -1, 29, 75, 28, -1, 34, 75, -1, - 75, 31, 75, -1, 75, 32, 75, -1, 25, -1, - 26, -1 + -1, 31, -1, 60, -1, 69, -1, 43, -1, 45, + -1, 67, -1, 26, 1, 31, -1, 1, 31, -1, + 10, 26, 31, -1, 42, 46, -1, 11, 26, 31, + -1, 44, 46, -1, -1, 46, 47, -1, 46, 48, + -1, 46, 73, -1, 46, 71, -1, 46, 41, -1, + 46, 31, -1, 20, 74, 31, -1, 19, 75, 78, + 31, -1, 21, 79, 78, 31, -1, 22, 26, 78, + 31, -1, 23, 80, 80, 78, 31, -1, 24, 49, + 31, -1, -1, 49, 26, 50, -1, -1, 34, 75, + -1, 7, 31, -1, 51, 55, -1, 76, -1, 52, + 57, 53, -1, -1, 55, 56, -1, 55, 73, -1, + 55, 71, -1, 55, 31, -1, 55, 41, -1, 19, + 75, 78, 31, -1, 20, 74, 31, -1, 18, 31, + -1, 21, 26, 78, 31, -1, -1, 57, 40, -1, + 14, 79, 77, -1, 76, -1, 58, 61, 59, -1, + -1, 61, 40, -1, 61, 65, -1, 61, 54, -1, + 4, 75, 31, -1, 62, 72, -1, 76, -1, 63, + 66, 64, -1, -1, 66, 40, -1, 66, 65, -1, + 66, 54, -1, 6, 75, 31, -1, 9, 75, 31, + -1, 68, 72, -1, 12, 31, -1, 70, 13, -1, + -1, 72, 73, -1, 72, 31, -1, 72, 41, -1, + 16, 25, 79, 31, -1, 16, 79, 31, -1, 17, + 79, 31, -1, -1, 75, 78, -1, 26, -1, 27, + -1, 5, 31, -1, 8, 31, -1, 15, 31, -1, + 31, -1, 77, 31, -1, -1, 14, 79, -1, 80, + -1, 80, 34, 80, -1, 80, 28, 80, -1, 30, + 79, 29, -1, 35, 79, -1, 79, 32, 79, -1, + 79, 33, 79, -1, 26, -1, 27, -1 }; /* YYRLINE[YYN] -- source line where rule number YYN was defined. */ static const unsigned short int yyrline[] = { - 0, 103, 103, 105, 107, 108, 109, 110, 111, 112, - 113, 117, 121, 121, 121, 121, 121, 121, 121, 125, - 126, 127, 128, 129, 130, 134, 135, 141, 149, 155, - 163, 173, 175, 176, 177, 178, 179, 182, 190, 196, - 206, 212, 220, 229, 234, 242, 245, 247, 248, 249, - 250, 251, 254, 260, 271, 277, 287, 289, 294, 302, - 310, 313, 315, 316, 317, 322, 329, 334, 342, 345, - 347, 348, 349, 352, 360, 367, 374, 380, 387, 389, - 390, 391, 394, 399, 404, 412, 414, 419, 420, 423, - 424, 425, 429, 430, 433, 434, 437, 438, 439, 440, - 441, 442, 443, 446, 447 + 0, 105, 105, 107, 109, 110, 111, 112, 113, 114, + 115, 119, 123, 123, 123, 123, 123, 123, 123, 127, + 128, 129, 130, 131, 132, 136, 137, 143, 151, 157, + 165, 175, 177, 178, 179, 180, 181, 182, 185, 193, + 199, 209, 215, 221, 224, 226, 237, 238, 243, 252, + 257, 265, 268, 270, 271, 272, 273, 274, 277, 283, + 294, 300, 310, 312, 317, 325, 333, 336, 338, 339, + 340, 345, 352, 357, 365, 368, 370, 371, 372, 375, + 383, 390, 397, 403, 410, 412, 413, 414, 417, 422, + 427, 435, 437, 442, 443, 446, 447, 448, 452, 453, + 456, 457, 460, 461, 462, 463, 464, 465, 466, 469, + 470 }; #endif -#if YYDEBUG || YYERROR_VERBOSE -/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. +#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE +/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. First, the terminals, then, starting at YYNTOKENS, nonterminals. */ static const char *const yytname[] = { @@ -445,17 +509,18 @@ static const char *const yytname[] = "T_SOURCE", "T_CHOICE", "T_ENDCHOICE", "T_COMMENT", "T_CONFIG", "T_MENUCONFIG", "T_HELP", "T_HELPTEXT", "T_IF", "T_ENDIF", "T_DEPENDS", "T_REQUIRES", "T_OPTIONAL", "T_PROMPT", "T_TYPE", "T_DEFAULT", - "T_SELECT", "T_RANGE", "T_ON", "T_WORD", "T_WORD_QUOTE", "T_UNEQUAL", - "T_CLOSE_PAREN", "T_OPEN_PAREN", "T_EOL", "T_OR", "T_AND", "T_EQUAL", - "T_NOT", "$accept", "input", "stmt_list", "option_name", "common_stmt", - "option_error", "config_entry_start", "config_stmt", + "T_SELECT", "T_RANGE", "T_OPTION", "T_ON", "T_WORD", "T_WORD_QUOTE", + "T_UNEQUAL", "T_CLOSE_PAREN", "T_OPEN_PAREN", "T_EOL", "T_OR", "T_AND", + "T_EQUAL", "T_NOT", "$accept", "input", "stmt_list", "option_name", + "common_stmt", "option_error", "config_entry_start", "config_stmt", "menuconfig_entry_start", "menuconfig_stmt", "config_option_list", - "config_option", "choice", "choice_entry", "choice_end", "choice_stmt", - "choice_option_list", "choice_option", "choice_block", "if_entry", - "if_end", "if_stmt", "if_block", "menu", "menu_entry", "menu_end", - "menu_stmt", "menu_block", "source_stmt", "comment", "comment_stmt", - "help_start", "help", "depends_list", "depends", "prompt_stmt_opt", - "prompt", "end", "nl", "if_expr", "expr", "symbol", 0 + "config_option", "symbol_option", "symbol_option_list", + "symbol_option_arg", "choice", "choice_entry", "choice_end", + "choice_stmt", "choice_option_list", "choice_option", "choice_block", + "if_entry", "if_end", "if_stmt", "if_block", "menu", "menu_entry", + "menu_end", "menu_stmt", "menu_block", "source_stmt", "comment", + "comment_stmt", "help_start", "help", "depends_list", "depends", + "prompt_stmt_opt", "prompt", "end", "nl", "if_expr", "expr", "symbol", 0 }; #endif @@ -467,24 +532,25 @@ static const unsigned short int yytoknum[] = 0, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, - 285, 286, 287, 288, 289 + 285, 286, 287, 288, 289, 290 }; # endif /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ static const unsigned char yyr1[] = { - 0, 35, 36, 37, 37, 37, 37, 37, 37, 37, - 37, 37, 38, 38, 38, 38, 38, 38, 38, 39, - 39, 39, 39, 39, 39, 40, 40, 41, 42, 43, - 44, 45, 45, 45, 45, 45, 45, 46, 46, 46, - 46, 46, 47, 48, 49, 50, 51, 51, 51, 51, - 51, 51, 52, 52, 52, 52, 53, 53, 54, 55, - 56, 57, 57, 57, 57, 58, 59, 60, 61, 62, - 62, 62, 62, 63, 64, 65, 66, 67, 68, 68, - 68, 68, 69, 69, 69, 70, 70, 71, 71, 72, - 72, 72, 73, 73, 74, 74, 75, 75, 75, 75, - 75, 75, 75, 76, 76 + 0, 36, 37, 38, 38, 38, 38, 38, 38, 38, + 38, 38, 39, 39, 39, 39, 39, 39, 39, 40, + 40, 40, 40, 40, 40, 41, 41, 42, 43, 44, + 45, 46, 46, 46, 46, 46, 46, 46, 47, 47, + 47, 47, 47, 48, 49, 49, 50, 50, 51, 52, + 53, 54, 55, 55, 55, 55, 55, 55, 56, 56, + 56, 56, 57, 57, 58, 59, 60, 61, 61, 61, + 61, 62, 63, 64, 65, 66, 66, 66, 66, 67, + 68, 69, 70, 71, 72, 72, 72, 72, 73, 73, + 73, 74, 74, 75, 75, 76, 76, 76, 77, 77, + 78, 78, 79, 79, 79, 79, 79, 79, 79, 80, + 80 }; /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ @@ -493,14 +559,15 @@ static const unsigned char yyr2[] = 0, 2, 1, 0, 2, 2, 2, 4, 2, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 2, 3, 2, 3, - 2, 0, 2, 2, 2, 2, 2, 3, 4, 4, - 4, 5, 2, 2, 1, 3, 0, 2, 2, 2, - 2, 2, 4, 3, 2, 4, 0, 2, 3, 1, - 3, 0, 2, 2, 2, 3, 2, 1, 3, 0, - 2, 2, 2, 3, 3, 2, 2, 2, 0, 2, - 2, 2, 4, 3, 3, 0, 2, 1, 1, 2, - 2, 2, 1, 2, 0, 2, 1, 3, 3, 3, - 2, 3, 3, 1, 1 + 2, 0, 2, 2, 2, 2, 2, 2, 3, 4, + 4, 4, 5, 3, 0, 3, 0, 2, 2, 2, + 1, 3, 0, 2, 2, 2, 2, 2, 4, 3, + 2, 4, 0, 2, 3, 1, 3, 0, 2, 2, + 2, 3, 2, 1, 3, 0, 2, 2, 2, 3, + 3, 2, 2, 2, 0, 2, 2, 2, 4, 3, + 3, 0, 2, 1, 1, 2, 2, 2, 1, 2, + 0, 2, 1, 3, 3, 3, 2, 3, 3, 1, + 1 }; /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state @@ -511,175 +578,164 @@ static const unsigned char yydefact[] = 3, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 16, 13, 14, 18, 15, 17, 0, 19, 0, 4, 31, 22, 31, - 23, 46, 56, 5, 61, 20, 78, 69, 6, 24, - 78, 21, 8, 11, 87, 88, 0, 0, 89, 0, - 42, 90, 0, 0, 0, 103, 104, 0, 0, 0, - 96, 91, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 92, 7, 65, 73, 74, 27, 29, 0, - 100, 0, 0, 58, 0, 0, 9, 10, 0, 0, - 0, 0, 0, 85, 0, 0, 0, 0, 36, 35, - 32, 0, 34, 33, 0, 0, 85, 0, 50, 51, - 47, 49, 48, 57, 45, 44, 62, 64, 60, 63, - 59, 80, 81, 79, 70, 72, 68, 71, 67, 93, - 99, 101, 102, 98, 97, 26, 76, 0, 0, 0, - 94, 0, 94, 94, 94, 0, 0, 77, 54, 94, - 0, 94, 0, 83, 84, 0, 0, 37, 86, 0, - 0, 94, 25, 0, 53, 0, 82, 95, 38, 39, - 40, 0, 52, 55, 41 + 23, 52, 62, 5, 67, 20, 84, 75, 6, 24, + 84, 21, 8, 11, 93, 94, 0, 0, 95, 0, + 48, 96, 0, 0, 0, 109, 110, 0, 0, 0, + 102, 97, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 98, 7, 71, 79, 80, 27, 29, 0, + 106, 0, 0, 64, 0, 0, 9, 10, 0, 0, + 0, 0, 0, 91, 0, 0, 0, 44, 0, 37, + 36, 32, 33, 0, 35, 34, 0, 0, 91, 0, + 56, 57, 53, 55, 54, 63, 51, 50, 68, 70, + 66, 69, 65, 86, 87, 85, 76, 78, 74, 77, + 73, 99, 105, 107, 108, 104, 103, 26, 82, 0, + 0, 0, 100, 0, 100, 100, 100, 0, 0, 0, + 83, 60, 100, 0, 100, 0, 89, 90, 0, 0, + 38, 92, 0, 0, 100, 46, 43, 25, 0, 59, + 0, 88, 101, 39, 40, 41, 0, 0, 45, 58, + 61, 42, 47 }; /* YYDEFGOTO[NTERM-NUM]. */ static const short int yydefgoto[] = { - -1, 1, 2, 25, 26, 99, 27, 28, 29, 30, - 64, 100, 31, 32, 114, 33, 66, 110, 67, 34, - 118, 35, 68, 36, 37, 126, 38, 70, 39, 40, - 41, 101, 102, 69, 103, 141, 142, 42, 73, 156, - 59, 60 + -1, 1, 2, 25, 26, 100, 27, 28, 29, 30, + 64, 101, 102, 148, 178, 31, 32, 116, 33, 66, + 112, 67, 34, 120, 35, 68, 36, 37, 128, 38, + 70, 39, 40, 41, 103, 104, 69, 105, 143, 144, + 42, 73, 159, 59, 60 }; /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing STATE-NUM. */ -#define YYPACT_NINF -78 +#define YYPACT_NINF -135 static const short int yypact[] = { - -78, 2, 159, -78, -21, 0, 0, -12, 0, 1, - 4, 0, 27, 38, 60, 58, -78, -78, -78, -78, - -78, -78, -78, 100, -78, 104, -78, -78, -78, -78, - -78, -78, -78, -78, -78, -78, -78, -78, -78, -78, - -78, -78, -78, -78, -78, -78, 86, 113, -78, 114, - -78, -78, 125, 127, 128, -78, -78, 60, 60, 210, - 65, -78, 141, 142, 39, 103, 182, 200, 6, 66, - 6, 131, -78, 146, -78, -78, -78, -78, -78, 196, - -78, 60, 60, 146, 40, 40, -78, -78, 155, 156, - -2, 60, 0, 0, 60, 105, 40, 194, -78, -78, - -78, 206, -78, -78, 183, 0, 0, 195, -78, -78, - -78, -78, -78, -78, -78, -78, -78, -78, -78, -78, - -78, -78, -78, -78, -78, -78, -78, -78, -78, -78, - -78, 197, -78, -78, -78, -78, -78, 60, 213, 216, - 212, 203, 212, 190, 212, 40, 208, -78, -78, 212, - 222, 212, 219, -78, -78, 60, 223, -78, -78, 224, - 225, 212, -78, 226, -78, 227, -78, 47, -78, -78, - -78, 228, -78, -78, -78 + -135, 2, 170, -135, -14, 56, 56, -8, 56, 24, + 67, 56, 7, 14, 62, 97, -135, -135, -135, -135, + -135, -135, -135, 156, -135, 166, -135, -135, -135, -135, + -135, -135, -135, -135, -135, -135, -135, -135, -135, -135, + -135, -135, -135, -135, -135, -135, 138, 151, -135, 152, + -135, -135, 163, 167, 176, -135, -135, 62, 62, 185, + -19, -135, 188, 190, 42, 103, 194, 85, 70, 222, + 70, 132, -135, 191, -135, -135, -135, -135, -135, 127, + -135, 62, 62, 191, 104, 104, -135, -135, 193, 203, + 9, 62, 56, 56, 62, 161, 104, -135, 196, -135, + -135, -135, -135, 233, -135, -135, 204, 56, 56, 221, + -135, -135, -135, -135, -135, -135, -135, -135, -135, -135, + -135, -135, -135, -135, -135, -135, -135, -135, -135, -135, + -135, -135, -135, 219, -135, -135, -135, -135, -135, 62, + 209, 212, 240, 224, 240, -1, 240, 104, 41, 225, + -135, -135, 240, 226, 240, 218, -135, -135, 62, 227, + -135, -135, 228, 229, 240, 230, -135, -135, 231, -135, + 232, -135, 112, -135, -135, -135, 234, 56, -135, -135, + -135, -135, -135 }; /* YYPGOTO[NTERM-NUM]. */ static const short int yypgoto[] = { - -78, -78, -78, -78, 164, -36, -78, -78, -78, -78, - 230, -78, -78, -78, -78, 29, -78, -78, -78, -78, - -78, -78, -78, -78, -78, -78, 59, -78, -78, -78, - -78, -78, 198, 220, 24, 157, -5, 169, 202, 74, - -53, -77 + -135, -135, -135, -135, 94, -45, -135, -135, -135, -135, + 237, -135, -135, -135, -135, -135, -135, -135, -54, -135, + -135, -135, -135, -135, -135, -135, -135, -135, -135, 1, + -135, -135, -135, -135, -135, 195, 235, -44, 159, -5, + 98, 210, -134, -53, -77 }; /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If positive, shift that token. If negative, reduce the rule which number is the opposite. If zero, do what YYDEFACT says. If YYTABLE_NINF, syntax error. */ -#define YYTABLE_NINF -76 +#define YYTABLE_NINF -82 static const short int yytable[] = { - 46, 47, 3, 49, 79, 80, 52, 133, 134, 43, - 6, 7, 8, 9, 10, 11, 12, 13, 48, 145, - 14, 15, 137, 55, 56, 44, 45, 57, 131, 132, - 109, 50, 58, 122, 51, 122, 24, 138, 139, -28, - 88, 143, -28, -28, -28, -28, -28, -28, -28, -28, - -28, 89, 53, -28, -28, 90, 91, -28, 92, 93, - 94, 95, 96, 54, 97, 55, 56, 88, 161, 98, - -66, -66, -66, -66, -66, -66, -66, -66, 81, 82, - -66, -66, 90, 91, 152, 55, 56, 140, 61, 57, - 112, 97, 84, 123, 58, 123, 121, 117, 85, 125, - 149, 62, 167, -30, 88, 63, -30, -30, -30, -30, - -30, -30, -30, -30, -30, 89, 72, -30, -30, 90, - 91, -30, 92, 93, 94, 95, 96, 119, 97, 127, - 144, -75, 88, 98, -75, -75, -75, -75, -75, -75, - -75, -75, -75, 74, 75, -75, -75, 90, 91, -75, - -75, -75, -75, -75, -75, 76, 97, 77, 78, -2, - 4, 121, 5, 6, 7, 8, 9, 10, 11, 12, - 13, 86, 87, 14, 15, 16, 129, 17, 18, 19, - 20, 21, 22, 88, 23, 135, 136, -43, -43, 24, - -43, -43, -43, -43, 89, 146, -43, -43, 90, 91, - 104, 105, 106, 107, 155, 7, 8, 97, 10, 11, - 12, 13, 108, 148, 14, 15, 158, 159, 160, 147, - 151, 81, 82, 163, 130, 165, 155, 81, 82, 82, - 24, 113, 116, 157, 124, 171, 115, 120, 162, 128, - 72, 81, 82, 153, 81, 82, 154, 81, 82, 166, - 81, 82, 164, 168, 169, 170, 172, 173, 174, 65, - 71, 83, 0, 150, 111 + 46, 47, 3, 49, 79, 80, 52, 135, 136, 84, + 161, 162, 163, 158, 119, 85, 127, 43, 168, 147, + 170, 111, 114, 48, 124, 125, 124, 125, 133, 134, + 176, 81, 82, 53, 139, 55, 56, 140, 141, 57, + 54, 145, -28, 88, 58, -28, -28, -28, -28, -28, + -28, -28, -28, -28, 89, 50, -28, -28, 90, 91, + -28, 92, 93, 94, 95, 96, 97, 165, 98, 121, + 164, 129, 166, 99, 6, 7, 8, 9, 10, 11, + 12, 13, 44, 45, 14, 15, 155, 142, 55, 56, + 7, 8, 57, 10, 11, 12, 13, 58, 51, 14, + 15, 24, 152, -30, 88, 172, -30, -30, -30, -30, + -30, -30, -30, -30, -30, 89, 24, -30, -30, 90, + 91, -30, 92, 93, 94, 95, 96, 97, 61, 98, + 55, 56, -81, 88, 99, -81, -81, -81, -81, -81, + -81, -81, -81, -81, 81, 82, -81, -81, 90, 91, + -81, -81, -81, -81, -81, -81, 132, 62, 98, 81, + 82, 115, 118, 123, 126, 117, 122, 63, 130, 72, + -2, 4, 182, 5, 6, 7, 8, 9, 10, 11, + 12, 13, 74, 75, 14, 15, 16, 146, 17, 18, + 19, 20, 21, 22, 76, 88, 23, 149, 77, -49, + -49, 24, -49, -49, -49, -49, 89, 78, -49, -49, + 90, 91, 106, 107, 108, 109, 72, 81, 82, 86, + 98, 87, 131, 88, 137, 110, -72, -72, -72, -72, + -72, -72, -72, -72, 138, 151, -72, -72, 90, 91, + 156, 81, 82, 157, 81, 82, 150, 154, 98, 171, + 81, 82, 82, 123, 158, 160, 167, 169, 173, 174, + 175, 113, 179, 180, 177, 181, 65, 153, 0, 83, + 0, 0, 0, 0, 0, 71 }; static const short int yycheck[] = { - 5, 6, 0, 8, 57, 58, 11, 84, 85, 30, - 4, 5, 6, 7, 8, 9, 10, 11, 30, 96, - 14, 15, 24, 25, 26, 25, 26, 29, 81, 82, - 66, 30, 34, 69, 30, 71, 30, 90, 91, 0, - 1, 94, 3, 4, 5, 6, 7, 8, 9, 10, - 11, 12, 25, 14, 15, 16, 17, 18, 19, 20, - 21, 22, 23, 25, 25, 25, 26, 1, 145, 30, - 4, 5, 6, 7, 8, 9, 10, 11, 31, 32, - 14, 15, 16, 17, 137, 25, 26, 92, 30, 29, - 66, 25, 27, 69, 34, 71, 30, 68, 33, 70, - 105, 1, 155, 0, 1, 1, 3, 4, 5, 6, - 7, 8, 9, 10, 11, 12, 30, 14, 15, 16, - 17, 18, 19, 20, 21, 22, 23, 68, 25, 70, - 25, 0, 1, 30, 3, 4, 5, 6, 7, 8, - 9, 10, 11, 30, 30, 14, 15, 16, 17, 18, - 19, 20, 21, 22, 23, 30, 25, 30, 30, 0, - 1, 30, 3, 4, 5, 6, 7, 8, 9, 10, - 11, 30, 30, 14, 15, 16, 30, 18, 19, 20, - 21, 22, 23, 1, 25, 30, 30, 5, 6, 30, - 8, 9, 10, 11, 12, 1, 14, 15, 16, 17, - 18, 19, 20, 21, 14, 5, 6, 25, 8, 9, - 10, 11, 30, 30, 14, 15, 142, 143, 144, 13, - 25, 31, 32, 149, 28, 151, 14, 31, 32, 32, - 30, 67, 68, 30, 70, 161, 67, 68, 30, 70, - 30, 31, 32, 30, 31, 32, 30, 31, 32, 30, - 31, 32, 30, 30, 30, 30, 30, 30, 30, 29, - 40, 59, -1, 106, 66 + 5, 6, 0, 8, 57, 58, 11, 84, 85, 28, + 144, 145, 146, 14, 68, 34, 70, 31, 152, 96, + 154, 66, 66, 31, 69, 69, 71, 71, 81, 82, + 164, 32, 33, 26, 25, 26, 27, 90, 91, 30, + 26, 94, 0, 1, 35, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 31, 14, 15, 16, 17, + 18, 19, 20, 21, 22, 23, 24, 26, 26, 68, + 147, 70, 31, 31, 4, 5, 6, 7, 8, 9, + 10, 11, 26, 27, 14, 15, 139, 92, 26, 27, + 5, 6, 30, 8, 9, 10, 11, 35, 31, 14, + 15, 31, 107, 0, 1, 158, 3, 4, 5, 6, + 7, 8, 9, 10, 11, 12, 31, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 31, 26, + 26, 27, 0, 1, 31, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 32, 33, 14, 15, 16, 17, + 18, 19, 20, 21, 22, 23, 29, 1, 26, 32, + 33, 67, 68, 31, 70, 67, 68, 1, 70, 31, + 0, 1, 177, 3, 4, 5, 6, 7, 8, 9, + 10, 11, 31, 31, 14, 15, 16, 26, 18, 19, + 20, 21, 22, 23, 31, 1, 26, 1, 31, 5, + 6, 31, 8, 9, 10, 11, 12, 31, 14, 15, + 16, 17, 18, 19, 20, 21, 31, 32, 33, 31, + 26, 31, 31, 1, 31, 31, 4, 5, 6, 7, + 8, 9, 10, 11, 31, 31, 14, 15, 16, 17, + 31, 32, 33, 31, 32, 33, 13, 26, 26, 31, + 32, 33, 33, 31, 14, 31, 31, 31, 31, 31, + 31, 66, 31, 31, 34, 31, 29, 108, -1, 59, + -1, -1, -1, -1, -1, 40 }; /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing symbol of state STATE-NUM. */ static const unsigned char yystos[] = { - 0, 36, 37, 0, 1, 3, 4, 5, 6, 7, + 0, 37, 38, 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 18, 19, 20, - 21, 22, 23, 25, 30, 38, 39, 41, 42, 43, - 44, 47, 48, 50, 54, 56, 58, 59, 61, 63, - 64, 65, 72, 30, 25, 26, 71, 71, 30, 71, - 30, 30, 71, 25, 25, 25, 26, 29, 34, 75, - 76, 30, 1, 1, 45, 45, 51, 53, 57, 68, - 62, 68, 30, 73, 30, 30, 30, 30, 30, 75, - 75, 31, 32, 73, 27, 33, 30, 30, 1, 12, - 16, 17, 19, 20, 21, 22, 23, 25, 30, 40, - 46, 66, 67, 69, 18, 19, 20, 21, 30, 40, - 52, 67, 69, 39, 49, 72, 39, 50, 55, 61, - 72, 30, 40, 69, 39, 50, 60, 61, 72, 30, - 28, 75, 75, 76, 76, 30, 30, 24, 75, 75, - 71, 70, 71, 75, 25, 76, 1, 13, 30, 71, - 70, 25, 75, 30, 30, 14, 74, 30, 74, 74, - 74, 76, 30, 74, 30, 74, 30, 75, 30, 30, - 30, 74, 30, 30, 30 + 21, 22, 23, 26, 31, 39, 40, 42, 43, 44, + 45, 51, 52, 54, 58, 60, 62, 63, 65, 67, + 68, 69, 76, 31, 26, 27, 75, 75, 31, 75, + 31, 31, 75, 26, 26, 26, 27, 30, 35, 79, + 80, 31, 1, 1, 46, 46, 55, 57, 61, 72, + 66, 72, 31, 77, 31, 31, 31, 31, 31, 79, + 79, 32, 33, 77, 28, 34, 31, 31, 1, 12, + 16, 17, 19, 20, 21, 22, 23, 24, 26, 31, + 41, 47, 48, 70, 71, 73, 18, 19, 20, 21, + 31, 41, 56, 71, 73, 40, 53, 76, 40, 54, + 59, 65, 76, 31, 41, 73, 40, 54, 64, 65, + 76, 31, 29, 79, 79, 80, 80, 31, 31, 25, + 79, 79, 75, 74, 75, 79, 26, 80, 49, 1, + 13, 31, 75, 74, 26, 79, 31, 31, 14, 78, + 31, 78, 78, 78, 80, 26, 31, 31, 78, 31, + 78, 31, 79, 31, 31, 31, 78, 34, 50, 31, + 31, 31, 75 }; -#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) -# define YYSIZE_T __SIZE_TYPE__ -#endif -#if ! defined (YYSIZE_T) && defined (size_t) -# define YYSIZE_T size_t -#endif -#if ! defined (YYSIZE_T) -# if defined (__STDC__) || defined (__cplusplus) -# include /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t -# endif -#endif -#if ! defined (YYSIZE_T) -# define YYSIZE_T unsigned int -#endif - #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) #define YYEMPTY (-2) @@ -709,8 +765,8 @@ do \ goto yybackup; \ } \ else \ - { \ - yyerror ("syntax error: cannot back up");\ + { \ + yyerror (YY_("syntax error: cannot back up")); \ YYERROR; \ } \ while (0) @@ -789,7 +845,7 @@ do { \ if (yydebug) \ { \ YYFPRINTF (stderr, "%s ", Title); \ - yysymprint (stderr, \ + yysymprint (stderr, \ Type, Value); \ YYFPRINTF (stderr, "\n"); \ } \ @@ -837,13 +893,13 @@ yy_reduce_print (yyrule) #endif { int yyi; - unsigned int yylno = yyrline[yyrule]; - YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ", + unsigned long int yylno = yyrline[yyrule]; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu), ", yyrule - 1, yylno); /* Print the symbols being reduced, and their result. */ for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) - YYFPRINTF (stderr, "%s ", yytname [yyrhs[yyi]]); - YYFPRINTF (stderr, "-> %s\n", yytname [yyr1[yyrule]]); + YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]); + YYFPRINTF (stderr, "-> %s\n", yytname[yyr1[yyrule]]); } # define YY_REDUCE_PRINT(Rule) \ @@ -872,7 +928,7 @@ int yydebug; if the built-in stack extension method is used). Do not make this value too large; the results are undefined if - SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH) + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) evaluated with infinite-precision integer arithmetic. */ #ifndef YYMAXDEPTH @@ -896,7 +952,7 @@ yystrlen (yystr) const char *yystr; # endif { - register const char *yys = yystr; + const char *yys = yystr; while (*yys++ != '\0') continue; @@ -921,8 +977,8 @@ yystpcpy (yydest, yysrc) const char *yysrc; # endif { - register char *yyd = yydest; - register const char *yys = yysrc; + char *yyd = yydest; + const char *yys = yysrc; while ((*yyd++ = *yys++) != '\0') continue; @@ -932,7 +988,55 @@ yystpcpy (yydest, yysrc) # endif # endif -#endif /* !YYERROR_VERBOSE */ +# ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T +yytnamerr (char *yyres, const char *yystr) +{ + if (*yystr == '"') + { + size_t yyn = 0; + char const *yyp = yystr; + + for (;;) + switch (*++yyp) + { + case '\'': + case ',': + goto do_not_strip_quotes; + + case '\\': + if (*++yyp != '\\') + goto do_not_strip_quotes; + /* Fall through. */ + default: + if (yyres) + yyres[yyn] = *yyp; + yyn++; + break; + + case '"': + if (yyres) + yyres[yyn] = '\0'; + return yyn; + } + do_not_strip_quotes: ; + } + + if (! yyres) + return yystrlen (yystr); + + return yystpcpy (yyres, yystr) - yyres; +} +# endif + +#endif /* YYERROR_VERBOSE */ @@ -998,7 +1102,7 @@ yydestruct (yymsg, yytype, yyvaluep) switch (yytype) { - case 48: /* choice_entry */ + case 52: /* "choice_entry" */ { fprintf(stderr, "%s:%d: missing end statement for this entry\n", @@ -1008,7 +1112,7 @@ yydestruct (yymsg, yytype, yyvaluep) }; break; - case 54: /* if_entry */ + case 58: /* "if_entry" */ { fprintf(stderr, "%s:%d: missing end statement for this entry\n", @@ -1018,7 +1122,7 @@ yydestruct (yymsg, yytype, yyvaluep) }; break; - case 59: /* menu_entry */ + case 63: /* "menu_entry" */ { fprintf(stderr, "%s:%d: missing end statement for this entry\n", @@ -1082,13 +1186,13 @@ yyparse (void) #else int yyparse () - + ; #endif #endif { - register int yystate; - register int yyn; + int yystate; + int yyn; int yyresult; /* Number of tokens to shift before error messages enabled. */ int yyerrstatus; @@ -1106,12 +1210,12 @@ yyparse () /* The state stack. */ short int yyssa[YYINITDEPTH]; short int *yyss = yyssa; - register short int *yyssp; + short int *yyssp; /* The semantic value stack. */ YYSTYPE yyvsa[YYINITDEPTH]; YYSTYPE *yyvs = yyvsa; - register YYSTYPE *yyvsp; + YYSTYPE *yyvsp; @@ -1143,9 +1247,6 @@ yyparse () yyssp = yyss; yyvsp = yyvs; - - yyvsp[0] = yylval; - goto yysetstate; /*------------------------------------------------------------. @@ -1178,7 +1279,7 @@ yyparse () data in use in that stack, in bytes. This used to be a conditional around just the two extra args, but that might be undefined if yyoverflow is a macro. */ - yyoverflow ("parser stack overflow", + yyoverflow (YY_("memory exhausted"), &yyss1, yysize * sizeof (*yyssp), &yyvs1, yysize * sizeof (*yyvsp), @@ -1189,11 +1290,11 @@ yyparse () } #else /* no yyoverflow */ # ifndef YYSTACK_RELOCATE - goto yyoverflowlab; + goto yyexhaustedlab; # else /* Extend the stack our own way. */ if (YYMAXDEPTH <= yystacksize) - goto yyoverflowlab; + goto yyexhaustedlab; yystacksize *= 2; if (YYMAXDEPTH < yystacksize) yystacksize = YYMAXDEPTH; @@ -1203,7 +1304,7 @@ yyparse () union yyalloc *yyptr = (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); if (! yyptr) - goto yyoverflowlab; + goto yyexhaustedlab; YYSTACK_RELOCATE (yyss); YYSTACK_RELOCATE (yyvs); @@ -1403,7 +1504,7 @@ yyreduce: ;} break; - case 37: + case 38: { menu_set_type((yyvsp[-2].id)->stype); @@ -1413,7 +1514,7 @@ yyreduce: ;} break; - case 38: + case 39: { menu_add_prompt(P_PROMPT, (yyvsp[-2].string), (yyvsp[-1].expr)); @@ -1421,7 +1522,7 @@ yyreduce: ;} break; - case 39: + case 40: { menu_add_expr(P_DEFAULT, (yyvsp[-2].expr), (yyvsp[-1].expr)); @@ -1433,7 +1534,7 @@ yyreduce: ;} break; - case 40: + case 41: { menu_add_symbol(P_SELECT, sym_lookup((yyvsp[-2].string), 0), (yyvsp[-1].expr)); @@ -1441,7 +1542,7 @@ yyreduce: ;} break; - case 41: + case 42: { menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,(yyvsp[-3].symbol), (yyvsp[-2].symbol)), (yyvsp[-1].expr)); @@ -1449,7 +1550,29 @@ yyreduce: ;} break; - case 42: + case 45: + + { + struct kconf_id *id = kconf_id_lookup((yyvsp[-1].string), strlen((yyvsp[-1].string))); + if (id && id->flags & TF_OPTION) + menu_add_option(id->token, (yyvsp[0].string)); + else + zconfprint("warning: ignoring unknown option %s", (yyvsp[-1].string)); + free((yyvsp[-1].string)); +;} + break; + + case 46: + + { (yyval.string) = NULL; ;} + break; + + case 47: + + { (yyval.string) = (yyvsp[0].string); ;} + break; + + case 48: { struct symbol *sym = sym_lookup(NULL, 0); @@ -1460,14 +1583,14 @@ yyreduce: ;} break; - case 43: + case 49: { (yyval.menu) = menu_add_menu(); ;} break; - case 44: + case 50: { if (zconf_endtoken((yyvsp[0].id), T_CHOICE, T_ENDCHOICE)) { @@ -1477,7 +1600,7 @@ yyreduce: ;} break; - case 52: + case 58: { menu_add_prompt(P_PROMPT, (yyvsp[-2].string), (yyvsp[-1].expr)); @@ -1485,7 +1608,7 @@ yyreduce: ;} break; - case 53: + case 59: { if ((yyvsp[-2].id)->stype == S_BOOLEAN || (yyvsp[-2].id)->stype == S_TRISTATE) { @@ -1498,7 +1621,7 @@ yyreduce: ;} break; - case 54: + case 60: { current_entry->sym->flags |= SYMBOL_OPTIONAL; @@ -1506,7 +1629,7 @@ yyreduce: ;} break; - case 55: + case 61: { if ((yyvsp[-3].id)->stype == S_UNKNOWN) { @@ -1518,7 +1641,7 @@ yyreduce: ;} break; - case 58: + case 64: { printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno()); @@ -1528,7 +1651,7 @@ yyreduce: ;} break; - case 59: + case 65: { if (zconf_endtoken((yyvsp[0].id), T_IF, T_ENDIF)) { @@ -1538,7 +1661,7 @@ yyreduce: ;} break; - case 65: + case 71: { menu_add_entry(NULL); @@ -1547,14 +1670,14 @@ yyreduce: ;} break; - case 66: + case 72: { (yyval.menu) = menu_add_menu(); ;} break; - case 67: + case 73: { if (zconf_endtoken((yyvsp[0].id), T_MENU, T_ENDMENU)) { @@ -1564,7 +1687,7 @@ yyreduce: ;} break; - case 73: + case 79: { printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), (yyvsp[-1].string)); @@ -1572,7 +1695,7 @@ yyreduce: ;} break; - case 74: + case 80: { menu_add_entry(NULL); @@ -1581,14 +1704,14 @@ yyreduce: ;} break; - case 75: + case 81: { menu_end_entry(); ;} break; - case 76: + case 82: { printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno()); @@ -1596,14 +1719,14 @@ yyreduce: ;} break; - case 77: + case 83: { current_entry->sym->help = (yyvsp[0].string); ;} break; - case 82: + case 88: { menu_add_dep((yyvsp[-1].expr)); @@ -1611,7 +1734,7 @@ yyreduce: ;} break; - case 83: + case 89: { menu_add_dep((yyvsp[-1].expr)); @@ -1619,7 +1742,7 @@ yyreduce: ;} break; - case 84: + case 90: { menu_add_dep((yyvsp[-1].expr)); @@ -1627,87 +1750,88 @@ yyreduce: ;} break; - case 86: + case 92: { menu_add_prompt(P_PROMPT, (yyvsp[-1].string), (yyvsp[0].expr)); ;} break; - case 89: + case 95: { (yyval.id) = (yyvsp[-1].id); ;} break; - case 90: + case 96: { (yyval.id) = (yyvsp[-1].id); ;} break; - case 91: + case 97: { (yyval.id) = (yyvsp[-1].id); ;} break; - case 94: + case 100: { (yyval.expr) = NULL; ;} break; - case 95: + case 101: { (yyval.expr) = (yyvsp[0].expr); ;} break; - case 96: + case 102: { (yyval.expr) = expr_alloc_symbol((yyvsp[0].symbol)); ;} break; - case 97: + case 103: { (yyval.expr) = expr_alloc_comp(E_EQUAL, (yyvsp[-2].symbol), (yyvsp[0].symbol)); ;} break; - case 98: + case 104: { (yyval.expr) = expr_alloc_comp(E_UNEQUAL, (yyvsp[-2].symbol), (yyvsp[0].symbol)); ;} break; - case 99: + case 105: { (yyval.expr) = (yyvsp[-1].expr); ;} break; - case 100: + case 106: { (yyval.expr) = expr_alloc_one(E_NOT, (yyvsp[0].expr)); ;} break; - case 101: + case 107: { (yyval.expr) = expr_alloc_two(E_OR, (yyvsp[-2].expr), (yyvsp[0].expr)); ;} break; - case 102: + case 108: { (yyval.expr) = expr_alloc_two(E_AND, (yyvsp[-2].expr), (yyvsp[0].expr)); ;} break; - case 103: + case 109: { (yyval.symbol) = sym_lookup((yyvsp[0].string), 0); free((yyvsp[0].string)); ;} break; - case 104: + case 110: { (yyval.symbol) = sym_lookup((yyvsp[0].string), 1); free((yyvsp[0].string)); ;} break; + default: break; } -/* Line 1037 of yacc.c. */ +/* Line 1126 of yacc.c. */ yyvsp -= yylen; @@ -1747,12 +1871,36 @@ yyerrlab: if (YYPACT_NINF < yyn && yyn < YYLAST) { - YYSIZE_T yysize = 0; int yytype = YYTRANSLATE (yychar); - const char* yyprefix; - char *yymsg; + YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]); + YYSIZE_T yysize = yysize0; + YYSIZE_T yysize1; + int yysize_overflow = 0; + char *yymsg = 0; +# define YYERROR_VERBOSE_ARGS_MAXIMUM 5 + char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; int yyx; +#if 0 + /* This is so xgettext sees the translatable formats that are + constructed on the fly. */ + YY_("syntax error, unexpected %s"); + YY_("syntax error, unexpected %s, expecting %s"); + YY_("syntax error, unexpected %s, expecting %s or %s"); + YY_("syntax error, unexpected %s, expecting %s or %s or %s"); + YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"); +#endif + char *yyfmt; + char const *yyf; + static char const yyunexpected[] = "syntax error, unexpected %s"; + static char const yyexpecting[] = ", expecting %s"; + static char const yyor[] = " or %s"; + char yyformat[sizeof yyunexpected + + sizeof yyexpecting - 1 + + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2) + * (sizeof yyor - 1))]; + char const *yyprefix = yyexpecting; + /* Start YYX at -YYN if negative to avoid negative indexes in YYCHECK. */ int yyxbegin = yyn < 0 ? -yyn : 0; @@ -1760,48 +1908,68 @@ yyerrlab: /* Stay within bounds of both yycheck and yytname. */ int yychecklim = YYLAST - yyn; int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; - int yycount = 0; + int yycount = 1; + + yyarg[0] = yytname[yytype]; + yyfmt = yystpcpy (yyformat, yyunexpected); - yyprefix = ", expecting "; for (yyx = yyxbegin; yyx < yyxend; ++yyx) if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) { - yysize += yystrlen (yyprefix) + yystrlen (yytname [yyx]); - yycount += 1; - if (yycount == 5) + if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) { - yysize = 0; + yycount = 1; + yysize = yysize0; + yyformat[sizeof yyunexpected - 1] = '\0'; break; } + yyarg[yycount++] = yytname[yyx]; + yysize1 = yysize + yytnamerr (0, yytname[yyx]); + yysize_overflow |= yysize1 < yysize; + yysize = yysize1; + yyfmt = yystpcpy (yyfmt, yyprefix); + yyprefix = yyor; } - yysize += (sizeof ("syntax error, unexpected ") - + yystrlen (yytname[yytype])); - yymsg = (char *) YYSTACK_ALLOC (yysize); - if (yymsg != 0) - { - char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); - yyp = yystpcpy (yyp, yytname[yytype]); - if (yycount < 5) + yyf = YY_(yyformat); + yysize1 = yysize + yystrlen (yyf); + yysize_overflow |= yysize1 < yysize; + yysize = yysize1; + + if (!yysize_overflow && yysize <= YYSTACK_ALLOC_MAXIMUM) + yymsg = (char *) YYSTACK_ALLOC (yysize); + if (yymsg) + { + /* Avoid sprintf, as that infringes on the user's name space. + Don't have undefined behavior even if the translation + produced a string with the wrong number of "%s"s. */ + char *yyp = yymsg; + int yyi = 0; + while ((*yyp = *yyf)) { - yyprefix = ", expecting "; - for (yyx = yyxbegin; yyx < yyxend; ++yyx) - if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) - { - yyp = yystpcpy (yyp, yyprefix); - yyp = yystpcpy (yyp, yytname[yyx]); - yyprefix = " or "; - } + if (*yyp == '%' && yyf[1] == 's' && yyi < yycount) + { + yyp += yytnamerr (yyp, yyarg[yyi++]); + yyf += 2; + } + else + { + yyp++; + yyf++; + } } yyerror (yymsg); YYSTACK_FREE (yymsg); } else - yyerror ("syntax error; also virtual memory exhausted"); + { + yyerror (YY_("syntax error")); + goto yyexhaustedlab; + } } else #endif /* YYERROR_VERBOSE */ - yyerror ("syntax error"); + yyerror (YY_("syntax error")); } @@ -1813,18 +1981,9 @@ yyerrlab: if (yychar <= YYEOF) { - /* If at end of input, pop the error token, - then the rest of the stack, then return failure. */ + /* Return failure if at end of input. */ if (yychar == YYEOF) - for (;;) - { - - YYPOPSTACK; - if (yyssp == yyss) - YYABORT; - yydestruct ("Error: popping", - yystos[*yyssp], yyvsp); - } + YYABORT; } else { @@ -1843,12 +2002,11 @@ yyerrlab: `---------------------------------------------------*/ yyerrorlab: -#ifdef __GNUC__ - /* Pacify GCC when the user code never invokes YYERROR and the label - yyerrorlab therefore never appears in user code. */ + /* Pacify compilers like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ if (0) goto yyerrorlab; -#endif yyvsp -= yylen; yyssp -= yylen; @@ -1911,23 +2069,29 @@ yyacceptlab: | yyabortlab -- YYABORT comes here. | `-----------------------------------*/ yyabortlab: - yydestruct ("Error: discarding lookahead", - yytoken, &yylval); - yychar = YYEMPTY; yyresult = 1; goto yyreturn; #ifndef yyoverflow -/*----------------------------------------------. -| yyoverflowlab -- parser overflow comes here. | -`----------------------------------------------*/ -yyoverflowlab: - yyerror ("parser stack overflow"); +/*-------------------------------------------------. +| yyexhaustedlab -- memory exhaustion comes here. | +`-------------------------------------------------*/ +yyexhaustedlab: + yyerror (YY_("memory exhausted")); yyresult = 2; /* Fall through. */ #endif yyreturn: + if (yychar != YYEOF && yychar != YYEMPTY) + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval); + while (yyssp != yyss) + { + yydestruct ("Cleanup: popping", + yystos[*yyssp], yyvsp); + YYPOPSTACK; + } #ifndef yyoverflow if (yyss != yyssa) YYSTACK_FREE (yyss); diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y index 1f61fba6aa2..9d08582f2aa 100644 --- a/scripts/kconfig/zconf.y +++ b/scripts/kconfig/zconf.y @@ -71,6 +71,7 @@ static struct menu *current_menu, *current_entry; %token T_DEFAULT %token T_SELECT %token T_RANGE +%token T_OPTION %token T_ON %token T_WORD %token T_WORD_QUOTE @@ -91,6 +92,7 @@ static struct menu *current_menu, *current_entry; %type end %type option_name %type if_entry menu_entry choice_entry +%type symbol_option_arg %destructor { fprintf(stderr, "%s:%d: missing end statement for this entry\n", @@ -173,6 +175,7 @@ menuconfig_stmt: menuconfig_entry_start config_option_list config_option_list: /* empty */ | config_option_list config_option + | config_option_list symbol_option | config_option_list depends | config_option_list help | config_option_list option_error @@ -215,6 +218,26 @@ config_option: T_RANGE symbol symbol if_expr T_EOL printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno()); }; +symbol_option: T_OPTION symbol_option_list T_EOL +; + +symbol_option_list: + /* empty */ + | symbol_option_list T_WORD symbol_option_arg +{ + struct kconf_id *id = kconf_id_lookup($2, strlen($2)); + if (id && id->flags & TF_OPTION) + menu_add_option(id->token, $3); + else + zconfprint("warning: ignoring unknown option %s", $2); + free($2); +}; + +symbol_option_arg: + /* empty */ { $$ = NULL; } + | T_EQUAL prompt { $$ = $2; } +; + /* choice entry */ choice: T_CHOICE T_EOL -- cgit v1.2.3 From face4374e288372fba67c865eb0c92337f50d5a4 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:45 -0700 Subject: kconfig: add defconfig_list/module option This makes it possible to change two options which were hardcoded sofar. 1. Any symbol can now take the role of CONFIG_MODULES 2. The more useful option is to change the list of default file names, which kconfig uses to load the base configuration if .config isn't available. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- init/Kconfig | 8 ++++++++ scripts/kconfig/confdata.c | 26 +++++++++++--------------- scripts/kconfig/expr.h | 1 + scripts/kconfig/lkc.h | 1 + scripts/kconfig/menu.c | 14 ++++++++++++++ scripts/kconfig/symbol.c | 15 ++++++++------- scripts/kconfig/zconf.tab.c_shipped | 10 +++++++++- scripts/kconfig/zconf.y | 10 +++++++++- 8 files changed, 61 insertions(+), 24 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 3b36a1d5365..9fb403af108 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1,3 +1,11 @@ +config DEFCONFIG_LIST + string + option defconfig_list + default "/lib/modules/$UNAME_RELEASE/.config" + default "/etc/kernel-config" + default "/boot/config-$UNAME_RELEASE" + default "arch/$ARCH/defconfig" + menu "Code maturity level options" config EXPERIMENTAL diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index e28cd0c2ca0..5bd66f45118 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -25,15 +25,6 @@ const char conf_def_filename[] = ".config"; const char conf_defname[] = "arch/$ARCH/defconfig"; -const char *conf_confnames[] = { - ".config", - "/lib/modules/$UNAME_RELEASE/.config", - "/etc/kernel-config", - "/boot/config-$UNAME_RELEASE", - conf_defname, - NULL, -}; - static void conf_warning(const char *fmt, ...) { va_list ap; @@ -98,16 +89,21 @@ int conf_read_simple(const char *name, int def) if (name) { in = zconf_fopen(name); } else { - const char **names = conf_confnames; - name = *names++; - if (!name) - return 1; + struct property *prop; + + name = conf_def_filename; in = zconf_fopen(name); if (in) goto load; sym_change_count++; - while ((name = *names++)) { - name = conf_expand_value(name); + if (!sym_defconfig_list) + return 1; + + for_all_defaults(sym_defconfig_list, prop) { + if (expr_calc_value(prop->visible.expr) == no || + prop->expr->type != E_SYMBOL) + continue; + name = conf_expand_value(prop->expr->left.sym->name); in = zconf_fopen(name); if (in) { printf(_("#\n" diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h index ffd42c7007e..6084525f604 100644 --- a/scripts/kconfig/expr.h +++ b/scripts/kconfig/expr.h @@ -156,6 +156,7 @@ struct file *lookup_file(const char *name); extern struct symbol symbol_yes, symbol_no, symbol_mod; extern struct symbol *modules_sym; +extern struct symbol *sym_defconfig_list; extern int cdebug; struct expr *expr_alloc_symbol(struct symbol *sym); struct expr *expr_alloc_one(enum expr_type type, struct expr *ce); diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h index 8e89d342889..2d3d4ed3c9f 100644 --- a/scripts/kconfig/lkc.h +++ b/scripts/kconfig/lkc.h @@ -104,6 +104,7 @@ const char *str_get(struct gstr *gs); /* symbol.c */ void sym_init(void); void sym_clear_all_valid(void); +void sym_set_all_changed(void); void sym_set_changed(struct symbol *sym); struct symbol *sym_check_deps(struct symbol *sym); struct property *prop_alloc(enum prop_type type, struct symbol *sym); diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index 151ef2168a2..a8afce24fb1 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -154,6 +154,20 @@ void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep) void menu_add_option(int token, char *arg) { + struct property *prop; + + switch (token) { + case T_OPT_MODULES: + prop = prop_alloc(P_DEFAULT, modules_sym); + prop->expr = expr_alloc_symbol(current_entry->sym); + break; + case T_OPT_DEFCONFIG_LIST: + if (!sym_defconfig_list) + sym_defconfig_list = current_entry->sym; + else if (sym_defconfig_list != current_entry->sym) + zconf_error("trying to redefine defconfig symbol"); + break; + } } static int menu_range_valid_sym(struct symbol *sym, struct symbol *sym2) diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c index 78a60ba39e5..ee225ced2ce 100644 --- a/scripts/kconfig/symbol.c +++ b/scripts/kconfig/symbol.c @@ -31,6 +31,7 @@ struct symbol symbol_yes = { }; int sym_change_count; +struct symbol *sym_defconfig_list; struct symbol *modules_sym; tristate modules_val; @@ -352,10 +353,13 @@ void sym_calc_value(struct symbol *sym) sym->curr.val = sym_calc_choice(sym); sym_validate_range(sym); - if (memcmp(&oldval, &sym->curr, sizeof(oldval))) + if (memcmp(&oldval, &sym->curr, sizeof(oldval))) { sym_set_changed(sym); - if (modules_sym == sym) - modules_val = modules_sym->curr.tri; + if (modules_sym == sym) { + sym_set_all_changed(); + modules_val = modules_sym->curr.tri; + } + } if (sym_is_choice(sym)) { int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE); @@ -449,11 +453,8 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val) } sym->def[S_DEF_USER].tri = val; - if (oldval != val) { + if (oldval != val) sym_clear_all_valid(); - if (sym == modules_sym) - sym_set_all_changed(); - } return true; } diff --git a/scripts/kconfig/zconf.tab.c_shipped b/scripts/kconfig/zconf.tab.c_shipped index 137426e507e..2fb0a4fc61d 100644 --- a/scripts/kconfig/zconf.tab.c_shipped +++ b/scripts/kconfig/zconf.tab.c_shipped @@ -2112,7 +2112,9 @@ void conf_parse(const char *name) sym_init(); menu_init(); - modules_sym = sym_lookup("MODULES", 0); + modules_sym = sym_lookup(NULL, 0); + modules_sym->type = S_BOOLEAN; + modules_sym->flags |= SYMBOL_AUTO; rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL); #if YYDEBUG @@ -2122,6 +2124,12 @@ void conf_parse(const char *name) zconfparse(); if (zconfnerrs) exit(1); + if (!modules_sym->prop) { + struct property *prop; + + prop = prop_alloc(P_DEFAULT, modules_sym); + prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0)); + } menu_finalize(&rootmenu); for_all_symbols(i, sym) { sym_check_deps(sym); diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y index 9d08582f2aa..ab44feb3c60 100644 --- a/scripts/kconfig/zconf.y +++ b/scripts/kconfig/zconf.y @@ -481,7 +481,9 @@ void conf_parse(const char *name) sym_init(); menu_init(); - modules_sym = sym_lookup("MODULES", 0); + modules_sym = sym_lookup(NULL, 0); + modules_sym->type = S_BOOLEAN; + modules_sym->flags |= SYMBOL_AUTO; rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL); #if YYDEBUG @@ -491,6 +493,12 @@ void conf_parse(const char *name) zconfparse(); if (zconfnerrs) exit(1); + if (!modules_sym->prop) { + struct property *prop; + + prop = prop_alloc(P_DEFAULT, modules_sym); + prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0)); + } menu_finalize(&rootmenu); for_all_symbols(i, sym) { sym_check_deps(sym); -- cgit v1.2.3 From 43bf612af2d4f2615dcbf86af8206e2f40231237 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:45 -0700 Subject: kconfig: Add search option for xconfig Implement a simple search request for xconfig. Currently the capabilities are rather simple (the same as menuconfig). Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/qconf.cc | 444 ++++++++++++++++++++++++++++++----------------- scripts/kconfig/qconf.h | 61 +++++-- 2 files changed, 333 insertions(+), 172 deletions(-) diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc index 4590cd31623..2befaeac6e6 100644 --- a/scripts/kconfig/qconf.cc +++ b/scripts/kconfig/qconf.cc @@ -6,16 +6,20 @@ #include #include #include +#include #include #include #include -#include +#include #include +#include +#include #include #include #include #include #include +#include #include #include @@ -35,12 +39,12 @@ static QApplication *configApp; static inline QString qgettext(const char* str) { - return QString::fromLocal8Bit(gettext(str)); + return QString::fromLocal8Bit(gettext(str)); } static inline QString qgettext(const QString& str) { - return QString::fromLocal8Bit(gettext(str.latin1())); + return QString::fromLocal8Bit(gettext(str.latin1())); } ConfigSettings::ConfigSettings() @@ -355,6 +359,12 @@ ConfigItem::~ConfigItem(void) } } +ConfigLineEdit::ConfigLineEdit(ConfigView* parent) + : Parent(parent) +{ + connect(this, SIGNAL(lostFocus()), SLOT(hide())); +} + void ConfigLineEdit::show(ConfigItem* i) { item = i; @@ -385,8 +395,8 @@ void ConfigLineEdit::keyPressEvent(QKeyEvent* e) hide(); } -ConfigList::ConfigList(ConfigView* p, ConfigMainWindow* cv, ConfigSettings* configSettings) - : Parent(p), cview(cv), +ConfigList::ConfigList(ConfigView* p, ConfigSettings* configSettings) + : Parent(p), updateAll(false), symbolYesPix(xpm_symbol_yes), symbolModPix(xpm_symbol_mod), symbolNoPix(xpm_symbol_no), choiceYesPix(xpm_choice_yes), choiceNoPix(xpm_choice_no), @@ -450,9 +460,8 @@ void ConfigList::updateSelection(void) if (!item) return; - cview->setHelp(item); - menu = item->menu; + emit menuChanged(menu); if (!menu) return; type = menu->prompt ? menu->prompt->type : P_UNKNOWN; @@ -464,8 +473,20 @@ void ConfigList::updateList(ConfigItem* item) { ConfigItem* last = 0; - if (!rootEntry) - goto update; + if (!rootEntry) { + if (mode != listMode) + goto update; + QListViewItemIterator it(this); + ConfigItem* item; + + for (; it.current(); ++it) { + item = (ConfigItem*)it.current(); + if (!item->menu) + continue; + item->testUpdateMenu(menu_is_visible(item->menu)); + } + return; + } if (rootEntry != &rootmenu && (mode == singleMode || (mode == symbolMode && rootEntry->parent != &rootmenu))) { @@ -610,7 +631,7 @@ void ConfigList::keyPressEvent(QKeyEvent* ev) struct menu *menu; enum prop_type type; - if (ev->key() == Key_Escape && mode != fullMode) { + if (ev->key() == Key_Escape && mode != fullMode && mode != listMode) { emit parentSelected(); ev->accept(); return; @@ -767,11 +788,10 @@ void ConfigList::focusInEvent(QFocusEvent *e) ConfigView* ConfigView::viewList; -ConfigView::ConfigView(QWidget* parent, ConfigMainWindow* cview, - ConfigSettings *configSettings) +ConfigView::ConfigView(QWidget* parent, ConfigSettings *configSettings) : Parent(parent) { - list = new ConfigList(this, cview, configSettings); + list = new ConfigList(this, configSettings); lineEdit = new ConfigLineEdit(this); lineEdit->hide(); @@ -807,13 +827,238 @@ void ConfigView::updateListAll(void) v->list->updateListAll(); } +ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name) + : Parent(parent, name), menu(0) +{ +} + +void ConfigInfoView::setShowDebug(bool b) +{ + if (_showDebug != b) { + _showDebug = b; + if (menu) + menuInfo(); + emit showDebugChanged(b); + } +} + +void ConfigInfoView::setInfo(struct menu *m) +{ + menu = m; + if (!menu) + clear(); + else + menuInfo(); +} + +void ConfigInfoView::setSource(const QString& name) +{ + const char *p = name.latin1(); + + menu = NULL; + + switch (p[0]) { + case 'm': + if (sscanf(p, "m%p", &menu) == 1) + menuInfo(); + break; + } +} + +void ConfigInfoView::menuInfo(void) +{ + struct symbol* sym; + QString head, debug, help; + + sym = menu->sym; + if (sym) { + if (menu->prompt) { + head += ""; + head += print_filter(_(menu->prompt->text)); + head += ""; + if (sym->name) { + head += " ("; + head += print_filter(sym->name); + head += ")"; + } + } else if (sym->name) { + head += ""; + head += print_filter(sym->name); + head += ""; + } + head += "

"; + + if (showDebug()) + debug = debug_info(sym); + + help = print_filter(_(sym->help)); + } else if (menu->prompt) { + head += ""; + head += print_filter(_(menu->prompt->text)); + head += "

"; + if (showDebug()) { + if (menu->prompt->visible.expr) { + debug += "  dep: "; + expr_print(menu->prompt->visible.expr, expr_print_help, &debug, E_NONE); + debug += "

"; + } + } + } + if (showDebug()) + debug += QString().sprintf("defined at %s:%d

", menu->file->name, menu->lineno); + + setText(head + debug + help); +} + +QString ConfigInfoView::debug_info(struct symbol *sym) +{ + QString debug; + + debug += "type: "; + debug += print_filter(sym_type_name(sym->type)); + if (sym_is_choice(sym)) + debug += " (choice)"; + debug += "
"; + if (sym->rev_dep.expr) { + debug += "reverse dep: "; + expr_print(sym->rev_dep.expr, expr_print_help, &debug, E_NONE); + debug += "
"; + } + for (struct property *prop = sym->prop; prop; prop = prop->next) { + switch (prop->type) { + case P_PROMPT: + case P_MENU: + debug += "prompt: "; + debug += print_filter(_(prop->text)); + debug += "
"; + break; + case P_DEFAULT: + debug += "default: "; + expr_print(prop->expr, expr_print_help, &debug, E_NONE); + debug += "
"; + break; + case P_CHOICE: + if (sym_is_choice(sym)) { + debug += "choice: "; + expr_print(prop->expr, expr_print_help, &debug, E_NONE); + debug += "
"; + } + break; + case P_SELECT: + debug += "select: "; + expr_print(prop->expr, expr_print_help, &debug, E_NONE); + debug += "
"; + break; + case P_RANGE: + debug += "range: "; + expr_print(prop->expr, expr_print_help, &debug, E_NONE); + debug += "
"; + break; + default: + debug += "unknown property: "; + debug += prop_get_type_name(prop->type); + debug += "
"; + } + if (prop->visible.expr) { + debug += "    dep: "; + expr_print(prop->visible.expr, expr_print_help, &debug, E_NONE); + debug += "
"; + } + } + debug += "
"; + + return debug; +} + +QString ConfigInfoView::print_filter(const QString &str) +{ + QRegExp re("[<>&\"\\n]"); + QString res = str; + for (int i = 0; (i = res.find(re, i)) >= 0;) { + switch (res[i].latin1()) { + case '<': + res.replace(i, 1, "<"); + i += 4; + break; + case '>': + res.replace(i, 1, ">"); + i += 4; + break; + case '&': + res.replace(i, 1, "&"); + i += 5; + break; + case '"': + res.replace(i, 1, """); + i += 6; + break; + case '\n': + res.replace(i, 1, "
"); + i += 4; + break; + } + } + return res; +} + +void ConfigInfoView::expr_print_help(void *data, const char *str) +{ + reinterpret_cast(data)->append(print_filter(str)); +} + +ConfigSearchWindow::ConfigSearchWindow(QWidget* parent) + : Parent(parent), result(NULL) +{ + setCaption("Search Config"); + + QVBoxLayout* layout1 = new QVBoxLayout(this, 11, 6); + QHBoxLayout* layout2 = new QHBoxLayout(0, 0, 6); + layout2->addWidget(new QLabel("Find:", this)); + editField = new QLineEdit(this); + connect(editField, SIGNAL(returnPressed()), SLOT(search())); + layout2->addWidget(editField); + searchButton = new QPushButton("Search", this); + searchButton->setAutoDefault(FALSE); + connect(searchButton, SIGNAL(clicked()), SLOT(search())); + layout2->addWidget(searchButton); + layout1->addLayout(layout2); + + QSplitter* split = new QSplitter(this); + split->setOrientation(QSplitter::Vertical); + list = new ConfigView(split, NULL); + list->list->mode = listMode; + info = new ConfigInfoView(split); + connect(list->list, SIGNAL(menuChanged(struct menu *)), + info, SLOT(setInfo(struct menu *))); + layout1->addWidget(split); +} + +void ConfigSearchWindow::search(void) +{ + struct symbol **p; + struct property *prop; + ConfigItem *lastItem = NULL; + + free(result); + list->list->clear(); + + result = sym_re_search(editField->text().latin1()); + if (!result) + return; + for (p = result; *p; p++) { + for_all_prompts((*p), prop) + lastItem = new ConfigItem(list->list, lastItem, prop->menu, + menu_is_visible(prop->menu)); + } +} + /* * Construct the complete config widget */ ConfigMainWindow::ConfigMainWindow(void) { QMenuBar* menu; - bool ok; + bool ok, showDebug; int x, y, width, height; QWidget *d = configApp->desktop(); @@ -843,18 +1088,19 @@ ConfigMainWindow::ConfigMainWindow(void) split1->setOrientation(QSplitter::Horizontal); setCentralWidget(split1); - menuView = new ConfigView(split1, this, configSettings); + menuView = new ConfigView(split1, configSettings); menuList = menuView->list; split2 = new QSplitter(split1); split2->setOrientation(QSplitter::Vertical); // create config tree - configView = new ConfigView(split2, this, configSettings); + configView = new ConfigView(split2, configSettings); configList = configView->list; - helpText = new QTextView(split2); + helpText = new ConfigInfoView(split2); helpText->setTextFormat(Qt::RichText); + helpText->setShowDebug(showDebug); setTabOrder(configList, helpText); configList->setFocus(); @@ -873,6 +1119,8 @@ ConfigMainWindow::ConfigMainWindow(void) connect(saveAction, SIGNAL(activated()), SLOT(saveConfig())); QAction *saveAsAction = new QAction("Save As...", "Save &As...", 0, this); connect(saveAsAction, SIGNAL(activated()), SLOT(saveConfigAs())); + QAction *searchAction = new QAction("Search", "&Search", CTRL+Key_F, this); + connect(searchAction, SIGNAL(activated()), SLOT(searchConfig())); QAction *singleViewAction = new QAction("Single View", QPixmap(xpm_single_view), "Split View", 0, this); connect(singleViewAction, SIGNAL(activated()), SLOT(showSingleView())); QAction *splitViewAction = new QAction("Split View", QPixmap(xpm_split_view), "Split View", 0, this); @@ -899,7 +1147,8 @@ ConfigMainWindow::ConfigMainWindow(void) QAction *showDebugAction = new QAction(NULL, "Show Debug Info", 0, this); showDebugAction->setToggleAction(TRUE); showDebugAction->setOn(showDebug); - connect(showDebugAction, SIGNAL(toggled(bool)), SLOT(setShowDebug(bool))); + connect(showDebugAction, SIGNAL(toggled(bool)), helpText, SLOT(setShowDebug(bool))); + connect(helpText, SIGNAL(showDebugChanged(bool)), showDebugAction, SLOT(setOn(bool))); QAction *showIntroAction = new QAction(NULL, "Introduction", 0, this); connect(showIntroAction, SIGNAL(activated()), SLOT(showIntro())); @@ -923,6 +1172,8 @@ ConfigMainWindow::ConfigMainWindow(void) saveAction->addTo(config); saveAsAction->addTo(config); config->insertSeparator(); + searchAction->addTo(config); + config->insertSeparator(); quitAction->addTo(config); // create options menu @@ -942,10 +1193,14 @@ ConfigMainWindow::ConfigMainWindow(void) showIntroAction->addTo(helpMenu); showAboutAction->addTo(helpMenu); + connect(configList, SIGNAL(menuChanged(struct menu *)), + helpText, SLOT(setInfo(struct menu *))); connect(configList, SIGNAL(menuSelected(struct menu *)), SLOT(changeMenu(struct menu *))); connect(configList, SIGNAL(parentSelected()), SLOT(goBack())); + connect(menuList, SIGNAL(menuChanged(struct menu *)), + helpText, SLOT(setInfo(struct menu *))); connect(menuList, SIGNAL(menuSelected(struct menu *)), SLOT(changeMenu(struct menu *))); @@ -977,42 +1232,6 @@ ConfigMainWindow::ConfigMainWindow(void) delete configSettings; } -static QString print_filter(const QString &str) -{ - QRegExp re("[<>&\"\\n]"); - QString res = str; - for (int i = 0; (i = res.find(re, i)) >= 0;) { - switch (res[i].latin1()) { - case '<': - res.replace(i, 1, "<"); - i += 4; - break; - case '>': - res.replace(i, 1, ">"); - i += 4; - break; - case '&': - res.replace(i, 1, "&"); - i += 5; - break; - case '"': - res.replace(i, 1, """); - i += 6; - break; - case '\n': - res.replace(i, 1, "
"); - i += 4; - break; - } - } - return res; -} - -static void expr_print_help(void *data, const char *str) -{ - reinterpret_cast(data)->append(print_filter(str)); -} - /* * display a new help entry as soon as a new menu entry is selected */ @@ -1021,105 +1240,9 @@ void ConfigMainWindow::setHelp(QListViewItem* item) struct symbol* sym; struct menu* menu = 0; - configList->parent()->lineEdit->hide(); if (item) menu = ((ConfigItem*)item)->menu; - if (!menu) { - helpText->setText(QString::null); - return; - } - - QString head, debug, help; - menu = ((ConfigItem*)item)->menu; - sym = menu->sym; - if (sym) { - if (menu->prompt) { - head += ""; - head += print_filter(_(menu->prompt->text)); - head += ""; - if (sym->name) { - head += " ("; - head += print_filter(_(sym->name)); - head += ")"; - } - } else if (sym->name) { - head += ""; - head += print_filter(_(sym->name)); - head += ""; - } - head += "

"; - - if (showDebug) { - debug += "type: "; - debug += print_filter(sym_type_name(sym->type)); - if (sym_is_choice(sym)) - debug += " (choice)"; - debug += "
"; - if (sym->rev_dep.expr) { - debug += "reverse dep: "; - expr_print(sym->rev_dep.expr, expr_print_help, &debug, E_NONE); - debug += "
"; - } - for (struct property *prop = sym->prop; prop; prop = prop->next) { - switch (prop->type) { - case P_PROMPT: - case P_MENU: - debug += "prompt: "; - debug += print_filter(_(prop->text)); - debug += "
"; - break; - case P_DEFAULT: - debug += "default: "; - expr_print(prop->expr, expr_print_help, &debug, E_NONE); - debug += "
"; - break; - case P_CHOICE: - if (sym_is_choice(sym)) { - debug += "choice: "; - expr_print(prop->expr, expr_print_help, &debug, E_NONE); - debug += "
"; - } - break; - case P_SELECT: - debug += "select: "; - expr_print(prop->expr, expr_print_help, &debug, E_NONE); - debug += "
"; - break; - case P_RANGE: - debug += "range: "; - expr_print(prop->expr, expr_print_help, &debug, E_NONE); - debug += "
"; - break; - default: - debug += "unknown property: "; - debug += prop_get_type_name(prop->type); - debug += "
"; - } - if (prop->visible.expr) { - debug += "    dep: "; - expr_print(prop->visible.expr, expr_print_help, &debug, E_NONE); - debug += "
"; - } - } - debug += "
"; - } - - help = print_filter(_(sym->help)); - } else if (menu->prompt) { - head += ""; - head += print_filter(_(menu->prompt->text)); - head += "

"; - if (showDebug) { - if (menu->prompt->visible.expr) { - debug += "  dep: "; - expr_print(menu->prompt->visible.expr, expr_print_help, &debug, E_NONE); - debug += "

"; - } - } - } - if (showDebug) - debug += QString().sprintf("defined at %s:%d

", menu->file->name, menu->lineno); - helpText->setText(head + debug + help); + helpText->setInfo(menu); } void ConfigMainWindow::loadConfig(void) @@ -1147,6 +1270,13 @@ void ConfigMainWindow::saveConfigAs(void) QMessageBox::information(this, "qconf", "Unable to save configuration!"); } +void ConfigMainWindow::searchConfig(void) +{ + if (!searchWindow) + searchWindow = new ConfigSearchWindow(this); + searchWindow->show(); +} + void ConfigMainWindow::changeMenu(struct menu *menu) { configList->setRootMenu(menu); @@ -1233,13 +1363,6 @@ void ConfigMainWindow::setShowAll(bool b) menuList->updateListAll(); } -void ConfigMainWindow::setShowDebug(bool b) -{ - if (showDebug == b) - return; - showDebug = b; -} - void ConfigMainWindow::setShowName(bool b) { if (configList->showName == b) @@ -1334,7 +1457,7 @@ void ConfigMainWindow::saveSettings(void) configSettings->writeEntry("/kconfig/qconf/showRange", configList->showRange); configSettings->writeEntry("/kconfig/qconf/showData", configList->showData); configSettings->writeEntry("/kconfig/qconf/showAll", configList->showAll); - configSettings->writeEntry("/kconfig/qconf/showDebug", showDebug); + configSettings->writeEntry("/kconfig/qconf/showDebug", helpText->showDebug()); QString entry; switch(configList->mode) { @@ -1417,9 +1540,10 @@ int main(int ac, char** av) v = new ConfigMainWindow(); //zconfdump(stdout); - v->show(); + configApp->setMainWidget(v); configApp->connect(configApp, SIGNAL(lastWindowClosed()), SLOT(quit())); configApp->connect(configApp, SIGNAL(aboutToQuit()), v, SLOT(saveSettings())); + v->show(); configApp->exec(); return 0; diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h index e52f3e90bf0..a548d13149b 100644 --- a/scripts/kconfig/qconf.h +++ b/scripts/kconfig/qconf.h @@ -36,7 +36,7 @@ class ConfigView : public QVBox { Q_OBJECT typedef class QVBox Parent; public: - ConfigView(QWidget* parent, ConfigMainWindow* cview, ConfigSettings* configSettings); + ConfigView(QWidget* parent, ConfigSettings* configSettings); ~ConfigView(void); static void updateList(ConfigItem* item); static void updateListAll(void); @@ -53,14 +53,14 @@ enum colIdx { promptColIdx, nameColIdx, noColIdx, modColIdx, yesColIdx, dataColIdx, colNr }; enum listMode { - singleMode, menuMode, symbolMode, fullMode + singleMode, menuMode, symbolMode, fullMode, listMode }; class ConfigList : public QListView { Q_OBJECT typedef class QListView Parent; public: - ConfigList(ConfigView* p, ConfigMainWindow* cview, ConfigSettings *configSettings); + ConfigList(ConfigView* p, ConfigSettings *configSettings); void reinit(void); ConfigView* parent(void) const { @@ -68,8 +68,6 @@ public: } protected: - ConfigMainWindow* cview; - void keyPressEvent(QKeyEvent *e); void contentsMousePressEvent(QMouseEvent *e); void contentsMouseReleaseEvent(QMouseEvent *e); @@ -84,6 +82,7 @@ public slots: void changeValue(ConfigItem* item); void updateSelection(void); signals: + void menuChanged(struct menu *menu); void menuSelected(struct menu *menu); void parentSelected(void); void gotFocus(void); @@ -208,9 +207,7 @@ class ConfigLineEdit : public QLineEdit { Q_OBJECT typedef class QLineEdit Parent; public: - ConfigLineEdit(ConfigView* parent) - : Parent(parent) - { } + ConfigLineEdit(ConfigView* parent); ConfigView* parent(void) const { return (ConfigView*)Parent::parent(); @@ -222,6 +219,47 @@ public: ConfigItem *item; }; +class ConfigInfoView : public QTextBrowser { + Q_OBJECT + typedef class QTextBrowser Parent; +public: + ConfigInfoView(QWidget* parent, const char *name = 0); + bool showDebug(void) const { return _showDebug; } + +public slots: + void setInfo(struct menu *menu); + void setSource(const QString& name); + void setShowDebug(bool); + +signals: + void showDebugChanged(bool); + +protected: + void menuInfo(void); + QString debug_info(struct symbol *sym); + static QString print_filter(const QString &str); + static void expr_print_help(void *data, const char *str); + + struct menu *menu; + bool _showDebug; +}; + +class ConfigSearchWindow : public QDialog { + Q_OBJECT + typedef class QDialog Parent; +public: + ConfigSearchWindow(QWidget* parent); +public slots: + void search(void); +protected: + QLineEdit* editField; + QPushButton* searchButton; + ConfigView* list; + ConfigInfoView* info; + + struct symbol **result; +}; + class ConfigMainWindow : public QMainWindow { Q_OBJECT public: @@ -234,11 +272,11 @@ public slots: void loadConfig(void); void saveConfig(void); void saveConfigAs(void); + void searchConfig(void); void showSingleView(void); void showSplitView(void); void showFullView(void); void setShowAll(bool); - void setShowDebug(bool); void setShowRange(bool); void setShowName(bool); void setShowData(bool); @@ -249,15 +287,14 @@ public slots: protected: void closeEvent(QCloseEvent *e); + ConfigSearchWindow *searchWindow; ConfigView *menuView; ConfigList *menuList; ConfigView *configView; ConfigList *configList; - QTextView *helpText; + ConfigInfoView *helpText; QToolBar *toolBar; QAction *backAction; QSplitter* split1; QSplitter* split2; - - bool showDebug; }; -- cgit v1.2.3 From 7fc925fd6a4c24e1db879d227fc0a0f65a335aa1 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:46 -0700 Subject: kconfig: finer customization via popup menus This allows to configure every symbol list and info window separately via a popup menu, these settings are also separately saved and restored. Cleanup the ConfigSettings class a bit to reduce the number of #ifdef. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/qconf.cc | 486 +++++++++++++++++++++++++++-------------------- scripts/kconfig/qconf.h | 95 +++++---- 2 files changed, 343 insertions(+), 238 deletions(-) diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc index 2befaeac6e6..f3f86e735a8 100644 --- a/scripts/kconfig/qconf.cc +++ b/scripts/kconfig/qconf.cc @@ -36,6 +36,7 @@ #endif static QApplication *configApp; +static ConfigSettings *configSettings; static inline QString qgettext(const char* str) { @@ -47,23 +48,6 @@ static inline QString qgettext(const QString& str) return QString::fromLocal8Bit(gettext(str.latin1())); } -ConfigSettings::ConfigSettings() - : showAll(false), showName(false), showRange(false), showData(false) -{ -} - -#if QT_VERSION >= 300 -/** - * Reads the list column settings from the application settings. - */ -void ConfigSettings::readListSettings() -{ - showAll = readBoolEntry("/kconfig/qconf/showAll", false); - showName = readBoolEntry("/kconfig/qconf/showName", false); - showRange = readBoolEntry("/kconfig/qconf/showRange", false); - showData = readBoolEntry("/kconfig/qconf/showData", false); -} - /** * Reads a list of integer values from the application settings. */ @@ -92,76 +76,7 @@ bool ConfigSettings::writeSizes(const QString& key, const QValueList& value stringList.push_back(QString::number(*it)); return writeEntry(key, stringList); } -#endif - - -/* - * update all the children of a menu entry - * removes/adds the entries from the parent widget as necessary - * - * parent: either the menu list widget or a menu entry widget - * menu: entry to be updated - */ -template -void ConfigList::updateMenuList(P* parent, struct menu* menu) -{ - struct menu* child; - ConfigItem* item; - ConfigItem* last; - bool visible; - enum prop_type type; - - if (!menu) { - while ((item = parent->firstChild())) - delete item; - return; - } - - last = parent->firstChild(); - if (last && !last->goParent) - last = 0; - for (child = menu->list; child; child = child->next) { - item = last ? last->nextSibling() : parent->firstChild(); - type = child->prompt ? child->prompt->type : P_UNKNOWN; - - switch (mode) { - case menuMode: - if (!(child->flags & MENU_ROOT)) - goto hide; - break; - case symbolMode: - if (child->flags & MENU_ROOT) - goto hide; - break; - default: - break; - } - - visible = menu_is_visible(child); - if (showAll || visible) { - if (!item || item->menu != child) - item = new ConfigItem(parent, last, child, visible); - else - item->testUpdateMenu(visible); - if (mode == fullMode || mode == menuMode || type != P_MENU) - updateMenuList(item, child); - else - updateMenuList(item, 0); - last = item; - continue; - } - hide: - if (item && item->menu == child) { - last = parent->firstChild(); - if (last == item) - last = 0; - else while (last->nextSibling() != item) - last = last->nextSibling(); - delete item; - } - } -} #if QT_VERSION >= 300 /* @@ -395,14 +310,14 @@ void ConfigLineEdit::keyPressEvent(QKeyEvent* e) hide(); } -ConfigList::ConfigList(ConfigView* p, ConfigSettings* configSettings) - : Parent(p), +ConfigList::ConfigList(ConfigView* p, const char *name) + : Parent(p, name), updateAll(false), symbolYesPix(xpm_symbol_yes), symbolModPix(xpm_symbol_mod), symbolNoPix(xpm_symbol_no), choiceYesPix(xpm_choice_yes), choiceNoPix(xpm_choice_no), menuPix(xpm_menu), menuInvPix(xpm_menu_inv), menuBackPix(xpm_menuback), voidPix(xpm_void), showAll(false), showName(false), showRange(false), showData(false), - rootEntry(0) + rootEntry(0), headerPopup(0) { int i; @@ -416,11 +331,14 @@ ConfigList::ConfigList(ConfigView* p, ConfigSettings* configSettings) connect(this, SIGNAL(selectionChanged(void)), SLOT(updateSelection(void))); - if (configSettings) { - showAll = configSettings->showAll; - showName = configSettings->showName; - showRange = configSettings->showRange; - showData = configSettings->showData; + if (name) { + configSettings->beginGroup(name); + showAll = configSettings->readBoolEntry("/showAll", false); + showName = configSettings->readBoolEntry("/showName", false); + showRange = configSettings->readBoolEntry("/showRange", false); + showData = configSettings->readBoolEntry("/showData", false); + configSettings->endGroup(); + connect(configApp, SIGNAL(aboutToQuit()), SLOT(saveSettings())); } for (i = 0; i < colNr; i++) @@ -451,6 +369,18 @@ void ConfigList::reinit(void) updateListAll(); } +void ConfigList::saveSettings(void) +{ + if (name()) { + configSettings->beginGroup(name()); + configSettings->writeEntry("/showName", showName); + configSettings->writeEntry("/showRange", showRange); + configSettings->writeEntry("/showData", showData); + configSettings->writeEntry("/showAll", showAll); + configSettings->endGroup(); + } +} + void ConfigList::updateSelection(void) { struct menu *menu; @@ -512,14 +442,6 @@ update: triggerUpdate(); } -void ConfigList::setAllOpen(bool open) -{ - QListViewItemIterator it(this); - - for (; it.current(); it++) - it.current()->setOpen(open); -} - void ConfigList::setValue(ConfigItem* item, tristate val) { struct symbol* sym; @@ -624,6 +546,74 @@ void ConfigList::setParentMenu(void) } } +/* + * update all the children of a menu entry + * removes/adds the entries from the parent widget as necessary + * + * parent: either the menu list widget or a menu entry widget + * menu: entry to be updated + */ +template +void ConfigList::updateMenuList(P* parent, struct menu* menu) +{ + struct menu* child; + ConfigItem* item; + ConfigItem* last; + bool visible; + enum prop_type type; + + if (!menu) { + while ((item = parent->firstChild())) + delete item; + return; + } + + last = parent->firstChild(); + if (last && !last->goParent) + last = 0; + for (child = menu->list; child; child = child->next) { + item = last ? last->nextSibling() : parent->firstChild(); + type = child->prompt ? child->prompt->type : P_UNKNOWN; + + switch (mode) { + case menuMode: + if (!(child->flags & MENU_ROOT)) + goto hide; + break; + case symbolMode: + if (child->flags & MENU_ROOT) + goto hide; + break; + default: + break; + } + + visible = menu_is_visible(child); + if (showAll || visible) { + if (!item || item->menu != child) + item = new ConfigItem(parent, last, child, visible); + else + item->testUpdateMenu(visible); + + if (mode == fullMode || mode == menuMode || type != P_MENU) + updateMenuList(item, child); + else + updateMenuList(item, 0); + last = item; + continue; + } + hide: + if (item && item->menu == child) { + last = parent->firstChild(); + if (last == item) + last = 0; + else while (last->nextSibling() != item) + last = last->nextSibling(); + delete item; + } + } +} + void ConfigList::keyPressEvent(QKeyEvent* ev) { QListViewItem* i = currentItem(); @@ -786,12 +776,50 @@ void ConfigList::focusInEvent(QFocusEvent *e) emit gotFocus(); } +void ConfigList::contextMenuEvent(QContextMenuEvent *e) +{ + if (e->y() <= header()->geometry().bottom()) { + if (!headerPopup) { + QAction *action; + + headerPopup = new QPopupMenu(this); + action = new QAction("Show Name", 0, this); + action->setToggleAction(TRUE); + connect(action, SIGNAL(toggled(bool)), + parent(), SLOT(setShowName(bool))); + connect(parent(), SIGNAL(showNameChanged(bool)), + action, SLOT(setOn(bool))); + action->setOn(showName); + action->addTo(headerPopup); + action = new QAction("Show Range", 0, this); + action->setToggleAction(TRUE); + connect(action, SIGNAL(toggled(bool)), + parent(), SLOT(setShowRange(bool))); + connect(parent(), SIGNAL(showRangeChanged(bool)), + action, SLOT(setOn(bool))); + action->setOn(showRange); + action->addTo(headerPopup); + action = new QAction("Show Data", 0, this); + action->setToggleAction(TRUE); + connect(action, SIGNAL(toggled(bool)), + parent(), SLOT(setShowData(bool))); + connect(parent(), SIGNAL(showDataChanged(bool)), + action, SLOT(setOn(bool))); + action->setOn(showData); + action->addTo(headerPopup); + } + headerPopup->exec(e->globalPos()); + e->accept(); + } else + e->ignore(); +} + ConfigView* ConfigView::viewList; -ConfigView::ConfigView(QWidget* parent, ConfigSettings *configSettings) - : Parent(parent) +ConfigView::ConfigView(QWidget* parent, const char *name) + : Parent(parent, name) { - list = new ConfigList(this, configSettings); + list = new ConfigList(this, name); lineEdit = new ConfigLineEdit(this); lineEdit->hide(); @@ -811,6 +839,50 @@ ConfigView::~ConfigView(void) } } +void ConfigView::setShowAll(bool b) +{ + if (list->showAll != b) { + list->showAll = b; + list->updateListAll(); + emit showAllChanged(b); + } +} + +void ConfigView::setShowName(bool b) +{ + if (list->showName != b) { + list->showName = b; + list->reinit(); + emit showNameChanged(b); + } +} + +void ConfigView::setShowRange(bool b) +{ + if (list->showRange != b) { + list->showRange = b; + list->reinit(); + emit showRangeChanged(b); + } +} + +void ConfigView::setShowData(bool b) +{ + if (list->showData != b) { + list->showData = b; + list->reinit(); + emit showDataChanged(b); + } +} + +void ConfigList::setAllOpen(bool open) +{ + QListViewItemIterator it(this); + + for (; it.current(); it++) + it.current()->setOpen(open); +} + void ConfigView::updateList(ConfigItem* item) { ConfigView* v; @@ -830,6 +902,21 @@ void ConfigView::updateListAll(void) ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name) : Parent(parent, name), menu(0) { + if (name) { + configSettings->beginGroup(name); + _showDebug = configSettings->readBoolEntry("/showDebug", false); + configSettings->endGroup(); + connect(configApp, SIGNAL(aboutToQuit()), SLOT(saveSettings())); + } +} + +void ConfigInfoView::saveSettings(void) +{ + if (name()) { + configSettings->beginGroup(name()); + configSettings->writeEntry("/showDebug", showDebug()); + configSettings->endGroup(); + } } void ConfigInfoView::setShowDebug(bool b) @@ -1006,8 +1093,26 @@ void ConfigInfoView::expr_print_help(void *data, const char *str) reinterpret_cast(data)->append(print_filter(str)); } -ConfigSearchWindow::ConfigSearchWindow(QWidget* parent) - : Parent(parent), result(NULL) +QPopupMenu* ConfigInfoView::createPopupMenu(const QPoint& pos) +{ + QPopupMenu* popup = Parent::createPopupMenu(pos); + QAction* action = new QAction("Show Debug Info", 0, popup); + action->setToggleAction(TRUE); + connect(action, SIGNAL(toggled(bool)), SLOT(setShowDebug(bool))); + connect(this, SIGNAL(showDebugChanged(bool)), action, SLOT(setOn(bool))); + action->setOn(showDebug()); + popup->insertSeparator(); + action->addTo(popup); + return popup; +} + +void ConfigInfoView::contentsContextMenuEvent(QContextMenuEvent *e) +{ + Parent::contentsContextMenuEvent(e); +} + +ConfigSearchWindow::ConfigSearchWindow(QWidget* parent, const char *name) + : Parent(parent, name), result(NULL) { setCaption("Search Config"); @@ -1023,14 +1128,47 @@ ConfigSearchWindow::ConfigSearchWindow(QWidget* parent) layout2->addWidget(searchButton); layout1->addLayout(layout2); - QSplitter* split = new QSplitter(this); + split = new QSplitter(this); split->setOrientation(QSplitter::Vertical); - list = new ConfigView(split, NULL); + list = new ConfigView(split, name); list->list->mode = listMode; - info = new ConfigInfoView(split); + info = new ConfigInfoView(split, name); connect(list->list, SIGNAL(menuChanged(struct menu *)), info, SLOT(setInfo(struct menu *))); layout1->addWidget(split); + + if (name) { + int x, y, width, height; + bool ok; + + configSettings->beginGroup(name); + width = configSettings->readNumEntry("/window width", parent->width() / 2); + height = configSettings->readNumEntry("/window height", parent->height() / 2); + resize(width, height); + x = configSettings->readNumEntry("/window x", 0, &ok); + if (ok) + y = configSettings->readNumEntry("/window y", 0, &ok); + if (ok) + move(x, y); + QValueList sizes = configSettings->readSizes("/split", &ok); + if (ok) + split->setSizes(sizes); + configSettings->endGroup(); + connect(configApp, SIGNAL(aboutToQuit()), SLOT(saveSettings())); + } +} + +void ConfigSearchWindow::saveSettings(void) +{ + if (name()) { + configSettings->beginGroup(name()); + configSettings->writeEntry("/window x", pos().x()); + configSettings->writeEntry("/window y", pos().y()); + configSettings->writeEntry("/window width", size().width()); + configSettings->writeEntry("/window height", size().height()); + configSettings->writeSizes("/split", split->sizes()); + configSettings->endGroup(); + } } void ConfigSearchWindow::search(void) @@ -1058,49 +1196,36 @@ void ConfigSearchWindow::search(void) ConfigMainWindow::ConfigMainWindow(void) { QMenuBar* menu; - bool ok, showDebug; + bool ok; int x, y, width, height; QWidget *d = configApp->desktop(); - ConfigSettings* configSettings = new ConfigSettings(); -#if QT_VERSION >= 300 - width = configSettings->readNumEntry("/kconfig/qconf/window width", d->width() - 64); - height = configSettings->readNumEntry("/kconfig/qconf/window height", d->height() - 64); + width = configSettings->readNumEntry("/window width", d->width() - 64); + height = configSettings->readNumEntry("/window height", d->height() - 64); resize(width, height); - x = configSettings->readNumEntry("/kconfig/qconf/window x", 0, &ok); + x = configSettings->readNumEntry("/window x", 0, &ok); if (ok) - y = configSettings->readNumEntry("/kconfig/qconf/window y", 0, &ok); + y = configSettings->readNumEntry("/window y", 0, &ok); if (ok) move(x, y); - showDebug = configSettings->readBoolEntry("/kconfig/qconf/showDebug", false); - - // read list settings into configSettings, will be used later for ConfigList setup - configSettings->readListSettings(); -#else - width = d->width() - 64; - height = d->height() - 64; - resize(width, height); - showDebug = false; -#endif split1 = new QSplitter(this); split1->setOrientation(QSplitter::Horizontal); setCentralWidget(split1); - menuView = new ConfigView(split1, configSettings); + menuView = new ConfigView(split1, "menu"); menuList = menuView->list; split2 = new QSplitter(split1); split2->setOrientation(QSplitter::Vertical); // create config tree - configView = new ConfigView(split2, configSettings); + configView = new ConfigView(split2, "config"); configList = configView->list; - helpText = new ConfigInfoView(split2); + helpText = new ConfigInfoView(split2, "help"); helpText->setTextFormat(Qt::RichText); - helpText->setShowDebug(showDebug); setTabOrder(configList, helpText); configList->setFocus(); @@ -1130,25 +1255,29 @@ ConfigMainWindow::ConfigMainWindow(void) QAction *showNameAction = new QAction(NULL, "Show Name", 0, this); showNameAction->setToggleAction(TRUE); - showNameAction->setOn(configList->showName); - connect(showNameAction, SIGNAL(toggled(bool)), SLOT(setShowName(bool))); + connect(showNameAction, SIGNAL(toggled(bool)), configView, SLOT(setShowName(bool))); + connect(configView, SIGNAL(showNameChanged(bool)), showNameAction, SLOT(setOn(bool))); + showNameAction->setOn(configView->showName()); QAction *showRangeAction = new QAction(NULL, "Show Range", 0, this); showRangeAction->setToggleAction(TRUE); + connect(showRangeAction, SIGNAL(toggled(bool)), configView, SLOT(setShowRange(bool))); + connect(configView, SIGNAL(showRangeChanged(bool)), showRangeAction, SLOT(setOn(bool))); showRangeAction->setOn(configList->showRange); - connect(showRangeAction, SIGNAL(toggled(bool)), SLOT(setShowRange(bool))); QAction *showDataAction = new QAction(NULL, "Show Data", 0, this); showDataAction->setToggleAction(TRUE); + connect(showDataAction, SIGNAL(toggled(bool)), configView, SLOT(setShowData(bool))); + connect(configView, SIGNAL(showDataChanged(bool)), showDataAction, SLOT(setOn(bool))); showDataAction->setOn(configList->showData); - connect(showDataAction, SIGNAL(toggled(bool)), SLOT(setShowData(bool))); QAction *showAllAction = new QAction(NULL, "Show All Options", 0, this); showAllAction->setToggleAction(TRUE); + connect(showAllAction, SIGNAL(toggled(bool)), configView, SLOT(setShowAll(bool))); + connect(showAllAction, SIGNAL(toggled(bool)), menuView, SLOT(setShowAll(bool))); showAllAction->setOn(configList->showAll); - connect(showAllAction, SIGNAL(toggled(bool)), SLOT(setShowAll(bool))); QAction *showDebugAction = new QAction(NULL, "Show Debug Info", 0, this); showDebugAction->setToggleAction(TRUE); - showDebugAction->setOn(showDebug); connect(showDebugAction, SIGNAL(toggled(bool)), helpText, SLOT(setShowDebug(bool))); connect(helpText, SIGNAL(showDebugChanged(bool)), showDebugAction, SLOT(setOn(bool))); + showDebugAction->setOn(helpText->showDebug()); QAction *showIntroAction = new QAction(NULL, "Introduction", 0, this); connect(showIntroAction, SIGNAL(activated()), SLOT(showIntro())); @@ -1209,8 +1338,7 @@ ConfigMainWindow::ConfigMainWindow(void) connect(menuList, SIGNAL(gotFocus(void)), SLOT(listFocusChanged(void))); -#if QT_VERSION >= 300 - QString listMode = configSettings->readEntry("/kconfig/qconf/listMode", "symbol"); + QString listMode = configSettings->readEntry("/listMode", "symbol"); if (listMode == "single") showSingleView(); else if (listMode == "full") @@ -1219,17 +1347,13 @@ ConfigMainWindow::ConfigMainWindow(void) showSplitView(); // UI setup done, restore splitter positions - QValueList sizes = configSettings->readSizes("/kconfig/qconf/split1", &ok); + QValueList sizes = configSettings->readSizes("/split1", &ok); if (ok) split1->setSizes(sizes); - sizes = configSettings->readSizes("/kconfig/qconf/split2", &ok); + sizes = configSettings->readSizes("/split2", &ok); if (ok) split2->setSizes(sizes); -#else - showSplitView(); -#endif - delete configSettings; } /* @@ -1237,7 +1361,6 @@ ConfigMainWindow::ConfigMainWindow(void) */ void ConfigMainWindow::setHelp(QListViewItem* item) { - struct symbol* sym; struct menu* menu = 0; if (item) @@ -1273,7 +1396,7 @@ void ConfigMainWindow::saveConfigAs(void) void ConfigMainWindow::searchConfig(void) { if (!searchWindow) - searchWindow = new ConfigSearchWindow(this); + searchWindow = new ConfigSearchWindow(this, "search"); searchWindow->show(); } @@ -1353,46 +1476,6 @@ void ConfigMainWindow::showFullView(void) configList->setFocus(); } -void ConfigMainWindow::setShowAll(bool b) -{ - if (configList->showAll == b) - return; - configList->showAll = b; - configList->updateListAll(); - menuList->showAll = b; - menuList->updateListAll(); -} - -void ConfigMainWindow::setShowName(bool b) -{ - if (configList->showName == b) - return; - configList->showName = b; - configList->reinit(); - menuList->showName = b; - menuList->reinit(); -} - -void ConfigMainWindow::setShowRange(bool b) -{ - if (configList->showRange == b) - return; - configList->showRange = b; - configList->reinit(); - menuList->showRange = b; - menuList->reinit(); -} - -void ConfigMainWindow::setShowData(bool b) -{ - if (configList->showData == b) - return; - configList->showData = b; - configList->reinit(); - menuList->showData = b; - menuList->reinit(); -} - /* * ask for saving configuration before quitting * TODO ask only when something changed @@ -1447,17 +1530,10 @@ void ConfigMainWindow::showAbout(void) void ConfigMainWindow::saveSettings(void) { -#if QT_VERSION >= 300 - ConfigSettings *configSettings = new ConfigSettings; - configSettings->writeEntry("/kconfig/qconf/window x", pos().x()); - configSettings->writeEntry("/kconfig/qconf/window y", pos().y()); - configSettings->writeEntry("/kconfig/qconf/window width", size().width()); - configSettings->writeEntry("/kconfig/qconf/window height", size().height()); - configSettings->writeEntry("/kconfig/qconf/showName", configList->showName); - configSettings->writeEntry("/kconfig/qconf/showRange", configList->showRange); - configSettings->writeEntry("/kconfig/qconf/showData", configList->showData); - configSettings->writeEntry("/kconfig/qconf/showAll", configList->showAll); - configSettings->writeEntry("/kconfig/qconf/showDebug", helpText->showDebug()); + configSettings->writeEntry("/window x", pos().x()); + configSettings->writeEntry("/window y", pos().y()); + configSettings->writeEntry("/window width", size().width()); + configSettings->writeEntry("/window height", size().height()); QString entry; switch(configList->mode) { @@ -1473,13 +1549,10 @@ void ConfigMainWindow::saveSettings(void) entry = "full"; break; } - configSettings->writeEntry("/kconfig/qconf/listMode", entry); + configSettings->writeEntry("/listMode", entry); - configSettings->writeSizes("/kconfig/qconf/split1", split1->sizes()); - configSettings->writeSizes("/kconfig/qconf/split2", split2->sizes()); - - delete configSettings; -#endif + configSettings->writeSizes("/split1", split1->sizes()); + configSettings->writeSizes("/split2", split2->sizes()); } void fixup_rootmenu(struct menu *menu) @@ -1537,6 +1610,8 @@ int main(int ac, char** av) conf_read(NULL); //zconfdump(stdout); + configSettings = new ConfigSettings(); + configSettings->beginGroup("/kconfig/qconf"); v = new ConfigMainWindow(); //zconfdump(stdout); @@ -1546,5 +1621,8 @@ int main(int ac, char** av) v->show(); configApp->exec(); + configSettings->endGroup(); + delete configSettings; + return 0; } diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h index a548d13149b..fb50e1c6029 100644 --- a/scripts/kconfig/qconf.h +++ b/scripts/kconfig/qconf.h @@ -7,9 +7,25 @@ #if QT_VERSION >= 300 #include #else -class QSettings { }; +class QSettings { +public: + void beginGroup(const QString& group) { } + void endGroup(void) { } + bool readBoolEntry(const QString& key, bool def = FALSE, bool* ok = 0) const + { if (ok) *ok = FALSE; return def; } + int readNumEntry(const QString& key, int def = 0, bool* ok = 0) const + { if (ok) *ok = FALSE; return def; } + QString readEntry(const QString& key, const QString& def = QString::null, bool* ok = 0) const + { if (ok) *ok = FALSE; return def; } + QStringList readListEntry(const QString& key, bool* ok = 0) const + { if (ok) *ok = FALSE; return QStringList(); } + template + bool writeEntry(const QString& key, t value) + { return TRUE; } +}; #endif +class ConfigView; class ConfigList; class ConfigItem; class ConfigLineEdit; @@ -18,35 +34,8 @@ class ConfigMainWindow; class ConfigSettings : public QSettings { public: - ConfigSettings(); - -#if QT_VERSION >= 300 - void readListSettings(); QValueList readSizes(const QString& key, bool *ok); bool writeSizes(const QString& key, const QValueList& value); -#endif - - bool showAll; - bool showName; - bool showRange; - bool showData; -}; - -class ConfigView : public QVBox { - Q_OBJECT - typedef class QVBox Parent; -public: - ConfigView(QWidget* parent, ConfigSettings* configSettings); - ~ConfigView(void); - static void updateList(ConfigItem* item); - static void updateListAll(void); - -public: - ConfigList* list; - ConfigLineEdit* lineEdit; - - static ConfigView* viewList; - ConfigView* nextView; }; enum colIdx { @@ -60,7 +49,7 @@ class ConfigList : public QListView { Q_OBJECT typedef class QListView Parent; public: - ConfigList(ConfigView* p, ConfigSettings *configSettings); + ConfigList(ConfigView* p, const char *name = 0); void reinit(void); ConfigView* parent(void) const { @@ -74,6 +63,8 @@ protected: void contentsMouseMoveEvent(QMouseEvent *e); void contentsMouseDoubleClickEvent(QMouseEvent *e); void focusInEvent(QFocusEvent *e); + void contextMenuEvent(QContextMenuEvent *e); + public slots: void setRootMenu(struct menu *menu); @@ -81,6 +72,7 @@ public slots: void setValue(ConfigItem* item, tristate val); void changeValue(ConfigItem* item); void updateSelection(void); + void saveSettings(void); signals: void menuChanged(struct menu *menu); void menuSelected(struct menu *menu); @@ -136,6 +128,7 @@ public: struct menu *rootEntry; QColorGroup disabledColorGroup; QColorGroup inactivedColorGroup; + QPopupMenu* headerPopup; private: int colMap[colNr]; @@ -219,6 +212,37 @@ public: ConfigItem *item; }; +class ConfigView : public QVBox { + Q_OBJECT + typedef class QVBox Parent; +public: + ConfigView(QWidget* parent, const char *name = 0); + ~ConfigView(void); + static void updateList(ConfigItem* item); + static void updateListAll(void); + + bool showAll(void) const { return list->showAll; } + bool showName(void) const { return list->showName; } + bool showRange(void) const { return list->showRange; } + bool showData(void) const { return list->showData; } +public slots: + void setShowAll(bool); + void setShowName(bool); + void setShowRange(bool); + void setShowData(bool); +signals: + void showAllChanged(bool); + void showNameChanged(bool); + void showRangeChanged(bool); + void showDataChanged(bool); +public: + ConfigList* list; + ConfigLineEdit* lineEdit; + + static ConfigView* viewList; + ConfigView* nextView; +}; + class ConfigInfoView : public QTextBrowser { Q_OBJECT typedef class QTextBrowser Parent; @@ -228,6 +252,7 @@ public: public slots: void setInfo(struct menu *menu); + void saveSettings(void); void setSource(const QString& name); void setShowDebug(bool); @@ -239,6 +264,8 @@ protected: QString debug_info(struct symbol *sym); static QString print_filter(const QString &str); static void expr_print_help(void *data, const char *str); + QPopupMenu* createPopupMenu(const QPoint& pos); + void contentsContextMenuEvent(QContextMenuEvent *e); struct menu *menu; bool _showDebug; @@ -248,12 +275,16 @@ class ConfigSearchWindow : public QDialog { Q_OBJECT typedef class QDialog Parent; public: - ConfigSearchWindow(QWidget* parent); + ConfigSearchWindow(QWidget* parent, const char *name = 0); + public slots: + void saveSettings(void); void search(void); + protected: QLineEdit* editField; QPushButton* searchButton; + QSplitter* split; ConfigView* list; ConfigInfoView* info; @@ -276,10 +307,6 @@ public slots: void showSingleView(void); void showSplitView(void); void showFullView(void); - void setShowAll(bool); - void setShowRange(bool); - void setShowName(bool); - void setShowData(bool); void showIntro(void); void showAbout(void); void saveSettings(void); -- cgit v1.2.3 From ab45d190fd4acf0b0e5d307294ce24a90a69cc23 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:47 -0700 Subject: kconfig: create links in info window Extend the expression print helper function to allow customization of the symbol output and use it to add links to the info window. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/expr.c | 50 +++++++++++++++++++-------------------- scripts/kconfig/lkc_proto.h | 2 +- scripts/kconfig/qconf.cc | 57 +++++++++++++++++++++++++++++++++++++++++---- scripts/kconfig/qconf.h | 4 +++- 4 files changed, 81 insertions(+), 32 deletions(-) diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c index 87238afb21b..6f98dbfe70c 100644 --- a/scripts/kconfig/expr.c +++ b/scripts/kconfig/expr.c @@ -1013,73 +1013,73 @@ int expr_compare_type(enum expr_type t1, enum expr_type t2) #endif } -void expr_print(struct expr *e, void (*fn)(void *, const char *), void *data, int prevtoken) +void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken) { if (!e) { - fn(data, "y"); + fn(data, NULL, "y"); return; } if (expr_compare_type(prevtoken, e->type) > 0) - fn(data, "("); + fn(data, NULL, "("); switch (e->type) { case E_SYMBOL: if (e->left.sym->name) - fn(data, e->left.sym->name); + fn(data, e->left.sym, e->left.sym->name); else - fn(data, ""); + fn(data, NULL, ""); break; case E_NOT: - fn(data, "!"); + fn(data, NULL, "!"); expr_print(e->left.expr, fn, data, E_NOT); break; case E_EQUAL: - fn(data, e->left.sym->name); - fn(data, "="); - fn(data, e->right.sym->name); + fn(data, e->left.sym, e->left.sym->name); + fn(data, NULL, "="); + fn(data, e->right.sym, e->right.sym->name); break; case E_UNEQUAL: - fn(data, e->left.sym->name); - fn(data, "!="); - fn(data, e->right.sym->name); + fn(data, e->left.sym, e->left.sym->name); + fn(data, NULL, "!="); + fn(data, e->right.sym, e->right.sym->name); break; case E_OR: expr_print(e->left.expr, fn, data, E_OR); - fn(data, " || "); + fn(data, NULL, " || "); expr_print(e->right.expr, fn, data, E_OR); break; case E_AND: expr_print(e->left.expr, fn, data, E_AND); - fn(data, " && "); + fn(data, NULL, " && "); expr_print(e->right.expr, fn, data, E_AND); break; case E_CHOICE: - fn(data, e->right.sym->name); + fn(data, e->right.sym, e->right.sym->name); if (e->left.expr) { - fn(data, " ^ "); + fn(data, NULL, " ^ "); expr_print(e->left.expr, fn, data, E_CHOICE); } break; case E_RANGE: - fn(data, "["); - fn(data, e->left.sym->name); - fn(data, " "); - fn(data, e->right.sym->name); - fn(data, "]"); + fn(data, NULL, "["); + fn(data, e->left.sym, e->left.sym->name); + fn(data, NULL, " "); + fn(data, e->right.sym, e->right.sym->name); + fn(data, NULL, "]"); break; default: { char buf[32]; sprintf(buf, "", e->type); - fn(data, buf); + fn(data, NULL, buf); break; } } if (expr_compare_type(prevtoken, e->type) > 0) - fn(data, ")"); + fn(data, NULL, ")"); } -static void expr_print_file_helper(void *data, const char *str) +static void expr_print_file_helper(void *data, struct symbol *sym, const char *str) { fwrite(str, strlen(str), 1, data); } @@ -1089,7 +1089,7 @@ void expr_fprint(struct expr *e, FILE *out) expr_print(e, expr_print_file_helper, out, E_NONE); } -static void expr_print_gstr_helper(void *data, const char *str) +static void expr_print_gstr_helper(void *data, struct symbol *sym, const char *str) { str_append((struct gstr*)data, str); } diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h index e195c455bfe..a263746cfa7 100644 --- a/scripts/kconfig/lkc_proto.h +++ b/scripts/kconfig/lkc_proto.h @@ -39,4 +39,4 @@ P(prop_get_type_name,const char *,(enum prop_type type)); /* expr.c */ P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2)); -P(expr_print,void,(struct expr *e, void (*fn)(void *, const char *), void *data, int prevtoken)); +P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken)); diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc index f3f86e735a8..425ce5ce2d1 100644 --- a/scripts/kconfig/qconf.cc +++ b/scripts/kconfig/qconf.cc @@ -925,6 +925,8 @@ void ConfigInfoView::setShowDebug(bool b) _showDebug = b; if (menu) menuInfo(); + else if (sym) + symbolInfo(); emit showDebugChanged(b); } } @@ -943,15 +945,44 @@ void ConfigInfoView::setSource(const QString& name) const char *p = name.latin1(); menu = NULL; + sym = NULL; switch (p[0]) { case 'm': - if (sscanf(p, "m%p", &menu) == 1) + struct menu *m; + + if (sscanf(p, "m%p", &m) == 1 && menu != m) { + menu = m; menuInfo(); + } + break; + case 's': + struct symbol *s; + + if (sscanf(p, "s%p", &s) == 1 && sym != s) { + sym = s; + symbolInfo(); + } break; } } +void ConfigInfoView::symbolInfo(void) +{ + QString str; + + str += "Symbol: "; + str += print_filter(sym->name); + str += "

value: "; + str += print_filter(sym_get_string_value(sym)); + str += "
visibility: "; + str += sym->visible == yes ? "y" : sym->visible == mod ? "m" : "n"; + str += "
"; + str += debug_info(sym); + + setText(str); +} + void ConfigInfoView::menuInfo(void) { struct symbol* sym; @@ -965,12 +996,20 @@ void ConfigInfoView::menuInfo(void) head += ""; if (sym->name) { head += " ("; + if (showDebug()) + head += QString().sprintf("", sym); head += print_filter(sym->name); + if (showDebug()) + head += ""; head += ")"; } } else if (sym->name) { head += ""; + if (showDebug()) + head += QString().sprintf("", sym); head += print_filter(sym->name); + if (showDebug()) + head += ""; head += ""; } head += "

"; @@ -1015,9 +1054,9 @@ QString ConfigInfoView::debug_info(struct symbol *sym) switch (prop->type) { case P_PROMPT: case P_MENU: - debug += "prompt: "; + debug += QString().sprintf("prompt: ", prop->menu); debug += print_filter(_(prop->text)); - debug += "
"; + debug += "
"; break; case P_DEFAULT: debug += "default: "; @@ -1088,9 +1127,17 @@ QString ConfigInfoView::print_filter(const QString &str) return res; } -void ConfigInfoView::expr_print_help(void *data, const char *str) +void ConfigInfoView::expr_print_help(void *data, struct symbol *sym, const char *str) { - reinterpret_cast(data)->append(print_filter(str)); + QString* text = reinterpret_cast(data); + QString str2 = print_filter(str); + + if (sym && sym->name && !(sym->flags & SYMBOL_CONST)) { + *text += QString().sprintf("", sym); + *text += str2; + *text += ""; + } else + *text += str2; } QPopupMenu* ConfigInfoView::createPopupMenu(const QPoint& pos) diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h index fb50e1c6029..b824f78cc06 100644 --- a/scripts/kconfig/qconf.h +++ b/scripts/kconfig/qconf.h @@ -260,13 +260,15 @@ signals: void showDebugChanged(bool); protected: + void symbolInfo(void); void menuInfo(void); QString debug_info(struct symbol *sym); static QString print_filter(const QString &str); - static void expr_print_help(void *data, const char *str); + static void expr_print_help(void *data, struct symbol *sym, const char *str); QPopupMenu* createPopupMenu(const QPoint& pos); void contentsContextMenuEvent(QContextMenuEvent *e); + struct symbol *sym; struct menu *menu; bool _showDebug; }; -- cgit v1.2.3 From b65a47e1ac494777d853d7952cef611eedc22037 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:47 -0700 Subject: kconfig: jump to linked menu prompt If clicking on of the links, which leads to a visible prompt, jump to it in the symbol list. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/qconf.cc | 109 +++++++++++++++++++++++++++++++++++------------ scripts/kconfig/qconf.h | 6 ++- 2 files changed, 86 insertions(+), 29 deletions(-) diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc index 425ce5ce2d1..393f3749f33 100644 --- a/scripts/kconfig/qconf.cc +++ b/scripts/kconfig/qconf.cc @@ -381,6 +381,18 @@ void ConfigList::saveSettings(void) } } +ConfigItem* ConfigList::findConfigItem(struct menu *menu) +{ + ConfigItem* item = (ConfigItem*)menu->data; + + for (; item; item = item->nextItem) { + if (this == item->listView()) + break; + } + + return item; +} + void ConfigList::updateSelection(void) { struct menu *menu; @@ -524,6 +536,7 @@ void ConfigList::setRootMenu(struct menu *menu) rootEntry = menu; updateListAll(); setSelected(currentItem(), hasFocus()); + ensureItemVisible(currentItem()); } void ConfigList::setParentMenu(void) @@ -766,14 +779,16 @@ skip: void ConfigList::focusInEvent(QFocusEvent *e) { - Parent::focusInEvent(e); + struct menu *menu = NULL; - QListViewItem* item = currentItem(); - if (!item) - return; + Parent::focusInEvent(e); - setSelected(item, TRUE); - emit gotFocus(); + ConfigItem* item = (ConfigItem *)currentItem(); + if (item) { + setSelected(item, TRUE); + menu = item->menu; + } + emit gotFocus(menu); } void ConfigList::contextMenuEvent(QContextMenuEvent *e) @@ -933,6 +948,8 @@ void ConfigInfoView::setShowDebug(bool b) void ConfigInfoView::setInfo(struct menu *m) { + if (menu == m) + return; menu = m; if (!menu) clear(); @@ -954,6 +971,7 @@ void ConfigInfoView::setSource(const QString& name) if (sscanf(p, "m%p", &m) == 1 && menu != m) { menu = m; menuInfo(); + emit menuSelected(menu); } break; case 's': @@ -1380,10 +1398,14 @@ ConfigMainWindow::ConfigMainWindow(void) connect(menuList, SIGNAL(menuSelected(struct menu *)), SLOT(changeMenu(struct menu *))); - connect(configList, SIGNAL(gotFocus(void)), - SLOT(listFocusChanged(void))); - connect(menuList, SIGNAL(gotFocus(void)), + connect(configList, SIGNAL(gotFocus(struct menu *)), + helpText, SLOT(setInfo(struct menu *))); + connect(menuList, SIGNAL(gotFocus(struct menu *)), + helpText, SLOT(setInfo(struct menu *))); + connect(menuList, SIGNAL(gotFocus(struct menu *)), SLOT(listFocusChanged(void))); + connect(helpText, SIGNAL(menuSelected(struct menu *)), + SLOT(setMenuLink(struct menu *))); QString listMode = configSettings->readEntry("/listMode", "symbol"); if (listMode == "single") @@ -1403,18 +1425,6 @@ ConfigMainWindow::ConfigMainWindow(void) split2->setSizes(sizes); } -/* - * display a new help entry as soon as a new menu entry is selected - */ -void ConfigMainWindow::setHelp(QListViewItem* item) -{ - struct menu* menu = 0; - - if (item) - menu = ((ConfigItem*)item)->menu; - helpText->setInfo(menu); -} - void ConfigMainWindow::loadConfig(void) { QString s = QFileDialog::getOpenFileName(".config", NULL, this); @@ -1453,17 +1463,62 @@ void ConfigMainWindow::changeMenu(struct menu *menu) backAction->setEnabled(TRUE); } -void ConfigMainWindow::listFocusChanged(void) +void ConfigMainWindow::setMenuLink(struct menu *menu) { - if (menuList->hasFocus()) { - if (menuList->mode == menuMode) + struct menu *parent; + ConfigList* list = NULL; + ConfigItem* item; + + if (!menu_is_visible(menu) && !configView->showAll()) + return; + + switch (configList->mode) { + case singleMode: + list = configList; + parent = menu_get_parent_menu(menu); + if (!parent) + return; + list->setRootMenu(parent); + break; + case symbolMode: + if (menu->flags & MENU_ROOT) { + configList->setRootMenu(menu); configList->clearSelection(); - setHelp(menuList->selectedItem()); - } else if (configList->hasFocus()) { - setHelp(configList->selectedItem()); + list = menuList; + } else { + list = configList; + parent = menu_get_parent_menu(menu->parent); + if (!parent) + return; + item = menuList->findConfigItem(parent); + if (item) { + menuList->setSelected(item, TRUE); + menuList->ensureItemVisible(item); + } + list->setRootMenu(parent); + } + break; + case fullMode: + list = configList; + break; + } + + if (list) { + item = list->findConfigItem(menu); + if (item) { + list->setSelected(item, TRUE); + list->ensureItemVisible(item); + list->setFocus(); + } } } +void ConfigMainWindow::listFocusChanged(void) +{ + if (menuList->mode == menuMode) + configList->clearSelection(); +} + void ConfigMainWindow::goBack(void) { ConfigItem* item; diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h index b824f78cc06..6a9e3b14c22 100644 --- a/scripts/kconfig/qconf.h +++ b/scripts/kconfig/qconf.h @@ -55,6 +55,7 @@ public: { return (ConfigView*)Parent::parent(); } + ConfigItem* findConfigItem(struct menu *); protected: void keyPressEvent(QKeyEvent *e); @@ -77,7 +78,7 @@ signals: void menuChanged(struct menu *menu); void menuSelected(struct menu *menu); void parentSelected(void); - void gotFocus(void); + void gotFocus(struct menu *); public: void updateListAll(void) @@ -258,6 +259,7 @@ public slots: signals: void showDebugChanged(bool); + void menuSelected(struct menu *); protected: void symbolInfo(void); @@ -298,8 +300,8 @@ class ConfigMainWindow : public QMainWindow { public: ConfigMainWindow(void); public slots: - void setHelp(QListViewItem* item); void changeMenu(struct menu *); + void setMenuLink(struct menu *); void listFocusChanged(void); void goBack(void); void loadConfig(void); -- cgit v1.2.3 From f001f7f89689d3226678ab3986f3a486f54aa069 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:48 -0700 Subject: kconfig: warn about leading whitespace for menu prompts Kconfig does its own indentation of menu prompts, so warn about and ignore leading whitespace. Remove also a few unnecessary newlines after other warning prints. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/menu.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c index a8afce24fb1..c86c27f2c76 100644 --- a/scripts/kconfig/menu.c +++ b/scripts/kconfig/menu.c @@ -114,7 +114,7 @@ void menu_set_type(int type) sym->type = type; return; } - menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'\n", + menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'", sym->name ? sym->name : "", sym_type_name(sym->type), sym_type_name(type)); } @@ -124,15 +124,20 @@ struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *e struct property *prop = prop_alloc(type, current_entry->sym); prop->menu = current_entry; - prop->text = prompt; prop->expr = expr; prop->visible.expr = menu_check_dep(dep); if (prompt) { + if (isspace(*prompt)) { + prop_warn(prop, "leading whitespace ignored"); + while (isspace(*prompt)) + prompt++; + } if (current_entry->prompt) - menu_warn(current_entry, "prompt redefined\n"); + prop_warn(prop, "prompt redefined"); current_entry->prompt = prop; } + prop->text = prompt; return prop; } @@ -343,11 +348,10 @@ void menu_finalize(struct menu *parent) if (sym && !(sym->flags & SYMBOL_WARNED)) { if (sym->type == S_UNKNOWN) - menu_warn(parent, "config symbol defined " - "without type\n"); + menu_warn(parent, "config symbol defined without type"); if (sym_is_choice(sym) && !parent->prompt) - menu_warn(parent, "choice must have a prompt\n"); + menu_warn(parent, "choice must have a prompt"); /* Check properties connected to this symbol */ sym_check_prop(sym); -- cgit v1.2.3 From e55a3e8aed99626dd9a9a6732fc0eb5b75ef29bd Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:49 -0700 Subject: kconfig: remove leading whitespace in menu prompts This removes all the leading whitespace kconfig now warns about. Signed-off-by: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- drivers/mtd/Kconfig | 4 ++-- drivers/mtd/maps/Kconfig | 2 +- drivers/scsi/Kconfig | 10 +++++----- sound/oss/Kconfig | 2 +- 4 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index f6b775e63ac..0fe0b61ef00 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -86,14 +86,14 @@ config MTD_REDBOOT_DIRECTORY_BLOCK block and "-2" means the penultimate block. config MTD_REDBOOT_PARTS_UNALLOCATED - bool " Include unallocated flash regions" + bool "Include unallocated flash regions" depends on MTD_REDBOOT_PARTS help If you need to register each unallocated flash region as a MTD 'partition', enable this option. config MTD_REDBOOT_PARTS_READONLY - bool " Force read-only for RedBoot system images" + bool "Force read-only for RedBoot system images" depends on MTD_REDBOOT_PARTS help If you need to force read-only for 'RedBoot', 'RedBoot Config' and diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 7abd7fee0dd..97b3e0d2086 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -212,7 +212,7 @@ config MTD_NETtel Support for flash chips on NETtel/SecureEdge/SnapGear boards. config MTD_ALCHEMY - tristate ' AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support' + tristate "AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support" depends on SOC_AU1X00 help Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index a480a3742d4..3e254560df4 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1159,7 +1159,7 @@ config SCSI_NCR_Q720 you do not have this SCSI card, so say N. config SCSI_NCR53C8XX_DEFAULT_TAGS - int " default tagged command queue depth" + int "default tagged command queue depth" depends on SCSI_ZALON || SCSI_NCR_Q720 default "8" ---help--- @@ -1185,7 +1185,7 @@ config SCSI_NCR53C8XX_DEFAULT_TAGS There is no safe option other than using good SCSI devices. config SCSI_NCR53C8XX_MAX_TAGS - int " maximum number of queued commands" + int "maximum number of queued commands" depends on SCSI_ZALON || SCSI_NCR_Q720 default "32" ---help--- @@ -1202,7 +1202,7 @@ config SCSI_NCR53C8XX_MAX_TAGS There is no safe option and the default answer is recommended. config SCSI_NCR53C8XX_SYNC - int " synchronous transfers frequency in MHz" + int "synchronous transfers frequency in MHz" depends on SCSI_ZALON || SCSI_NCR_Q720 default "20" ---help--- @@ -1236,7 +1236,7 @@ config SCSI_NCR53C8XX_SYNC terminations and SCSI conformant devices. config SCSI_NCR53C8XX_PROFILE - bool " enable profiling" + bool "enable profiling" depends on SCSI_ZALON || SCSI_NCR_Q720 help This option allows you to enable profiling information gathering. @@ -1247,7 +1247,7 @@ config SCSI_NCR53C8XX_PROFILE The normal answer therefore is N. config SCSI_NCR53C8XX_NO_DISCONNECT - bool " not allow targets to disconnect" + bool "not allow targets to disconnect" depends on (SCSI_ZALON || SCSI_NCR_Q720) && SCSI_NCR53C8XX_DEFAULT_TAGS=0 help This option is only provided for safety if you suspect some SCSI diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig index 558c6ed443b..e5bce16b0c4 100644 --- a/sound/oss/Kconfig +++ b/sound/oss/Kconfig @@ -838,6 +838,6 @@ config SOUND_SH_DAC_AUDIO depends on SOUND_PRIME && CPU_SH3 config SOUND_SH_DAC_AUDIO_CHANNEL - int " DAC channel" + int "DAC channel" default "1" depends on SOUND_SH_DAC_AUDIO -- cgit v1.2.3 From 250725aa13f5c9595e5bc265ebed8471e816d8b4 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 8 Jun 2006 22:12:50 -0700 Subject: kconfig: exit if no beginning filename If the beginning Kconfig file is missing, config segfaults so it might as well exit after the error message. Signed-off-by: Randy Dunlap Cc: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/kconfig/conf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c index ded5ffe184b..4dcb8867b5f 100644 --- a/scripts/kconfig/conf.c +++ b/scripts/kconfig/conf.c @@ -539,6 +539,7 @@ int main(int ac, char **av) name = av[i]; if (!name) { printf(_("%s: Kconfig file missing\n"), av[0]); + exit(1); } conf_parse(name); //zconfdump(stdout); -- cgit v1.2.3 From 14cdd3c402bf7c66f0bcd76e290f0770a54a4b21 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:51 -0700 Subject: kconfig: KCONFIG_OVERWRITECONFIG If you set KCONFIG_OVERWRITECONFIG in environment, Kconfig will not break symlinks when .config is a symlink to somewhere else. Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- Makefile | 6 ++++-- scripts/kconfig/confdata.c | 46 +++++++++++++++++++++++++++++----------------- scripts/kconfig/lkc.h | 2 -- 3 files changed, 33 insertions(+), 21 deletions(-) diff --git a/Makefile b/Makefile index 3c55de99ed3..3cb9270c584 100644 --- a/Makefile +++ b/Makefile @@ -178,6 +178,8 @@ CROSS_COMPILE ?= # Architecture as present in compile.h UTS_MACHINE := $(ARCH) +KCONFIG_CONFIG ?= .config + # SHELL used by kbuild CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ @@ -437,13 +439,13 @@ ifeq ($(dot-config),1) -include include/config/auto.conf # To avoid any implicit rule to kick in, define an empty command -.config include/config/auto.conf.cmd: ; +$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; # If .config is newer than include/config/auto.conf, someone tinkered # with it and forgot to run make oldconfig. # if auto.conf.cmd is missing then we are probarly in a cleaned tree so # we execute the config step to be sure to catch updated Kconfig files -include/config/auto.conf: .config include/config/auto.conf.cmd +include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig else diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 5bd66f45118..2ee48c377b6 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -21,8 +21,6 @@ static void conf_warning(const char *fmt, ...) static const char *conf_filename; static int conf_lineno, conf_warnings, conf_unsaved; -const char conf_def_filename[] = ".config"; - const char conf_defname[] = "arch/$ARCH/defconfig"; static void conf_warning(const char *fmt, ...) @@ -36,6 +34,13 @@ static void conf_warning(const char *fmt, ...) conf_warnings++; } +const char *conf_get_configname(void) +{ + char *name = getenv("KCONFIG_CONFIG"); + + return name ? name : ".config"; +} + static char *conf_expand_value(const char *in) { struct symbol *sym; @@ -91,7 +96,7 @@ int conf_read_simple(const char *name, int def) } else { struct property *prop; - name = conf_def_filename; + name = conf_get_configname(); in = zconf_fopen(name); if (in) goto load; @@ -381,7 +386,7 @@ int conf_write(const char *name) if (!stat(name, &st) && S_ISDIR(st.st_mode)) { strcpy(dirname, name); strcat(dirname, "/"); - basename = conf_def_filename; + basename = conf_get_configname(); } else if ((slash = strrchr(name, '/'))) { int size = slash - name + 1; memcpy(dirname, name, size); @@ -389,16 +394,24 @@ int conf_write(const char *name) if (slash[1]) basename = slash + 1; else - basename = conf_def_filename; + basename = conf_get_configname(); } else basename = name; } else - basename = conf_def_filename; + basename = conf_get_configname(); - sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid()); - out = fopen(newname, "w"); + sprintf(newname, "%s%s", dirname, basename); + env = getenv("KCONFIG_OVERWRITECONFIG"); + if (!env || !*env) { + sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); + out = fopen(tmpname, "w"); + } else { + *tmpname = 0; + out = fopen(newname, "w"); + } if (!out) return 1; + sym = sym_lookup("KERNELVERSION", 0); sym_calc_value(sym); time(&now); @@ -498,19 +511,18 @@ int conf_write(const char *name) } } fclose(out); - if (!name || basename != conf_def_filename) { - if (!name) - name = conf_def_filename; - sprintf(tmpname, "%s.old", name); - rename(name, tmpname); + + if (*tmpname) { + strcat(dirname, name ? name : conf_get_configname()); + strcat(dirname, ".old"); + rename(newname, dirname); + if (rename(tmpname, newname)) + return 1; } - sprintf(tmpname, "%s%s", dirname, basename); - if (rename(newname, tmpname)) - return 1; printf(_("#\n" "# configuration written to %s\n" - "#\n"), tmpname); + "#\n"), newname); sym_change_count = 0; diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h index 2d3d4ed3c9f..2628023a1fe 100644 --- a/scripts/kconfig/lkc.h +++ b/scripts/kconfig/lkc.h @@ -64,8 +64,6 @@ int zconf_lineno(void); char *zconf_curname(void); /* confdata.c */ -extern const char conf_def_filename[]; - char *conf_get_default_confname(void); /* kconfig_load.c */ -- cgit v1.2.3 From c30a02e022576c1b49a6c9b39ad83559167399c6 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Thu, 8 Jun 2006 22:12:50 -0700 Subject: kbuild: `make kernelrelease' speedup Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- Makefile | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index 3cb9270c584..abc0051d259 100644 --- a/Makefile +++ b/Makefile @@ -364,7 +364,8 @@ endif # of make so .config is not included in this case either (for *config). no-dot-config-targets := clean mrproper distclean \ - cscope TAGS tags help %docs check% + cscope TAGS tags help %docs check% \ + kernelrelease kernelversion config-targets := 0 mixed-targets := 0 @@ -1248,7 +1249,7 @@ namespacecheck: endif #ifeq ($(config-targets),1) endif #ifeq ($(mixed-targets),1) -PHONY += checkstack +PHONY += checkstack kernelrelease kernelversion checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ $(PERL) $(src)/scripts/checkstack.pl $(ARCH) -- cgit v1.2.3 From 031ecc6de7d17752c57720a118a37e97a8454872 Mon Sep 17 00:00:00 2001 From: Zach Brown Date: Thu, 8 Jun 2006 22:12:37 -0700 Subject: kbuild: add dependency on kernel.release to the package targets The binrpm-pkg target uses KERNELRELEASE when generated its .spec file. When binrpm-pkg was the first build target run in a tree it generated the .spec before kernel.release so the Version: tag in the .spec was empty. I don't know if this is the best fix, but binrpm-pkg works when we explicitly build kernel.release before descending into package-dir. Signed-off-by: Zach Brown Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index abc0051d259..818d1950e22 100644 --- a/Makefile +++ b/Makefile @@ -984,9 +984,9 @@ distclean: mrproper # rpm target kept for backward compatibility package-dir := $(srctree)/scripts/package -%pkg: FORCE +%pkg: include/config/kernel.release FORCE $(Q)$(MAKE) $(build)=$(package-dir) $@ -rpm: FORCE +rpm: include/config/kernel.release FORCE $(Q)$(MAKE) $(build)=$(package-dir) $@ -- cgit v1.2.3 From bd5cbcedf446e2f37cf2a37f533a7e1d7dff9312 Mon Sep 17 00:00:00 2001 From: Ram Pai Date: Thu, 8 Jun 2006 22:12:53 -0700 Subject: kbuild: export-type enhancement to modpost.c This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher Signed-off-by: Ram Pai Signed-off-by: Avantika Mathur Signed-off-by: Valdis Kletnieks Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/mod/modpost.c | 93 ++++++++++++++++++++++++++++++++++++++++++--------- scripts/mod/modpost.h | 3 ++ 2 files changed, 80 insertions(+), 16 deletions(-) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index a70f5ddb705..ba2e4fc2af2 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -22,6 +22,8 @@ int have_vmlinux = 0; static int all_versions = 0; /* If we are modposting external module set to 1 */ static int external_module = 0; +/* How a symbol is exported */ +enum export {export_plain, export_gpl, export_gpl_future, export_unknown}; void fatal(const char *fmt, ...) { @@ -118,6 +120,7 @@ struct symbol { unsigned int kernel:1; /* 1 if symbol is from kernel * (only for external modules) **/ unsigned int preloaded:1; /* 1 if symbol from Module.symvers */ + enum export export; /* Type of export */ char name[0]; }; @@ -153,7 +156,8 @@ static struct symbol *alloc_symbol(const char *name, unsigned int weak, } /* For the hash of exported symbols */ -static struct symbol *new_symbol(const char *name, struct module *module) +static struct symbol *new_symbol(const char *name, struct module *module, + enum export export) { unsigned int hash; struct symbol *new; @@ -161,6 +165,7 @@ static struct symbol *new_symbol(const char *name, struct module *module) hash = tdb_hash(name) % SYMBOL_HASH_SIZE; new = symbolhash[hash] = alloc_symbol(name, 0, symbolhash[hash]); new->module = module; + new->export = export; return new; } @@ -179,16 +184,55 @@ static struct symbol *find_symbol(const char *name) return NULL; } +static struct { + const char *str; + enum export export; +} export_list[] = { + { .str = "EXPORT_SYMBOL", .export = export_plain }, + { .str = "EXPORT_SYMBOL_GPL", .export = export_gpl }, + { .str = "EXPORT_SYMBOL_GPL_FUTURE", .export = export_gpl_future }, + { .str = "(unknown)", .export = export_unknown }, +}; + + +static const char *export_str(enum export ex) +{ + return export_list[ex].str; +} + +static enum export export_no(const char * s) +{ + int i; + for (i = 0; export_list[i].export != export_unknown; i++) { + if (strcmp(export_list[i].str, s) == 0) + return export_list[i].export; + } + return export_unknown; +} + +static enum export export_from_sec(struct elf_info *elf, Elf_Section sec) +{ + if (sec == elf->export_sec) + return export_plain; + else if (sec == elf->export_gpl_sec) + return export_gpl; + else if (sec == elf->export_gpl_future_sec) + return export_gpl_future; + else + return export_unknown; +} + /** * Add an exported symbol - it may have already been added without a * CRC, in this case just update the CRC **/ -static struct symbol *sym_add_exported(const char *name, struct module *mod) +static struct symbol *sym_add_exported(const char *name, struct module *mod, + enum export export) { struct symbol *s = find_symbol(name); if (!s) { - s = new_symbol(name, mod); + s = new_symbol(name, mod, export); } else { if (!s->preloaded) { warn("%s: '%s' exported twice. Previous export " @@ -200,16 +244,17 @@ static struct symbol *sym_add_exported(const char *name, struct module *mod) s->preloaded = 0; s->vmlinux = is_vmlinux(mod->name); s->kernel = 0; + s->export = export; return s; } static void sym_update_crc(const char *name, struct module *mod, - unsigned int crc) + unsigned int crc, enum export export) { struct symbol *s = find_symbol(name); if (!s) - s = new_symbol(name, mod); + s = new_symbol(name, mod, export); s->crc = crc; s->crc_valid = 1; } @@ -309,13 +354,21 @@ static void parse_elf(struct elf_info *info, const char *filename) for (i = 1; i < hdr->e_shnum; i++) { const char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + const char *secname; if (sechdrs[i].sh_offset > info->size) goto truncated; - if (strcmp(secstrings+sechdrs[i].sh_name, ".modinfo") == 0) { + secname = secstrings + sechdrs[i].sh_name; + if (strcmp(secname, ".modinfo") == 0) { info->modinfo = (void *)hdr + sechdrs[i].sh_offset; info->modinfo_len = sechdrs[i].sh_size; - } + } else if (strcmp(secname, "__ksymtab") == 0) + info->export_sec = i; + else if (strcmp(secname, "__ksymtab_gpl") == 0) + info->export_gpl_sec = i; + else if (strcmp(secname, "__ksymtab_gpl_future") == 0) + info->export_gpl_future_sec = i; + if (sechdrs[i].sh_type != SHT_SYMTAB) continue; @@ -353,6 +406,7 @@ static void handle_modversions(struct module *mod, struct elf_info *info, Elf_Sym *sym, const char *symname) { unsigned int crc; + enum export export = export_from_sec(info, sym->st_shndx); switch (sym->st_shndx) { case SHN_COMMON: @@ -362,7 +416,8 @@ static void handle_modversions(struct module *mod, struct elf_info *info, /* CRC'd symbol */ if (memcmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) { crc = (unsigned int) sym->st_value; - sym_update_crc(symname + strlen(CRC_PFX), mod, crc); + sym_update_crc(symname + strlen(CRC_PFX), mod, crc, + export); } break; case SHN_UNDEF: @@ -406,7 +461,8 @@ static void handle_modversions(struct module *mod, struct elf_info *info, default: /* All exported symbols */ if (memcmp(symname, KSYMTAB_PFX, strlen(KSYMTAB_PFX)) == 0) { - sym_add_exported(symname + strlen(KSYMTAB_PFX), mod); + sym_add_exported(symname + strlen(KSYMTAB_PFX), mod, + export); } if (strcmp(symname, MODULE_SYMBOL_PREFIX "init_module") == 0) mod->has_init = 1; @@ -1146,6 +1202,9 @@ static void write_if_changed(struct buffer *b, const char *fname) fclose(file); } +/* parse Module.symvers file. line format: + * 0x12345678symbolmodule[export] + **/ static void read_dump(const char *fname, unsigned int kernel) { unsigned long size, pos = 0; @@ -1157,7 +1216,7 @@ static void read_dump(const char *fname, unsigned int kernel) return; while ((line = get_next_line(&pos, file, size))) { - char *symname, *modname, *d; + char *symname, *modname, *d, *export; unsigned int crc; struct module *mod; struct symbol *s; @@ -1168,8 +1227,9 @@ static void read_dump(const char *fname, unsigned int kernel) if (!(modname = strchr(symname, '\t'))) goto fail; *modname++ = '\0'; - if (strchr(modname, '\t')) - goto fail; + if (!(export = strchr(modname, '\t'))) + *export++ = '\0'; + crc = strtoul(line, &d, 16); if (*symname == '\0' || *modname == '\0' || *d != '\0') goto fail; @@ -1181,10 +1241,10 @@ static void read_dump(const char *fname, unsigned int kernel) mod = new_module(NOFAIL(strdup(modname))); mod->skip = 1; } - s = sym_add_exported(symname, mod); + s = sym_add_exported(symname, mod, export_no(export)); s->kernel = kernel; s->preloaded = 1; - sym_update_crc(symname, mod, crc); + sym_update_crc(symname, mod, crc, export_no(export)); } return; fail: @@ -1214,9 +1274,10 @@ static void write_dump(const char *fname) symbol = symbolhash[n]; while (symbol) { if (dump_sym(symbol)) - buf_printf(&buf, "0x%08x\t%s\t%s\n", + buf_printf(&buf, "0x%08x\t%s\t%s\t%s\n", symbol->crc, symbol->name, - symbol->module->name); + symbol->module->name, + export_str(symbol->export)); symbol = symbol->next; } } diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 861d866fcd8..f7ee3a3fde1 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -115,6 +115,9 @@ struct elf_info { Elf_Shdr *sechdrs; Elf_Sym *symtab_start; Elf_Sym *symtab_stop; + Elf_Section export_sec; + Elf_Section export_gpl_sec; + Elf_Section export_gpl_future_sec; const char *strtab; char *modinfo; unsigned int modinfo_len; -- cgit v1.2.3 From b817f6feff4a565b08f0e699a5790b4008b8f494 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 9 Jun 2006 21:53:55 +0200 Subject: kbuild: check license compatibility when building modules Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher and Ram Pai Signed-off-by: Sam Ravnborg --- include/linux/license.h | 14 ++++++++++ kernel/module.c | 11 +------- scripts/mod/modpost.c | 71 +++++++++++++++++++++++++++++++++++++++++++++++-- scripts/mod/modpost.h | 1 + 4 files changed, 85 insertions(+), 12 deletions(-) create mode 100644 include/linux/license.h diff --git a/include/linux/license.h b/include/linux/license.h new file mode 100644 index 00000000000..decdbf43cb5 --- /dev/null +++ b/include/linux/license.h @@ -0,0 +1,14 @@ +#ifndef __LICENSE_H +#define __LICENSE_H + +static inline int license_is_gpl_compatible(const char *license) +{ + return (strcmp(license, "GPL") == 0 + || strcmp(license, "GPL v2") == 0 + || strcmp(license, "GPL and additional rights") == 0 + || strcmp(license, "Dual BSD/GPL") == 0 + || strcmp(license, "Dual MIT/GPL") == 0 + || strcmp(license, "Dual MPL/GPL") == 0); +} + +#endif diff --git a/kernel/module.c b/kernel/module.c index bbe04862e1b..690381508d0 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -43,6 +43,7 @@ #include #include #include +#include #if 0 #define DEBUGP printk @@ -1248,16 +1249,6 @@ static void layout_sections(struct module *mod, } } -static inline int license_is_gpl_compatible(const char *license) -{ - return (strcmp(license, "GPL") == 0 - || strcmp(license, "GPL v2") == 0 - || strcmp(license, "GPL and additional rights") == 0 - || strcmp(license, "Dual BSD/GPL") == 0 - || strcmp(license, "Dual MIT/GPL") == 0 - || strcmp(license, "Dual MPL/GPL") == 0); -} - static void set_license(struct module *mod, const char *license) { if (!license) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index ba2e4fc2af2..baa4d83d29a 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -13,6 +13,7 @@ #include #include "modpost.h" +#include "../../include/linux/license.h" /* Are we using CONFIG_MODVERSIONS? */ int modversions = 0; @@ -99,6 +100,7 @@ static struct module *new_module(char *modname) /* add to list */ mod->name = p; + mod->gpl_compatible = -1; mod->next = modules; modules = mod; @@ -493,13 +495,18 @@ static char *next_string(char *string, unsigned long *secsize) return string; } -static char *get_modinfo(void *modinfo, unsigned long modinfo_len, - const char *tag) +static char *get_next_modinfo(void *modinfo, unsigned long modinfo_len, + const char *tag, char *info) { char *p; unsigned int taglen = strlen(tag); unsigned long size = modinfo_len; + if (info) { + size -= info - (char *)modinfo; + modinfo = next_string(info, &size); + } + for (p = modinfo; p; p = next_string(p, &size)) { if (strncmp(p, tag, taglen) == 0 && p[taglen] == '=') return p + taglen + 1; @@ -507,6 +514,13 @@ static char *get_modinfo(void *modinfo, unsigned long modinfo_len, return NULL; } +static char *get_modinfo(void *modinfo, unsigned long modinfo_len, + const char *tag) + +{ + return get_next_modinfo(modinfo, modinfo_len, tag, NULL); +} + /** * Test if string s ends in string sub * return 0 if match @@ -981,6 +995,7 @@ static void read_symbols(char *modname) { const char *symname; char *version; + char *license; struct module *mod; struct elf_info info = { }; Elf_Sym *sym; @@ -996,6 +1011,18 @@ static void read_symbols(char *modname) mod->skip = 1; } + license = get_modinfo(info.modinfo, info.modinfo_len, "license"); + while (license) { + if (license_is_gpl_compatible(license)) + mod->gpl_compatible = 1; + else { + mod->gpl_compatible = 0; + break; + } + license = get_next_modinfo(info.modinfo, info.modinfo_len, + "license", license); + } + for (sym = info.symtab_start; sym < info.symtab_stop; sym++) { symname = info.strtab + sym->st_name; @@ -1052,6 +1079,40 @@ void buf_write(struct buffer *buf, const char *s, int len) buf->pos += len; } +void check_license(struct module *mod) +{ + struct symbol *s, *exp; + + for (s = mod->unres; s; s = s->next) { + if (mod->gpl_compatible == 1) { + /* GPL-compatible modules may use all symbols */ + continue; + } + exp = find_symbol(s->name); + if (!exp || exp->module == mod) + continue; + const char *basename = strrchr(mod->name, '/'); + if (basename) + basename++; + switch (exp->export) { + case export_gpl: + fatal("modpost: GPL-incompatible module %s " + "uses GPL-only symbol '%s'\n", + basename ? basename : mod->name, + exp->name); + break; + case export_gpl_future: + warn("modpost: GPL-incompatible module %s " + "uses future GPL-only symbol '%s'\n", + basename ? basename : mod->name, + exp->name); + break; + case export_plain: /* ignore */ break; + case export_unknown: /* ignore */ break; + } + } +} + /** * Header for the generated file **/ @@ -1325,6 +1386,12 @@ int main(int argc, char **argv) read_symbols(argv[optind++]); } + for (mod = modules; mod; mod = mod->next) { + if (mod->skip) + continue; + check_license(mod); + } + for (mod = modules; mod; mod = mod->next) { if (mod->skip) continue; diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index f7ee3a3fde1..2b00c606284 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -100,6 +100,7 @@ buf_write(struct buffer *buf, const char *s, int len); struct module { struct module *next; const char *name; + int gpl_compatible; struct symbol *unres; int seen; int skip; -- cgit v1.2.3 From 6449bd621ba51ef652ac5bda632eeabbc18dd296 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 9 Jun 2006 20:45:06 -0700 Subject: kbuild: modpost build fix scripts/mod/modpost.c: In function `check_license': scripts/mod/modpost.c:1094: parse error before `const' scripts/mod/modpost.c:1095: `basename' undeclared (first use in this function) scripts/mod/modpost.c:1095: (Each undeclared identifier is reported only once scripts/mod/modpost.c:1095: for each function it appears in.) Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg --- scripts/mod/modpost.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index baa4d83d29a..f27ddb841df 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1084,6 +1084,7 @@ void check_license(struct module *mod) struct symbol *s, *exp; for (s = mod->unres; s; s = s->next) { + const char *basename; if (mod->gpl_compatible == 1) { /* GPL-compatible modules may use all symbols */ continue; @@ -1091,7 +1092,7 @@ void check_license(struct module *mod) exp = find_symbol(s->name); if (!exp || exp->module == mod) continue; - const char *basename = strrchr(mod->name, '/'); + basename = strrchr(mod->name, '/'); if (basename) basename++; switch (exp->export) { -- cgit v1.2.3 From ff5417107b7615fcef772cabcb717f4a715ffadc Mon Sep 17 00:00:00 2001 From: Nickolay Date: Fri, 9 Jun 2006 21:24:14 +0400 Subject: kbuild: bugfix with initramfs This patch fix double inclusion of ramfs-input. Signed-off-by: Nickolay Vinogradov Signed-off-by: Sam Ravnborg --- usr/Makefile | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/usr/Makefile b/usr/Makefile index 19d74e6f268..e93824269da 100644 --- a/usr/Makefile +++ b/usr/Makefile @@ -21,8 +21,7 @@ ramfs-input := $(if $(filter-out "",$(CONFIG_INITRAMFS_SOURCE)), \ $(CONFIG_INITRAMFS_SOURCE),-d) ramfs-args := \ $(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \ - $(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID)) \ - $(ramfs-input) + $(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID)) # .initramfs_data.cpio.gz.d is used to identify all files included # in initramfs and to detect if any files are added/removed. -- cgit v1.2.3 From 566f81ca598f80de03e80a9a743e94b65b4e017e Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 10 Jun 2006 09:15:27 +0200 Subject: kbuild: ignore make's built-in rules & variables kbuild does explicitly specify what to do in all cases, and each time make's built-in rules & variables has been used it has been a bug. So to speed up things and to avoid the hard-to-debug error situations ignore the built-in definitions. If any part of the kernel uses the built-in definitions the build will just stop there and it should be trivial to fix. Signed-off-by: Sam Ravnborg --- Makefile | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index 818d1950e22..1b2fd97f503 100644 --- a/Makefile +++ b/Makefile @@ -267,10 +267,9 @@ MAKEFLAGS += --include-dir=$(srctree) # We need some generic definitions include $(srctree)/scripts/Kbuild.include -# For maximum performance (+ possibly random breakage, uncomment -# the following) - -#MAKEFLAGS += -rR +# Do not use make's built-in rules and variables +# This increases performance and avoid hard-to-debug behaviour +MAKEFLAGS += -rR # Make variables (CC, etc...) -- cgit v1.2.3 From 6344a423e5806d138923caa1d7699f3b7809fe43 Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 12 Jun 2006 04:18:35 +0000 Subject: [CIFS] fix minor compile warning when config_cifs_weak_security is off Signed-off-by: Steve French --- fs/cifs/cifssmb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index acae58313b0..271a037a386 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -569,7 +569,9 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) } else server->capabilities &= ~CAP_EXTENDED_SECURITY; +#ifdef CONFIG_CIFS_WEAK_PW_HASH signing_check: +#endif if(sign_CIFS_PDUs == FALSE) { if(server->secMode & SECMODE_SIGN_REQUIRED) cERROR(1,("Server requires " -- cgit v1.2.3 From 0fd1ffe0633b4b039b343b753598e6df435e034d Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 13 Jun 2006 21:31:39 +0000 Subject: [CIFS] Fix suspend/resume problem which causes EIO on subsequent access to the mount. Signed-off-by: Pavel Machek Signed-off-by: Steve French --- fs/cifs/cifsfs.c | 2 +- fs/cifs/connect.c | 24 ++++++++++++------------ 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 700570522b2..fb7c11c2c91 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -905,7 +905,7 @@ static int cifs_dnotify_thread(void * dummyarg) struct cifsSesInfo *ses; do { - if(try_to_freeze()) + if (try_to_freeze()) continue; set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(15*HZ); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index e6f3d2fff6c..faaf9eb15b9 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -367,21 +367,21 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) continue; if (bigbuf == NULL) { bigbuf = cifs_buf_get(); - if(bigbuf == NULL) { - cERROR(1,("No memory for large SMB response")); + if (!bigbuf) { + cERROR(1, ("No memory for large SMB response")); msleep(3000); /* retry will check if exiting */ continue; } - } else if(isLargeBuf) { - /* we are reusing a dirtry large buf, clear its start */ + } else if (isLargeBuf) { + /* we are reusing a dirty large buf, clear its start */ memset(bigbuf, 0, sizeof (struct smb_hdr)); } if (smallbuf == NULL) { smallbuf = cifs_small_buf_get(); - if(smallbuf == NULL) { - cERROR(1,("No memory for SMB response")); + if (!smallbuf) { + cERROR(1, ("No memory for SMB response")); msleep(1000); /* retry will check if exiting */ continue; @@ -401,12 +401,12 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) kernel_recvmsg(csocket, &smb_msg, &iov, 1, 4, 0 /* BB see socket.h flags */); - if(server->tcpStatus == CifsExiting) { + if (server->tcpStatus == CifsExiting) { break; } else if (server->tcpStatus == CifsNeedReconnect) { - cFYI(1,("Reconnect after server stopped responding")); + cFYI(1, ("Reconnect after server stopped responding")); cifs_reconnect(server); - cFYI(1,("call to reconnect done")); + cFYI(1, ("call to reconnect done")); csocket = server->ssocket; continue; } else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) { @@ -415,15 +415,15 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) tcpStatus CifsNeedReconnect if server hung */ continue; } else if (length <= 0) { - if(server->tcpStatus == CifsNew) { - cFYI(1,("tcp session abend after SMBnegprot")); + if (server->tcpStatus == CifsNew) { + cFYI(1, ("tcp session abend after SMBnegprot")); /* some servers kill the TCP session rather than returning an SMB negprot error, in which case reconnecting here is not going to help, and so simply return error to mount */ break; } - if(length == -EINTR) { + if (!try_to_freeze() && (length == -EINTR)) { cFYI(1,("cifsd thread killed")); break; } -- cgit v1.2.3 From 9ac545b0f7161eaf2e180acc406c1dd6fdd77686 Mon Sep 17 00:00:00 2001 From: Laurent Riffard Date: Sun, 11 Jun 2006 08:02:06 +0200 Subject: kbuild: fix module.symvers parsing in modpost read_dump didn't split lines between module name and export type. Signed-off-by: Laurent Riffard Signed-off-by: Sam Ravnborg --- scripts/mod/modpost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index f27ddb841df..d03c9fff5b2 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1289,7 +1289,7 @@ static void read_dump(const char *fname, unsigned int kernel) if (!(modname = strchr(symname, '\t'))) goto fail; *modname++ = '\0'; - if (!(export = strchr(modname, '\t'))) + if ((export = strchr(modname, '\t')) != NULL) *export++ = '\0'; crc = strtoul(line, &d, 16); -- cgit v1.2.3 From 29b0c89953fee8597b4a9cbdd763c294ae0eb4c7 Mon Sep 17 00:00:00 2001 From: Uwe Zeisberger Date: Fri, 16 Jun 2006 08:47:57 +0200 Subject: kbuild: append git revision for all untagged commits adds revision suffix for untagged commits that are reachable from a tag I'm bisecting and don't get the -g...... suffix. The reason is, that git name-rev --tags HEAD returns e.g. HEAD tags/v2.6.17-rc1^0~1067 which is currently good enough for setlocalversion to skip the suffix. This introduces a dependecy to grep -E, which should be fine. Signed-off-by: Uwe Zeisberger Acked-By: Ryan Anderson Signed-off-by: Sam Ravnborg --- scripts/setlocalversion | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/setlocalversion b/scripts/setlocalversion index 9a23825218f..b7bc0f5b64f 100644 --- a/scripts/setlocalversion +++ b/scripts/setlocalversion @@ -11,7 +11,7 @@ cd "${1:-.}" || usage # Check for git and a git repo. if head=`git rev-parse --verify HEAD 2>/dev/null`; then # Do we have an untagged version? - if [ "`git name-rev --tags HEAD`" = "HEAD undefined" ]; then + if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then printf '%s%s' -g `echo "$head" | cut -c1-8` fi -- cgit v1.2.3 From 216b2f1f718d653795024a085636d063693dd9a9 Mon Sep 17 00:00:00 2001 From: Uwe Zeisberger Date: Fri, 16 Jun 2006 08:48:48 +0200 Subject: kbuild: append -dirty for updated but uncommited changes Compare the working copy with the last commit, instead of the index. Signed-off-by: Uwe Zeisberger Acked-by: Ryan Anderson Signed-off-by: Sam Ravnborg --- scripts/setlocalversion | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/setlocalversion b/scripts/setlocalversion index b7bc0f5b64f..82e4993f0a7 100644 --- a/scripts/setlocalversion +++ b/scripts/setlocalversion @@ -16,7 +16,7 @@ if head=`git rev-parse --verify HEAD 2>/dev/null`; then fi # Are there uncommitted changes? - if git diff-files | read dummy; then + if git diff-index HEAD | read dummy; then printf '%s' -dirty fi fi -- cgit v1.2.3 From 0d420f9d6111b3a2fb7d5dd0180456eed469055d Mon Sep 17 00:00:00 2001 From: Savin Zlobec Date: Wed, 21 Jun 2006 11:51:20 +0200 Subject: [MTD] NAND: Missing fixups The oob fixups broke a return value and missed one patch from the Mailing List. Signed-off-by: Savin Zlobec Signed-off-by: Thomas Gleixner --- drivers/mtd/nand/nand_base.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 27083ed0a01..8df184f6d8d 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1176,7 +1176,7 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, status = chip->waitfunc(mtd, chip); - return status; + return status & NAND_STATUS_FAIL ? -EIO : 0; } /** @@ -1271,10 +1271,6 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd); buf = nand_transfer_oob(chip, buf, ops); - readlen -= ops->ooblen; - if (!readlen) - break; - if (!(chip->options & NAND_NO_READRDY)) { /* * Apply delay or wait for ready/busy pin. Do this @@ -1288,6 +1284,10 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, nand_wait_ready(mtd); } + readlen -= ops->ooblen; + if (!readlen) + break; + /* Increment page address */ realpage++; -- cgit v1.2.3 From 99974c62b6acd4093b6f485132067089c39f967c Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Wed, 21 Jun 2006 15:43:05 +0100 Subject: [MTD] NAND: S3C2410 convert prinks to dev_*()s Convert the use of printk() to the correct dev_info/dev_err functions Signed-off-by: Ben Dooks Signed-off-by: Thomas Gleixner --- drivers/mtd/nand/s3c2410.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 2c262fe03d8..5219bd212cf 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -63,8 +63,6 @@ #include #include -#define PFX "s3c2410-nand: " - #ifdef CONFIG_MTD_NAND_S3C2410_HWECC static int hardware_ecc = 1; #else @@ -195,11 +193,11 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, struct platform_d } if (tacls < 0 || twrph0 < 0 || twrph1 < 0) { - printk(KERN_ERR PFX "cannot get timings suitable for board\n"); + dev_err(info->device, "cannot get suitable timings\n"); return -EINVAL; } - printk(KERN_INFO PFX "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n", + dev_info(info->device, "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n", tacls, to_ns(tacls, clkrate), twrph0, to_ns(twrph0, clkrate), twrph1, to_ns(twrph1, clkrate)); if (!info->is_s3c2440) { @@ -218,7 +216,7 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, struct platform_d info->regs + S3C2440_NFCONT); } - pr_debug(PFX "NF_CONF is 0x%lx\n", cfg); + dev_dbg(info->device, "NF_CONF is 0x%lx\n", cfg); writel(cfg, info->regs + S3C2410_NFCONF); return 0; @@ -250,7 +248,7 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) cur |= bit; } else { if (nmtd->set != NULL && chip > nmtd->set->nr_chips) { - printk(KERN_ERR PFX "chip %d out of range\n", chip); + dev_err(info->device, "invalid chip %d\n", chip); return; } -- cgit v1.2.3 From 1794c13002918c2216e2e11913eb299d071a5731 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 22 Jun 2006 13:06:43 +0200 Subject: [MTD] NAND: ndfc fix address offset thinko The rework of the command handling in the nand driver led to wrong address setting in the command control function. Use the correct address again. Signed-off-by: Thomas Gleixner --- drivers/mtd/nand/ndfc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index fe8d38514ba..e5bd88f2d56 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -61,15 +61,15 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip) static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct ndfc_controller *ndfc = &ndfc_ctrl; if (cmd == NAND_CMD_NONE) return; if (ctrl & NAND_CLE) - writel(cmd & 0xFF, chip->IO_ADDR_W + NDFC_CMD); + writel(cmd & 0xFF, ndfc->ndfcbase + NDFC_CMD); else - writel(cmd & 0xFF, chip->IO_ADDR_W + NDFC_ALE); + writel(cmd & 0xFF, ndfc->ndfcbase + NDFC_ALE); } static int ndfc_ready(struct mtd_info *mtd) -- cgit v1.2.3 From 17ffc7ba6d7ea68b8d5f55a5ca1b87163e69720d Mon Sep 17 00:00:00 2001 From: "Artem B. Bityutskiy" Date: Thu, 22 Jun 2006 18:15:48 +0400 Subject: [MTD] Initialize 'writesize' Signed-off-by: Artem B. Bityutskiy --- drivers/mtd/chips/cfi_cmdset_0001.c | 1 + drivers/mtd/chips/jedec.c | 1 + drivers/mtd/chips/map_absent.c | 3 ++- drivers/mtd/chips/map_ram.c | 1 + drivers/mtd/chips/map_rom.c | 1 + drivers/mtd/devices/block2mtd.c | 1 + drivers/mtd/devices/ms02-nv.c | 1 + drivers/mtd/devices/mtd_dataflash.c | 1 + drivers/mtd/devices/phram.c | 1 + drivers/mtd/devices/pmc551.c | 3 ++- drivers/mtd/devices/slram.c | 1 + 11 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 0d435814aaa..39edb8250fb 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -357,6 +357,7 @@ struct mtd_info *cfi_cmdset_0001(struct map_info *map, int primary) mtd->resume = cfi_intelext_resume; mtd->flags = MTD_CAP_NORFLASH; mtd->name = map->name; + mtd->writesize = 1; mtd->reboot_notifier.notifier_call = cfi_intelext_reboot; diff --git a/drivers/mtd/chips/jedec.c b/drivers/mtd/chips/jedec.c index c40b48dabed..2c3f019197c 100644 --- a/drivers/mtd/chips/jedec.c +++ b/drivers/mtd/chips/jedec.c @@ -256,6 +256,7 @@ static struct mtd_info *jedec_probe(struct map_info *map) MTD->name = map->name; MTD->type = MTD_NORFLASH; MTD->flags = MTD_CAP_NORFLASH; + MTD->writesize = 1; MTD->erasesize = SectorSize*(map->buswidth); // printk("MTD->erasesize is %x\n",(unsigned int)MTD->erasesize); MTD->size = priv->size; diff --git a/drivers/mtd/chips/map_absent.c b/drivers/mtd/chips/map_absent.c index a611de9b151..ac01a949b68 100644 --- a/drivers/mtd/chips/map_absent.c +++ b/drivers/mtd/chips/map_absent.c @@ -64,7 +64,8 @@ static struct mtd_info *map_absent_probe(struct map_info *map) mtd->write = map_absent_write; mtd->sync = map_absent_sync; mtd->flags = 0; - mtd->erasesize = PAGE_SIZE; + mtd->erasesize = PAGE_SIZE; + mtd->writesize = 1; __module_get(THIS_MODULE); return mtd; diff --git a/drivers/mtd/chips/map_ram.c b/drivers/mtd/chips/map_ram.c index 763925747db..3a66680abfd 100644 --- a/drivers/mtd/chips/map_ram.c +++ b/drivers/mtd/chips/map_ram.c @@ -71,6 +71,7 @@ static struct mtd_info *map_ram_probe(struct map_info *map) mtd->write = mapram_write; mtd->sync = mapram_nop; mtd->flags = MTD_CAP_RAM; + mtd->writesize = 1; mtd->erasesize = PAGE_SIZE; while(mtd->size & (mtd->erasesize - 1)) diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c index bc6ee9ef8a3..1b328b1378f 100644 --- a/drivers/mtd/chips/map_rom.c +++ b/drivers/mtd/chips/map_rom.c @@ -47,6 +47,7 @@ static struct mtd_info *map_rom_probe(struct map_info *map) mtd->sync = maprom_nop; mtd->flags = MTD_CAP_ROM; mtd->erasesize = map->size; + mtd->writesize = 1; __module_get(THIS_MODULE); return mtd; diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 0d98c223c5f..be3f1c136d0 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -324,6 +324,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; dev->mtd.erasesize = erase_size; + dev->mtd.writesize = 1; dev->mtd.type = MTD_RAM; dev->mtd.flags = MTD_CAP_RAM; dev->mtd.erase = block2mtd_erase; diff --git a/drivers/mtd/devices/ms02-nv.c b/drivers/mtd/devices/ms02-nv.c index 4ab7670770e..08dfb899b27 100644 --- a/drivers/mtd/devices/ms02-nv.c +++ b/drivers/mtd/devices/ms02-nv.c @@ -225,6 +225,7 @@ static int __init ms02nv_init_one(ulong addr) mtd->owner = THIS_MODULE; mtd->read = ms02nv_read; mtd->write = ms02nv_write; + mtd->writesize = 1; ret = -EIO; if (add_mtd_device(mtd)) { diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index a19480d0788..04271d02b6b 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -478,6 +478,7 @@ add_dataflash(struct spi_device *spi, char *name, device->name = (pdata && pdata->name) ? pdata->name : priv->name; device->size = nr_pages * pagesize; device->erasesize = pagesize; + device->writesize = pagesize; device->owner = THIS_MODULE; device->type = MTD_DATAFLASH; device->flags = MTD_CAP_NORFLASH; diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index e09e416667d..6c7337f9ebb 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -151,6 +151,7 @@ static int register_device(char *name, unsigned long start, unsigned long len) new->mtd.owner = THIS_MODULE; new->mtd.type = MTD_RAM; new->mtd.erasesize = PAGE_SIZE; + new->mtd.writesize = 1; ret = -EAGAIN; if (add_mtd_device(&new->mtd)) { diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 666cce1bf60..f620d74f100 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -778,7 +778,8 @@ static int __init init_pmc551(void) mtd->type = MTD_RAM; mtd->name = "PMC551 RAM board"; mtd->erasesize = 0x10000; - mtd->owner = THIS_MODULE; + mtd->writesize = 1; + mtd->owner = THIS_MODULE; if (add_mtd_device(mtd)) { printk(KERN_NOTICE "pmc551: Failed to register new device\n"); diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index b3f665e3c38..542a0c00900 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -209,6 +209,7 @@ static int register_device(char *name, unsigned long start, unsigned long length (*curmtd)->mtdinfo->owner = THIS_MODULE; (*curmtd)->mtdinfo->type = MTD_RAM; (*curmtd)->mtdinfo->erasesize = SLRAM_BLK_SZ; + (*curmtd)->mtdinfo->writesize = 1; if (add_mtd_device((*curmtd)->mtdinfo)) { E("slram: Failed to register new device\n"); -- cgit v1.2.3 From 189acaaef81b1d71aedd0d28810de24160c2e781 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 23 Jun 2006 02:33:48 +0000 Subject: [CIFS] Enable sec flags on mount for cifs (part one) Signed-off-by: Steve French --- fs/cifs/README | 2 + fs/cifs/cifsproto.h | 2 +- fs/cifs/connect.c | 338 ++++------------------------------------------------ fs/cifs/sess.c | 7 +- 4 files changed, 28 insertions(+), 321 deletions(-) diff --git a/fs/cifs/README b/fs/cifs/README index a68f8e3db2d..46c2cfa5acf 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -453,6 +453,8 @@ sec Security mode. Allowed values are: server requires signing also can be the default) ntlmv2 Use NTLMv2 password hashing ntlmv2i Use NTLMv2 password hashing with packet signing + lanman (if configured in kernel config) use older + lanman hash The mount.cifs mount helper also accepts a few mount options before -o including: diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 7ffd5b0d63c..7ed06bfa192 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -68,10 +68,10 @@ extern void header_assemble(struct smb_hdr *, char /* command */ , extern int small_smb_init_no_tc(const int smb_cmd, const int wct, struct cifsSesInfo *ses, void ** request_buf); +#endif extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, const int stage, const struct nls_table *nls_cp); -#endif extern __u16 GetNextMid(struct TCP_Server_Info *server); extern struct oplock_q_entry * AllocOplockQEntry(struct inode *, u16, struct cifsTconInfo *); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index faaf9eb15b9..01608bb4d67 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -68,6 +68,7 @@ struct smb_vol { gid_t linux_gid; mode_t file_mode; mode_t dir_mode; + unsigned secFlg; unsigned rw:1; unsigned retry:1; unsigned intr:1; @@ -81,12 +82,7 @@ struct smb_vol { unsigned remap:1; /* set to remap seven reserved chars in filenames */ unsigned posix_paths:1; /* unset to not ask for posix pathnames. */ unsigned sfu_emul:1; - unsigned krb5:1; - unsigned ntlm:1; - unsigned ntlmv2:1; unsigned nullauth:1; /* attempt to authenticate with null user */ - unsigned sign:1; - unsigned seal:1; /* encrypt */ unsigned nocase; /* request case insensitive filenames */ unsigned nobrl; /* disable sending byte range locks to srv */ unsigned int rsize; @@ -789,7 +785,6 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) /* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */ vol->rw = TRUE; - vol->ntlm = TRUE; /* default is always to request posix paths. */ vol->posix_paths = 1; @@ -920,30 +915,35 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) cERROR(1,("no security value specified")); continue; } else if (strnicmp(value, "krb5i", 5) == 0) { - vol->sign = 1; - vol->krb5 = 1; + vol->secFlg = CIFSSEC_MAY_KRB5 | + CIFSSEC_MUST_SIGN; } else if (strnicmp(value, "krb5p", 5) == 0) { - /* vol->seal = 1; - vol->krb5 = 1; */ + /* vol->secFlg = CIFSSEC_MUST_SEAL | + CIFSSEC_MAY_KRB5; */ cERROR(1,("Krb5 cifs privacy not supported")); return 1; } else if (strnicmp(value, "krb5", 4) == 0) { - vol->krb5 = 1; + vol->secFlg = CIFSSEC_MAY_KRB5; } else if (strnicmp(value, "ntlmv2i", 7) == 0) { - vol->ntlmv2 = 1; - vol->sign = 1; + vol->secFlg = CIFSSEC_MAY_NTLMV2 | + CIFSSEC_MUST_SIGN; } else if (strnicmp(value, "ntlmv2", 6) == 0) { - vol->ntlmv2 = 1; + vol->secFlg = CIFSSEC_MAY_NTLMV2; } else if (strnicmp(value, "ntlmi", 5) == 0) { - vol->ntlm = 1; - vol->sign = 1; + vol->secFlg = CIFSSEC_MAY_NTLM | + CIFSSEC_MUST_SIGN; } else if (strnicmp(value, "ntlm", 4) == 0) { /* ntlm is default so can be turned off too */ - vol->ntlm = 1; + vol->secFlg = CIFSSEC_MAY_NTLM; } else if (strnicmp(value, "nontlm", 6) == 0) { - vol->ntlm = 0; + /* BB is there a better way to do this? */ + vol->secFlg = CIFSSEC_MAY_NTLMV2; +#ifdef CONFIG_CIFS_WEAK_PW_HASH + } else if (strnicmp(value, "lanman", 6) == 0) { + vol->secFlg = CIFSSEC_MAY_LANMAN; +#endif } else if (strnicmp(value, "none", 4) == 0) { - vol->nullauth = 1; + vol->nullauth = 1; } else { cERROR(1,("bad security option: %s", value)); return 1; @@ -1777,6 +1777,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } pSesInfo->linux_uid = volume_info.linux_uid; down(&pSesInfo->sesSem); + /* BB FIXME need to pass vol->secFlgs BB */ rc = cifs_setup_session(xid,pSesInfo, cifs_sb->local_nls); up(&pSesInfo->sesSem); if(!rc) @@ -2283,292 +2284,6 @@ sesssetup_nomem: /* do not return an error on nomem for the info strings, return rc; } -static int -CIFSSpnegoSessSetup(unsigned int xid, struct cifsSesInfo *ses, - char *SecurityBlob,int SecurityBlobLength, - const struct nls_table *nls_codepage) -{ - struct smb_hdr *smb_buffer; - struct smb_hdr *smb_buffer_response; - SESSION_SETUP_ANDX *pSMB; - SESSION_SETUP_ANDX *pSMBr; - char *bcc_ptr; - char *user; - char *domain; - int rc = 0; - int remaining_words = 0; - int bytes_returned = 0; - int len; - __u32 capabilities; - __u16 count; - - cFYI(1, ("In spnego sesssetup ")); - if(ses == NULL) - return -EINVAL; - user = ses->userName; - domain = ses->domainName; - - smb_buffer = cifs_buf_get(); - if (smb_buffer == NULL) { - return -ENOMEM; - } - smb_buffer_response = smb_buffer; - pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer; - - /* send SMBsessionSetup here */ - header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, - NULL /* no tCon exists yet */ , 12 /* wct */ ); - - smb_buffer->Mid = GetNextMid(ses->server); - pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; - pSMB->req.AndXCommand = 0xFF; - if(ses->server->maxBuf > 64*1024) - ses->server->maxBuf = (64*1023); - pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); - pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); - - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) - smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; - - capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | - CAP_EXTENDED_SECURITY; - if (ses->capabilities & CAP_UNICODE) { - smb_buffer->Flags2 |= SMBFLG2_UNICODE; - capabilities |= CAP_UNICODE; - } - if (ses->capabilities & CAP_STATUS32) { - smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; - capabilities |= CAP_STATUS32; - } - if (ses->capabilities & CAP_DFS) { - smb_buffer->Flags2 |= SMBFLG2_DFS; - capabilities |= CAP_DFS; - } - pSMB->req.Capabilities = cpu_to_le32(capabilities); - - pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength); - bcc_ptr = pByteArea(smb_buffer); - memcpy(bcc_ptr, SecurityBlob, SecurityBlobLength); - bcc_ptr += SecurityBlobLength; - - if (ses->capabilities & CAP_UNICODE) { - if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode strings */ - *bcc_ptr = 0; - bcc_ptr++; - } - bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, nls_codepage); - bcc_ptr += 2 * bytes_returned; /* convert num of 16 bit words to bytes */ - bcc_ptr += 2; /* trailing null */ - if (domain == NULL) - bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, - "CIFS_LINUX_DOM", 32, nls_codepage); - else - bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, domain, 64, - nls_codepage); - bcc_ptr += 2 * bytes_returned; - bcc_ptr += 2; - bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", - 32, nls_codepage); - bcc_ptr += 2 * bytes_returned; - bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32, - nls_codepage); - bcc_ptr += 2 * bytes_returned; - bcc_ptr += 2; - bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, - 64, nls_codepage); - bcc_ptr += 2 * bytes_returned; - bcc_ptr += 2; - } else { - strncpy(bcc_ptr, user, 200); - bcc_ptr += strnlen(user, 200); - *bcc_ptr = 0; - bcc_ptr++; - if (domain == NULL) { - strcpy(bcc_ptr, "CIFS_LINUX_DOM"); - bcc_ptr += strlen("CIFS_LINUX_DOM") + 1; - } else { - strncpy(bcc_ptr, domain, 64); - bcc_ptr += strnlen(domain, 64); - *bcc_ptr = 0; - bcc_ptr++; - } - strcpy(bcc_ptr, "Linux version "); - bcc_ptr += strlen("Linux version "); - strcpy(bcc_ptr, system_utsname.release); - bcc_ptr += strlen(system_utsname.release) + 1; - strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); - bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; - } - count = (long) bcc_ptr - (long) pByteArea(smb_buffer); - smb_buffer->smb_buf_length += count; - pSMB->req.ByteCount = cpu_to_le16(count); - - rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, - &bytes_returned, 1); - if (rc) { -/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */ - } else if ((smb_buffer_response->WordCount == 3) - || (smb_buffer_response->WordCount == 4)) { - __u16 action = le16_to_cpu(pSMBr->resp.Action); - __u16 blob_len = - le16_to_cpu(pSMBr->resp.SecurityBlobLength); - if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); /* BB do we want to set anything in SesInfo struct ? */ - if (ses) { - ses->Suid = smb_buffer_response->Uid; /* UID left in wire format (le) */ - cFYI(1, ("UID = %d ", ses->Suid)); - bcc_ptr = pByteArea(smb_buffer_response); /* response can have either 3 or 4 word count - Samba sends 3 */ - - /* BB Fix below to make endian neutral !! */ - - if ((pSMBr->resp.hdr.WordCount == 3) - || ((pSMBr->resp.hdr.WordCount == 4) - && (blob_len < - pSMBr->resp.ByteCount))) { - if (pSMBr->resp.hdr.WordCount == 4) { - bcc_ptr += - blob_len; - cFYI(1, - ("Security Blob Length %d ", - blob_len)); - } - - if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { - if ((long) (bcc_ptr) % 2) { - remaining_words = - (BCC(smb_buffer_response) - - 1) / 2; - bcc_ptr++; /* Unicode strings must be word aligned */ - } else { - remaining_words = - BCC - (smb_buffer_response) / 2; - } - len = - UniStrnlen((wchar_t *) bcc_ptr, - remaining_words - 1); -/* We look for obvious messed up bcc or strings in response so we do not go off - the end since (at least) WIN2K and Windows XP have a major bug in not null - terminating last Unicode string in response */ - if(ses->serverOS) - kfree(ses->serverOS); - ses->serverOS = - kzalloc(2 * (len + 1), GFP_KERNEL); - cifs_strfromUCS_le(ses->serverOS, - (__le16 *) - bcc_ptr, len, - nls_codepage); - bcc_ptr += 2 * (len + 1); - remaining_words -= len + 1; - ses->serverOS[2 * len] = 0; - ses->serverOS[1 + (2 * len)] = 0; - if (remaining_words > 0) { - len = UniStrnlen((wchar_t *)bcc_ptr, - remaining_words - - 1); - if(ses->serverNOS) - kfree(ses->serverNOS); - ses->serverNOS = - kzalloc(2 * (len + 1), - GFP_KERNEL); - cifs_strfromUCS_le(ses->serverNOS, - (__le16 *)bcc_ptr, - len, - nls_codepage); - bcc_ptr += 2 * (len + 1); - ses->serverNOS[2 * len] = 0; - ses->serverNOS[1 + (2 * len)] = 0; - remaining_words -= len + 1; - if (remaining_words > 0) { - len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); - /* last string not null terminated (e.g.Windows XP/2000) */ - if(ses->serverDomain) - kfree(ses->serverDomain); - ses->serverDomain = kzalloc(2*(len+1),GFP_KERNEL); - cifs_strfromUCS_le(ses->serverDomain, - (__le16 *)bcc_ptr, - len, nls_codepage); - bcc_ptr += 2*(len+1); - ses->serverDomain[2*len] = 0; - ses->serverDomain[1+(2*len)] = 0; - } /* else no more room so create dummy domain string */ - else { - if(ses->serverDomain) - kfree(ses->serverDomain); - ses->serverDomain = - kzalloc(2,GFP_KERNEL); - } - } else {/* no room use dummy domain&NOS */ - if(ses->serverDomain) - kfree(ses->serverDomain); - ses->serverDomain = kzalloc(2, GFP_KERNEL); - if(ses->serverNOS) - kfree(ses->serverNOS); - ses->serverNOS = kzalloc(2, GFP_KERNEL); - } - } else { /* ASCII */ - - len = strnlen(bcc_ptr, 1024); - if (((long) bcc_ptr + len) - (long) - pByteArea(smb_buffer_response) - <= BCC(smb_buffer_response)) { - if(ses->serverOS) - kfree(ses->serverOS); - ses->serverOS = kzalloc(len + 1, GFP_KERNEL); - strncpy(ses->serverOS, bcc_ptr, len); - - bcc_ptr += len; - bcc_ptr[0] = 0; /* null terminate the string */ - bcc_ptr++; - - len = strnlen(bcc_ptr, 1024); - if(ses->serverNOS) - kfree(ses->serverNOS); - ses->serverNOS = kzalloc(len + 1,GFP_KERNEL); - strncpy(ses->serverNOS, bcc_ptr, len); - bcc_ptr += len; - bcc_ptr[0] = 0; - bcc_ptr++; - - len = strnlen(bcc_ptr, 1024); - if(ses->serverDomain) - kfree(ses->serverDomain); - ses->serverDomain = kzalloc(len + 1, GFP_KERNEL); - strncpy(ses->serverDomain, bcc_ptr, len); - bcc_ptr += len; - bcc_ptr[0] = 0; - bcc_ptr++; - } else - cFYI(1, - ("Variable field of length %d extends beyond end of smb ", - len)); - } - } else { - cERROR(1, - (" Security Blob Length extends beyond end of SMB")); - } - } else { - cERROR(1, ("No session structure passed in.")); - } - } else { - cERROR(1, - (" Invalid Word count %d: ", - smb_buffer_response->WordCount)); - rc = -EIO; - } - - if (smb_buffer) - cifs_buf_release(smb_buffer); - - return rc; -} - static int CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, struct cifsSesInfo *ses, int * pNTLMv2_flag, @@ -3550,20 +3265,13 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, pSesInfo->server->secMode, pSesInfo->server->capabilities, pSesInfo->server->timeZone)); -#ifdef CONFIG_CIFS_EXPERIMENTAL - if(experimEnabled > 1) + if(experimEnabled < 2) rc = CIFS_SessSetup(xid, pSesInfo, first_time, nls_info); - else -#endif - if (extended_security + else if (extended_security && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY) && (pSesInfo->server->secType == NTLMSSP)) { - cFYI(1, ("New style sesssetup")); - rc = CIFSSpnegoSessSetup(xid, pSesInfo, - NULL /* security blob */, - 0 /* blob length */, - nls_info); + rc = -EOPNOTSUPP; } else if (extended_security && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY) && (pSesInfo->server->secType == RawNTLMSSP)) { diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index c039b54206a..70e32a81c21 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -33,8 +33,6 @@ extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24); -#ifdef CONFIG_CIFS_EXPERIMENTAL - static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) { __u32 capabilities = 0; @@ -319,7 +317,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, __u32 capabilities; int count; int resp_buf_type = 0; - struct kvec iov[1]; + struct kvec iov[2]; /* BB split variable length info into 2nd iovec */ enum securityEnum type; __u16 action; int bytes_remaining; @@ -489,7 +487,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, } action = le16_to_cpu(pSMB->resp.Action); if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); /* BB mark SesInfo struct? */ + cFYI(1, ("Guest login")); /* BB mark SesInfo struct? */ ses->Suid = smb_buf->Uid; /* UID left in wire format (le) */ cFYI(1, ("UID = %d ", ses->Suid)); /* response can have either 3 or 4 word count - Samba sends 3 */ @@ -525,4 +523,3 @@ ssetup_exit: return rc; } -#endif /* CONFIG_CIFS_EXPERIMENTAL */ -- cgit v1.2.3 From e5c44fd88c146755da6941d047de4d97651404a9 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 24 Jun 2006 22:50:18 +0200 Subject: kbuild: fix make -rR breakage make failed to supply the filename when using make -rR and using $(*F) to get target filename without extension. This bug was not reproduceable in small scale but using: $(basename $(notdir $@)) fixes it with same functionality. Signed-off-by: Sam Ravnborg --- scripts/Kbuild.include | 5 +++++ scripts/Makefile.build | 2 +- scripts/Makefile.host | 6 ++++-- scripts/Makefile.lib | 6 +++--- scripts/Makefile.modpost | 2 +- 5 files changed, 14 insertions(+), 7 deletions(-) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index b0d067be739..ac5f275b028 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -12,6 +12,11 @@ space := $(empty) $(empty) # contain a comma depfile = $(subst $(comma),_,$(@D)/.$(@F).d) +### +# basetarget equals the filename of the target with no extension. +# So 'foo/bar.o' becomes 'bar' +basetarget = $(basename $(notdir $@)) + ### # Escape single quote for use in echo statements escsq = $(subst $(squote),'\$(squote)',$1) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 53e53a2e80a..e8e7d27cfc9 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -117,7 +117,7 @@ $(real-objs-m:.o=.lst): quiet_modtag := [M] $(obj-m) : quiet_modtag := [M] # Default for not multi-part modules -modname = $(*F) +modname = $(basetarget) $(multi-objs-m) : modname = $(modname-multi) $(multi-objs-m:.o=.i) : modname = $(modname-multi) diff --git a/scripts/Makefile.host b/scripts/Makefile.host index 2b066d12af2..18ecd4d5df7 100644 --- a/scripts/Makefile.host +++ b/scripts/Makefile.host @@ -80,8 +80,10 @@ obj-dirs += $(host-objdirs) ##### # Handle options to gcc. Support building with separate output directory -_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(HOSTCFLAGS_$(*F).o) -_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) $(HOSTCXXFLAGS_$(*F).o) +_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \ + $(HOSTCFLAGS_$(basetarget).o) +_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \ + $(HOSTCXXFLAGS_$(basetarget).o) ifeq ($(KBUILD_SRC),) __hostc_flags = $(_hostc_flags) diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 2cb4935e85d..fc498fee68e 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -82,12 +82,12 @@ obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) # than one module. In that case KBUILD_MODNAME will be set to foo_bar, # where foo and bar are the name of the modules. name-fix = $(subst $(comma),_,$(subst -,_,$1)) -basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(*F)))" +basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))" modname_flags = $(if $(filter 1,$(words $(modname))),\ -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))") -_c_flags = $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(*F).o) -_a_flags = $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o) +_c_flags = $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(basetarget).o) +_a_flags = $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) _cpp_flags = $(CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F)) # If building the kernel in a separate objtree expand all occurrences diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 576cce5e387..e83613e0e82 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -72,7 +72,7 @@ $(modules:.ko=.mod.c): __modpost ; # Step 5), compile all *.mod.c files # modname is set to make c_flags define KBUILD_MODNAME -modname = $(*F) +modname = $(basetarget) quiet_cmd_cc_o_c = CC $@ cmd_cc_o_c = $(CC) $(c_flags) $(CFLAGS_MODULE) \ -- cgit v1.2.3 From c5e3003381f4e39773a1758a9eb68dff9740a56c Mon Sep 17 00:00:00 2001 From: Ram Pai Date: Fri, 23 Jun 2006 16:44:38 -0700 Subject: kbuild: export-symbol usage report generator The following patch provides the ability to generate a report of (1) All the exported symbols and their in-kernel-module usage count (2) For each module, lists the modules and their exported symbols, on which it depends. the report can be generated by executing: perl scripts/export_report The tool warns if the modules are not build using MODVERSIONING. Signed-off-by: Ram Pai Signed-off-by: Sam Ravnborg --- scripts/export_report.pl | 169 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 169 insertions(+) create mode 100644 scripts/export_report.pl diff --git a/scripts/export_report.pl b/scripts/export_report.pl new file mode 100644 index 00000000000..9ed00d9bb0a --- /dev/null +++ b/scripts/export_report.pl @@ -0,0 +1,169 @@ +#!/usr/bin/perl -w +# +# (C) Copyright IBM Corporation 2006. +# Released under GPL v2. +# Author : Ram Pai (linuxram@us.ibm.com) +# +# Usage: export_report.pl -k Module.symvers [-o report_file ] -f *.mod.c +# + +use Getopt::Std; +use strict; + +sub numerically { + my $no1 = (split /\s+/, $a)[1]; + my $no2 = (split /\s+/, $b)[1]; + return $no1 <=> $no2; +} + +sub alphabetically { + my ($module1, $value1) = @{$a}; + my ($module2, $value2) = @{$b}; + return $value1 <=> $value2 || $module2 cmp $module1; +} + +sub print_depends_on { + my ($href) = @_; + print "\n"; + while (my ($mod, $list) = each %$href) { + print "\t$mod:\n"; + foreach my $sym (sort numerically @{$list}) { + my ($symbol, $no) = split /\s+/, $sym; + printf("\t\t%-25s\t%-25d\n", $symbol, $no); + } + print "\n"; + } + print "\n"; + print "~"x80 , "\n"; +} + +sub usage { + print "Usage: @_ -h -k Module.symvers [ -o outputfile ] \n", + "\t-f: treat all the non-option argument as .mod.c files. ", + "Recommend using this as the last option\n", + "\t-h: print detailed help\n", + "\t-k: the path to Module.symvers file. By default uses ", + "the file from the current directory\n", + "\t-o outputfile: output the report to outputfile\n"; + exit 0; +} + +sub collectcfiles { + my @file = `cat .tmp_versions/*.mod | grep '.*\.ko\$'`; + @file = grep {s/\.ko/.mod.c/} @file; + chomp @file; + return @file; +} + +my (%SYMBOL, %MODULE, %opt, @allcfiles); + +if (not getopts('hk:o:f',\%opt) or defined $opt{'h'}) { + usage($0); +} + +if (defined $opt{'f'}) { + @allcfiles = @ARGV; +} else { + @allcfiles = collectcfiles(); +} + +if (not defined $opt{'k'}) { + $opt{'k'} = "Module.symvers"; +} + +unless (open(MODULE_SYMVERS, $opt{'k'})) { + die "Sorry, cannot open $opt{'k'}: $!\n"; +} + +if (defined $opt{'o'}) { + unless (open(OUTPUT_HANDLE, ">$opt{'o'}")) { + die "Sorry, cannot open $opt{'o'} $!\n"; + } + select OUTPUT_HANDLE; +} +# +# collect all the symbols and their attributes from the +# Module.symvers file +# +while ( ) { + chomp; + my (undef, $symbol, $module, $gpl) = split; + $SYMBOL { $symbol } = [ $module , "0" , $symbol, $gpl]; +} +close(MODULE_SYMVERS); + +# +# collect the usage count of each symbol. +# +foreach my $thismod (@allcfiles) { + unless (open(MODULE_MODULE, $thismod)) { + print "Sorry, cannot open $thismod: $!\n"; + next; + } + my $state=0; + while ( ) { + chomp; + if ($state eq 0) { + $state = 1 if ($_ =~ /static const struct modversion_info/); + next; + } + if ($state eq 1) { + $state = 2 if ($_ =~ /__attribute__\(\(section\("__versions"\)\)\)/); + next; + } + if ($state eq 2) { + if ( $_ !~ /0x[0-9a-f]{7,8},/ ) { + next; + } + my $sym = (split /([,"])/,)[4]; + my ($module, $value, $symbol, $gpl) = @{$SYMBOL{$sym}}; + $SYMBOL{ $sym } = [ $module, $value+1, $symbol, $gpl]; + push(@{$MODULE{$thismod}} , $sym); + } + } + if ($state ne 2) { + print "WARNING:$thismod is not built with CONFIG_MODVERSION enabled\n"; + } + close(MODULE_MODULE); +} + +print "\tThis file reports the exported symbols usage patterns by in-tree\n", + "\t\t\t\tmodules\n"; +printf("%s\n\n\n","x"x80); +printf("\t\t\t\tINDEX\n\n\n"); +printf("SECTION 1: Usage counts of all exported symbols\n"); +printf("SECTION 2: List of modules and the exported symbols they use\n"); +printf("%s\n\n\n","x"x80); +printf("SECTION 1:\tThe exported symbols and their usage count\n\n"); +printf("%-25s\t%-25s\t%-5s\t%-25s\n", "Symbol", "Module", "Usage count", + "export type"); + +# +# print the list of unused exported symbols +# +foreach my $list (sort alphabetically values(%SYMBOL)) { + my ($module, $value, $symbol, $gpl) = @{$list}; + printf("%-25s\t%-25s\t%-10s\t", $symbol, $module, $value); + if (defined $gpl) { + printf("%-25s\n",$gpl); + } else { + printf("\n"); + } +} +printf("%s\n\n\n","x"x80); + +printf("SECTION 2:\n\tThis section reports export-symbol-usage of in-kernel +modules. Each module lists the modules, and the symbols from that module that +it uses. Each listed symbol reports the number of modules using it\n"); + +print "~"x80 , "\n"; +while (my ($thismod, $list) = each %MODULE) { + my %depends; + $thismod =~ s/\.mod\.c/.ko/; + print "\t\t\t$thismod\n"; + foreach my $symbol (@{$list}) { + my ($module, $value, undef, $gpl) = @{$SYMBOL{$symbol}}; + push (@{$depends{"$module"}}, "$symbol $value"); + } + print_depends_on(\%depends); +} -- cgit v1.2.3 From 468d949401d729b28eed6ea5be25695c5731d3f1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 23 Jun 2006 23:22:43 +0100 Subject: kbuild: kill some false positives from modpost Signed-off-by: Al Viro Signed-off-by: Sam Ravnborg --- scripts/mod/modpost.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index d03c9fff5b2..7e226896579 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -891,6 +891,8 @@ static int init_section_ref_ok(const char *name) ".pci_fixup_final", ".pdr", "__param", + "__ex_table", + ".fixup", ".smp_locks", ".plt", /* seen on ARCH=um build on x86_64. Harmless */ NULL @@ -918,6 +920,8 @@ static int init_section_ref_ok(const char *name) for (s = namelist3; *s; s++) if (strstr(name, *s) != NULL) return 1; + if (strrcmp(name, ".init") == 0) + return 1; return 0; } @@ -964,6 +968,8 @@ static int exit_section_ref_ok(const char *name) ".exitcall.exit", ".eh_frame", ".stab", + "__ex_table", + ".fixup", ".smp_locks", ".plt", /* seen on ARCH=um build on x86_64. Harmless */ NULL -- cgit v1.2.3 From ac031f26e89cc04fc7504f31ae137857eb83a051 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 21 Jun 2006 20:53:09 -0400 Subject: kbuild: add option for stripping modules while installing them Add option for stripping modules while installing them. This function adds support for stripping modules while they are being installed. CONFIG_DEBUG_KERNEL (which will probably become more popular as developers use kdump) causes the size of the installed modules to grow by a factor of 9 or so. Some kernel package systems solve this problem by stripping the debug information from /lib/modules after running "make modules_install", but that may not work for people who are installing directly into /lib/modules --- root partitions that were sized to handle 16 megs worth of modules may not be quite so happy with 145 megs of modules, so the "make modules_install" never succeeds. This patch allows such users to request modules_install to strip the modules as they are installed. Signed-off-by: "Theodore Ts'o" Signed-off-by: Sam Ravnborg --- Documentation/kbuild/makefiles.txt | 8 ++++++++ Makefile | 17 +++++++++++++++++ scripts/Makefile.modinst | 2 +- 3 files changed, 26 insertions(+), 1 deletion(-) diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index a9c00facdf4..14ef3868a32 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -1123,6 +1123,14 @@ The top Makefile exports the following variables: $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE). The user may override this value on the command line if desired. + INSTALL_MOD_STRIP + + If this variable is specified, will cause modules to be stripped + after they are installed. If INSTALL_MOD_STRIP is '1', then the + default option --strip-debug will be used. Otherwise, + INSTALL_MOD_STRIP will used as the option(s) to the strip command. + + === 8 Makefile language The kernel Makefiles are designed to run with GNU Make. The Makefiles diff --git a/Makefile b/Makefile index 1b2fd97f503..d810d6cb4d0 100644 --- a/Makefile +++ b/Makefile @@ -512,6 +512,23 @@ export INSTALL_PATH ?= /boot MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) export MODLIB +# +# INSTALL_MOD_STRIP, if defined, will cause modules to be +# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then +# the default option --strip-debug will be used. Otherwise, +# INSTALL_MOD_STRIP will used as the options to the strip command. + +ifdef INSTALL_MOD_STRIP +ifeq ($(INSTALL_MOD_STRIP),1) +mod_strip_cmd = $STRIP) --strip-debug +else +mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) +endif # INSTALL_MOD_STRIP=1 +else +mod_strip_cmd = true +endif # INSTALL_MOD_STRIP +export mod_strip_cmd + ifeq ($(KBUILD_EXTMOD),) core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst index 2686dd5dce8..f0ff248f5e6 100644 --- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -17,7 +17,7 @@ __modinst: $(modules) @: quiet_cmd_modules_install = INSTALL $@ - cmd_modules_install = mkdir -p $(2); cp $@ $(2) + cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@) # Modules built outside the kernel source tree go into extra by default INSTALL_MOD_DIR ?= extra -- cgit v1.2.3 From 3041e47e8b08d51188b2cbdbd9c1e6f43314c8f1 Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Sun, 18 Jun 2006 21:09:09 -0700 Subject: kbuild: fix silentoldconfig recursion kconfig-fix-config-dependencies causes this: make CC=cc KBUILD_VERBOSE=1 -C /usr/src/25 SUBDIRS=/home/akpm/NVIDIA-Linux-x86_64-1.0-8762-pkg2/usr/src/nv modules make -f /usr/src/devel/Makefile silentoldconfig make -f /usr/src/devel/Makefile silentoldconfig make -f /usr/src/devel/Makefile silentoldconfig The basic problem is if we compile external modules, config-targets isn't set which can cause recursive calls to silentoldconfig to update the kernel configuration. Bail out and ask the user to update manually. Signed-off-by: Sam Ravnborg --- Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Makefile b/Makefile index d810d6cb4d0..1888fabe403 100644 --- a/Makefile +++ b/Makefile @@ -446,7 +446,11 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; # if auto.conf.cmd is missing then we are probarly in a cleaned tree so # we execute the config step to be sure to catch updated Kconfig files include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd +ifeq ($(KBUILD_EXTMOD),) $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig +else + $(error kernel configuration not valid - run 'make prepare' in $(srctree) to update it) +endif else # Dummy target needed, because used as prerequisite -- cgit v1.2.3 From 15fde6751886fd972a64ed65ba49db309919c504 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Tue, 9 May 2006 20:37:30 +0200 Subject: kbuild: support for %.symtypes files Here is a patch that adds a new -T option to genksyms for generating dumps of the type definition that makes up the symbol version hashes. This allows to trace modversion changes back to what caused them. The dump format is the name of the type defined, followed by its definition (which is almost C): s#list_head struct list_head { s#list_head * next , * prev ; } The s#, u#, e#, and t# prefixes stand for struct, union, enum, and typedef. The exported symbols do not define types, and thus do not have an x# prefix: nfs4_acl_get_whotype int nfs4_acl_get_whotype ( char * , t#u32 ) The symbol type defintion of a single file can be generated with: make fs/jbd/journal.symtypes If KBUILD_SYMTYPES is defined, all the *.symtypes of all object files that export symbols are generated. The single *.symtypes files can be combined into a single file after a kernel build with a script like the following: for f in $(find -name '*.symtypes' | sort); do f=${f#./} echo "/* ${f%.symtypes}.o */" cat $f echo done \ | sed -e '\:UNKNOWN:d' \ -e 's:[,;] }:}:g' \ -e 's:\([[({]\) :\1:g' \ -e 's: \([])},;]\):\1:g' \ -e 's: $::' \ $f \ | awk ' /^.#/ { if (defined[$1] == $0) { print $1 next } defined[$1] = $0 } { print } ' When the kernel ABI changes, diffing individual *.symtype files, or the combined files, against each other will show which symbol changes caused the ABI changes. This can save a tremendous amount of time. Dump the types that make up modversions Signed-off-by: Andreas Gruenbacher Signed-off-by: Sam Ravnborg --- Makefile | 5 ++- scripts/Makefile.build | 12 ++++++- scripts/genksyms/genksyms.c | 77 ++++++++++++++++++++++++++++++--------------- scripts/genksyms/genksyms.h | 1 + 4 files changed, 67 insertions(+), 28 deletions(-) diff --git a/Makefile b/Makefile index 1888fabe403..e8906694dcc 100644 --- a/Makefile +++ b/Makefile @@ -969,7 +969,8 @@ clean: archclean $(clean-dirs) $(call cmd,rmfiles) @find . $(RCS_FIND_IGNORE) \ \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ - -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ + -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ + -o -name '*.symtypes' \) \ -type f -print | xargs rm -f # mrproper - Delete all generated files, including .config @@ -1311,6 +1312,8 @@ endif $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.o: %.S prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.symtypes: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) # Modules / %/: prepare scripts FORCE diff --git a/scripts/Makefile.build b/scripts/Makefile.build index e8e7d27cfc9..3cb445cc743 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -140,6 +140,15 @@ cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $< %.i: %.c FORCE $(call if_changed_dep,cc_i_c) +quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@ +cmd_cc_symtypes_c = \ + $(CPP) -D__GENKSYMS__ $(c_flags) $< \ + | $(GENKSYMS) -T $@ >/dev/null; \ + test -s $@ || rm -f $@ + +%.symtypes : %.c FORCE + $(call if_changed_dep,cc_symtypes_c) + # C (.c) files # The C file is compiled and updated dependency information is generated. # (See cmd_cc_o_c + relevant part of rule_cc_o_c) @@ -166,7 +175,8 @@ cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $< cmd_modversions = \ if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \ $(CPP) -D__GENKSYMS__ $(c_flags) $< \ - | $(GENKSYMS) -a $(ARCH) \ + | $(GENKSYMS) $(if $(KBUILD_SYMTYPES), \ + -T $(@D)/$(@F:.o=.symtypes)) -a $(ARCH) \ > $(@D)/.tmp_$(@F:.o=.ver); \ \ $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \ diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c index 5b0344e20d6..b0381823e40 100644 --- a/scripts/genksyms/genksyms.c +++ b/scripts/genksyms/genksyms.c @@ -42,7 +42,7 @@ static FILE *debugfile; int cur_line = 1; char *cur_filename; -static int flag_debug, flag_dump_defs, flag_warnings; +static int flag_debug, flag_dump_defs, flag_dump_types, flag_warnings; static const char *arch = ""; static const char *mod_prefix = ""; @@ -50,6 +50,7 @@ static int errors; static int nsyms; static struct symbol *expansion_trail; +static struct symbol *visited_symbols; static const char *const symbol_type_name[] = { "normal", "typedef", "enum", "struct", "union" @@ -176,6 +177,7 @@ struct symbol *add_symbol(const char *name, enum symbol_type type, sym->type = type; sym->defn = defn; sym->expansion_trail = NULL; + sym->visited = NULL; sym->is_extern = is_extern; sym->hash_next = symtab[h]; @@ -236,26 +238,11 @@ static int equal_list(struct string_list *a, struct string_list *b) static void print_node(FILE * f, struct string_list *list) { - switch (list->tag) { - case SYM_STRUCT: - putc('s', f); - goto printit; - case SYM_UNION: - putc('u', f); - goto printit; - case SYM_ENUM: - putc('e', f); - goto printit; - case SYM_TYPEDEF: - putc('t', f); - goto printit; - - printit: + if (list->tag != SYM_NORMAL) { + putc(symbol_type_name[list->tag][0], f); putc('#', f); - case SYM_NORMAL: - fputs(list->string, f); - break; } + fputs(list->string, f); } static void print_list(FILE * f, struct string_list *list) @@ -287,9 +274,9 @@ static void print_list(FILE * f, struct string_list *list) } } -static unsigned long expand_and_crc_list(struct string_list *list, - unsigned long crc) +static unsigned long expand_and_crc_sym(struct symbol *sym, unsigned long crc) { + struct string_list *list = sym->defn; struct string_list **e, **b; struct string_list *tmp, **tmp2; int elem = 1; @@ -332,7 +319,7 @@ static unsigned long expand_and_crc_list(struct string_list *list, } else { subsym->expansion_trail = expansion_trail; expansion_trail = subsym; - crc = expand_and_crc_list(subsym->defn, crc); + crc = expand_and_crc_sym(subsym, crc); } break; @@ -382,12 +369,22 @@ static unsigned long expand_and_crc_list(struct string_list *list, } else { subsym->expansion_trail = expansion_trail; expansion_trail = subsym; - crc = expand_and_crc_list(subsym->defn, crc); + crc = expand_and_crc_sym(subsym, crc); } break; } } + { + static struct symbol **end = &visited_symbols; + + if (!sym->visited) { + *end = sym; + end = &sym->visited; + sym->visited = (struct symbol *)-1L; + } + } + return crc; } @@ -406,7 +403,7 @@ void export_symbol(const char *name) expansion_trail = (struct symbol *)-1L; - crc = expand_and_crc_list(sym->defn, 0xffffffff) ^ 0xffffffff; + crc = expand_and_crc_sym(sym, 0xffffffff) ^ 0xffffffff; sym = expansion_trail; while (sym != (struct symbol *)-1L) { @@ -464,6 +461,7 @@ static void genksyms_usage(void) int main(int argc, char **argv) { + FILE *dumpfile = NULL; int o; #ifdef __GNU_LIBRARY__ @@ -473,15 +471,16 @@ int main(int argc, char **argv) {"warnings", 0, 0, 'w'}, {"quiet", 0, 0, 'q'}, {"dump", 0, 0, 'D'}, + {"dump-types", 1, 0, 'T'}, {"version", 0, 0, 'V'}, {"help", 0, 0, 'h'}, {0, 0, 0, 0} }; - while ((o = getopt_long(argc, argv, "a:dwqVDk:p:", + while ((o = getopt_long(argc, argv, "a:dwqVDT:k:p:", &long_opts[0], NULL)) != EOF) #else /* __GNU_LIBRARY__ */ - while ((o = getopt(argc, argv, "a:dwqVDk:p:")) != EOF) + while ((o = getopt(argc, argv, "a:dwqVDT:k:p:")) != EOF) #endif /* __GNU_LIBRARY__ */ switch (o) { case 'a': @@ -502,6 +501,14 @@ int main(int argc, char **argv) case 'D': flag_dump_defs = 1; break; + case 'T': + flag_dump_types = 1; + dumpfile = fopen(optarg, "w"); + if (!dumpfile) { + perror(optarg); + return 1; + } + break; case 'h': genksyms_usage(); return 0; @@ -524,6 +531,24 @@ int main(int argc, char **argv) yyparse(); + if (flag_dump_types && visited_symbols) { + while (visited_symbols != (struct symbol *)-1L) { + struct symbol *sym = visited_symbols; + + if (sym->type != SYM_NORMAL) { + putc(symbol_type_name[sym->type][0], dumpfile); + putc('#', dumpfile); + } + fputs(sym->name, dumpfile); + putc(' ', dumpfile); + print_list(dumpfile, sym->defn); + putc('\n', dumpfile); + + visited_symbols = sym->visited; + sym->visited = NULL; + } + } + if (flag_debug) { fprintf(debugfile, "Hash table occupancy %d/%d = %g\n", nsyms, HASH_BUCKETS, diff --git a/scripts/genksyms/genksyms.h b/scripts/genksyms/genksyms.h index ab6f34f3873..2668287aa49 100644 --- a/scripts/genksyms/genksyms.h +++ b/scripts/genksyms/genksyms.h @@ -41,6 +41,7 @@ struct symbol { enum symbol_type type; struct string_list *defn; struct symbol *expansion_trail; + struct symbol *visited; int is_extern; }; -- cgit v1.2.3 From 6803dc0ea85ad21b2cb3ec88decff5e27d7a390b Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 24 Jun 2006 23:46:54 +0200 Subject: kbuild: replace abort() with exit(1) We have had no use of the coredump file for a long time. So just exit(1) and avoid coredumping. Signed-off-by: Sam Ravnborg --- scripts/genksyms/lex.c_shipped | 2 +- scripts/genksyms/lex.l | 2 +- scripts/mod/mk_elfconfig.c | 6 +++--- scripts/mod/modpost.c | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/scripts/genksyms/lex.c_shipped b/scripts/genksyms/lex.c_shipped index 1218053ee96..37ba98241b9 100644 --- a/scripts/genksyms/lex.c_shipped +++ b/scripts/genksyms/lex.c_shipped @@ -2023,7 +2023,7 @@ repeat: break; default: - abort(); + exit(1); } fini: diff --git a/scripts/genksyms/lex.l b/scripts/genksyms/lex.l index fe0dfeedf0f..5e544a06678 100644 --- a/scripts/genksyms/lex.l +++ b/scripts/genksyms/lex.l @@ -392,7 +392,7 @@ repeat: break; default: - abort(); + exit(1); } fini: diff --git a/scripts/mod/mk_elfconfig.c b/scripts/mod/mk_elfconfig.c index 3c92c83733f..725d61c0fb4 100644 --- a/scripts/mod/mk_elfconfig.c +++ b/scripts/mod/mk_elfconfig.c @@ -28,7 +28,7 @@ main(int argc, char **argv) printf("#define KERNEL_ELFCLASS ELFCLASS64\n"); break; default: - abort(); + exit(1); } switch (ei[EI_DATA]) { case ELFDATA2LSB: @@ -38,7 +38,7 @@ main(int argc, char **argv) printf("#define KERNEL_ELFDATA ELFDATA2MSB\n"); break; default: - abort(); + exit(1); } if (sizeof(unsigned long) == 4) { @@ -53,7 +53,7 @@ main(int argc, char **argv) else if (memcmp(endian_test.c, "\x02\x01", 2) == 0) printf("#define HOST_ELFDATA ELFDATA2LSB\n"); else - abort(); + exit(1); if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0)) printf("#define MODULE_SYMBOL_PREFIX \"_\"\n"); diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 7e226896579..0dd16177642 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -330,7 +330,7 @@ static void parse_elf(struct elf_info *info, const char *filename) hdr = grab_file(filename, &info->size); if (!hdr) { perror(filename); - abort(); + exit(1); } info->hdr = hdr; if (info->size < sizeof(*hdr)) -- cgit v1.2.3 From e838db685fcfd2e9a0548ffc5cb9447e6c3c11be Mon Sep 17 00:00:00 2001 From: Masatake YAMATO Date: Thu, 22 Jun 2006 12:21:20 +0900 Subject: kbuild: adding symbols in Kconfig and defconfig to TAGS I'm using TAGS generated from "make TAGS" to read the kernel source code. When I met a ifdef block #ifdef CONFIG_FOO ... #endif in the soruce code I would like to know the meaning CONFIG_FOO to decide whether I should read inside the ifdef block or not. meaning CONFIG_FOO is well documented in Kconfig. So it is nice if I can jump to CONFIG_FOO entry in Kconfig from "#ifdef CONFIG_FOO" with the tag jump. Here is the patch to add symbols in Kconfig and defconfig to TAGS in "make TAGS" operation. Signed-off-by: Masatake YAMATO Signed-off-by: Sam Ravnborg --- Makefile | 34 +++++++++++++++++++++++++--------- 1 file changed, 25 insertions(+), 9 deletions(-) diff --git a/Makefile b/Makefile index e8906694dcc..a21c3192e8c 100644 --- a/Makefile +++ b/Makefile @@ -1192,25 +1192,35 @@ endif ALLSOURCE_ARCHS := $(ARCH) -define all-sources - ( find $(__srctree) $(RCS_FIND_IGNORE) \ +define find-sources + ( find $(__srctree) $(RCS_FIND_IGNORE) \ \( -name include -o -name arch \) -prune -o \ - -name '*.[chS]' -print; \ + -name $1 -print; \ for ARCH in $(ALLSOURCE_ARCHS) ; do \ find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \ - -name '*.[chS]' -print; \ + -name $1 -print; \ done ; \ find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \ - -name '*.[chS]' -print; \ + -name $1 -print; \ find $(__srctree)include $(RCS_FIND_IGNORE) \ \( -name config -o -name 'asm-*' \) -prune \ - -o -name '*.[chS]' -print; \ + -o -name $1 -print; \ for ARCH in $(ALLINCLUDE_ARCHS) ; do \ find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \ - -name '*.[chS]' -print; \ + -name $1 -print; \ done ; \ find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \ - -name '*.[chS]' -print ) + -name $1 -print ) +endef + +define all-sources + $(call find-sources,'*.[chS]') +endef +define all-kconfigs + $(call find-sources,'Kconfig*') +endef +define all-defconfigs + $(call find-sources,'defconfig') endef quiet_cmd_cscope-file = FILELST cscope.files @@ -1230,7 +1240,13 @@ define cmd_TAGS echo "-I __initdata,__exitdata,__acquires,__releases \ -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ --extra=+f --c-kinds=+px"`; \ - $(all-sources) | xargs etags $$ETAGSF -a + $(all-sources) | xargs etags $$ETAGSF -a; \ + if test "x$$ETAGSF" = x; then \ + $(all-kconfigs) | xargs etags -a \ + --regex='/^config[ \t]+\([a-zA-Z0-9_]+\)/\1/'; \ + $(all-defconfigs) | xargs etags -a \ + --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \ + fi endef TAGS: FORCE -- cgit v1.2.3 From 070b98bfda3d27269519067c1c67eaef695f3e0c Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 25 Jun 2006 00:07:55 +0200 Subject: kbuild: trivial fixes in Makefile Signed-off-by: Sam Ravnborg --- Makefile | 82 ++++++++++++++++++++++++++++++++-------------------------------- 1 file changed, 41 insertions(+), 41 deletions(-) diff --git a/Makefile b/Makefile index a21c3192e8c..1c558a43f8e 100644 --- a/Makefile +++ b/Makefile @@ -71,7 +71,7 @@ endif # In both cases the working directory must be the root of the kernel src. # 1) O= # Use "make O=dir/to/store/output/files/" -# +# # 2) Set KBUILD_OUTPUT # Set the environment variable KBUILD_OUTPUT to point to the directory # where the output files shall be placed. @@ -185,13 +185,13 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ else echo sh; fi ; fi) -HOSTCC = gcc -HOSTCXX = g++ -HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -HOSTCXXFLAGS = -O2 +HOSTCC = gcc +HOSTCXX = g++ +HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer +HOSTCXXFLAGS = -O2 -# Decide whether to build built-in, modular, or both. -# Normally, just do built-in. +# Decide whether to build built-in, modular, or both. +# Normally, just do built-in. KBUILD_MODULES := KBUILD_BUILTIN := 1 @@ -199,7 +199,7 @@ KBUILD_BUILTIN := 1 # If we have only "make modules", don't compile built-in objects. # When we're building modules with modversions, we need to consider # the built-in objects during the descend as well, in order to -# make sure the checksums are uptodate before we record them. +# make sure the checksums are up to date before we record them. ifeq ($(MAKECMDGOALS),modules) KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) @@ -232,7 +232,7 @@ export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD # # If $(quiet) is empty, the whole command will be printed. # If it is set to "quiet_", only the short version will be printed. -# If it is set to "silent_", nothing wil be printed at all, since +# If it is set to "silent_", nothing will be printed at all, since # the variable $(silent_cmd_cc_o_c) doesn't exist. # # A simple variant is to prefix commands with $(Q) - that's useful @@ -268,7 +268,7 @@ MAKEFLAGS += --include-dir=$(srctree) include $(srctree)/scripts/Kbuild.include # Do not use make's built-in rules and variables -# This increases performance and avoid hard-to-debug behaviour +# This increases performance and avoid hard-to-debug behavour MAKEFLAGS += -rR # Make variables (CC, etc...) @@ -306,21 +306,21 @@ LINUXINCLUDE := -Iinclude \ CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) -CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ - -fno-strict-aliasing -fno-common -AFLAGS := -D__ASSEMBLY__ +CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ + -fno-strict-aliasing -fno-common +AFLAGS := -D__ASSEMBLY__ # Read KERNELRELEASE from include/config/kernel.release (if it exists) KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) -export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \ - ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \ - CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \ - HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS +export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION +export ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC +export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE +export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS -export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE +export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE # When compiling out-of-tree modules, put MODVERDIR in the module @@ -358,7 +358,7 @@ endif # catch them early, and hand them over to scripts/kconfig/Makefile # It is allowed to specify more targets when calling make, including # mixing *config targets and build targets. -# For example 'make oldconfig all'. +# For example 'make oldconfig all'. # Detect when mixed targets is specified, and make a second invocation # of make so .config is not included in this case either (for *config). @@ -417,7 +417,7 @@ else ifeq ($(KBUILD_EXTMOD),) # Additional helpers built in scripts/ # Carefully list dependencies so we do not try to build scripts twice -# in parrallel +# in parallel PHONY += scripts scripts: scripts_basic include/config/auto.conf $(Q)$(MAKE) $(build)=$(@) @@ -443,7 +443,7 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; # If .config is newer than include/config/auto.conf, someone tinkered # with it and forgot to run make oldconfig. -# if auto.conf.cmd is missing then we are probarly in a cleaned tree so +# if auto.conf.cmd is missing then we are probably in a cleaned tree so # we execute the config step to be sure to catch updated Kconfig files include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd ifeq ($(KBUILD_EXTMOD),) @@ -460,7 +460,7 @@ endif # The all: target is the default when no target is given on the # command line. # This allow a user to issue only 'make' to build a kernel including modules -# Defaults vmlinux but it is usually overriden in the arch makefile +# Defaults vmlinux but it is usually overridden in the arch makefile all: vmlinux ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE @@ -492,11 +492,11 @@ CHECKFLAGS += $(NOSTDINC_FLAGS) # warn about C99 declaration after statement CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) -# disable pointer signedness warnings in gcc 4.0 +# disable pointer signed / unsigned warnings in gcc 4.0 CFLAGS += $(call cc-option,-Wno-pointer-sign,) # Default kernel image to build when no specific target is given. -# KBUILD_IMAGE may be overruled on the commandline or +# KBUILD_IMAGE may be overruled on the command line or # set in the environment # Also any assignments in arch/$(ARCH)/Makefile take precedence over # this default value @@ -510,7 +510,7 @@ export INSTALL_PATH ?= /boot # # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the -# makefile but the arguement can be passed to make if needed. +# makefile but the argument can be passed to make if needed. # MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) @@ -556,7 +556,7 @@ libs-y := $(libs-y1) $(libs-y2) # Build vmlinux # --------------------------------------------------------------------------- -# vmlinux is build from the objects selected by $(vmlinux-init) and +# vmlinux is built from the objects selected by $(vmlinux-init) and # $(vmlinux-main). Most are built-in.o files from top-level directories # in the kernel tree, others are specified in arch/$(ARCH)Makefile. # Ordering when linking is important, and $(vmlinux-init) must be first. @@ -607,7 +607,7 @@ quiet_cmd_vmlinux_version = GEN .version $(MAKE) $(build)=init # Generate System.map -quiet_cmd_sysmap = SYSMAP +quiet_cmd_sysmap = SYSMAP cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap # Link of vmlinux @@ -754,10 +754,10 @@ _localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f))) localver = $(subst $(space),, \ $(shell cat /dev/null $(_localver)) \ $(patsubst "%",%,$(CONFIG_LOCALVERSION))) - + # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called # and if the SCM is know a tag from the SCM is appended. -# The appended tag is determinded by the SCM used. +# The appended tag is determined by the SCM used. # # Currently, only git is supported. # Other SCMs can edit scripts/setlocalversion and add the appropriate @@ -823,14 +823,14 @@ prepare0: archprepare FORCE # All the preparing.. prepare prepare-all: prepare0 -# Leave this as default for preprocessing vmlinux.lds.S, which is now -# done in arch/$(ARCH)/kernel/Makefile +# Leave this as default for preprocessing vmlinux.lds.S, which is now +# done in arch/$(ARCH)/kernel/Makefile export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) -# FIXME: The asm symlink changes when $(ARCH) changes. That's -# hard to detect, but I suppose "make mrproper" is a good idea -# before switching between archs anyway. +# FIXME: The asm symlink changes when $(ARCH) changes. That's +# hard to detect, but I suppose "make mrproper" is a good idea +# before switching between archs anyway. include/asm: @echo ' SYMLINK $@ -> include/asm-$(ARCH)' @@ -870,7 +870,7 @@ depend dep: ifdef CONFIG_MODULES -# By default, build modules as well +# By default, build modules as well all: modules @@ -968,7 +968,7 @@ clean: archclean $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) @find . $(RCS_FIND_IGNORE) \ - \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ + \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ -o -name '*.symtypes' \) \ -type f -print | xargs rm -f @@ -993,9 +993,9 @@ PHONY += distclean distclean: mrproper @find $(srctree) $(RCS_FIND_IGNORE) \ - \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ + \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ - -o -name '.*.rej' -o -size 0 \ + -o -name '.*.rej' -o -size 0 \ -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ -type f -print | xargs rm -f @@ -1088,7 +1088,7 @@ else # KBUILD_EXTMOD # make M=dir modules Make all modules in specified dir # make M=dir Same as 'make M=dir modules' # make M=dir modules_install -# Install the modules build in the module directory +# Install the modules built in the module directory # Assumes install directory is already created # We are always building modules @@ -1147,7 +1147,7 @@ clean: rm-dirs := $(MODVERDIR) clean: $(clean-dirs) $(call cmd,rmdirs) @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ - \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ + \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ -type f -print | xargs rm -f @@ -1186,7 +1186,7 @@ else ALLINCLUDE_ARCHS := $(ARCH) endif else -#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour. +#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behavour. ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS) endif -- cgit v1.2.3 From 7999d8d7a611bee902446939952859caf1367c25 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 25 Jun 2006 11:17:23 +0100 Subject: [ARM] Remove RETINSTR macro RETINSTR is a left-over from the days when we had 26-bit and 32-bit CPU support integrated into the same tree. Since this is no longer the case, we can now remove RETINSTR. Signed-off-by: Russell King --- arch/arm/kernel/entry-common.S | 2 +- arch/arm/lib/delay.S | 18 +++++++++--------- arch/arm/lib/findbit.S | 10 +++++----- arch/arm/lib/io-readsw-armv3.S | 2 +- arch/arm/lib/io-writesw-armv3.S | 2 +- arch/arm/lib/memchr.S | 2 +- arch/arm/lib/memset.S | 2 +- arch/arm/lib/memzero.S | 2 +- arch/arm/lib/strchr.S | 2 +- arch/arm/lib/strrchr.S | 2 +- include/asm-arm/assembler.h | 6 ------ 11 files changed, 22 insertions(+), 28 deletions(-) diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index b5bcebca1cd..75af6d6e2f2 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -340,7 +340,7 @@ sys_mmap2: streq r5, [sp, #4] beq do_mmap2 mov r0, #-EINVAL - RETINSTR(mov,pc, lr) + mov pc, lr #else str r5, [sp, #4] b do_mmap2 diff --git a/arch/arm/lib/delay.S b/arch/arm/lib/delay.S index 9183b06c0e2..930a7025922 100644 --- a/arch/arm/lib/delay.S +++ b/arch/arm/lib/delay.S @@ -31,7 +31,7 @@ ENTRY(__const_udelay) @ 0 <= r0 <= 0x7fffff06 mov r2, r2, lsr #10 @ max = 0x00007fff mul r0, r2, r0 @ max = 2^32-1 movs r0, r0, lsr #6 - RETINSTR(moveq,pc,lr) + moveq pc, lr /* * loops = r0 * HZ * loops_per_jiffy / 1000000 @@ -43,20 +43,20 @@ ENTRY(__const_udelay) @ 0 <= r0 <= 0x7fffff06 ENTRY(__delay) subs r0, r0, #1 #if 0 - RETINSTR(movls,pc,lr) + movls pc, lr subs r0, r0, #1 - RETINSTR(movls,pc,lr) + movls pc, lr subs r0, r0, #1 - RETINSTR(movls,pc,lr) + movls pc, lr subs r0, r0, #1 - RETINSTR(movls,pc,lr) + movls pc, lr subs r0, r0, #1 - RETINSTR(movls,pc,lr) + movls pc, lr subs r0, r0, #1 - RETINSTR(movls,pc,lr) + movls pc, lr subs r0, r0, #1 - RETINSTR(movls,pc,lr) + movls pc, lr subs r0, r0, #1 #endif bhi __delay - RETINSTR(mov,pc,lr) + mov pc, lr diff --git a/arch/arm/lib/findbit.S b/arch/arm/lib/findbit.S index 6f8e27a58c7..a5ca0248aa4 100644 --- a/arch/arm/lib/findbit.S +++ b/arch/arm/lib/findbit.S @@ -32,7 +32,7 @@ ENTRY(_find_first_zero_bit_le) 2: cmp r2, r1 @ any more? blo 1b 3: mov r0, r1 @ no free bits - RETINSTR(mov,pc,lr) + mov pc, lr /* * Purpose : Find next 'zero' bit @@ -66,7 +66,7 @@ ENTRY(_find_first_bit_le) 2: cmp r2, r1 @ any more? blo 1b 3: mov r0, r1 @ no free bits - RETINSTR(mov,pc,lr) + mov pc, lr /* * Purpose : Find next 'one' bit @@ -98,7 +98,7 @@ ENTRY(_find_first_zero_bit_be) 2: cmp r2, r1 @ any more? blo 1b 3: mov r0, r1 @ no free bits - RETINSTR(mov,pc,lr) + mov pc, lr ENTRY(_find_next_zero_bit_be) teq r1, #0 @@ -126,7 +126,7 @@ ENTRY(_find_first_bit_be) 2: cmp r2, r1 @ any more? blo 1b 3: mov r0, r1 @ no free bits - RETINSTR(mov,pc,lr) + mov pc, lr ENTRY(_find_next_bit_be) teq r1, #0 @@ -164,5 +164,5 @@ ENTRY(_find_next_bit_be) addeq r2, r2, #1 mov r0, r2 #endif - RETINSTR(mov,pc,lr) + mov pc, lr diff --git a/arch/arm/lib/io-readsw-armv3.S b/arch/arm/lib/io-readsw-armv3.S index 146d47c1545..2639983219b 100644 --- a/arch/arm/lib/io-readsw-armv3.S +++ b/arch/arm/lib/io-readsw-armv3.S @@ -28,7 +28,7 @@ strb r3, [r1], #1 subs r2, r2, #1 - RETINSTR(moveq, pc, lr) + moveq pc, lr ENTRY(__raw_readsw) teq r2, #0 @ do we have to check for the zero len? diff --git a/arch/arm/lib/io-writesw-armv3.S b/arch/arm/lib/io-writesw-armv3.S index 52d62b48129..c421f92eeb2 100644 --- a/arch/arm/lib/io-writesw-armv3.S +++ b/arch/arm/lib/io-writesw-armv3.S @@ -29,7 +29,7 @@ orr r3, r3, r3, lsl #16 str r3, [r0] subs r2, r2, #1 - RETINSTR(moveq, pc, lr) + moveq pc, lr ENTRY(__raw_writesw) teq r2, #0 @ do we have to check for the zero len? diff --git a/arch/arm/lib/memchr.S b/arch/arm/lib/memchr.S index ac34fe55d21..e7ab1ea8eba 100644 --- a/arch/arm/lib/memchr.S +++ b/arch/arm/lib/memchr.S @@ -22,4 +22,4 @@ ENTRY(memchr) bne 1b sub r0, r0, #1 2: movne r0, #0 - RETINSTR(mov,pc,lr) + mov pc, lr diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S index a1795f59993..69e7c31f338 100644 --- a/arch/arm/lib/memset.S +++ b/arch/arm/lib/memset.S @@ -77,4 +77,4 @@ ENTRY(memset) strneb r1, [r0], #1 tst r2, #1 strneb r1, [r0], #1 - RETINSTR(mov,pc,lr) + mov pc, lr diff --git a/arch/arm/lib/memzero.S b/arch/arm/lib/memzero.S index 51ccc60160f..764e7de8bba 100644 --- a/arch/arm/lib/memzero.S +++ b/arch/arm/lib/memzero.S @@ -77,4 +77,4 @@ ENTRY(__memzero) strneb r2, [r0], #1 @ 1 tst r1, #1 @ 1 a byte left over strneb r2, [r0], #1 @ 1 - RETINSTR(mov,pc,lr) @ 1 + mov pc, lr @ 1 diff --git a/arch/arm/lib/strchr.S b/arch/arm/lib/strchr.S index 5b9b493733f..9f18d6fdee6 100644 --- a/arch/arm/lib/strchr.S +++ b/arch/arm/lib/strchr.S @@ -23,4 +23,4 @@ ENTRY(strchr) teq r2, r1 movne r0, #0 subeq r0, r0, #1 - RETINSTR(mov,pc,lr) + mov pc, lr diff --git a/arch/arm/lib/strrchr.S b/arch/arm/lib/strrchr.S index fa923f026f1..538df220aa4 100644 --- a/arch/arm/lib/strrchr.S +++ b/arch/arm/lib/strrchr.S @@ -22,4 +22,4 @@ ENTRY(strrchr) teq r2, #0 bne 1b mov r0, r3 - RETINSTR(mov,pc,lr) + mov pc, lr diff --git a/include/asm-arm/assembler.h b/include/asm-arm/assembler.h index d53bafa9bf1..930dd905f1e 100644 --- a/include/asm-arm/assembler.h +++ b/include/asm-arm/assembler.h @@ -73,12 +73,6 @@ ldm/**/cond base,reglist #endif -/* - * Build a return instruction for this processor type. - */ -#define RETINSTR(instr, regs...)\ - instr regs - /* * Enable and disable interrupts */ -- cgit v1.2.3 From 1b93a71755f2b15450b3e3045dab58a633e37b18 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 25 Jun 2006 11:23:45 +0100 Subject: [ARM] Remove LOADREGS macro As for RETINSTR, LOADREGS is a left-over from the 26-bit days. Remove it. Signed-off-by: Russell King --- arch/arm/boot/compressed/ll_char_wr.S | 6 +++--- arch/arm/lib/backtrace.S | 8 ++++---- arch/arm/lib/clear_user.S | 4 ++-- arch/arm/lib/copy_page.S | 2 +- arch/arm/lib/csumipv6.S | 2 +- arch/arm/lib/ecard.S | 4 ++-- arch/arm/lib/io-readsb.S | 6 +++--- arch/arm/lib/io-readsw-armv3.S | 4 ++-- arch/arm/lib/io-writesb.S | 6 +++--- arch/arm/lib/io-writesw-armv3.S | 4 ++-- arch/arm/lib/memset.S | 2 +- arch/arm/lib/memzero.S | 2 +- arch/arm/lib/uaccess.S | 8 ++++---- arch/arm/mm/copypage-v3.S | 2 +- include/asm-arm/assembler.h | 11 ----------- 15 files changed, 30 insertions(+), 41 deletions(-) diff --git a/arch/arm/boot/compressed/ll_char_wr.S b/arch/arm/boot/compressed/ll_char_wr.S index d7bbd9da2fc..8517c8606b4 100644 --- a/arch/arm/boot/compressed/ll_char_wr.S +++ b/arch/arm/boot/compressed/ll_char_wr.S @@ -77,7 +77,7 @@ Lrow4bpplp: subne r1, r1, #1 ldrneb r7, [r6, r1] bne Lrow4bpplp - LOADREGS(fd, sp!, {r4 - r7, pc}) + ldmfd sp!, {r4 - r7, pc} @ @ Smashable regs: {r0 - r3}, [r4], {r5 - r7}, (r8 - fp), [ip], (sp), {lr}, (pc) @@ -105,7 +105,7 @@ Lrow8bpplp: subne r1, r1, #1 ldrneb r7, [r6, r1] bne Lrow8bpplp - LOADREGS(fd, sp!, {r4 - r7, pc}) + ldmfd sp!, {r4 - r7, pc} @ @ Smashable regs: {r0 - r3}, [r4], {r5, r6}, [r7], (r8 - fp), [ip], (sp), [lr], (pc) @@ -127,7 +127,7 @@ Lrow1bpp: strb r7, [r0], r5 mov r7, r7, lsr #8 strb r7, [r0], r5 - LOADREGS(fd, sp!, {r4 - r7, pc}) + ldmfd sp!, {r4 - r7, pc} .bss ENTRY(con_charconvtable) diff --git a/arch/arm/lib/backtrace.S b/arch/arm/lib/backtrace.S index 16153c86c3f..058b80d72aa 100644 --- a/arch/arm/lib/backtrace.S +++ b/arch/arm/lib/backtrace.S @@ -41,7 +41,7 @@ ENTRY(c_backtrace) movne r0, #0 movs frame, r0 1: moveq r0, #-2 - LOADREGS(eqfd, sp!, {r4 - r8, pc}) + ldmeqfd sp!, {r4 - r8, pc} 2: stmfd sp!, {pc} @ calculate offset of PC in STMIA instruction ldr r0, [sp], #4 @@ -85,7 +85,7 @@ ENTRY(c_backtrace) * A zero next framepointer means we're done. */ teq next, #0 - LOADREGS(eqfd, sp!, {r4 - r8, pc}) + ldmeqfd sp!, {r4 - r8, pc} /* * The next framepointer must be above the @@ -104,7 +104,7 @@ ENTRY(c_backtrace) 1007: ldr r0, =.Lbad mov r1, frame bl printk - LOADREGS(fd, sp!, {r4 - r8, pc}) + ldmfd sp!, {r4 - r8, pc} .ltorg .previous @@ -145,7 +145,7 @@ ENTRY(c_backtrace) adrne r0, .Lcr blne printk mov r0, stack - LOADREGS(fd, sp!, {instr, reg, stack, r7, r8, pc}) + ldmfd sp!, {instr, reg, stack, r7, r8, pc} .Lfp: .asciz " r%d = %08X%c" .Lcr: .asciz "\n" diff --git a/arch/arm/lib/clear_user.S b/arch/arm/lib/clear_user.S index 7ff9f831b3f..ea435ae2e4a 100644 --- a/arch/arm/lib/clear_user.S +++ b/arch/arm/lib/clear_user.S @@ -43,10 +43,10 @@ USER( strnebt r2, [r0], #1) tst r1, #1 @ x1 x0 x1 x0 x1 x0 x1 USER( strnebt r2, [r0], #1) mov r0, #0 - LOADREGS(fd,sp!, {r1, pc}) + ldmfd sp!, {r1, pc} .section .fixup,"ax" .align 0 -9001: LOADREGS(fd,sp!, {r0, pc}) +9001: ldmfd sp!, {r0, pc} .previous diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S index 68117968482..666c99cc074 100644 --- a/arch/arm/lib/copy_page.S +++ b/arch/arm/lib/copy_page.S @@ -43,4 +43,4 @@ ENTRY(copy_page) bgt 1b @ 1 PLD( ldmeqia r1!, {r3, r4, ip, lr} ) PLD( beq 2b ) - LOADREGS(fd, sp!, {r4, pc}) @ 3 + ldmfd sp!, {r4, pc} @ 3 diff --git a/arch/arm/lib/csumipv6.S b/arch/arm/lib/csumipv6.S index 7065a20ee8a..9621469beec 100644 --- a/arch/arm/lib/csumipv6.S +++ b/arch/arm/lib/csumipv6.S @@ -28,5 +28,5 @@ ENTRY(__csum_ipv6_magic) adcs r0, r0, r3 adcs r0, r0, r2 adcs r0, r0, #0 - LOADREGS(fd, sp!, {pc}) + ldmfd sp!, {pc} diff --git a/arch/arm/lib/ecard.S b/arch/arm/lib/ecard.S index fb7b602a6f7..c55aaa2a208 100644 --- a/arch/arm/lib/ecard.S +++ b/arch/arm/lib/ecard.S @@ -29,7 +29,7 @@ ENTRY(ecard_loader_read) CPSR2SPSR(r0) mov lr, pc mov pc, r2 - LOADREGS(fd, sp!, {r4 - r12, pc}) + ldmfd sp!, {r4 - r12, pc} @ Purpose: call an expansion card loader to reset the card @ Proto : void read_loader(int card_base, char *loader); @@ -41,5 +41,5 @@ ENTRY(ecard_loader_reset) CPSR2SPSR(r0) mov lr, pc add pc, r1, #8 - LOADREGS(fd, sp!, {r4 - r12, pc}) + ldmfd sp!, {r4 - r12, pc} diff --git a/arch/arm/lib/io-readsb.S b/arch/arm/lib/io-readsb.S index d3d8de71a2c..fb966ad0276 100644 --- a/arch/arm/lib/io-readsb.S +++ b/arch/arm/lib/io-readsb.S @@ -72,7 +72,7 @@ ENTRY(__raw_readsb) bpl .Linsb_16_lp tst r2, #15 - LOADREGS(eqfd, sp!, {r4 - r6, pc}) + ldmeqfd sp!, {r4 - r6, pc} .Linsb_no_16: tst r2, #8 beq .Linsb_no_8 @@ -109,7 +109,7 @@ ENTRY(__raw_readsb) str r3, [r1], #4 .Linsb_no_4: ands r2, r2, #3 - LOADREGS(eqfd, sp!, {r4 - r6, pc}) + ldmeqfd sp!, {r4 - r6, pc} cmp r2, #2 ldrb r3, [r0] @@ -119,4 +119,4 @@ ENTRY(__raw_readsb) ldrgtb r3, [r0] strgtb r3, [r1] - LOADREGS(fd, sp!, {r4 - r6, pc}) + ldmfd sp!, {r4 - r6, pc} diff --git a/arch/arm/lib/io-readsw-armv3.S b/arch/arm/lib/io-readsw-armv3.S index 2639983219b..4ef90418514 100644 --- a/arch/arm/lib/io-readsw-armv3.S +++ b/arch/arm/lib/io-readsw-armv3.S @@ -69,7 +69,7 @@ ENTRY(__raw_readsw) bpl .Linsw_8_lp tst r2, #7 - LOADREGS(eqfd, sp!, {r4, r5, r6, pc}) + ldmeqfd sp!, {r4, r5, r6, pc} .Lno_insw_8: tst r2, #4 beq .Lno_insw_4 @@ -102,6 +102,6 @@ ENTRY(__raw_readsw) movne r3, r3, lsr #8 strneb r3, [r1] - LOADREGS(fd, sp!, {r4, r5, r6, pc}) + ldmfd sp!, {r4, r5, r6, pc} diff --git a/arch/arm/lib/io-writesb.S b/arch/arm/lib/io-writesb.S index 08209fc640e..7eba2b6cc69 100644 --- a/arch/arm/lib/io-writesb.S +++ b/arch/arm/lib/io-writesb.S @@ -64,7 +64,7 @@ ENTRY(__raw_writesb) bpl .Loutsb_16_lp tst r2, #15 - LOADREGS(eqfd, sp!, {r4, r5, pc}) + ldmeqfd sp!, {r4, r5, pc} .Loutsb_no_16: tst r2, #8 beq .Loutsb_no_8 @@ -80,7 +80,7 @@ ENTRY(__raw_writesb) outword r3 .Loutsb_no_4: ands r2, r2, #3 - LOADREGS(eqfd, sp!, {r4, r5, pc}) + ldmeqfd sp!, {r4, r5, pc} cmp r2, #2 ldrb r3, [r1], #1 @@ -90,4 +90,4 @@ ENTRY(__raw_writesb) ldrgtb r3, [r1] strgtb r3, [r0] - LOADREGS(fd, sp!, {r4, r5, pc}) + ldmfd sp!, {r4, r5, pc} diff --git a/arch/arm/lib/io-writesw-armv3.S b/arch/arm/lib/io-writesw-armv3.S index c421f92eeb2..1607a29f49b 100644 --- a/arch/arm/lib/io-writesw-armv3.S +++ b/arch/arm/lib/io-writesw-armv3.S @@ -80,7 +80,7 @@ ENTRY(__raw_writesw) bpl .Loutsw_8_lp tst r2, #7 - LOADREGS(eqfd, sp!, {r4, r5, r6, pc}) + ldmeqfd sp!, {r4, r5, r6, pc} .Lno_outsw_8: tst r2, #4 beq .Lno_outsw_4 @@ -124,4 +124,4 @@ ENTRY(__raw_writesw) orrne ip, ip, ip, lsr #16 strne ip, [r0] - LOADREGS(fd, sp!, {r4, r5, r6, pc}) + ldmfd sp!, {r4, r5, r6, pc} diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S index 69e7c31f338..95b110b07a8 100644 --- a/arch/arm/lib/memset.S +++ b/arch/arm/lib/memset.S @@ -53,7 +53,7 @@ ENTRY(memset) stmgeia r0!, {r1, r3, ip, lr} stmgeia r0!, {r1, r3, ip, lr} bgt 2b - LOADREGS(eqfd, sp!, {pc}) @ Now <64 bytes to go. + ldmeqfd sp!, {pc} @ Now <64 bytes to go. /* * No need to correct the count; we're only testing bits from now on */ diff --git a/arch/arm/lib/memzero.S b/arch/arm/lib/memzero.S index 764e7de8bba..abf2508e822 100644 --- a/arch/arm/lib/memzero.S +++ b/arch/arm/lib/memzero.S @@ -53,7 +53,7 @@ ENTRY(__memzero) stmgeia r0!, {r2, r3, ip, lr} @ 4 stmgeia r0!, {r2, r3, ip, lr} @ 4 bgt 3b @ 1 - LOADREGS(eqfd, sp!, {pc}) @ 1/2 quick exit + ldmeqfd sp!, {pc} @ 1/2 quick exit /* * No need to correct the count; we're only testing bits from now on */ diff --git a/arch/arm/lib/uaccess.S b/arch/arm/lib/uaccess.S index 0cc450f863b..1f1545d737b 100644 --- a/arch/arm/lib/uaccess.S +++ b/arch/arm/lib/uaccess.S @@ -105,7 +105,7 @@ USER( strgtbt r3, [r0], #1) @ May fault movs ip, r2 bne .Lc2u_nowords .Lc2u_finished: mov r0, #0 - LOADREGS(fd,sp!,{r2, r4 - r7, pc}) + ldmfd sp!, {r2, r4 - r7, pc} .Lc2u_src_not_aligned: bic r1, r1, #3 @@ -280,7 +280,7 @@ USER( strgtbt r3, [r0], #1) @ May fault .section .fixup,"ax" .align 0 -9001: LOADREGS(fd,sp!, {r0, r4 - r7, pc}) +9001: ldmfd sp!, {r0, r4 - r7, pc} .previous /* Prototype: unsigned long __arch_copy_from_user(void *to,const void *from,unsigned long n); @@ -369,7 +369,7 @@ USER( ldrgtbt r3, [r1], #1) @ May fault bne .Lcfu_nowords .Lcfu_finished: mov r0, #0 add sp, sp, #8 - LOADREGS(fd,sp!,{r4 - r7, pc}) + ldmfd sp!, {r4 - r7, pc} .Lcfu_src_not_aligned: bic r1, r1, #3 @@ -556,6 +556,6 @@ USER( ldrgtbt r3, [r1], #1) @ May fault movne r1, r4 blne __memzero mov r0, r4 - LOADREGS(fd,sp!, {r4 - r7, pc}) + ldmfd sp!, {r4 - r7, pc} .previous diff --git a/arch/arm/mm/copypage-v3.S b/arch/arm/mm/copypage-v3.S index 3c58ebbf035..2ee394b11bc 100644 --- a/arch/arm/mm/copypage-v3.S +++ b/arch/arm/mm/copypage-v3.S @@ -35,7 +35,7 @@ ENTRY(v3_copy_user_page) stmia r0!, {r3, r4, ip, lr} @ 4 ldmneia r1!, {r3, r4, ip, lr} @ 4 bne 1b @ 1 - LOADREGS(fd, sp!, {r4, pc}) @ 3 + ldmfd sp!, {r4, pc} @ 3 .align 5 /* diff --git a/include/asm-arm/assembler.h b/include/asm-arm/assembler.h index 930dd905f1e..add451ab894 100644 --- a/include/asm-arm/assembler.h +++ b/include/asm-arm/assembler.h @@ -62,17 +62,6 @@ #define DEFAULT_FIQ MODE_FIQ -/* - * LOADREGS - ldm with PC in register list (eg, ldmfd sp!, {pc}) - */ -#ifdef __STDC__ -#define LOADREGS(cond, base, reglist...)\ - ldm##cond base,reglist -#else -#define LOADREGS(cond, base, reglist...)\ - ldm/**/cond base,reglist -#endif - /* * Enable and disable interrupts */ -- cgit v1.2.3 From 800d8b5c4b322798414100c253524aaf1bb9cb86 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 25 Jun 2006 11:31:22 +0100 Subject: [ARM] Remove partial non-v6 binutils compatibility proc-v6 contains some compatibility to be able to use the V6 "cps" instruction. However, the kernel makes use of this instruction elsewhere extensively, so there's no point keeping this compatibility anymore. Signed-off-by: Russell King --- arch/arm/mm/proc-v6.S | 32 -------------------------------- 1 file changed, 32 deletions(-) diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index ee6f1529873..09b1a41a6de 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -29,38 +29,6 @@ #define TTB_RGN_WT (2 << 3) #define TTB_RGN_WB (3 << 3) - .macro cpsie, flags - .ifc \flags, f - .long 0xf1080040 - .exitm - .endif - .ifc \flags, i - .long 0xf1080080 - .exitm - .endif - .ifc \flags, if - .long 0xf10800c0 - .exitm - .endif - .err - .endm - - .macro cpsid, flags - .ifc \flags, f - .long 0xf10c0040 - .exitm - .endif - .ifc \flags, i - .long 0xf10c0080 - .exitm - .endif - .ifc \flags, if - .long 0xf10c00c0 - .exitm - .endif - .err - .endm - ENTRY(cpu_v6_proc_init) mov pc, lr -- cgit v1.2.3 From 405040a78b33e39edf4180fc993b9608f07d3c41 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 25 Jun 2006 11:37:09 +0100 Subject: [ARM] Remove save_lr/restore_pc macros As for RETINSTR/LOADREGS macros, these were for compatibility with 26-bit ARMs. No longer required, so remove them. Signed-off-by: Russell King --- arch/arm/lib/strncpy_from_user.S | 5 ++--- arch/arm/lib/strnlen_user.S | 5 ++--- include/asm-arm/assembler.h | 12 ------------ 3 files changed, 4 insertions(+), 18 deletions(-) diff --git a/arch/arm/lib/strncpy_from_user.S b/arch/arm/lib/strncpy_from_user.S index 629cc877527..35649f04fca 100644 --- a/arch/arm/lib/strncpy_from_user.S +++ b/arch/arm/lib/strncpy_from_user.S @@ -21,7 +21,6 @@ * -EFAULT on exception, or "len" if we fill the whole buffer */ ENTRY(__arch_strncpy_from_user) - save_lr mov ip, r1 1: subs r2, r2, #1 USER( ldrplbt r3, [r1], #1) @@ -31,13 +30,13 @@ USER( ldrplbt r3, [r1], #1) bne 1b sub r1, r1, #1 @ take NUL character out of count 2: sub r0, r1, ip - restore_pc + mov pc, lr .section .fixup,"ax" .align 0 9001: mov r3, #0 strb r3, [r0, #0] @ null terminate mov r0, #-EFAULT - restore_pc + mov pc, lr .previous diff --git a/arch/arm/lib/strnlen_user.S b/arch/arm/lib/strnlen_user.S index 67bcd826812..3668a15991e 100644 --- a/arch/arm/lib/strnlen_user.S +++ b/arch/arm/lib/strnlen_user.S @@ -21,7 +21,6 @@ * or zero on exception, or n + 1 if too long */ ENTRY(__arch_strnlen_user) - save_lr mov r2, r0 1: USER( ldrbt r3, [r0], #1) @@ -31,10 +30,10 @@ USER( ldrbt r3, [r0], #1) bne 1b add r0, r0, #1 2: sub r0, r0, r2 - restore_pc + mov pc, lr .section .fixup,"ax" .align 0 9001: mov r0, #0 - restore_pc + mov pc, lr .previous diff --git a/include/asm-arm/assembler.h b/include/asm-arm/assembler.h index add451ab894..b97cb3e1ba7 100644 --- a/include/asm-arm/assembler.h +++ b/include/asm-arm/assembler.h @@ -100,18 +100,6 @@ msr cpsr_c, \oldcpsr .endm -/* - * These two are used to save LR/restore PC over a user-based access. - * The old 26-bit architecture requires that we do. On 32-bit - * architecture, we can safely ignore this requirement. - */ - .macro save_lr - .endm - - .macro restore_pc - mov pc, lr - .endm - #define USER(x...) \ 9999: x; \ .section __ex_table,"a"; \ -- cgit v1.2.3 From 801194e3bcf7cde163b23c6279c559e69cb4ca57 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 25 Jun 2006 12:01:48 +0100 Subject: [ARM] Remove MODE_(SVC|IRQ|FIQ|USR) and DEFAULT_FIQ DEFAULT_FIQ was entirely unused. MODE_* are just redefinitions of *_MODE. Use *_MODE instead. Signed-off-by: Russell King --- arch/arm/kernel/head-nommu.S | 2 +- arch/arm/kernel/head.S | 4 ++-- arch/arm/mach-pxa/sleep.S | 2 +- arch/arm/mach-s3c2410/sleep.S | 2 +- arch/arm/mach-sa1100/sleep.S | 2 +- arch/arm/nwfpe/entry26.S | 2 +- include/asm-arm/assembler.h | 7 ------- 7 files changed, 7 insertions(+), 14 deletions(-) diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index adf62e5eaad..2af7e44218a 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -39,7 +39,7 @@ __INIT .type stext, %function ENTRY(stext) - msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | MODE_SVC @ ensure svc mode + msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode @ and irqs disabled mrc p15, 0, r9, c0, c0 @ get processor id bl __lookup_processor_type @ r5=procinfo r9=cpuid diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 04f7344e356..330b9476c39 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -71,7 +71,7 @@ __INIT .type stext, %function ENTRY(stext) - msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | MODE_SVC @ ensure svc mode + msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode @ and irqs disabled mrc p15, 0, r9, c0, c0 @ get processor id bl __lookup_processor_type @ r5=procinfo r9=cpuid @@ -104,7 +104,7 @@ ENTRY(secondary_startup) * the processor type - there is no need to check the machine type * as it has already been validated by the primary processor. */ - msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | MODE_SVC + msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE mrc p15, 0, r9, c0, c0 @ get processor id bl __lookup_processor_type movs r10, r5 @ invalid processor? diff --git a/arch/arm/mach-pxa/sleep.S b/arch/arm/mach-pxa/sleep.S index c9862688ff3..0650bed3b96 100644 --- a/arch/arm/mach-pxa/sleep.S +++ b/arch/arm/mach-pxa/sleep.S @@ -189,7 +189,7 @@ ENTRY(pxa_cpu_suspend) .data .align 5 ENTRY(pxa_cpu_resume) - mov r0, #PSR_I_BIT | PSR_F_BIT | MODE_SVC @ set SVC, irqs off + mov r0, #PSR_I_BIT | PSR_F_BIT | SVC_MODE @ set SVC, irqs off msr cpsr_c, r0 ldr r0, sleep_save_sp @ stack phys addr diff --git a/arch/arm/mach-s3c2410/sleep.S b/arch/arm/mach-s3c2410/sleep.S index 5f6761ed96b..dc27167f4d5 100644 --- a/arch/arm/mach-s3c2410/sleep.S +++ b/arch/arm/mach-s3c2410/sleep.S @@ -128,7 +128,7 @@ s3c2410_sleep_save_phys: */ ENTRY(s3c2410_cpu_resume) - mov r0, #PSR_I_BIT | PSR_F_BIT | MODE_SVC + mov r0, #PSR_I_BIT | PSR_F_BIT | SVC_MODE msr cpsr_c, r0 @@ load UART to allow us to print the two characters for diff --git a/arch/arm/mach-sa1100/sleep.S b/arch/arm/mach-sa1100/sleep.S index 2fa1e289d17..5a84062f92a 100644 --- a/arch/arm/mach-sa1100/sleep.S +++ b/arch/arm/mach-sa1100/sleep.S @@ -177,7 +177,7 @@ sa1110_sdram_controller_fix: .data .align 5 ENTRY(sa1100_cpu_resume) - mov r0, #PSR_F_BIT | PSR_I_BIT | MODE_SVC + mov r0, #PSR_F_BIT | PSR_I_BIT | SVC_MODE msr cpsr_c, r0 @ set SVC, irqs off ldr r0, sleep_save_sp @ stack phys addr diff --git a/arch/arm/nwfpe/entry26.S b/arch/arm/nwfpe/entry26.S index 51940a96d6a..3e6fb5d21d6 100644 --- a/arch/arm/nwfpe/entry26.S +++ b/arch/arm/nwfpe/entry26.S @@ -26,7 +26,7 @@ It is called from the kernel with code similar to this: mov fp, #0 - teqp pc, #PSR_I_BIT | MODE_SVC + teqp pc, #PSR_I_BIT | SVC_MODE ldr r4, .LC2 ldr pc, [r4] @ Call FP module USR entry point diff --git a/include/asm-arm/assembler.h b/include/asm-arm/assembler.h index b97cb3e1ba7..fce83282082 100644 --- a/include/asm-arm/assembler.h +++ b/include/asm-arm/assembler.h @@ -55,13 +55,6 @@ #define PLD(code...) #endif -#define MODE_USR USR_MODE -#define MODE_FIQ FIQ_MODE -#define MODE_IRQ IRQ_MODE -#define MODE_SVC SVC_MODE - -#define DEFAULT_FIQ MODE_FIQ - /* * Enable and disable interrupts */ -- cgit v1.2.3 From f90f00a358fe887fe5c3454897521064bdace7cc Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 25 Jun 2006 15:59:32 +0000 Subject: [CIFS] Fix compile warning when CONFIG_CIFS_EXPERIMENTAL is off Signed-off-by: Steve French --- fs/cifs/cifsproto.h | 2 -- fs/cifs/cifssmb.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 7ed06bfa192..a5ddc62d6fe 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -64,11 +64,9 @@ extern int map_smb_to_linux_error(struct smb_hdr *smb); extern void header_assemble(struct smb_hdr *, char /* command */ , const struct cifsTconInfo *, int /* length of fixed section (word count) in two byte units */); -#ifdef CONFIG_CIFS_EXPERIMENTAL extern int small_smb_init_no_tc(const int smb_cmd, const int wct, struct cifsSesInfo *ses, void ** request_buf); -#endif extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, const int stage, const struct nls_table *nls_cp); diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 271a037a386..38f83db2076 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -209,7 +209,6 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, return rc; } -#ifdef CONFIG_CIFS_EXPERIMENTAL int small_smb_init_no_tc(const int smb_command, const int wct, struct cifsSesInfo *ses, void **request_buf) @@ -235,7 +234,6 @@ small_smb_init_no_tc(const int smb_command, const int wct, return rc; } -#endif /* CONFIG_CIFS_EXPERIMENTAL */ /* If the return code is zero, this function must fill in request_buf pointer */ static int -- cgit v1.2.3 From 689391210a4a8a1bf35119f87c51b3e01ef549e6 Mon Sep 17 00:00:00 2001 From: Milan Svoboda Date: Sun, 25 Jun 2006 22:12:12 +0100 Subject: [ARM] 3612/1: make pci bus optional for ixp4xx platform Patch from Milan Svoboda IXP4XX platform can happily live without pci bus. This patch modifies Kconfig to support this option and modifies Makefile so pci only files are compiled only when pci is really selected. Patch is tested and ixdp465 runs fine with or without the pci bus.-- Signed-off-by: Milan Svoboda Signed-off-by: Deepak Saxena Signed-off-by: Russell King --- arch/arm/Kconfig | 2 +- arch/arm/mach-ixp4xx/Kconfig | 3 --- arch/arm/mach-ixp4xx/Makefile | 24 +++++++++++++++++------- 3 files changed, 18 insertions(+), 11 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1b7e5c2e90e..114a5e0dbff 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -372,7 +372,7 @@ config ISA_DMA_API bool config PCI - bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB + bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig index 3b23f43cb16..57f23b46539 100644 --- a/arch/arm/mach-ixp4xx/Kconfig +++ b/arch/arm/mach-ixp4xx/Kconfig @@ -35,7 +35,6 @@ config ARCH_ADI_COYOTE config ARCH_IXDP425 bool "IXDP425" - select PCI help Say 'Y' here if you want your kernel to support Intel's IXDP425 Development Platform (Also known as Richfield). @@ -43,7 +42,6 @@ config ARCH_IXDP425 config MACH_IXDPG425 bool "IXDPG425" - select PCI help Say 'Y' here if you want your kernel to support Intel's IXDPG425 Development Platform (Also known as Montajade). @@ -51,7 +49,6 @@ config MACH_IXDPG425 config MACH_IXDP465 bool "IXDP465" - select PCI help Say 'Y' here if you want your kernel to support Intel's IXDP465 Development Platform (Also known as BMP). diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile index 5a4aaa0e0a0..640315d8b96 100644 --- a/arch/arm/mach-ixp4xx/Makefile +++ b/arch/arm/mach-ixp4xx/Makefile @@ -2,13 +2,23 @@ # Makefile for the linux kernel. # +obj-pci-y := +obj-pci-n := + +obj-pci-$(CONFIG_ARCH_IXDP4XX) += ixdp425-pci.o +obj-pci-$(CONFIG_MACH_IXDPG425) += ixdpg425-pci.o +obj-pci-$(CONFIG_ARCH_ADI_COYOTE) += coyote-pci.o +obj-pci-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o +obj-pci-$(CONFIG_MACH_NSLU2) += nslu2-pci.o +obj-pci-$(CONFIG_MACH_NAS100D) += nas100d-pci.o + obj-y += common.o -obj-$(CONFIG_PCI) += common-pci.o -obj-$(CONFIG_ARCH_IXDP4XX) += ixdp425-pci.o ixdp425-setup.o -obj-$(CONFIG_MACH_IXDPG425) += ixdpg425-pci.o coyote-setup.o -obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-pci.o coyote-setup.o -obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o gtwx5715-setup.o -obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o -obj-$(CONFIG_MACH_NAS100D) += nas100d-pci.o nas100d-setup.o nas100d-power.o +obj-$(CONFIG_ARCH_IXDP4XX) += ixdp425-setup.o +obj-$(CONFIG_MACH_IXDPG425) += coyote-setup.o +obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o +obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o +obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o nslu2-power.o +obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o nas100d-power.o +obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o -- cgit v1.2.3 From cd49b492fe3fef0b6348f18001f0d73f2577eb01 Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 26 Jun 2006 04:22:36 +0000 Subject: [CIFS] remove some redundant null pointer checks some of them pointed out by Dave Jones Signed-off-by: Steve French --- fs/cifs/connect.c | 45 +++++++++++++++------------------------------ 1 file changed, 15 insertions(+), 30 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 01608bb4d67..c0f98ddea88 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2173,8 +2173,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, if (remaining_words > 0) { len = UniStrnlen((wchar_t *)bcc_ptr, remaining_words-1); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(2 * (len + 1),GFP_KERNEL); if(ses->serverNOS == NULL) goto sesssetup_nomem; @@ -2214,12 +2213,10 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, /* if these kcallocs fail not much we can do, but better to not fail the sesssetup itself */ - if(ses->serverDomain) - kfree(ses->serverDomain); + kfree(ses->serverDomain); ses->serverDomain = kzalloc(2, GFP_KERNEL); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(2, GFP_KERNEL); } @@ -2228,8 +2225,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, if (((long) bcc_ptr + len) - (long) pByteArea(smb_buffer_response) <= BCC(smb_buffer_response)) { - if(ses->serverOS) - kfree(ses->serverOS); + kfree(ses->serverOS); ses->serverOS = kzalloc(len + 1,GFP_KERNEL); if(ses->serverOS == NULL) goto sesssetup_nomem; @@ -2240,8 +2236,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(len + 1,GFP_KERNEL); if(ses->serverNOS == NULL) goto sesssetup_nomem; @@ -2508,8 +2503,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, bcc_ptr, remaining_words - 1); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(2 * (len + 1), GFP_KERNEL); @@ -2527,8 +2521,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, if (remaining_words > 0) { len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ - if(ses->serverDomain) - kfree(ses->serverDomain); + kfree(ses->serverDomain); ses->serverDomain = kzalloc(2 * (len + @@ -2547,19 +2540,16 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, = 0; } /* else no more room so create dummy domain string */ else { - if(ses->serverDomain) - kfree(ses->serverDomain); + kfree(ses->serverDomain); ses->serverDomain = kzalloc(2, GFP_KERNEL); } } else { /* no room so create dummy domain and NOS string */ - if(ses->serverDomain); - kfree(ses->serverDomain); + kfree(ses->serverDomain); ses->serverDomain = kzalloc(2, GFP_KERNEL); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(2, GFP_KERNEL); } @@ -2581,8 +2571,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(len + 1, GFP_KERNEL); @@ -2592,8 +2581,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverDomain) - kfree(ses->serverDomain); + kfree(ses->serverDomain); ses->serverDomain = kzalloc(len + 1, GFP_KERNEL); @@ -2915,8 +2903,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr, remaining_words - 1); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(2 * (len + 1), GFP_KERNEL); @@ -2969,8 +2956,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, if(ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = kzalloc(2, GFP_KERNEL); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(2, GFP_KERNEL); } } else { /* ASCII */ @@ -2988,8 +2974,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverNOS) - kfree(ses->serverNOS); + kfree(ses->serverNOS); ses->serverNOS = kzalloc(len+1,GFP_KERNEL); strncpy(ses->serverNOS, bcc_ptr, len); bcc_ptr += len; -- cgit v1.2.3 From 08ffce4560e0133e10634b0dd85eecee11257a1c Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:45:10 -0400 Subject: Input: fix potential overflows in driver/input/mouse Change all sprintfs into snprintfs to make sure we won't stomp on data adjacent to our buffers. Noticed by Wouter Paesen Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/alps.c | 2 +- drivers/input/mouse/psmouse-base.c | 6 +++--- drivers/input/mouse/sermouse.c | 2 +- drivers/input/mouse/vsxxxaa.c | 22 +++++++++++++--------- 4 files changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index a0e2e797c6d..070d75330af 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -470,7 +470,7 @@ int alps_init(struct psmouse *psmouse) dev1->keybit[LONG(BTN_BACK)] |= BIT(BTN_BACK); } - sprintf(priv->phys, "%s/input1", psmouse->ps2dev.serio->phys); + snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); dev2->phys = priv->phys; dev2->name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse"; dev2->id.bustype = BUS_I8042; diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 136321a2cfd..5f21532c24f 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -1057,8 +1057,8 @@ static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_proto if (psmouse->resync_time && psmouse->poll(psmouse)) psmouse->resync_time = 0; - sprintf(psmouse->devname, "%s %s %s", - psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name); + snprintf(psmouse->devname, sizeof(psmouse->devname), "%s %s %s", + psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name); input_dev->name = psmouse->devname; input_dev->phys = psmouse->phys; @@ -1099,7 +1099,7 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv) ps2_init(&psmouse->ps2dev, serio); INIT_WORK(&psmouse->resync_work, psmouse_resync, psmouse); psmouse->dev = input_dev; - sprintf(psmouse->phys, "%s/input0", serio->phys); + snprintf(psmouse->phys, sizeof(psmouse->phys), "%s/input0", serio->phys); psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); diff --git a/drivers/input/mouse/sermouse.c b/drivers/input/mouse/sermouse.c index 2f9a04ae725..a8974243171 100644 --- a/drivers/input/mouse/sermouse.c +++ b/drivers/input/mouse/sermouse.c @@ -254,7 +254,7 @@ static int sermouse_connect(struct serio *serio, struct serio_driver *drv) goto fail; sermouse->dev = input_dev; - sprintf(sermouse->phys, "%s/input0", serio->phys); + snprintf(sermouse->phys, sizeof(sermouse->phys), "%s/input0", serio->phys); sermouse->type = serio->id.proto; input_dev->name = sermouse_protocols[sermouse->type]; diff --git a/drivers/input/mouse/vsxxxaa.c b/drivers/input/mouse/vsxxxaa.c index 36e9442a16b..7b85bc21ae4 100644 --- a/drivers/input/mouse/vsxxxaa.c +++ b/drivers/input/mouse/vsxxxaa.c @@ -153,22 +153,25 @@ vsxxxaa_detection_done (struct vsxxxaa *mouse) { switch (mouse->type) { case 0x02: - sprintf (mouse->name, "DEC VSXXX-AA/-GA mouse"); + strlcpy (mouse->name, "DEC VSXXX-AA/-GA mouse", + sizeof (mouse->name)); break; case 0x04: - sprintf (mouse->name, "DEC VSXXX-AB digitizer"); + strlcpy (mouse->name, "DEC VSXXX-AB digitizer", + sizeof (mouse->name)); break; default: - sprintf (mouse->name, "unknown DEC pointer device " - "(type = 0x%02x)", mouse->type); + snprintf (mouse->name, sizeof (mouse->name), + "unknown DEC pointer device (type = 0x%02x)", + mouse->type); break; } - printk (KERN_INFO "Found %s version 0x%02x from country 0x%02x " - "on port %s\n", mouse->name, mouse->version, - mouse->country, mouse->phys); + printk (KERN_INFO + "Found %s version 0x%02x from country 0x%02x on port %s\n", + mouse->name, mouse->version, mouse->country, mouse->phys); } /* @@ -503,8 +506,9 @@ vsxxxaa_connect (struct serio *serio, struct serio_driver *drv) mouse->dev = input_dev; mouse->serio = serio; - sprintf (mouse->name, "DEC VSXXX-AA/-GA mouse or VSXXX-AB digitizer"); - sprintf (mouse->phys, "%s/input0", serio->phys); + strlcat (mouse->name, "DEC VSXXX-AA/-GA mouse or VSXXX-AB digitizer", + sizeof (mouse->name)); + snprintf (mouse->phys, sizeof (mouse->phys), "%s/input0", serio->phys); input_dev->name = mouse->name; input_dev->phys = mouse->phys; -- cgit v1.2.3 From 10ca4c0a622a942e55dc8a6d57ebd441089c9e38 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:45:48 -0400 Subject: Input: fix potential overflows in driver/input/joystick Change all sprintfs into snprintfs to make sure we won't stomp on data adjacent to our buffers. Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/a3d.c | 2 +- drivers/input/joystick/analog.c | 23 +++++++++++++---------- drivers/input/joystick/cobra.c | 3 ++- drivers/input/joystick/db9.c | 3 ++- drivers/input/joystick/gamecon.c | 3 ++- drivers/input/joystick/gf2k.c | 2 +- drivers/input/joystick/grip.c | 3 ++- drivers/input/joystick/guillemot.c | 2 +- drivers/input/joystick/interact.c | 2 +- drivers/input/joystick/magellan.c | 2 +- drivers/input/joystick/sidewinder.c | 15 +++++++++------ drivers/input/joystick/spaceball.c | 2 +- drivers/input/joystick/spaceorb.c | 2 +- drivers/input/joystick/stinger.c | 2 +- drivers/input/joystick/twidjoy.c | 2 +- drivers/input/joystick/warrior.c | 2 +- 16 files changed, 40 insertions(+), 30 deletions(-) diff --git a/drivers/input/joystick/a3d.c b/drivers/input/joystick/a3d.c index 4612d13ea75..b11a4bbc84c 100644 --- a/drivers/input/joystick/a3d.c +++ b/drivers/input/joystick/a3d.c @@ -306,7 +306,7 @@ static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv) gameport_set_poll_handler(gameport, a3d_poll); gameport_set_poll_interval(gameport, 20); - sprintf(a3d->phys, "%s/input0", gameport->phys); + snprintf(a3d->phys, sizeof(a3d->phys), "%s/input0", gameport->phys); input_dev->name = a3d_names[a3d->mode]; input_dev->phys = a3d->phys; diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c index 3121961e3e7..01dc0b195d5 100644 --- a/drivers/input/joystick/analog.c +++ b/drivers/input/joystick/analog.c @@ -408,21 +408,23 @@ static void analog_calibrate_timer(struct analog_port *port) static void analog_name(struct analog *analog) { - sprintf(analog->name, "Analog %d-axis %d-button", - hweight8(analog->mask & ANALOG_AXES_STD), - hweight8(analog->mask & ANALOG_BTNS_STD) + !!(analog->mask & ANALOG_BTNS_CHF) * 2 + - hweight16(analog->mask & ANALOG_BTNS_GAMEPAD) + !!(analog->mask & ANALOG_HBTN_CHF) * 4); + snprintf(analog->name, sizeof(analog->name), "Analog %d-axis %d-button", + hweight8(analog->mask & ANALOG_AXES_STD), + hweight8(analog->mask & ANALOG_BTNS_STD) + !!(analog->mask & ANALOG_BTNS_CHF) * 2 + + hweight16(analog->mask & ANALOG_BTNS_GAMEPAD) + !!(analog->mask & ANALOG_HBTN_CHF) * 4); if (analog->mask & ANALOG_HATS_ALL) - sprintf(analog->name, "%s %d-hat", - analog->name, hweight16(analog->mask & ANALOG_HATS_ALL)); + snprintf(analog->name, sizeof(analog->name), "%s %d-hat", + analog->name, hweight16(analog->mask & ANALOG_HATS_ALL)); if (analog->mask & ANALOG_HAT_FCS) - strcat(analog->name, " FCS"); + strlcat(analog->name, " FCS", sizeof(analog->name)); if (analog->mask & ANALOG_ANY_CHF) - strcat(analog->name, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF"); + strlcat(analog->name, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF", + sizeof(analog->name)); - strcat(analog->name, (analog->mask & ANALOG_GAMEPAD) ? " gamepad": " joystick"); + strlcat(analog->name, (analog->mask & ANALOG_GAMEPAD) ? " gamepad": " joystick", + sizeof(analog->name)); } /* @@ -435,7 +437,8 @@ static int analog_init_device(struct analog_port *port, struct analog *analog, i int i, j, t, v, w, x, y, z; analog_name(analog); - sprintf(analog->phys, "%s/input%d", port->gameport->phys, index); + snprintf(analog->phys, sizeof(analog->phys), + "%s/input%d", port->gameport->phys, index); analog->buttons = (analog->mask & ANALOG_GAMEPAD) ? analog_pad_btn : analog_joy_btn; analog->dev = input_dev = input_allocate_device(); diff --git a/drivers/input/joystick/cobra.c b/drivers/input/joystick/cobra.c index 1909f7ef340..d5e42eb88a2 100644 --- a/drivers/input/joystick/cobra.c +++ b/drivers/input/joystick/cobra.c @@ -202,7 +202,8 @@ static int cobra_connect(struct gameport *gameport, struct gameport_driver *drv) goto fail3; } - sprintf(cobra->phys[i], "%s/input%d", gameport->phys, i); + snprintf(cobra->phys[i], sizeof(cobra->phys[i]), + "%s/input%d", gameport->phys, i); input_dev->name = "Creative Labs Blaster GamePad Cobra"; input_dev->phys = cobra->phys[i]; diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c index e61894685cb..6f31f054d1b 100644 --- a/drivers/input/joystick/db9.c +++ b/drivers/input/joystick/db9.c @@ -620,7 +620,8 @@ static struct db9 __init *db9_probe(int parport, int mode) goto err_unreg_devs; } - sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i); + snprintf(db9->phys[i], sizeof(db9->phys[i]), + "%s/input%d", db9->pd->port->name, i); input_dev->name = db9_mode->name; input_dev->phys = db9->phys[i]; diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c index ecbdb6b9bbd..fe12aa37393 100644 --- a/drivers/input/joystick/gamecon.c +++ b/drivers/input/joystick/gamecon.c @@ -761,7 +761,8 @@ static struct gc __init *gc_probe(int parport, int *pads, int n_pads) if (!pads[i]) continue; - sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i); + snprintf(gc->phys[i], sizeof(gc->phys[i]), + "%s/input%d", gc->pd->port->name, i); err = gc_setup_pad(gc, i, pads[i]); if (err) goto err_unreg_devs; diff --git a/drivers/input/joystick/gf2k.c b/drivers/input/joystick/gf2k.c index 8a3ad455eb3..e4a699f6ec8 100644 --- a/drivers/input/joystick/gf2k.c +++ b/drivers/input/joystick/gf2k.c @@ -298,7 +298,7 @@ static int gf2k_connect(struct gameport *gameport, struct gameport_driver *drv) gameport_set_poll_handler(gameport, gf2k_poll); gameport_set_poll_interval(gameport, 20); - sprintf(gf2k->phys, "%s/input0", gameport->phys); + snprintf(gf2k->phys, sizeof(gf2k->phys), "%s/input0", gameport->phys); gf2k->length = gf2k_lens[gf2k->id]; diff --git a/drivers/input/joystick/grip.c b/drivers/input/joystick/grip.c index 20cb98ac2d7..17a90c436de 100644 --- a/drivers/input/joystick/grip.c +++ b/drivers/input/joystick/grip.c @@ -354,7 +354,8 @@ static int grip_connect(struct gameport *gameport, struct gameport_driver *drv) goto fail3; } - sprintf(grip->phys[i], "%s/input%d", gameport->phys, i); + snprintf(grip->phys[i], sizeof(grip->phys[i]), + "%s/input%d", gameport->phys, i); input_dev->name = grip_name[grip->mode[i]]; input_dev->phys = grip->phys[i]; diff --git a/drivers/input/joystick/guillemot.c b/drivers/input/joystick/guillemot.c index 6e2c721c26b..840ed9b512b 100644 --- a/drivers/input/joystick/guillemot.c +++ b/drivers/input/joystick/guillemot.c @@ -222,7 +222,7 @@ static int guillemot_connect(struct gameport *gameport, struct gameport_driver * gameport_set_poll_handler(gameport, guillemot_poll); gameport_set_poll_interval(gameport, 20); - sprintf(guillemot->phys, "%s/input0", gameport->phys); + snprintf(guillemot->phys, sizeof(guillemot->phys), "%s/input0", gameport->phys); guillemot->type = guillemot_type + i; input_dev->name = guillemot_type[i].name; diff --git a/drivers/input/joystick/interact.c b/drivers/input/joystick/interact.c index c4ed0175822..bbfeb9c59b8 100644 --- a/drivers/input/joystick/interact.c +++ b/drivers/input/joystick/interact.c @@ -251,7 +251,7 @@ static int interact_connect(struct gameport *gameport, struct gameport_driver *d gameport_set_poll_handler(gameport, interact_poll); gameport_set_poll_interval(gameport, 20); - sprintf(interact->phys, "%s/input0", gameport->phys); + snprintf(interact->phys, sizeof(interact->phys), "%s/input0", gameport->phys); interact->type = i; interact->length = interact_type[i].length; diff --git a/drivers/input/joystick/magellan.c b/drivers/input/joystick/magellan.c index ca3cc2319d6..168b1061a03 100644 --- a/drivers/input/joystick/magellan.c +++ b/drivers/input/joystick/magellan.c @@ -162,7 +162,7 @@ static int magellan_connect(struct serio *serio, struct serio_driver *drv) goto fail; magellan->dev = input_dev; - sprintf(magellan->phys, "%s/input0", serio->phys); + snprintf(magellan->phys, sizeof(magellan->phys), "%s/input0", serio->phys); input_dev->name = "LogiCad3D Magellan / SpaceMouse"; input_dev->phys = magellan->phys; diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c index 95c0de7964a..e58b22c018e 100644 --- a/drivers/input/joystick/sidewinder.c +++ b/drivers/input/joystick/sidewinder.c @@ -541,7 +541,7 @@ static void sw_print_packet(char *name, int length, unsigned char *buf, char bit * Unfortunately I don't know how to do this for the other SW types. */ -static void sw_3dp_id(unsigned char *buf, char *comment) +static void sw_3dp_id(unsigned char *buf, char *comment, size_t size) { int i; char pnp[8], rev[9]; @@ -554,7 +554,7 @@ static void sw_3dp_id(unsigned char *buf, char *comment) pnp[7] = rev[8] = 0; - sprintf(comment, " [PnP %d.%02d id %s rev %s]", + snprintf(comment, size, " [PnP %d.%02d id %s rev %s]", (int) ((sw_get_bits(buf, 8, 6, 1) << 6) | /* Two 6-bit values */ sw_get_bits(buf, 16, 6, 1)) / 100, (int) ((sw_get_bits(buf, 8, 6, 1) << 6) | @@ -695,7 +695,7 @@ static int sw_connect(struct gameport *gameport, struct gameport_driver *drv) sw->type = SW_ID_FFP; sprintf(comment, " [AC %s]", sw_get_bits(idbuf,38,1,3) ? "off" : "on"); } else - sw->type = SW_ID_PP; + sw->type = SW_ID_PP; break; case 66: sw->bits = 3; @@ -703,7 +703,8 @@ static int sw_connect(struct gameport *gameport, struct gameport_driver *drv) sw->length = 22; case 64: sw->type = SW_ID_3DP; - if (j == 160) sw_3dp_id(idbuf, comment); + if (j == 160) + sw_3dp_id(idbuf, comment, sizeof(comment)); break; } } @@ -733,8 +734,10 @@ static int sw_connect(struct gameport *gameport, struct gameport_driver *drv) for (i = 0; i < sw->number; i++) { int bits, code; - sprintf(sw->name, "Microsoft SideWinder %s", sw_name[sw->type]); - sprintf(sw->phys[i], "%s/input%d", gameport->phys, i); + snprintf(sw->name, sizeof(sw->name), + "Microsoft SideWinder %s", sw_name[sw->type]); + snprintf(sw->phys[i], sizeof(sw->phys[i]), + "%s/input%d", gameport->phys, i); sw->dev[i] = input_dev = input_allocate_device(); if (!input_dev) { diff --git a/drivers/input/joystick/spaceball.c b/drivers/input/joystick/spaceball.c index d6f8db8ec3f..75eb5ca5999 100644 --- a/drivers/input/joystick/spaceball.c +++ b/drivers/input/joystick/spaceball.c @@ -220,7 +220,7 @@ static int spaceball_connect(struct serio *serio, struct serio_driver *drv) goto fail; spaceball->dev = input_dev; - sprintf(spaceball->phys, "%s/input0", serio->phys); + snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys); input_dev->name = spaceball_names[id]; input_dev->phys = spaceball->phys; diff --git a/drivers/input/joystick/spaceorb.c b/drivers/input/joystick/spaceorb.c index 7c123a01c58..3e2782e7983 100644 --- a/drivers/input/joystick/spaceorb.c +++ b/drivers/input/joystick/spaceorb.c @@ -177,7 +177,7 @@ static int spaceorb_connect(struct serio *serio, struct serio_driver *drv) goto fail; spaceorb->dev = input_dev; - sprintf(spaceorb->phys, "%s/input0", serio->phys); + snprintf(spaceorb->phys, sizeof(spaceorb->phys), "%s/input0", serio->phys); input_dev->name = "SpaceTec SpaceOrb 360 / Avenger"; input_dev->phys = spaceorb->phys; diff --git a/drivers/input/joystick/stinger.c b/drivers/input/joystick/stinger.c index 0a9ed1d3063..011ec4858e1 100644 --- a/drivers/input/joystick/stinger.c +++ b/drivers/input/joystick/stinger.c @@ -148,7 +148,7 @@ static int stinger_connect(struct serio *serio, struct serio_driver *drv) goto fail; stinger->dev = input_dev; - sprintf(stinger->phys, "%s/serio0", serio->phys); + snprintf(stinger->phys, sizeof(stinger->phys), "%s/serio0", serio->phys); input_dev->name = "Gravis Stinger"; input_dev->phys = stinger->phys; diff --git a/drivers/input/joystick/twidjoy.c b/drivers/input/joystick/twidjoy.c index 7f8b0093c5b..076f237d965 100644 --- a/drivers/input/joystick/twidjoy.c +++ b/drivers/input/joystick/twidjoy.c @@ -199,7 +199,7 @@ static int twidjoy_connect(struct serio *serio, struct serio_driver *drv) goto fail; twidjoy->dev = input_dev; - sprintf(twidjoy->phys, "%s/input0", serio->phys); + snprintf(twidjoy->phys, sizeof(twidjoy->phys), "%s/input0", serio->phys); input_dev->name = "Handykey Twiddler"; input_dev->phys = twidjoy->phys; diff --git a/drivers/input/joystick/warrior.c b/drivers/input/joystick/warrior.c index 1849b176cf1..f9c1a03214e 100644 --- a/drivers/input/joystick/warrior.c +++ b/drivers/input/joystick/warrior.c @@ -154,7 +154,7 @@ static int warrior_connect(struct serio *serio, struct serio_driver *drv) goto fail; warrior->dev = input_dev; - sprintf(warrior->phys, "%s/input0", serio->phys); + snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys); input_dev->name = "Logitech WingMan Warrior"; input_dev->phys = warrior->phys; -- cgit v1.2.3 From a21466cc77b25dc2afd1292c79c7fc8fd454a1a7 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:46:04 -0400 Subject: Input: fix potential overflows in driver/input/touchscreen Change all sprintfs into snprintfs to make sure we won't stomp on data adjacent to our buffers. Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/gunze.c | 2 +- drivers/input/touchscreen/h3600_ts_input.c | 2 +- drivers/input/touchscreen/mtouch.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c index 466da190cee..b769b21973b 100644 --- a/drivers/input/touchscreen/gunze.c +++ b/drivers/input/touchscreen/gunze.c @@ -129,7 +129,7 @@ static int gunze_connect(struct serio *serio, struct serio_driver *drv) gunze->serio = serio; gunze->dev = input_dev; - sprintf(gunze->phys, "%s/input0", serio->phys); + snprintf(gunze->phys, sizeof(serio->phys), "%s/input0", serio->phys); input_dev->private = gunze; input_dev->name = "Gunze AHL-51S TouchScreen"; diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c index a595d386312..2de2139f2fe 100644 --- a/drivers/input/touchscreen/h3600_ts_input.c +++ b/drivers/input/touchscreen/h3600_ts_input.c @@ -363,7 +363,7 @@ static int h3600ts_connect(struct serio *serio, struct serio_driver *drv) ts->serio = serio; ts->dev = input_dev; - sprintf(ts->phys, "%s/input0", serio->phys); + snprintf(ts->phys, sizeof(ts->phys), "%s/input0", serio->phys); input_dev->name = "H3600 TouchScreen"; input_dev->phys = ts->phys; diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c index 1d0d37eeef6..8647a905df8 100644 --- a/drivers/input/touchscreen/mtouch.c +++ b/drivers/input/touchscreen/mtouch.c @@ -143,7 +143,7 @@ static int mtouch_connect(struct serio *serio, struct serio_driver *drv) mtouch->serio = serio; mtouch->dev = input_dev; - sprintf(mtouch->phys, "%s/input0", serio->phys); + snprintf(mtouch->phys, sizeof(mtouch->phys), "%s/input0", serio->phys); input_dev->private = mtouch; input_dev->name = "MicroTouch Serial TouchScreen"; -- cgit v1.2.3 From ea08c6faa0a8dc93b016663de55e49822ed0b33f Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:46:17 -0400 Subject: Input: fix potential overflows in driver/input/keyboard Change all sprintfs into snprintfs to make sure we won't stomp on data adjacent to our buffers. Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/atkbd.c | 11 +++++++---- drivers/input/keyboard/lkkbd.c | 9 ++++++--- drivers/input/keyboard/newtonkbd.c | 2 +- drivers/input/keyboard/sunkbd.c | 2 +- drivers/input/keyboard/xtkbd.c | 2 +- 5 files changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index fad04b66d26..0eb955ddc65 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -776,12 +776,15 @@ static void atkbd_set_device_attrs(struct atkbd *atkbd) int i; if (atkbd->extra) - sprintf(atkbd->name, "AT Set 2 Extra keyboard"); + snprintf(atkbd->name, sizeof(atkbd->name), + "AT Set 2 Extra keyboard"); else - sprintf(atkbd->name, "AT %s Set %d keyboard", - atkbd->translated ? "Translated" : "Raw", atkbd->set); + snprintf(atkbd->name, sizeof(atkbd->name), + "AT %s Set %d keyboard", + atkbd->translated ? "Translated" : "Raw", atkbd->set); - sprintf(atkbd->phys, "%s/input0", atkbd->ps2dev.serio->phys); + snprintf(atkbd->phys, sizeof(atkbd->phys), + "%s/input0", atkbd->ps2dev.serio->phys); input_dev->name = atkbd->name; input_dev->phys = atkbd->phys; diff --git a/drivers/input/keyboard/lkkbd.c b/drivers/input/keyboard/lkkbd.c index 77c4d9669ad..5174224cadb 100644 --- a/drivers/input/keyboard/lkkbd.c +++ b/drivers/input/keyboard/lkkbd.c @@ -384,18 +384,21 @@ lkkbd_detection_done (struct lkkbd *lk) */ switch (lk->id[4]) { case 1: - sprintf (lk->name, "DEC LK201 keyboard"); + strlcpy (lk->name, "DEC LK201 keyboard", + sizeof (lk->name)); if (lk201_compose_is_alt) lk->keycode[0xb1] = KEY_LEFTALT; break; case 2: - sprintf (lk->name, "DEC LK401 keyboard"); + strlcpy (lk->name, "DEC LK401 keyboard", + sizeof (lk->name)); break; default: - sprintf (lk->name, "Unknown DEC keyboard"); + strlcpy (lk->name, "Unknown DEC keyboard", + sizeof (lk->name)); printk (KERN_ERR "lkkbd: keyboard on %s is unknown, " "please report to Jan-Benedict Glaw " "\n", lk->phys); diff --git a/drivers/input/keyboard/newtonkbd.c b/drivers/input/keyboard/newtonkbd.c index d10983c521e..40a3f551247 100644 --- a/drivers/input/keyboard/newtonkbd.c +++ b/drivers/input/keyboard/newtonkbd.c @@ -96,7 +96,7 @@ static int nkbd_connect(struct serio *serio, struct serio_driver *drv) nkbd->serio = serio; nkbd->dev = input_dev; - sprintf(nkbd->phys, "%s/input0", serio->phys); + snprintf(nkbd->phys, sizeof(nkbd->phys), "%s/input0", serio->phys); memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode)); input_dev->name = "Newton Keyboard"; diff --git a/drivers/input/keyboard/sunkbd.c b/drivers/input/keyboard/sunkbd.c index b15b6d8d4f8..9dbd7b85686 100644 --- a/drivers/input/keyboard/sunkbd.c +++ b/drivers/input/keyboard/sunkbd.c @@ -263,7 +263,7 @@ static int sunkbd_connect(struct serio *serio, struct serio_driver *drv) goto fail; } - sprintf(sunkbd->name, "Sun Type %d keyboard", sunkbd->type); + snprintf(sunkbd->name, sizeof(sunkbd->name), "Sun Type %d keyboard", sunkbd->type); memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode)); input_dev->name = sunkbd->name; diff --git a/drivers/input/keyboard/xtkbd.c b/drivers/input/keyboard/xtkbd.c index 4135e3e16c5..0821d53cf0c 100644 --- a/drivers/input/keyboard/xtkbd.c +++ b/drivers/input/keyboard/xtkbd.c @@ -100,7 +100,7 @@ static int xtkbd_connect(struct serio *serio, struct serio_driver *drv) xtkbd->serio = serio; xtkbd->dev = input_dev; - sprintf(xtkbd->phys, "%s/input0", serio->phys); + snprintf(xtkbd->phys, sizeof(xtkbd->phys), "%s/input0", serio->phys); memcpy(xtkbd->keycode, xtkbd_keycode, sizeof(xtkbd->keycode)); input_dev->name = "XT Keyboard"; -- cgit v1.2.3 From 62f7caf9273e3596aab1ec399b5c1e02cfb390da Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:47:56 -0400 Subject: Input: change my e-mail address in MAINTAINERS file Signed-off-by: Dmitry Torokhov --- MAINTAINERS | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 4dcd2f1f14d..5e3936897d5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1396,7 +1396,8 @@ S: Supported INPUT (KEYBOARD, MOUSE, JOYSTICK) DRIVERS P: Dmitry Torokhov -M: dtor_core@ameritech.net +M: dmitry.torokhov@gmail.com +M: dtor@mail.ru L: linux-input@atrey.karlin.mff.cuni.cz L: linux-joystick@atrey.karlin.mff.cuni.cz T: git kernel.org:/pub/scm/linux/kernel/git/dtor/input.git -- cgit v1.2.3 From 8a3cf456adbde8317a15fc038cfe82c630512f2e Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 26 Jun 2006 01:48:21 -0400 Subject: Input: return correct size when reading modalias attribute Signed-off-by: Richard Purdie Signed-off-by: Dmitry Torokhov --- drivers/input/input.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/input.c b/drivers/input/input.c index 3038c268917..b149c943484 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -629,7 +629,7 @@ static ssize_t input_dev_show_modalias(struct class_device *dev, char *buf) len = input_print_modalias(buf, PAGE_SIZE, id, 1); - return max_t(int, len, PAGE_SIZE); + return min_t(int, len, PAGE_SIZE); } static CLASS_DEVICE_ATTR(modalias, S_IRUGO, input_dev_show_modalias, NULL); -- cgit v1.2.3 From f60d2b111cd55c335c2b70e50d66a612d2b10856 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:48:36 -0400 Subject: Input: reset name, phys and uniq when unregistering Name, phys and uniq are quite often constant strings in moules implementing particular input device. If a module unregisters input device and then gets unloaded, the device could still be present in memory (pinned via sysfs), but aforementioned members would point to some random memory. Set them all to NULL when unregistering so sysfs handlers won't try dereferencing them. Signed-off-by: Dmitry Torokhov --- drivers/input/input.c | 19 ++++++++++++++++++- include/linux/input.h | 7 +------ 2 files changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/input/input.c b/drivers/input/input.c index b149c943484..d3cdb139e96 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -29,6 +29,7 @@ MODULE_DESCRIPTION("Input core"); MODULE_LICENSE("GPL"); EXPORT_SYMBOL(input_allocate_device); +EXPORT_SYMBOL(input_free_device); EXPORT_SYMBOL(input_register_device); EXPORT_SYMBOL(input_unregister_device); EXPORT_SYMBOL(input_register_handler); @@ -872,6 +873,7 @@ struct input_dev *input_allocate_device(void) dev->dynalloc = 1; dev->cdev.class = &input_class; class_device_initialize(&dev->cdev); + mutex_init(&dev->mutex); INIT_LIST_HEAD(&dev->h_list); INIT_LIST_HEAD(&dev->node); } @@ -879,6 +881,18 @@ struct input_dev *input_allocate_device(void) return dev; } +void input_free_device(struct input_dev *dev) +{ + if (dev) { + + mutex_lock(&dev->mutex); + dev->name = dev->phys = dev->uniq = NULL; + mutex_unlock(&dev->mutex); + + input_put_device(dev); + } +} + int input_register_device(struct input_dev *dev) { static atomic_t input_no = ATOMIC_INIT(0); @@ -895,7 +909,6 @@ int input_register_device(struct input_dev *dev) return -EINVAL; } - mutex_init(&dev->mutex); set_bit(EV_SYN, dev->evbit); /* @@ -979,6 +992,10 @@ void input_unregister_device(struct input_dev *dev) sysfs_remove_group(&dev->cdev.kobj, &input_dev_attr_group); class_device_unregister(&dev->cdev); + mutex_lock(&dev->mutex); + dev->name = dev->phys = dev->uniq = NULL; + mutex_unlock(&dev->mutex); + input_wakeup_procfs_readers(); } diff --git a/include/linux/input.h b/include/linux/input.h index b32c2b6e53f..8d2b874d9e7 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -1005,6 +1005,7 @@ static inline void init_input_dev(struct input_dev *dev) } struct input_dev *input_allocate_device(void); +void input_free_device(struct input_dev *dev); static inline struct input_dev *input_get_device(struct input_dev *dev) { @@ -1016,12 +1017,6 @@ static inline void input_put_device(struct input_dev *dev) class_device_put(&dev->cdev); } -static inline void input_free_device(struct input_dev *dev) -{ - if (dev) - input_put_device(dev); -} - int input_register_device(struct input_dev *); void input_unregister_device(struct input_dev *); -- cgit v1.2.3 From 1e0afb288e56d469ca1c583342bb9782d49333c6 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:48:47 -0400 Subject: Input: fix formatting to better follow CodingStyle Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 10 +++++-- drivers/input/input.c | 37 +++++++++++++++++--------- drivers/input/joydev.c | 69 +++++++++++++++++++++++++++++++----------------- drivers/input/mousedev.c | 42 ++++++++++++++++++----------- drivers/input/tsdev.c | 22 +++++++++------ 5 files changed, 119 insertions(+), 61 deletions(-) diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 5f561fce32d..a29d5ceb00c 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -78,14 +78,19 @@ static int evdev_fasync(int fd, struct file *file, int on) { int retval; struct evdev_list *list = file->private_data; + retval = fasync_helper(fd, file, on, &list->fasync); + return retval < 0 ? retval : 0; } -static int evdev_flush(struct file * file, fl_owner_t id) +static int evdev_flush(struct file *file, fl_owner_t id) { struct evdev_list *list = file->private_data; - if (!list->evdev->exist) return -ENODEV; + + if (!list->evdev->exist) + return -ENODEV; + return input_flush_device(&list->evdev->handle, file); } @@ -300,6 +305,7 @@ static ssize_t evdev_read(struct file * file, char __user * buffer, size_t count static unsigned int evdev_poll(struct file *file, poll_table *wait) { struct evdev_list *list = file->private_data; + poll_wait(file, &list->evdev->wait, wait); return ((list->head == list->tail) ? 0 : (POLLIN | POLLRDNORM)) | (list->evdev->exist ? 0 : (POLLHUP | POLLERR)); diff --git a/drivers/input/input.c b/drivers/input/input.c index d3cdb139e96..7570a3f52f1 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -64,11 +64,13 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in case EV_SYN: switch (code) { case SYN_CONFIG: - if (dev->event) dev->event(dev, type, code, value); + if (dev->event) + dev->event(dev, type, code, value); break; case SYN_REPORT: - if (dev->sync) return; + if (dev->sync) + return; dev->sync = 1; break; } @@ -137,7 +139,8 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in if (code > MSC_MAX || !test_bit(code, dev->mscbit)) return; - if (dev->event) dev->event(dev, type, code, value); + if (dev->event) + dev->event(dev, type, code, value); break; @@ -147,7 +150,9 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in return; change_bit(code, dev->led); - if (dev->event) dev->event(dev, type, code, value); + + if (dev->event) + dev->event(dev, type, code, value); break; @@ -159,21 +164,25 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in if (!!test_bit(code, dev->snd) != !!value) change_bit(code, dev->snd); - if (dev->event) dev->event(dev, type, code, value); + if (dev->event) + dev->event(dev, type, code, value); break; case EV_REP: - if (code > REP_MAX || value < 0 || dev->rep[code] == value) return; + if (code > REP_MAX || value < 0 || dev->rep[code] == value) + return; dev->rep[code] = value; - if (dev->event) dev->event(dev, type, code, value); + if (dev->event) + dev->event(dev, type, code, value); break; case EV_FF: - if (dev->event) dev->event(dev, type, code, value); + if (dev->event) + dev->event(dev, type, code, value); break; } @@ -336,9 +345,11 @@ static inline void input_wakeup_procfs_readers(void) static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait) { int state = input_devices_state; + poll_wait(file, &input_devices_poll_wait, wait); if (state != input_devices_state) return POLLIN | POLLRDNORM; + return 0; } @@ -972,9 +983,10 @@ int input_register_device(struct input_dev *dev) void input_unregister_device(struct input_dev *dev) { - struct list_head * node, * next; + struct list_head *node, *next; - if (!dev) return; + if (!dev) + return; del_timer_sync(&dev->timer); @@ -1005,7 +1017,8 @@ void input_register_handler(struct input_handler *handler) struct input_handle *handle; struct input_device_id *id; - if (!handler) return; + if (!handler) + return; INIT_LIST_HEAD(&handler->h_list); @@ -1025,7 +1038,7 @@ void input_register_handler(struct input_handler *handler) void input_unregister_handler(struct input_handler *handler) { - struct list_head * node, * next; + struct list_head *node, *next; list_for_each_safe(node, next, &handler->h_list) { struct input_handle * handle = to_handle_h(node); diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 949bdcef8c2..d67157513bf 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -81,10 +81,7 @@ static int joydev_correct(int value, struct js_corr *corr) return 0; } - if (value < -32767) return -32767; - if (value > 32767) return 32767; - - return value; + return value < -32767 ? -32767 : (value > 32767 ? 32767 : value); } static void joydev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) @@ -96,7 +93,8 @@ static void joydev_event(struct input_handle *handle, unsigned int type, unsigne switch (type) { case EV_KEY: - if (code < BTN_MISC || value == 2) return; + if (code < BTN_MISC || value == 2) + return; event.type = JS_EVENT_BUTTON; event.number = joydev->keymap[code - BTN_MISC]; event.value = value; @@ -106,7 +104,8 @@ static void joydev_event(struct input_handle *handle, unsigned int type, unsigne event.type = JS_EVENT_AXIS; event.number = joydev->absmap[code]; event.value = joydev_correct(value, joydev->corr + event.number); - if (event.value == joydev->abs[event.number]) return; + if (event.value == joydev->abs[event.number]) + return; joydev->abs[event.number] = event.value; break; @@ -134,7 +133,9 @@ static int joydev_fasync(int fd, struct file *file, int on) { int retval; struct joydev_list *list = file->private_data; + retval = fasync_helper(fd, file, on, &list->fasync); + return retval < 0 ? retval : 0; } @@ -222,12 +223,12 @@ static ssize_t joydev_read(struct file *file, char __user *buf, size_t count, lo return sizeof(struct JS_DATA_TYPE); } - if (list->startup == joydev->nabs + joydev->nkey - && list->head == list->tail && (file->f_flags & O_NONBLOCK)) - return -EAGAIN; + if (list->startup == joydev->nabs + joydev->nkey && + list->head == list->tail && (file->f_flags & O_NONBLOCK)) + return -EAGAIN; retval = wait_event_interruptible(list->joydev->wait, - !list->joydev->exist || + !list->joydev->exist || list->startup < joydev->nabs + joydev->nkey || list->head != list->tail); @@ -276,8 +277,9 @@ static ssize_t joydev_read(struct file *file, char __user *buf, size_t count, lo static unsigned int joydev_poll(struct file *file, poll_table *wait) { struct joydev_list *list = file->private_data; + poll_wait(file, &list->joydev->wait, wait); - return ((list->head != list->tail || list->startup < list->joydev->nabs + list->joydev->nkey) ? + return ((list->head != list->tail || list->startup < list->joydev->nabs + list->joydev->nkey) ? (POLLIN | POLLRDNORM) : 0) | (list->joydev->exist ? 0 : (POLLHUP | POLLERR)); } @@ -291,20 +293,26 @@ static int joydev_ioctl_common(struct joydev *joydev, unsigned int cmd, void __u case JS_SET_CAL: return copy_from_user(&joydev->glue.JS_CORR, argp, sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0; + case JS_GET_CAL: return copy_to_user(argp, &joydev->glue.JS_CORR, sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0; + case JS_SET_TIMEOUT: return get_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp); + case JS_GET_TIMEOUT: return put_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp); case JSIOCGVERSION: return put_user(JS_VERSION, (__u32 __user *) argp); + case JSIOCGAXES: return put_user(joydev->nabs, (__u8 __user *) argp); + case JSIOCGBUTTONS: return put_user(joydev->nkey, (__u8 __user *) argp); + case JSIOCSCORR: if (copy_from_user(joydev->corr, argp, sizeof(joydev->corr[0]) * joydev->nabs)) @@ -314,38 +322,49 @@ static int joydev_ioctl_common(struct joydev *joydev, unsigned int cmd, void __u joydev->abs[i] = joydev_correct(dev->abs[j], joydev->corr + i); } return 0; + case JSIOCGCORR: return copy_to_user(argp, joydev->corr, sizeof(joydev->corr[0]) * joydev->nabs) ? -EFAULT : 0; + case JSIOCSAXMAP: if (copy_from_user(joydev->abspam, argp, sizeof(__u8) * (ABS_MAX + 1))) return -EFAULT; for (i = 0; i < joydev->nabs; i++) { - if (joydev->abspam[i] > ABS_MAX) return -EINVAL; + if (joydev->abspam[i] > ABS_MAX) + return -EINVAL; joydev->absmap[joydev->abspam[i]] = i; } return 0; + case JSIOCGAXMAP: return copy_to_user(argp, joydev->abspam, sizeof(__u8) * (ABS_MAX + 1)) ? -EFAULT : 0; + case JSIOCSBTNMAP: if (copy_from_user(joydev->keypam, argp, sizeof(__u16) * (KEY_MAX - BTN_MISC + 1))) return -EFAULT; for (i = 0; i < joydev->nkey; i++) { - if (joydev->keypam[i] > KEY_MAX || joydev->keypam[i] < BTN_MISC) return -EINVAL; + if (joydev->keypam[i] > KEY_MAX || joydev->keypam[i] < BTN_MISC) + return -EINVAL; joydev->keymap[joydev->keypam[i] - BTN_MISC] = i; } return 0; + case JSIOCGBTNMAP: return copy_to_user(argp, joydev->keypam, sizeof(__u16) * (KEY_MAX - BTN_MISC + 1)) ? -EFAULT : 0; + default: if ((cmd & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT)) == JSIOCGNAME(0)) { int len; - if (!dev->name) return 0; + if (!dev->name) + return 0; len = strlen(dev->name) + 1; - if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); - if (copy_to_user(argp, dev->name, len)) return -EFAULT; + if (len > _IOC_SIZE(cmd)) + len = _IOC_SIZE(cmd); + if (copy_to_user(argp, dev->name, len)) + return -EFAULT; return len; } } @@ -362,7 +381,9 @@ static long joydev_compat_ioctl(struct file *file, unsigned int cmd, unsigned lo struct JS_DATA_SAVE_TYPE_32 ds32; int err; - if (!joydev->exist) return -ENODEV; + if (!joydev->exist) + return -ENODEV; + switch(cmd) { case JS_SET_TIMELIMIT: err = get_user(tmp32, (s32 __user *) arg); @@ -395,8 +416,7 @@ static long joydev_compat_ioctl(struct file *file, unsigned int cmd, unsigned lo ds32.JS_SAVE = joydev->glue.JS_SAVE; ds32.JS_CORR = joydev->glue.JS_CORR; - err = copy_to_user(argp, &ds32, - sizeof(ds32)) ? -EFAULT : 0; + err = copy_to_user(argp, &ds32, sizeof(ds32)) ? -EFAULT : 0; break; default: @@ -412,7 +432,8 @@ static int joydev_ioctl(struct inode *inode, struct file *file, unsigned int cmd struct joydev *joydev = list->joydev; void __user *argp = (void __user *)arg; - if (!joydev->exist) return -ENODEV; + if (!joydev->exist) + return -ENODEV; switch(cmd) { case JS_SET_TIMELIMIT: @@ -546,8 +567,8 @@ static struct input_device_id joydev_blacklist[] = { .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT, .evbit = { BIT(EV_KEY) }, .keybit = { [LONG(BTN_TOUCH)] = BIT(BTN_TOUCH) }, - }, /* Avoid itouchpads, touchscreens and tablets */ - { }, /* Terminating entry */ + }, /* Avoid itouchpads, touchscreens and tablets */ + { } /* Terminating entry */ }; static struct input_device_id joydev_ids[] = { @@ -566,7 +587,7 @@ static struct input_device_id joydev_ids[] = { .evbit = { BIT(EV_ABS) }, .absbit = { BIT(ABS_THROTTLE) }, }, - { }, /* Terminating entry */ + { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(input, joydev_ids); @@ -579,7 +600,7 @@ static struct input_handler joydev_handler = { .minor = JOYDEV_MINOR_BASE, .name = "joydev", .id_table = joydev_ids, - .blacklist = joydev_blacklist, + .blacklist = joydev_blacklist, }; static int __init joydev_init(void) diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index b685a507955..eb721b11ff3 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -123,7 +123,9 @@ static void mousedev_touchpad_event(struct input_dev *dev, struct mousedev *mous if (mousedev->touch) { size = dev->absmax[ABS_X] - dev->absmin[ABS_X]; - if (size == 0) size = 256 * 2; + if (size == 0) + size = 256 * 2; + switch (code) { case ABS_X: fx(0) = value; @@ -155,18 +157,24 @@ static void mousedev_abs_event(struct input_dev *dev, struct mousedev *mousedev, switch (code) { case ABS_X: size = dev->absmax[ABS_X] - dev->absmin[ABS_X]; - if (size == 0) size = xres ? : 1; - if (value > dev->absmax[ABS_X]) value = dev->absmax[ABS_X]; - if (value < dev->absmin[ABS_X]) value = dev->absmin[ABS_X]; + if (size == 0) + size = xres ? : 1; + if (value > dev->absmax[ABS_X]) + value = dev->absmax[ABS_X]; + if (value < dev->absmin[ABS_X]) + value = dev->absmin[ABS_X]; mousedev->packet.x = ((value - dev->absmin[ABS_X]) * xres) / size; mousedev->packet.abs_event = 1; break; case ABS_Y: size = dev->absmax[ABS_Y] - dev->absmin[ABS_Y]; - if (size == 0) size = yres ? : 1; - if (value > dev->absmax[ABS_Y]) value = dev->absmax[ABS_Y]; - if (value < dev->absmin[ABS_Y]) value = dev->absmin[ABS_Y]; + if (size == 0) + size = yres ? : 1; + if (value > dev->absmax[ABS_Y]) + value = dev->absmax[ABS_Y]; + if (value < dev->absmin[ABS_Y]) + value = dev->absmin[ABS_Y]; mousedev->packet.y = yres - ((value - dev->absmin[ABS_Y]) * yres) / size; mousedev->packet.abs_event = 1; break; @@ -202,7 +210,7 @@ static void mousedev_key_event(struct mousedev *mousedev, unsigned int code, int case BTN_SIDE: index = 3; break; case BTN_4: case BTN_EXTRA: index = 4; break; - default: return; + default: return; } if (value) { @@ -285,10 +293,9 @@ static void mousedev_touchpad_touch(struct mousedev *mousedev, int value) mousedev->touch = mousedev->pkt_count = 0; mousedev->frac_dx = 0; mousedev->frac_dy = 0; - } - else - if (!mousedev->touch) - mousedev->touch = jiffies; + + } else if (!mousedev->touch) + mousedev->touch = jiffies; } static void mousedev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) @@ -327,7 +334,7 @@ static void mousedev_event(struct input_handle *handle, unsigned int type, unsig mousedev->pkt_count++; /* Input system eats duplicate events, but we need all of them * to do correct averaging so apply present one forward - */ + */ fx(0) = fx(1); fy(0) = fy(1); } @@ -346,7 +353,9 @@ static int mousedev_fasync(int fd, struct file *file, int on) { int retval; struct mousedev_list *list = file->private_data; + retval = fasync_helper(fd, file, on, &list->fasync); + return retval < 0 ? retval : 0; } @@ -507,14 +516,16 @@ static ssize_t mousedev_write(struct file * file, const char __user * buffer, si list->imexseq = 0; list->mode = MOUSEDEV_EMUL_EXPS; } - } else list->imexseq = 0; + } else + list->imexseq = 0; if (c == mousedev_imps_seq[list->impsseq]) { if (++list->impsseq == MOUSEDEV_SEQ_LEN) { list->impsseq = 0; list->mode = MOUSEDEV_EMUL_IMPS; } - } else list->impsseq = 0; + } else + list->impsseq = 0; list->ps2[0] = 0xfa; @@ -598,6 +609,7 @@ static ssize_t mousedev_read(struct file * file, char __user * buffer, size_t co static unsigned int mousedev_poll(struct file *file, poll_table *wait) { struct mousedev_list *list = file->private_data; + poll_wait(file, &list->mousedev->wait, wait); return ((list->ready || list->buffer) ? (POLLIN | POLLRDNORM) : 0) | (list->mousedev->exist ? 0 : (POLLHUP | POLLERR)); diff --git a/drivers/input/tsdev.c b/drivers/input/tsdev.c index d678d144bbf..5f9ecad2ca7 100644 --- a/drivers/input/tsdev.c +++ b/drivers/input/tsdev.c @@ -35,7 +35,7 @@ * e-mail - mail your message to . */ -#define TSDEV_MINOR_BASE 128 +#define TSDEV_MINOR_BASE 128 #define TSDEV_MINORS 32 /* First 16 devices are h3600_ts compatible; second 16 are h3600_tsraw */ #define TSDEV_MINOR_MASK 15 @@ -230,6 +230,7 @@ static ssize_t tsdev_read(struct file *file, char __user *buffer, size_t count, static unsigned int tsdev_poll(struct file *file, poll_table * wait) { struct tsdev_list *list = file->private_data; + poll_wait(file, &list->tsdev->wait, wait); return ((list->head == list->tail) ? 0 : (POLLIN | POLLRDNORM)) | (list->tsdev->exist ? 0 : (POLLHUP | POLLERR)); @@ -248,11 +249,13 @@ static int tsdev_ioctl(struct inode *inode, struct file *file, sizeof (struct ts_calibration))) retval = -EFAULT; break; + case TS_SET_CAL: if (copy_from_user (&tsdev->cal, (void __user *)arg, sizeof (struct ts_calibration))) retval = -EFAULT; break; + default: retval = -EINVAL; break; @@ -284,9 +287,11 @@ static void tsdev_event(struct input_handle *handle, unsigned int type, case ABS_X: tsdev->x = value; break; + case ABS_Y: tsdev->y = value; break; + case ABS_PRESSURE: if (value > handle->dev->absmax[ABS_PRESSURE]) value = handle->dev->absmax[ABS_PRESSURE]; @@ -307,6 +312,7 @@ static void tsdev_event(struct input_handle *handle, unsigned int type, else if (tsdev->x > xres) tsdev->x = xres; break; + case REL_Y: tsdev->y += value; if (tsdev->y < 0) @@ -323,6 +329,7 @@ static void tsdev_event(struct input_handle *handle, unsigned int type, case 0: tsdev->pressure = 0; break; + case 1: if (!tsdev->pressure) tsdev->pressure = 1; @@ -370,9 +377,8 @@ static struct input_handle *tsdev_connect(struct input_handler *handler, struct class_device *cdev; int minor, delta; - for (minor = 0; minor < TSDEV_MINORS/2 && tsdev_table[minor]; - minor++); - if (minor >= TSDEV_MINORS/2) { + for (minor = 0; minor < TSDEV_MINORS / 2 && tsdev_table[minor]; minor++); + if (minor >= TSDEV_MINORS / 2) { printk(KERN_ERR "tsdev: You have way too many touchscreens\n"); return NULL; @@ -444,22 +450,22 @@ static struct input_device_id tsdev_ids[] = { .evbit = { BIT(EV_KEY) | BIT(EV_REL) }, .keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) }, .relbit = { BIT(REL_X) | BIT(REL_Y) }, - },/* A mouse like device, at least one button, two relative axes */ + }, /* A mouse like device, at least one button, two relative axes */ { .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_ABSBIT, .evbit = { BIT(EV_KEY) | BIT(EV_ABS) }, .keybit = { [LONG(BTN_TOUCH)] = BIT(BTN_TOUCH) }, .absbit = { BIT(ABS_X) | BIT(ABS_Y) }, - },/* A tablet like device, at least touch detection, two absolute axes */ + }, /* A tablet like device, at least touch detection, two absolute axes */ { .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_ABSBIT, .evbit = { BIT(EV_ABS) }, .absbit = { BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) }, - },/* A tablet like device with several gradations of pressure */ + }, /* A tablet like device with several gradations of pressure */ - {},/* Terminating entry */ + {} /* Terminating entry */ }; MODULE_DEVICE_TABLE(input, tsdev_ids); -- cgit v1.2.3 From ca56fe07f46e1c174b544e714be183f1476fecea Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:49:21 -0400 Subject: Input: rearrange exports New style is to mark symbol as exported right after its definition. Signed-off-by: Dmitry Torokhov --- drivers/input/input.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/input/input.c b/drivers/input/input.c index 7570a3f52f1..de2e7546b49 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -28,21 +28,6 @@ MODULE_AUTHOR("Vojtech Pavlik "); MODULE_DESCRIPTION("Input core"); MODULE_LICENSE("GPL"); -EXPORT_SYMBOL(input_allocate_device); -EXPORT_SYMBOL(input_free_device); -EXPORT_SYMBOL(input_register_device); -EXPORT_SYMBOL(input_unregister_device); -EXPORT_SYMBOL(input_register_handler); -EXPORT_SYMBOL(input_unregister_handler); -EXPORT_SYMBOL(input_grab_device); -EXPORT_SYMBOL(input_release_device); -EXPORT_SYMBOL(input_open_device); -EXPORT_SYMBOL(input_close_device); -EXPORT_SYMBOL(input_accept_process); -EXPORT_SYMBOL(input_flush_device); -EXPORT_SYMBOL(input_event); -EXPORT_SYMBOL_GPL(input_class); - #define INPUT_DEVICES 256 static LIST_HEAD(input_dev_list); @@ -196,6 +181,7 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in if (handle->open) handle->handler->event(handle, type, code, value); } +EXPORT_SYMBOL(input_event); static void input_repeat_key(unsigned long data) { @@ -218,6 +204,7 @@ int input_accept_process(struct input_handle *handle, struct file *file) return 0; } +EXPORT_SYMBOL(input_accept_process); int input_grab_device(struct input_handle *handle) { @@ -227,12 +214,14 @@ int input_grab_device(struct input_handle *handle) handle->dev->grab = handle; return 0; } +EXPORT_SYMBOL(input_grab_device); void input_release_device(struct input_handle *handle) { if (handle->dev->grab == handle) handle->dev->grab = NULL; } +EXPORT_SYMBOL(input_release_device); int input_open_device(struct input_handle *handle) { @@ -255,6 +244,7 @@ int input_open_device(struct input_handle *handle) return err; } +EXPORT_SYMBOL(input_open_device); int input_flush_device(struct input_handle* handle, struct file* file) { @@ -263,6 +253,7 @@ int input_flush_device(struct input_handle* handle, struct file* file) return 0; } +EXPORT_SYMBOL(input_flush_device); void input_close_device(struct input_handle *handle) { @@ -278,6 +269,7 @@ void input_close_device(struct input_handle *handle) mutex_unlock(&dev->mutex); } +EXPORT_SYMBOL(input_close_device); static void input_link_handle(struct input_handle *handle) { @@ -874,6 +866,7 @@ struct class input_class = { .release = input_dev_release, .uevent = input_dev_uevent, }; +EXPORT_SYMBOL_GPL(input_class); struct input_dev *input_allocate_device(void) { @@ -891,6 +884,7 @@ struct input_dev *input_allocate_device(void) return dev; } +EXPORT_SYMBOL(input_allocate_device); void input_free_device(struct input_dev *dev) { @@ -903,6 +897,7 @@ void input_free_device(struct input_dev *dev) input_put_device(dev); } } +EXPORT_SYMBOL(input_free_device); int input_register_device(struct input_dev *dev) { @@ -980,6 +975,7 @@ int input_register_device(struct input_dev *dev) fail1: class_device_del(&dev->cdev); return error; } +EXPORT_SYMBOL(input_register_device); void input_unregister_device(struct input_dev *dev) { @@ -1010,6 +1006,7 @@ void input_unregister_device(struct input_dev *dev) input_wakeup_procfs_readers(); } +EXPORT_SYMBOL(input_unregister_device); void input_register_handler(struct input_handler *handler) { @@ -1035,6 +1032,7 @@ void input_register_handler(struct input_handler *handler) input_wakeup_procfs_readers(); } +EXPORT_SYMBOL(input_register_handler); void input_unregister_handler(struct input_handler *handler) { @@ -1054,6 +1052,7 @@ void input_unregister_handler(struct input_handler *handler) input_wakeup_procfs_readers(); } +EXPORT_SYMBOL(input_unregister_handler); static int input_open_file(struct inode *inode, struct file *file) { -- cgit v1.2.3 From 9e8e30a0cc0ccb43773d14d8b8b84bcc585e9cc1 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 26 Jun 2006 01:49:55 -0400 Subject: Input: via-pmu - add input device support Add an input device for the button and lid switch so that userspace gets notified about the user pressing them via the standard input layer. Signed-off-by: Johannes Berg Signed-off-by: Andrew Morton Signed-off-by: Dmitry Torokhov --- drivers/macintosh/Makefile | 2 +- drivers/macintosh/via-pmu-event.c | 80 +++++++++++++++++++++++++++++++++++++++ drivers/macintosh/via-pmu-event.h | 8 ++++ drivers/macintosh/via-pmu.c | 8 ++++ 4 files changed, 97 insertions(+), 1 deletion(-) create mode 100644 drivers/macintosh/via-pmu-event.c create mode 100644 drivers/macintosh/via-pmu-event.h diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile index 8972e53d2dc..45a268f8047 100644 --- a/drivers/macintosh/Makefile +++ b/drivers/macintosh/Makefile @@ -11,7 +11,7 @@ obj-$(CONFIG_MAC_EMUMOUSEBTN) += mac_hid.o obj-$(CONFIG_INPUT_ADBHID) += adbhid.o obj-$(CONFIG_ANSLCD) += ans-lcd.o -obj-$(CONFIG_ADB_PMU) += via-pmu.o +obj-$(CONFIG_ADB_PMU) += via-pmu.o via-pmu-event.o obj-$(CONFIG_PMAC_BACKLIGHT) += via-pmu-backlight.o obj-$(CONFIG_ADB_CUDA) += via-cuda.o obj-$(CONFIG_PMAC_APM_EMU) += apm_emu.o diff --git a/drivers/macintosh/via-pmu-event.c b/drivers/macintosh/via-pmu-event.c new file mode 100644 index 00000000000..25cd5654232 --- /dev/null +++ b/drivers/macintosh/via-pmu-event.c @@ -0,0 +1,80 @@ +/* + * via-pmu event device for reporting some events that come through the PMU + * + * Copyright 2006 Johannes Berg + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#include +#include +#include +#include "via-pmu-event.h" + +static struct input_dev *pmu_input_dev; + +static int __init via_pmu_event_init(void) +{ + int err; + + /* do other models report button/lid status? */ + if (pmu_get_model() != PMU_KEYLARGO_BASED) + return -ENODEV; + + pmu_input_dev = input_allocate_device(); + if (!pmu_input_dev) + return -ENOMEM; + + pmu_input_dev->name = "PMU"; + pmu_input_dev->id.bustype = BUS_HOST; + pmu_input_dev->id.vendor = 0x0001; + pmu_input_dev->id.product = 0x0001; + pmu_input_dev->id.version = 0x0100; + + set_bit(EV_KEY, pmu_input_dev->evbit); + set_bit(EV_SW, pmu_input_dev->evbit); + set_bit(KEY_POWER, pmu_input_dev->keybit); + set_bit(SW_LID, pmu_input_dev->swbit); + + err = input_register_device(pmu_input_dev); + if (err) + input_free_device(pmu_input_dev); + return err; +} + +void via_pmu_event(int key, int down) +{ + + if (unlikely(!pmu_input_dev)) + return; + + switch (key) { + case PMU_EVT_POWER: + input_report_key(pmu_input_dev, KEY_POWER, down); + break; + case PMU_EVT_LID: + input_report_switch(pmu_input_dev, SW_LID, down); + break; + default: + /* no such key handled */ + return; + } + + input_sync(pmu_input_dev); +} + +late_initcall(via_pmu_event_init); diff --git a/drivers/macintosh/via-pmu-event.h b/drivers/macintosh/via-pmu-event.h new file mode 100644 index 00000000000..72c54de408e --- /dev/null +++ b/drivers/macintosh/via-pmu-event.h @@ -0,0 +1,8 @@ +#ifndef __VIA_PMU_EVENT_H +#define __VIA_PMU_EVENT_H + +#define PMU_EVT_POWER 0 +#define PMU_EVT_LID 1 +extern void via_pmu_event(int key, int down); + +#endif /* __VIA_PMU_EVENT_H */ diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index 2a355ae5956..1ab4f16c08b 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -69,6 +69,8 @@ #include #endif +#include "via-pmu-event.h" + /* Some compile options */ #undef SUSPEND_USES_PMU #define DEBUG_SLEEP @@ -1427,6 +1429,12 @@ next: if (pmu_battery_count) query_battery_state(); pmu_pass_intr(data, len); + /* len == 6 is probably a bad check. But how do I + * know what PMU versions send what events here? */ + if (len == 6) { + via_pmu_event(PMU_EVT_POWER, !!(data[1]&8)); + via_pmu_event(PMU_EVT_LID, data[1]&1); + } } else { pmu_pass_intr(data, len); } -- cgit v1.2.3 From b9ab58dd8e771d30df110c56e785db1ae5e073df Mon Sep 17 00:00:00 2001 From: Jerome Pinot Date: Mon, 26 Jun 2006 01:51:23 -0400 Subject: Input: fix misspelling of Hangeul key Fix a mispelling of the korean alphabet name in the input subsystem. See http://en.wikipedia.org/wiki/Hangeul#Names for more details. KEY_HANGUEL left to not break people Signed-off-by: Jerome Pinot Signed-off-by: Dmitry Torokhov --- drivers/char/keyboard.c | 2 +- drivers/input/keyboard/atkbd.c | 8 ++++---- drivers/macintosh/adbhid.c | 2 +- drivers/usb/input/hid-debug.h | 2 +- include/linux/input.h | 3 ++- 5 files changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c index 1b63acfc6c7..d82368bc46d 100644 --- a/drivers/char/keyboard.c +++ b/drivers/char/keyboard.c @@ -1074,7 +1074,7 @@ static int emulate_raw(struct vc_data *vc, unsigned int keycode, put_queue(vc, 0x1d | up_flag); put_queue(vc, 0x45 | up_flag); return 0; - case KEY_HANGUEL: + case KEY_HANGEUL: if (!up_flag) put_queue(vc, 0xf1); return 0; case KEY_HANJA: diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 0eb955ddc65..1bf61f00cbd 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -150,7 +150,7 @@ static unsigned char atkbd_unxlate_table[128] = { #define ATKBD_RET_EMUL0 0xe0 #define ATKBD_RET_EMUL1 0xe1 #define ATKBD_RET_RELEASE 0xf0 -#define ATKBD_RET_HANGUEL 0xf1 +#define ATKBD_RET_HANGEUL 0xf1 #define ATKBD_RET_HANJA 0xf2 #define ATKBD_RET_ERR 0xff @@ -304,7 +304,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, if (atkbd->emul || (code != ATKBD_RET_EMUL0 && code != ATKBD_RET_EMUL1 && - code != ATKBD_RET_HANGUEL && code != ATKBD_RET_HANJA && + code != ATKBD_RET_HANGEUL && code != ATKBD_RET_HANJA && (code != ATKBD_RET_ERR || atkbd->err_xl) && (code != ATKBD_RET_BAT || atkbd->bat_xl))) { atkbd->release = code >> 7; @@ -333,8 +333,8 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, case ATKBD_RET_RELEASE: atkbd->release = 1; goto out; - case ATKBD_RET_HANGUEL: - atkbd_report_key(atkbd->dev, regs, KEY_HANGUEL, 3); + case ATKBD_RET_HANGEUL: + atkbd_report_key(atkbd->dev, regs, KEY_HANGEUL, 3); goto out; case ATKBD_RET_HANJA: atkbd_report_key(atkbd->dev, regs, KEY_HANJA, 3); diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c index c26e1236b27..cbfbbe2b150 100644 --- a/drivers/macintosh/adbhid.c +++ b/drivers/macintosh/adbhid.c @@ -179,7 +179,7 @@ u8 adb_to_linux_keycodes[128] = { /* 0x65 */ KEY_F9, /* 67 */ /* 0x66 */ KEY_HANJA, /* 123 */ /* 0x67 */ KEY_F11, /* 87 */ - /* 0x68 */ KEY_HANGUEL, /* 122 */ + /* 0x68 */ KEY_HANGEUL, /* 122 */ /* 0x69 */ KEY_SYSRQ, /* 99 */ /* 0x6a */ 0, /* 0x6b */ KEY_SCROLLLOCK, /* 70 */ diff --git a/drivers/usb/input/hid-debug.h b/drivers/usb/input/hid-debug.h index 702c48c2f81..f04d6d75c09 100644 --- a/drivers/usb/input/hid-debug.h +++ b/drivers/usb/input/hid-debug.h @@ -563,7 +563,7 @@ static char *keys[KEY_MAX + 1] = { [KEY_VOLUMEUP] = "VolumeUp", [KEY_POWER] = "Power", [KEY_KPEQUAL] = "KPEqual", [KEY_KPPLUSMINUS] = "KPPlusMinus", [KEY_PAUSE] = "Pause", [KEY_KPCOMMA] = "KPComma", - [KEY_HANGUEL] = "Hanguel", [KEY_HANJA] = "Hanja", + [KEY_HANGUEL] = "Hangeul", [KEY_HANJA] = "Hanja", [KEY_YEN] = "Yen", [KEY_LEFTMETA] = "LeftMeta", [KEY_RIGHTMETA] = "RightMeta", [KEY_COMPOSE] = "Compose", [KEY_STOP] = "Stop", [KEY_AGAIN] = "Again", diff --git a/include/linux/input.h b/include/linux/input.h index 8d2b874d9e7..56f1e0e1e59 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -232,7 +232,8 @@ struct input_absinfo { #define KEY_PAUSE 119 #define KEY_KPCOMMA 121 -#define KEY_HANGUEL 122 +#define KEY_HANGEUL 122 +#define KEY_HANGUEL KEY_HANGEUL #define KEY_HANJA 123 #define KEY_YEN 124 #define KEY_LEFTMETA 125 -- cgit v1.2.3 From 0ae051a19092d36112b5ba60ff8b5df7a5d5d23b Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 26 Jun 2006 01:52:34 -0400 Subject: Input: atkbd - fix HANGEUL/HANJA keys Make atkbd report HANGEUL/HANJA keys by default and use correct scan codes for these keys (they were swapped). Also make sure their scancodes reported as EV_MSC/MSC_SCAN events. Signed-off-by: Dmitry Torokhov --- drivers/char/keyboard.c | 6 +- drivers/input/keyboard/atkbd.c | 208 ++++++++++++++++++++++++++--------------- 2 files changed, 135 insertions(+), 79 deletions(-) diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c index d82368bc46d..6cb85dcbbc8 100644 --- a/drivers/char/keyboard.c +++ b/drivers/char/keyboard.c @@ -1075,10 +1075,12 @@ static int emulate_raw(struct vc_data *vc, unsigned int keycode, put_queue(vc, 0x45 | up_flag); return 0; case KEY_HANGEUL: - if (!up_flag) put_queue(vc, 0xf1); + if (!up_flag) + put_queue(vc, 0xf2); return 0; case KEY_HANJA: - if (!up_flag) put_queue(vc, 0xf2); + if (!up_flag) + put_queue(vc, 0xf1); return 0; } diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 1bf61f00cbd..ffde8f86e0f 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -55,7 +55,7 @@ static int atkbd_softraw = 1; module_param_named(softraw, atkbd_softraw, bool, 0); MODULE_PARM_DESC(softraw, "Use software generated rawmode"); -static int atkbd_scroll = 0; +static int atkbd_scroll; module_param_named(scroll, atkbd_scroll, bool, 0); MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards"); @@ -150,8 +150,8 @@ static unsigned char atkbd_unxlate_table[128] = { #define ATKBD_RET_EMUL0 0xe0 #define ATKBD_RET_EMUL1 0xe1 #define ATKBD_RET_RELEASE 0xf0 -#define ATKBD_RET_HANGEUL 0xf1 -#define ATKBD_RET_HANJA 0xf2 +#define ATKBD_RET_HANJA 0xf1 +#define ATKBD_RET_HANGEUL 0xf2 #define ATKBD_RET_ERR 0xff #define ATKBD_KEY_UNKNOWN 0 @@ -170,6 +170,13 @@ static unsigned char atkbd_unxlate_table[128] = { #define ATKBD_LED_EVENT_BIT 0 #define ATKBD_REP_EVENT_BIT 1 +#define ATKBD_XL_ERR 0x01 +#define ATKBD_XL_BAT 0x02 +#define ATKBD_XL_ACK 0x04 +#define ATKBD_XL_NAK 0x08 +#define ATKBD_XL_HANGEUL 0x10 +#define ATKBD_XL_HANJA 0x20 + static struct { unsigned char keycode; unsigned char set2; @@ -211,8 +218,7 @@ struct atkbd { unsigned char emul; unsigned char resend; unsigned char release; - unsigned char bat_xl; - unsigned char err_xl; + unsigned long xl_bit; unsigned int last; unsigned long time; @@ -245,17 +251,65 @@ ATKBD_DEFINE_ATTR(set); ATKBD_DEFINE_ATTR(softrepeat); ATKBD_DEFINE_ATTR(softraw); +static const unsigned int xl_table[] = { + ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, + ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, +}; -static void atkbd_report_key(struct input_dev *dev, struct pt_regs *regs, int code, int value) +/* + * Checks if we should mangle the scancode to extract 'release' bit + * in translated mode. + */ +static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code) { - input_regs(dev, regs); - if (value == 3) { - input_report_key(dev, code, 1); - input_sync(dev); - input_report_key(dev, code, 0); - } else - input_event(dev, EV_KEY, code, value); - input_sync(dev); + int i; + + if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1) + return 0; + + for (i = 0; i < ARRAY_SIZE(xl_table); i++) + if (code == xl_table[i]) + return test_bit(i, &xl_bit); + + return 1; +} + +/* + * Calculates new value of xl_bit so the driver can distinguish + * between make/break pair of scancodes for select keys and PS/2 + * protocol responses. + */ +static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(xl_table); i++) { + if (!((code ^ xl_table[i]) & 0x7f)) { + if (code & 0x80) + __clear_bit(i, &atkbd->xl_bit); + else + __set_bit(i, &atkbd->xl_bit); + break; + } + } +} + +/* + * Encode the scancode, 0xe0 prefix, and high bit into a single integer, + * keeping kernel 2.4 compatibility for set 2 + */ +static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code) +{ + if (atkbd->set == 3) { + if (atkbd->emul == 1) + code |= 0x100; + } else { + code = (code & 0x7f) | ((code & 0x80) << 1); + if (atkbd->emul == 1) + code |= 0x80; + } + + return code; } /* @@ -267,9 +321,11 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs) { struct atkbd *atkbd = serio_get_drvdata(serio); + struct input_dev *dev = atkbd->dev; unsigned int code = data; - int scroll = 0, hscroll = 0, click = -1; + int scroll = 0, hscroll = 0, click = -1, add_release_event = 0; int value; + unsigned char keycode; #ifdef ATKBD_DEBUG printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); @@ -298,25 +354,17 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, if (!atkbd->enabled) goto out; - input_event(atkbd->dev, EV_MSC, MSC_RAW, code); + input_event(dev, EV_MSC, MSC_RAW, code); if (atkbd->translated) { - if (atkbd->emul || - (code != ATKBD_RET_EMUL0 && code != ATKBD_RET_EMUL1 && - code != ATKBD_RET_HANGEUL && code != ATKBD_RET_HANJA && - (code != ATKBD_RET_ERR || atkbd->err_xl) && - (code != ATKBD_RET_BAT || atkbd->bat_xl))) { + if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) { atkbd->release = code >> 7; code &= 0x7f; } - if (!atkbd->emul) { - if ((code & 0x7f) == (ATKBD_RET_BAT & 0x7f)) - atkbd->bat_xl = !(data >> 7); - if ((code & 0x7f) == (ATKBD_RET_ERR & 0x7f)) - atkbd->err_xl = !(data >> 7); - } + if (!atkbd->emul) + atkbd_calculate_xl_bit(atkbd, data); } switch (code) { @@ -333,47 +381,48 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, case ATKBD_RET_RELEASE: atkbd->release = 1; goto out; - case ATKBD_RET_HANGEUL: - atkbd_report_key(atkbd->dev, regs, KEY_HANGEUL, 3); + case ATKBD_RET_ACK: + case ATKBD_RET_NAK: + printk(KERN_WARNING "atkbd.c: Spurious %s on %s. " + "Some program might be trying access hardware directly.\n", + data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); goto out; + case ATKBD_RET_HANGEUL: case ATKBD_RET_HANJA: - atkbd_report_key(atkbd->dev, regs, KEY_HANJA, 3); - goto out; + /* + * These keys do not report release and thus need to be + * flagged properly + */ + add_release_event = 1; + break; case ATKBD_RET_ERR: printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); goto out; } - if (atkbd->set != 3) - code = (code & 0x7f) | ((code & 0x80) << 1); - if (atkbd->emul) { - if (--atkbd->emul) - goto out; - code |= (atkbd->set != 3) ? 0x80 : 0x100; - } + code = atkbd_compat_scancode(atkbd, code); + + if (atkbd->emul && --atkbd->emul) + goto out; + + keycode = atkbd->keycode[code]; - if (atkbd->keycode[code] != ATKBD_KEY_NULL) - input_event(atkbd->dev, EV_MSC, MSC_SCAN, code); + if (keycode != ATKBD_KEY_NULL) + input_event(dev, EV_MSC, MSC_SCAN, code); - switch (atkbd->keycode[code]) { + switch (keycode) { case ATKBD_KEY_NULL: break; case ATKBD_KEY_UNKNOWN: - if (data == ATKBD_RET_ACK || data == ATKBD_RET_NAK) { - printk(KERN_WARNING "atkbd.c: Spurious %s on %s. Some program, " - "like XFree86, might be trying access hardware directly.\n", - data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); - } else { - printk(KERN_WARNING "atkbd.c: Unknown key %s " - "(%s set %d, code %#x on %s).\n", - atkbd->release ? "released" : "pressed", - atkbd->translated ? "translated" : "raw", - atkbd->set, code, serio->phys); - printk(KERN_WARNING "atkbd.c: Use 'setkeycodes %s%02x ' " - "to make it known.\n", - code & 0x80 ? "e0" : "", code & 0x7f); - } - input_sync(atkbd->dev); + printk(KERN_WARNING + "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n", + atkbd->release ? "released" : "pressed", + atkbd->translated ? "translated" : "raw", + atkbd->set, code, serio->phys); + printk(KERN_WARNING + "atkbd.c: Use 'setkeycodes %s%02x ' to make it known.\n", + code & 0x80 ? "e0" : "", code & 0x7f); + input_sync(dev); break; case ATKBD_SCR_1: scroll = 1 - atkbd->release * 2; @@ -397,33 +446,35 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, hscroll = 1; break; default: - value = atkbd->release ? 0 : - (1 + (!atkbd->softrepeat && test_bit(atkbd->keycode[code], atkbd->dev->key))); - - switch (value) { /* Workaround Toshiba laptop multiple keypress */ - case 0: - atkbd->last = 0; - break; - case 1: - atkbd->last = code; - atkbd->time = jiffies + msecs_to_jiffies(atkbd->dev->rep[REP_DELAY]) / 2; - break; - case 2: - if (!time_after(jiffies, atkbd->time) && atkbd->last == code) - value = 1; - break; + if (atkbd->release) { + value = 0; + atkbd->last = 0; + } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) { + /* Workaround Toshiba laptop multiple keypress */ + value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2; + } else { + value = 1; + atkbd->last = code; + atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2; } - atkbd_report_key(atkbd->dev, regs, atkbd->keycode[code], value); + input_regs(dev, regs); + input_report_key(dev, keycode, value); + input_sync(dev); + + if (value && add_release_event) { + input_report_key(dev, keycode, 0); + input_sync(dev); + } } if (atkbd->scroll) { - input_regs(atkbd->dev, regs); + input_regs(dev, regs); if (click != -1) - input_report_key(atkbd->dev, BTN_MIDDLE, click); - input_report_rel(atkbd->dev, REL_WHEEL, scroll); - input_report_rel(atkbd->dev, REL_HWHEEL, hscroll); - input_sync(atkbd->dev); + input_report_key(dev, BTN_MIDDLE, click); + input_report_rel(dev, REL_WHEEL, scroll); + input_report_rel(dev, REL_HWHEEL, hscroll); + input_sync(dev); } atkbd->release = 0; @@ -764,6 +815,9 @@ static void atkbd_set_keycode_table(struct atkbd *atkbd) for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode; } + + atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL)] = KEY_HANGUEL; + atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA)] = KEY_HANJA; } /* -- cgit v1.2.3 From b0c9ad8e0ff154f8c4730b8c4383f49b846c97c4 Mon Sep 17 00:00:00 2001 From: Pozsar Balazs Date: Mon, 26 Jun 2006 01:56:08 -0400 Subject: Input: psmouse - add support for Intellimouse 4.0 Add support for the H-Wheel present on Microsoft Intellimouse 4.0 (AKA "tilt mouse") Signed-off-by: Pozsar Balazs Signed-off-by: Vojtech Pavlik Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/psmouse-base.c | 33 ++++++++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 5f21532c24f..8bc9f51ae6c 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -150,9 +150,20 @@ static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_reg */ if (psmouse->type == PSMOUSE_IMEX) { - input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7)); - input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1); - input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1); + switch (packet[3] & 0xC0) { + case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */ + input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31)); + break; + case 0x40: /* horizontal scroll on IntelliMouse Explorer 4.0 */ + input_report_rel(dev, REL_HWHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31)); + break; + case 0x00: + case 0xC0: + input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7)); + input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1); + input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1); + break; + } } /* @@ -466,9 +477,25 @@ static int im_explorer_detect(struct psmouse *psmouse, int set_properties) if (param[0] != 4) return -1; +/* Magic to enable horizontal scrolling on IntelliMouse 4.0 */ + param[0] = 200; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + param[0] = 80; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + param[0] = 40; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + + param[0] = 200; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + param[0] = 200; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + param[0] = 60; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + if (set_properties) { set_bit(BTN_MIDDLE, psmouse->dev->keybit); set_bit(REL_WHEEL, psmouse->dev->relbit); + set_bit(REL_HWHEEL, psmouse->dev->relbit); set_bit(BTN_SIDE, psmouse->dev->keybit); set_bit(BTN_EXTRA, psmouse->dev->keybit); -- cgit v1.2.3 From e2e8115b54aa6f159ac3dfec8d3d23b0af5fbfa0 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Mon, 26 Jun 2006 01:59:52 -0400 Subject: Input: iforce - remove some pointless casts The 'private' member of struct input_dev is a void*, so no need to cast it when assigning it to a struct iforce* variable. Signed-off-by: Jesper Juhl Signed-off-by: Vojtech Pavlik Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/iforce/iforce-main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c index ab0a26b924c..6d99e3c3788 100644 --- a/drivers/input/joystick/iforce/iforce-main.c +++ b/drivers/input/joystick/iforce/iforce-main.c @@ -86,7 +86,7 @@ static struct iforce_device iforce_device[] = { static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) { - struct iforce* iforce = (struct iforce*)(dev->private); + struct iforce* iforce = dev->private; unsigned char data[3]; if (type != EV_FF) @@ -138,7 +138,7 @@ static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned */ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect) { - struct iforce* iforce = (struct iforce*)(dev->private); + struct iforce* iforce = dev->private; int id; int ret; int is_update; @@ -218,7 +218,7 @@ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect) */ static int iforce_erase_effect(struct input_dev *dev, int effect_id) { - struct iforce* iforce = (struct iforce*)(dev->private); + struct iforce* iforce = dev->private; int err = 0; struct iforce_core_effect* core_effect; -- cgit v1.2.3 From 29f7ac7ecc853037cd7273f1fa35b1d996f8234a Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 24 Jun 2006 23:27:00 -0700 Subject: [MTD] sun_uflash: Port to new EBUS device layer. Signed-off-by: David S. Miller --- drivers/mtd/maps/sun_uflash.c | 195 ++++++++++++++++++++---------------------- 1 file changed, 95 insertions(+), 100 deletions(-) diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 0758cb1d010..24a03152d19 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -30,146 +31,140 @@ #define UFLASH_WINDOW_SIZE 0x200000 #define UFLASH_BUSWIDTH 1 /* EBus is 8-bit */ -MODULE_AUTHOR - ("Eric Brower "); -MODULE_DESCRIPTION - ("User-programmable flash device on Sun Microsystems boardsets"); -MODULE_SUPPORTED_DEVICE - ("userflash"); -MODULE_LICENSE - ("GPL"); +MODULE_AUTHOR("Eric Brower "); +MODULE_DESCRIPTION("User-programmable flash device on Sun Microsystems boardsets"); +MODULE_SUPPORTED_DEVICE("userflash"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("2.0"); static LIST_HEAD(device_list); struct uflash_dev { - char * name; /* device name */ + char *name; /* device name */ struct map_info map; /* mtd map info */ - struct mtd_info * mtd; /* mtd info */ - struct list_head list; + struct mtd_info *mtd; /* mtd info */ }; struct map_info uflash_map_templ = { - .name = "SUNW,???-????", - .size = UFLASH_WINDOW_SIZE, - .bankwidth = UFLASH_BUSWIDTH, + .name = "SUNW,???-????", + .size = UFLASH_WINDOW_SIZE, + .bankwidth = UFLASH_BUSWIDTH, }; -int uflash_devinit(struct linux_ebus_device* edev) +int uflash_devinit(struct linux_ebus_device *edev, struct device_node *dp) { - int iTmp, nregs; - struct linux_prom_registers regs[2]; - struct uflash_dev *pdev; - - iTmp = prom_getproperty( - edev->prom_node, "reg", (void *)regs, sizeof(regs)); - if ((iTmp % sizeof(regs[0])) != 0) { - printk("%s: Strange reg property size %d\n", - UFLASH_DEVNAME, iTmp); - return -ENODEV; - } + struct uflash_dev *up; + struct resource *res; - nregs = iTmp / sizeof(regs[0]); + res = &edev->resource[0]; - if (nregs != 1) { + if (edev->num_addrs != 1) { /* Non-CFI userflash device-- once I find one we * can work on supporting it. */ printk("%s: unsupported device at 0x%lx (%d regs): " \ "email ebrower@usa.net\n", - UFLASH_DEVNAME, edev->resource[0].start, nregs); + dp->full_name, res->start, edev->num_addrs); + return -ENODEV; } - if(0 == (pdev = kmalloc(sizeof(struct uflash_dev), GFP_KERNEL))) { - printk("%s: unable to kmalloc new device\n", UFLASH_DEVNAME); - return(-ENOMEM); - } + up = kzalloc(sizeof(struct uflash_dev), GFP_KERNEL); + if (!up) + return -ENOMEM; /* copy defaults and tweak parameters */ - memcpy(&pdev->map, &uflash_map_templ, sizeof(uflash_map_templ)); - pdev->map.size = regs[0].reg_size; - - iTmp = prom_getproplen(edev->prom_node, "model"); - pdev->name = kmalloc(iTmp, GFP_KERNEL); - prom_getstring(edev->prom_node, "model", pdev->name, iTmp); - if(0 != pdev->name && 0 < strlen(pdev->name)) { - pdev->map.name = pdev->name; - } - pdev->map.phys = edev->resource[0].start; - pdev->map.virt = ioremap_nocache(edev->resource[0].start, pdev->map.size); - if(0 == pdev->map.virt) { - printk("%s: failed to map device\n", __FUNCTION__); - kfree(pdev->name); - kfree(pdev); - return(-1); + memcpy(&up->map, &uflash_map_templ, sizeof(uflash_map_templ)); + up->map.size = (res->end - res->start) + 1UL; + + up->name = of_get_property(dp, "model", NULL); + if (up->name && 0 < strlen(up->name)) + up->map.name = up->name; + + up->map.phys = res->start; + + up->map.virt = ioremap_nocache(res->start, up->map.size); + if (!up->map.virt) { + printk("%s: Failed to map device.\n", dp->full_name); + kfree(up); + + return -EINVAL; } - simple_map_init(&pdev->map); + simple_map_init(&up->map); /* MTD registration */ - pdev->mtd = do_map_probe("cfi_probe", &pdev->map); - if(0 == pdev->mtd) { - iounmap(pdev->map.virt); - kfree(pdev->name); - kfree(pdev); - return(-ENXIO); + up->mtd = do_map_probe("cfi_probe", &up->map); + if (!up->mtd) { + iounmap(up->map.virt); + kfree(up); + + return -ENXIO; } - list_add(&pdev->list, &device_list); + up->mtd->owner = THIS_MODULE; - pdev->mtd->owner = THIS_MODULE; + add_mtd_device(up->mtd); - add_mtd_device(pdev->mtd); - return(0); + dev_set_drvdata(&edev->ofdev.dev, up); + + return 0; } -static int __init uflash_init(void) +static int __devinit uflash_probe(struct of_device *dev, const struct of_device_id *match) { - struct linux_ebus *ebus = NULL; - struct linux_ebus_device *edev = NULL; - - for_each_ebus(ebus) { - for_each_ebusdev(edev, ebus) { - if (!strcmp(edev->prom_name, UFLASH_OBPNAME)) { - if(0 > prom_getproplen(edev->prom_node, "user")) { - DEBUG(2, "%s: ignoring device at 0x%lx\n", - UFLASH_DEVNAME, edev->resource[0].start); - } else { - uflash_devinit(edev); - } - } - } - } + struct linux_ebus_device *edev = to_ebus_device(&dev->dev); + struct device_node *dp = dev->node; - if(list_empty(&device_list)) { - printk("%s: unable to locate device\n", UFLASH_DEVNAME); + if (of_find_property(dp, "user", NULL)) return -ENODEV; - } - return(0); + + return uflash_devinit(edev, dp); } -static void __exit uflash_cleanup(void) +static int __devexit uflash_remove(struct of_device *dev) { - struct list_head *udevlist; - struct uflash_dev *udev; - - list_for_each(udevlist, &device_list) { - udev = list_entry(udevlist, struct uflash_dev, list); - DEBUG(2, "%s: removing device %s\n", - UFLASH_DEVNAME, udev->name); - - if(0 != udev->mtd) { - del_mtd_device(udev->mtd); - map_destroy(udev->mtd); - } - if(0 != udev->map.virt) { - iounmap(udev->map.virt); - udev->map.virt = NULL; - } - kfree(udev->name); - kfree(udev); + struct uflash_dev *up = dev_get_drvdata(&dev->dev); + + if (up->mtd) { + del_mtd_device(up->mtd); + map_destroy(up->mtd); } + if (up->map.virt) { + iounmap(up->map.virt); + up->map.virt = NULL; + } + + kfree(up); + + return 0; +} + +static struct of_device_id uflash_match[] = { + { + .name = UFLASH_OBPNAME, + }, + {}, +}; + +MODULE_DEVICE_TABLE(of, uflash_match); + +static struct of_platform_driver uflash_driver = { + .name = UFLASH_DEVNAME, + .match_table = uflash_match, + .probe = uflash_probe, + .remove = __devexit_p(uflash_remove), +}; + +static int __init uflash_init(void) +{ + return of_register_driver(&uflash_driver, &ebus_bus_type); +} + +static void __exit uflash_exit(void) +{ + of_unregister_driver(&uflash_driver); } module_init(uflash_init); -module_exit(uflash_cleanup); +module_exit(uflash_exit); -- cgit v1.2.3 From 09ec431476aa6efca436faf1e1aaadb4fa283972 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 00:04:43 -0700 Subject: [PARPORT] sunbpp: Fix typo. Signed-off-by: David S. Miller --- drivers/parport/parport_sunbpp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c index 69a4bbd4cbe..7c43c5392be 100644 --- a/drivers/parport/parport_sunbpp.c +++ b/drivers/parport/parport_sunbpp.c @@ -389,7 +389,7 @@ static struct of_device_id bpp_match[] = { {}, }; -MODULE_DEVICE_TABLE(of, qec_sbus_match); +MODULE_DEVICE_TABLE(of, bpp_match); static struct of_platform_driver bpp_sbus_driver = { .name = "bpp", -- cgit v1.2.3 From 1715f5ef0db94d12d9131d5afa9134e26f77529f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 00:11:21 -0700 Subject: [CPWATCHDOG]: Fix the build. Signed-off-by: David S. Miller --- drivers/sbus/char/cpwatchdog.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/sbus/char/cpwatchdog.c b/drivers/sbus/char/cpwatchdog.c index 5bf3dd901b6..21737b7e86a 100644 --- a/drivers/sbus/char/cpwatchdog.c +++ b/drivers/sbus/char/cpwatchdog.c @@ -755,7 +755,7 @@ static int __init wd_init(void) for_each_ebus(ebus) { for_each_ebusdev(edev, ebus) { - if (!strcmp(edev->prom_name, WD_OBPNAME)) + if (!strcmp(edev->ofdev.node->name, WD_OBPNAME)) goto ebus_done; } } -- cgit v1.2.3 From 95b0ce9d6d95819e65a7456261a0a5573b65ef1c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 00:17:11 -0700 Subject: [RIOWATCHDOG]: Fix the build. Signed-off-by: David S. Miller --- drivers/sbus/char/riowatchdog.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/sbus/char/riowatchdog.c b/drivers/sbus/char/riowatchdog.c index d1babff6a53..2a9cc820442 100644 --- a/drivers/sbus/char/riowatchdog.c +++ b/drivers/sbus/char/riowatchdog.c @@ -211,7 +211,7 @@ static int __init riowd_bbc_init(void) for_each_ebus(ebus) { for_each_ebusdev(edev, ebus) { - if (!strcmp(edev->prom_name, "bbc")) + if (!strcmp(edev->ofdev.node->name, "bbc")) goto found_bbc; } } @@ -238,7 +238,7 @@ static int __init riowd_init(void) for_each_ebus(ebus) { for_each_ebusdev(edev, ebus) { - if (!strcmp(edev->prom_name, RIOWD_NAME)) + if (!strcmp(edev->ofdev.node->name, RIOWD_NAME)) goto ebus_done; } } -- cgit v1.2.3 From 698539187aee83ea6843e29875dde70b473f8bc1 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 01:21:38 -0700 Subject: [SPARC]: Export x_bus_type to modules. Signed-off-by: David S. Miller --- arch/sparc/kernel/of_device.c | 2 ++ arch/sparc64/kernel/of_device.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c index 001b8673b4b..80a80947878 100644 --- a/arch/sparc/kernel/of_device.c +++ b/arch/sparc/kernel/of_device.c @@ -138,6 +138,7 @@ struct bus_type ebus_bus_type = { .suspend = of_device_suspend, .resume = of_device_resume, }; +EXPORT_SYMBOL(ebus_bus_type); #endif #ifdef CONFIG_SBUS @@ -149,6 +150,7 @@ struct bus_type sbus_bus_type = { .suspend = of_device_suspend, .resume = of_device_resume, }; +EXPORT_SYMBOL(sbus_bus_type); #endif static int __init of_bus_driver_init(void) diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c index 566aa343aa6..768475bbce8 100644 --- a/arch/sparc64/kernel/of_device.c +++ b/arch/sparc64/kernel/of_device.c @@ -138,6 +138,7 @@ struct bus_type isa_bus_type = { .suspend = of_device_suspend, .resume = of_device_resume, }; +EXPORT_SYMBOL(isa_bus_type); struct bus_type ebus_bus_type = { .name = "ebus", @@ -147,6 +148,7 @@ struct bus_type ebus_bus_type = { .suspend = of_device_suspend, .resume = of_device_resume, }; +EXPORT_SYMBOL(ebus_bus_type); #endif #ifdef CONFIG_SBUS @@ -158,6 +160,7 @@ struct bus_type sbus_bus_type = { .suspend = of_device_suspend, .resume = of_device_resume, }; +EXPORT_SYMBOL(sbus_bus_type); #endif static int __init of_bus_driver_init(void) -- cgit v1.2.3 From 350559961593a9680244b22b32733a49e21f25d6 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 01:32:25 -0700 Subject: [SPARC64]: Allow floppy driver to build modular. Signed-off-by: David S. Miller --- arch/sparc64/kernel/irq.c | 61 -------------------------------------------- include/asm-sparc64/floppy.h | 50 +++++++++++++++++++++++++++++++++++- 2 files changed, 49 insertions(+), 62 deletions(-) diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index 31e0fbb0d82..cc89b06d017 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -563,67 +563,6 @@ void handler_irq(int irq, struct pt_regs *regs) irq_exit(); } -#ifdef CONFIG_BLK_DEV_FD -extern irqreturn_t floppy_interrupt(int, void *, struct pt_regs *); - -/* XXX No easy way to include asm/floppy.h XXX */ -extern unsigned char *pdma_vaddr; -extern unsigned long pdma_size; -extern volatile int doing_pdma; -extern unsigned long fdc_status; - -irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie, struct pt_regs *regs) -{ - if (likely(doing_pdma)) { - void __iomem *stat = (void __iomem *) fdc_status; - unsigned char *vaddr = pdma_vaddr; - unsigned long size = pdma_size; - u8 val; - - while (size) { - val = readb(stat); - if (unlikely(!(val & 0x80))) { - pdma_vaddr = vaddr; - pdma_size = size; - return IRQ_HANDLED; - } - if (unlikely(!(val & 0x20))) { - pdma_vaddr = vaddr; - pdma_size = size; - doing_pdma = 0; - goto main_interrupt; - } - if (val & 0x40) { - /* read */ - *vaddr++ = readb(stat + 1); - } else { - unsigned char data = *vaddr++; - - /* write */ - writeb(data, stat + 1); - } - size--; - } - - pdma_vaddr = vaddr; - pdma_size = size; - - /* Send Terminal Count pulse to floppy controller. */ - val = readb(auxio_register); - val |= AUXIO_AUX1_FTCNT; - writeb(val, auxio_register); - val &= ~AUXIO_AUX1_FTCNT; - writeb(val, auxio_register); - - doing_pdma = 0; - } - -main_interrupt: - return floppy_interrupt(irq, dev_cookie, regs); -} -EXPORT_SYMBOL(sparc_floppy_irq); -#endif - struct sun5_timer { u64 count0; u64 limit0; diff --git a/include/asm-sparc64/floppy.h b/include/asm-sparc64/floppy.h index f8d57bb5570..b591d0e8d8f 100644 --- a/include/asm-sparc64/floppy.h +++ b/include/asm-sparc64/floppy.h @@ -208,7 +208,55 @@ static void sun_fd_enable_dma(void) pdma_areasize = pdma_size; } -extern irqreturn_t sparc_floppy_irq(int, void *, struct pt_regs *); +irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie, struct pt_regs *regs) +{ + if (likely(doing_pdma)) { + void __iomem *stat = (void __iomem *) fdc_status; + unsigned char *vaddr = pdma_vaddr; + unsigned long size = pdma_size; + u8 val; + + while (size) { + val = readb(stat); + if (unlikely(!(val & 0x80))) { + pdma_vaddr = vaddr; + pdma_size = size; + return IRQ_HANDLED; + } + if (unlikely(!(val & 0x20))) { + pdma_vaddr = vaddr; + pdma_size = size; + doing_pdma = 0; + goto main_interrupt; + } + if (val & 0x40) { + /* read */ + *vaddr++ = readb(stat + 1); + } else { + unsigned char data = *vaddr++; + + /* write */ + writeb(data, stat + 1); + } + size--; + } + + pdma_vaddr = vaddr; + pdma_size = size; + + /* Send Terminal Count pulse to floppy controller. */ + val = readb(auxio_register); + val |= AUXIO_AUX1_FTCNT; + writeb(val, auxio_register); + val &= ~AUXIO_AUX1_FTCNT; + writeb(val, auxio_register); + + doing_pdma = 0; + } + +main_interrupt: + return floppy_interrupt(irq, dev_cookie, regs); +} static int sun_fd_request_irq(void) { -- cgit v1.2.3 From 987c74fcb7a4479a04c44745098089785c16f5fe Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 01:34:43 -0700 Subject: [SPARC64]: Export _PAGE_IE to modules. Signed-off-by: David S. Miller --- arch/sparc64/mm/init.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 51399341474..5c2bcf354ce 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -1568,6 +1568,7 @@ pgprot_t PAGE_EXEC __read_mostly; unsigned long pg_iobits __read_mostly; unsigned long _PAGE_IE __read_mostly; +EXPORT_SYMBOL(_PAGE_IE); unsigned long _PAGE_E __read_mostly; EXPORT_SYMBOL(_PAGE_E); -- cgit v1.2.3 From 36321426e320c2c6bc2f8a1587d6f4d695fca84c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 02:07:52 -0700 Subject: [SPARC64]: Add missing interfaces to dma-mapping.h Signed-off-by: David S. Miller --- include/asm-sparc64/dma-mapping.h | 43 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/include/asm-sparc64/dma-mapping.h b/include/asm-sparc64/dma-mapping.h index 3c2b5bc8650..0f5b89c9323 100644 --- a/include/asm-sparc64/dma-mapping.h +++ b/include/asm-sparc64/dma-mapping.h @@ -162,4 +162,47 @@ static inline void dma_free_coherent(struct device *dev, size_t size, #endif /* PCI */ + +/* Now for the API extensions over the pci_ one */ + +#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) +#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) +#define dma_is_consistent(d) (1) + +static inline int +dma_get_cache_alignment(void) +{ + /* no easy way to get cache size on all processors, so return + * the maximum possible, to be safe */ + return (1 << INTERNODE_CACHE_SHIFT); +} + +static inline void +dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle, + unsigned long offset, size_t size, + enum dma_data_direction direction) +{ + /* just sync everything, that's all the pci API can do */ + dma_sync_single_for_cpu(dev, dma_handle, offset+size, direction); +} + +static inline void +dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle, + unsigned long offset, size_t size, + enum dma_data_direction direction) +{ + /* just sync everything, that's all the pci API can do */ + dma_sync_single_for_device(dev, dma_handle, offset+size, direction); +} + +static inline void +dma_cache_sync(void *vaddr, size_t size, + enum dma_data_direction direction) +{ + /* could define this in terms of the dma_cache ... operations, + * but if you get this on a platform, you should convert the platform + * to using the generic device DMA API */ + BUG(); +} + #endif /* _ASM_SPARC64_DMA_MAPPING_H */ -- cgit v1.2.3 From dda9beb41414035de230e78cb53416f3e551295a Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 02:08:47 -0700 Subject: [SPARC64]: Export auxio_register to modules. Signed-off-by: David S. Miller --- arch/sparc64/kernel/auxio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/sparc64/kernel/auxio.c b/arch/sparc64/kernel/auxio.c index 2c42894b188..c2c69c167d1 100644 --- a/arch/sparc64/kernel/auxio.c +++ b/arch/sparc64/kernel/auxio.c @@ -6,6 +6,7 @@ */ #include +#include #include #include #include @@ -16,8 +17,8 @@ #include #include -/* This cannot be static, as it is referenced in irq.c */ void __iomem *auxio_register = NULL; +EXPORT_SYMBOL(auxio_register); enum auxio_type { AUXIO_TYPE_NODEV, -- cgit v1.2.3 From fb7cd9d9acfb52dc1b9fbd5079445e4732667bbc Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 23:18:36 -0700 Subject: [SPARC]: Add of_set_property() interface. Signed-off-by: David S. Miller --- arch/sparc/kernel/prom.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++ arch/sparc64/kernel/prom.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++ include/asm-sparc/prom.h | 8 +++++++ include/asm-sparc64/prom.h | 8 +++++++ 4 files changed, 122 insertions(+) diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c index 63b2b9bd778..f3f53f2e0e1 100644 --- a/arch/sparc/kernel/prom.c +++ b/arch/sparc/kernel/prom.c @@ -27,6 +27,11 @@ static struct device_node *allnodes; +/* use when traversing tree through the allnext, child, sibling, + * or parent members of struct device_node. + */ +static DEFINE_RWLOCK(devtree_lock); + int of_device_is_compatible(struct device_node *device, const char *compat) { const char* cp; @@ -185,6 +190,54 @@ int of_getintprop_default(struct device_node *np, const char *name, int def) } EXPORT_SYMBOL(of_getintprop_default); +int of_set_property(struct device_node *dp, const char *name, void *val, int len) +{ + struct property **prevp; + void *new_val; + int err; + + new_val = kmalloc(len, GFP_KERNEL); + if (!new_val) + return -ENOMEM; + + memcpy(new_val, val, len); + + err = -ENODEV; + + write_lock(&devtree_lock); + prevp = &dp->properties; + while (*prevp) { + struct property *prop = *prevp; + + if (!strcmp(prop->name, name)) { + void *old_val = prop->value; + int ret; + + ret = prom_setprop(dp->node, name, val, len); + err = -EINVAL; + if (ret >= 0) { + prop->value = new_val; + prop->length = len; + + if (OF_IS_DYNAMIC(prop)) + kfree(old_val); + + OF_MARK_DYNAMIC(prop); + + err = 0; + } + break; + } + prevp = &(*prevp)->next; + } + write_unlock(&devtree_lock); + + /* XXX Upate procfs if necessary... */ + + return err; +} +EXPORT_SYMBOL(of_set_property); + static unsigned int prom_early_allocated; static void * __init prom_early_alloc(unsigned long size) diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c index e9d703eea80..c62fd3e7a0f 100644 --- a/arch/sparc64/kernel/prom.c +++ b/arch/sparc64/kernel/prom.c @@ -27,6 +27,11 @@ static struct device_node *allnodes; +/* use when traversing tree through the allnext, child, sibling, + * or parent members of struct device_node. + */ +static DEFINE_RWLOCK(devtree_lock); + int of_device_is_compatible(struct device_node *device, const char *compat) { const char* cp; @@ -185,6 +190,54 @@ int of_getintprop_default(struct device_node *np, const char *name, int def) } EXPORT_SYMBOL(of_getintprop_default); +int of_set_property(struct device_node *dp, const char *name, void *val, int len) +{ + struct property **prevp; + void *new_val; + int err; + + new_val = kmalloc(len, GFP_KERNEL); + if (!new_val) + return -ENOMEM; + + memcpy(new_val, val, len); + + err = -ENODEV; + + write_lock(&devtree_lock); + prevp = &dp->properties; + while (*prevp) { + struct property *prop = *prevp; + + if (!strcmp(prop->name, name)) { + void *old_val = prop->value; + int ret; + + ret = prom_setprop(dp->node, name, val, len); + err = -EINVAL; + if (ret >= 0) { + prop->value = new_val; + prop->length = len; + + if (OF_IS_DYNAMIC(prop)) + kfree(old_val); + + OF_MARK_DYNAMIC(prop); + + err = 0; + } + break; + } + prevp = &(*prevp)->next; + } + write_unlock(&devtree_lock); + + /* XXX Upate procfs if necessary... */ + + return err; +} +EXPORT_SYMBOL(of_set_property); + static unsigned int prom_early_allocated; static void * __init prom_early_alloc(unsigned long size) diff --git a/include/asm-sparc/prom.h b/include/asm-sparc/prom.h index c5e3d26eabd..e9b8047470f 100644 --- a/include/asm-sparc/prom.h +++ b/include/asm-sparc/prom.h @@ -35,6 +35,7 @@ struct property { int length; void *value; struct property *next; + unsigned long _flags; }; struct device_node { @@ -60,6 +61,12 @@ struct device_node { void *data; }; +/* flag descriptions */ +#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */ + +#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags) +#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags) + static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de) { dn->pde = de; @@ -88,6 +95,7 @@ extern struct property *of_find_property(struct device_node *np, extern int of_device_is_compatible(struct device_node *device, const char *); extern void *of_get_property(struct device_node *node, const char *name, int *lenp); +extern int of_set_property(struct device_node *node, const char *name, void *val, int len); extern int of_getintprop_default(struct device_node *np, const char *name, int def); diff --git a/include/asm-sparc64/prom.h b/include/asm-sparc64/prom.h index 6d1556c0c26..c8022a33738 100644 --- a/include/asm-sparc64/prom.h +++ b/include/asm-sparc64/prom.h @@ -35,6 +35,7 @@ struct property { int length; void *value; struct property *next; + unsigned long _flags; }; struct device_node { @@ -60,6 +61,12 @@ struct device_node { void *data; }; +/* flag descriptions */ +#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */ + +#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags) +#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags) + static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de) { dn->pde = de; @@ -88,6 +95,7 @@ extern struct property *of_find_property(struct device_node *np, extern int of_device_is_compatible(struct device_node *device, const char *); extern void *of_get_property(struct device_node *node, const char *name, int *lenp); +extern int of_set_property(struct device_node *node, const char *name, void *val, int len); extern int of_getintprop_default(struct device_node *np, const char *name, int def); -- cgit v1.2.3 From 87b385da1f5a5f4a12a28e00fe597bcde8d6fea3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 23:18:57 -0700 Subject: [SPARC]: Add unique device_node IDs and a ".node" property. Signed-off-by: David S. Miller --- arch/sparc/kernel/prom.c | 53 +++++++++++++++++++++++++++++---------------- arch/sparc64/kernel/prom.c | 54 ++++++++++++++++++++++++++++++---------------- include/asm-sparc/prom.h | 2 ++ include/asm-sparc64/prom.h | 2 ++ 4 files changed, 75 insertions(+), 36 deletions(-) diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c index f3f53f2e0e1..946ce6d1581 100644 --- a/arch/sparc/kernel/prom.c +++ b/arch/sparc/kernel/prom.c @@ -407,7 +407,9 @@ static char * __init build_full_name(struct device_node *dp) return n; } -static struct property * __init build_one_prop(phandle node, char *prev) +static unsigned int unique_id; + +static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len) { static struct property *tmp = NULL; struct property *p; @@ -417,25 +419,34 @@ static struct property * __init build_one_prop(phandle node, char *prev) p = tmp; memset(p, 0, sizeof(*p) + 32); tmp = NULL; - } else + } else { p = prom_early_alloc(sizeof(struct property) + 32); + p->unique_id = unique_id++; + } p->name = (char *) (p + 1); - if (prev == NULL) { - prom_firstprop(node, p->name); + if (special_name) { + p->length = special_len; + p->value = prom_early_alloc(special_len); + memcpy(p->value, special_val, special_len); } else { - prom_nextprop(node, prev, p->name); - } - if (strlen(p->name) == 0) { - tmp = p; - return NULL; - } - p->length = prom_getproplen(node, p->name); - if (p->length <= 0) { - p->length = 0; - } else { - p->value = prom_early_alloc(p->length); - len = prom_getproperty(node, p->name, p->value, p->length); + if (prev == NULL) { + prom_firstprop(node, p->name); + } else { + prom_nextprop(node, prev, p->name); + } + if (strlen(p->name) == 0) { + tmp = p; + return NULL; + } + p->length = prom_getproplen(node, p->name); + if (p->length <= 0) { + p->length = 0; + } else { + p->value = prom_early_alloc(p->length + 1); + prom_getproperty(node, p->name, p->value, p->length); + ((unsigned char *)p->value)[p->length] = '\0'; + } } return p; } @@ -444,9 +455,14 @@ static struct property * __init build_prop_list(phandle node) { struct property *head, *tail; - head = tail = build_one_prop(node, NULL); + head = tail = build_one_prop(node, NULL, + ".node", &node, sizeof(node)); + + tail->next = build_one_prop(node, NULL, NULL, NULL, 0); + tail = tail->next; while(tail) { - tail->next = build_one_prop(node, tail->name); + tail->next = build_one_prop(node, tail->name, + NULL, NULL, 0); tail = tail->next; } @@ -475,6 +491,7 @@ static struct device_node * __init create_node(phandle node) return NULL; dp = prom_early_alloc(sizeof(*dp)); + dp->unique_id = unique_id++; kref_init(&dp->kref); diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c index c62fd3e7a0f..8e87e7ea032 100644 --- a/arch/sparc64/kernel/prom.c +++ b/arch/sparc64/kernel/prom.c @@ -584,7 +584,9 @@ static char * __init build_full_name(struct device_node *dp) return n; } -static struct property * __init build_one_prop(phandle node, char *prev) +static unsigned int unique_id; + +static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len) { static struct property *tmp = NULL; struct property *p; @@ -593,25 +595,35 @@ static struct property * __init build_one_prop(phandle node, char *prev) p = tmp; memset(p, 0, sizeof(*p) + 32); tmp = NULL; - } else + } else { p = prom_early_alloc(sizeof(struct property) + 32); + p->unique_id = unique_id++; + } p->name = (char *) (p + 1); - if (prev == NULL) { - prom_firstprop(node, p->name); + if (special_name) { + strcpy(p->name, special_name); + p->length = special_len; + p->value = prom_early_alloc(special_len); + memcpy(p->value, special_val, special_len); } else { - prom_nextprop(node, prev, p->name); - } - if (strlen(p->name) == 0) { - tmp = p; - return NULL; - } - p->length = prom_getproplen(node, p->name); - if (p->length <= 0) { - p->length = 0; - } else { - p->value = prom_early_alloc(p->length); - prom_getproperty(node, p->name, p->value, p->length); + if (prev == NULL) { + prom_firstprop(node, p->name); + } else { + prom_nextprop(node, prev, p->name); + } + if (strlen(p->name) == 0) { + tmp = p; + return NULL; + } + p->length = prom_getproplen(node, p->name); + if (p->length <= 0) { + p->length = 0; + } else { + p->value = prom_early_alloc(p->length + 1); + prom_getproperty(node, p->name, p->value, p->length); + ((unsigned char *)p->value)[p->length] = '\0'; + } } return p; } @@ -620,9 +632,14 @@ static struct property * __init build_prop_list(phandle node) { struct property *head, *tail; - head = tail = build_one_prop(node, NULL); + head = tail = build_one_prop(node, NULL, + ".node", &node, sizeof(node)); + + tail->next = build_one_prop(node, NULL, NULL, NULL, 0); + tail = tail->next; while(tail) { - tail->next = build_one_prop(node, tail->name); + tail->next = build_one_prop(node, tail->name, + NULL, NULL, 0); tail = tail->next; } @@ -651,6 +668,7 @@ static struct device_node * __init create_node(phandle node) return NULL; dp = prom_early_alloc(sizeof(*dp)); + dp->unique_id = unique_id++; kref_init(&dp->kref); diff --git a/include/asm-sparc/prom.h b/include/asm-sparc/prom.h index e9b8047470f..f9cf44c0716 100644 --- a/include/asm-sparc/prom.h +++ b/include/asm-sparc/prom.h @@ -36,6 +36,7 @@ struct property { void *value; struct property *next; unsigned long _flags; + unsigned int unique_id; }; struct device_node { @@ -59,6 +60,7 @@ struct device_node { struct kref kref; unsigned long _flags; void *data; + unsigned int unique_id; }; /* flag descriptions */ diff --git a/include/asm-sparc64/prom.h b/include/asm-sparc64/prom.h index c8022a33738..265614d497c 100644 --- a/include/asm-sparc64/prom.h +++ b/include/asm-sparc64/prom.h @@ -36,6 +36,7 @@ struct property { void *value; struct property *next; unsigned long _flags; + unsigned int unique_id; }; struct device_node { @@ -59,6 +60,7 @@ struct device_node { struct kref kref; unsigned long _flags; void *data; + unsigned int unique_id; }; /* flag descriptions */ -- cgit v1.2.3 From 3d824a46b7210ea3b0a13ab0d0fbd7f6e2e91ddf Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 23:19:14 -0700 Subject: [OPENPROMFS]: Rewrite using in-kernel device tree and seq_file. We lose property writing functionality for the time being, but that will be easy to add back. The code and framework is so much simpler now. Signed-off-by: David S. Miller --- fs/openpromfs/inode.c | 1158 +++++++++++-------------------------------------- 1 file changed, 255 insertions(+), 903 deletions(-) diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c index efc7c91128a..93a56bd4a2b 100644 --- a/fs/openpromfs/inode.c +++ b/fs/openpromfs/inode.c @@ -1,5 +1,4 @@ -/* $Id: inode.c,v 1.15 2001/11/12 09:43:39 davem Exp $ - * openpromfs.c: /proc/openprom handling routines +/* inode.c: /proc/openprom handling routines * * Copyright (C) 1996-1999 Jakub Jelinek (jakub@redhat.com) * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) @@ -12,762 +11,245 @@ #include #include #include -#include +#include #include #include +#include #include -#define ALIASES_NNODES 64 - -typedef struct { - u16 parent; - u16 next; - u16 child; - u16 first_prop; - u32 node; -} openpromfs_node; - -typedef struct { -#define OPP_STRING 0x10 -#define OPP_STRINGLIST 0x20 -#define OPP_BINARY 0x40 -#define OPP_HEXSTRING 0x80 -#define OPP_DIRTY 0x01 -#define OPP_QUOTED 0x02 -#define OPP_NOTQUOTED 0x04 -#define OPP_ASCIIZ 0x08 - u32 flag; - u32 alloclen; - u32 len; - char *value; - char name[8]; -} openprom_property; - -static openpromfs_node *nodes; -static int alloced; -static u16 last_node; -static u16 first_prop; -static u16 options = 0xffff; -static u16 aliases = 0xffff; -static int aliases_nodes; -static char *alias_names [ALIASES_NNODES]; - -#define OPENPROM_ROOT_INO 16 -#define OPENPROM_FIRST_INO OPENPROM_ROOT_INO -#define NODE(ino) nodes[ino - OPENPROM_FIRST_INO] -#define NODE2INO(node) (node + OPENPROM_FIRST_INO) -#define NODEP2INO(no) (no + OPENPROM_FIRST_INO + last_node) - -static int openpromfs_create (struct inode *, struct dentry *, int, struct nameidata *); -static int openpromfs_readdir(struct file *, void *, filldir_t); -static struct dentry *openpromfs_lookup(struct inode *, struct dentry *dentry, struct nameidata *nd); -static int openpromfs_unlink (struct inode *, struct dentry *dentry); +static DEFINE_MUTEX(op_mutex); -static inline u16 ptr_nod(void *p) -{ - return (long)p & 0xFFFF; -} +#define OPENPROM_ROOT_INO 0 -static ssize_t nodenum_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) +enum op_inode_type { + op_inode_node, + op_inode_prop, +}; + +union op_inode_data { + struct device_node *node; + struct property *prop; +}; + +struct op_inode_info { + struct inode vfs_inode; + enum op_inode_type type; + union op_inode_data u; +}; + +static inline struct op_inode_info *OP_I(struct inode *inode) { - struct inode *inode = file->f_dentry->d_inode; - char buffer[10]; - - if (count < 0 || !inode->u.generic_ip) - return -EINVAL; - sprintf (buffer, "%8.8lx\n", (long)inode->u.generic_ip); - if (file->f_pos >= 9) - return 0; - if (count > 9 - file->f_pos) - count = 9 - file->f_pos; - if (copy_to_user(buf, buffer + file->f_pos, count)) - return -EFAULT; - *ppos += count; - return count; + return container_of(inode, struct op_inode_info, vfs_inode); } -static ssize_t property_read(struct file *filp, char __user *buf, - size_t count, loff_t *ppos) +static int is_string(unsigned char *p, int len) { - struct inode *inode = filp->f_dentry->d_inode; - int i, j, k; - u32 node; - char *p, *s; - u32 *q; - openprom_property *op; - char buffer[64]; - - if (!filp->private_data) { - node = nodes[ptr_nod(inode->u.generic_ip)].node; - i = ((u32)(long)inode->u.generic_ip) >> 16; - if (ptr_nod(inode->u.generic_ip) == aliases) { - if (i >= aliases_nodes) - p = NULL; - else - p = alias_names [i]; - } else - for (p = prom_firstprop (node, buffer); - i && p && *p; - p = prom_nextprop (node, p, buffer), i--) - /* nothing */ ; - if (!p || !*p) - return -EIO; - i = prom_getproplen (node, p); - if (i < 0) { - if (ptr_nod(inode->u.generic_ip) == aliases) - i = 0; - else - return -EIO; - } - k = i; - if (i < 64) i = 64; - filp->private_data = kmalloc (sizeof (openprom_property) - + (j = strlen (p)) + 2 * i, - GFP_KERNEL); - if (!filp->private_data) - return -ENOMEM; - op = filp->private_data; - op->flag = 0; - op->alloclen = 2 * i; - strcpy (op->name, p); - op->value = (char *)(((unsigned long)(op->name + j + 4)) & ~3); - op->len = k; - if (k && prom_getproperty (node, p, op->value, i) < 0) - return -EIO; - op->value [k] = 0; - if (k) { - for (s = NULL, p = op->value; p < op->value + k; p++) { - if ((*p >= ' ' && *p <= '~') || *p == '\n') { - op->flag |= OPP_STRING; - s = p; - continue; - } - if (p > op->value && !*p && s == p - 1) { - if (p < op->value + k - 1) - op->flag |= OPP_STRINGLIST; - else - op->flag |= OPP_ASCIIZ; - continue; - } - if (k == 1 && !*p) { - op->flag |= (OPP_STRING|OPP_ASCIIZ); - break; - } - op->flag &= ~(OPP_STRING|OPP_STRINGLIST); - if (k & 3) - op->flag |= OPP_HEXSTRING; - else - op->flag |= OPP_BINARY; - break; - } - if (op->flag & OPP_STRINGLIST) - op->flag &= ~(OPP_STRING); - if (op->flag & OPP_ASCIIZ) - op->len--; - } - } else - op = filp->private_data; - if (!count || !(op->len || (op->flag & OPP_ASCIIZ))) - return 0; - if (*ppos >= 0xffffff || count >= 0xffffff) - return -EINVAL; - if (op->flag & OPP_STRINGLIST) { - for (k = 0, p = op->value; p < op->value + op->len; p++) - if (!*p) - k++; - i = op->len + 4 * k + 3; - } else if (op->flag & OPP_STRING) { - i = op->len + 3; - } else if (op->flag & OPP_BINARY) { - i = (op->len * 9) >> 2; - } else { - i = (op->len << 1) + 1; - } - k = *ppos; - if (k >= i) return 0; - if (count > i - k) count = i - k; - if (op->flag & OPP_STRING) { - if (!k) { - if (put_user('\'', buf)) - return -EFAULT; - k++; - count--; - } + int i; - if (k + count >= i - 2) - j = i - 2 - k; - else - j = count; - - if (j >= 0) { - if (copy_to_user(buf + k - *ppos, - op->value + k - 1, j)) - return -EFAULT; - count -= j; - k += j; - } + for (i = 0; i < len; i++) { + unsigned char val = p[i]; - if (count) { - if (put_user('\'', &buf [k++ - *ppos])) - return -EFAULT; - } - if (count > 1) { - if (put_user('\n', &buf [k++ - *ppos])) - return -EFAULT; - } - } else if (op->flag & OPP_STRINGLIST) { - char *tmp; - - tmp = kmalloc (i, GFP_KERNEL); - if (!tmp) - return -ENOMEM; - - s = tmp; - *s++ = '\''; - for (p = op->value; p < op->value + op->len; p++) { - if (!*p) { - strcpy(s, "' + '"); - s += 5; - continue; - } - *s++ = *p; - } - strcpy(s, "'\n"); - - if (copy_to_user(buf, tmp + k, count)) - return -EFAULT; - - kfree(tmp); - k += count; - - } else if (op->flag & OPP_BINARY) { - char buffer[10]; - u32 *first, *last; - int first_off, last_cnt; - - first = ((u32 *)op->value) + k / 9; - first_off = k % 9; - last = ((u32 *)op->value) + (k + count - 1) / 9; - last_cnt = (k + count) % 9; - if (!last_cnt) last_cnt = 9; - - if (first == last) { - sprintf (buffer, "%08x.", *first); - if (copy_to_user(buf, buffer + first_off, - last_cnt - first_off)) - return -EFAULT; - buf += last_cnt - first_off; - } else { - for (q = first; q <= last; q++) { - sprintf (buffer, "%08x.", *q); - if (q == first) { - if (copy_to_user(buf, buffer + first_off, - 9 - first_off)) - return -EFAULT; - buf += 9 - first_off; - } else if (q == last) { - if (copy_to_user(buf, buffer, last_cnt)) - return -EFAULT; - buf += last_cnt; - } else { - if (copy_to_user(buf, buffer, 9)) - return -EFAULT; - buf += 9; - } - } - } + if ((i && !val) || + (val >= ' ' && val <= '~')) + continue; - if (last == (u32 *)(op->value + op->len - 4) && last_cnt == 9) { - if (put_user('\n', (buf - 1))) - return -EFAULT; - } + return 0; + } - k += count; + return 1; +} - } else if (op->flag & OPP_HEXSTRING) { - char buffer[3]; +static int property_show(struct seq_file *f, void *v) +{ + struct property *prop = f->private; + void *pval; + int len; - if ((k < i - 1) && (k & 1)) { - sprintf (buffer, "%02x", - (unsigned char) *(op->value + (k >> 1)) & 0xff); - if (put_user(buffer[1], &buf[k++ - *ppos])) - return -EFAULT; - count--; - } + len = prop->length; + pval = prop->value; - for (; (count > 1) && (k < i - 1); k += 2) { - sprintf (buffer, "%02x", - (unsigned char) *(op->value + (k >> 1)) & 0xff); - if (copy_to_user(buf + k - *ppos, buffer, 2)) - return -EFAULT; - count -= 2; - } + if (is_string(pval, len)) { + while (len > 0) { + int n = strlen(pval); - if (count && (k < i - 1)) { - sprintf (buffer, "%02x", - (unsigned char) *(op->value + (k >> 1)) & 0xff); - if (put_user(buffer[0], &buf[k++ - *ppos])) - return -EFAULT; - count--; - } + seq_printf(f, "%s", (char *) pval); - if (count) { - if (put_user('\n', &buf [k++ - *ppos])) - return -EFAULT; - } - } - count = k - *ppos; - *ppos = k; - return count; -} + /* Skip over the NULL byte too. */ + pval += n + 1; + len -= n + 1; -static ssize_t property_write(struct file *filp, const char __user *buf, - size_t count, loff_t *ppos) -{ - int i, j, k; - char *p; - u32 *q; - void *b; - openprom_property *op; - - if (*ppos >= 0xffffff || count >= 0xffffff) - return -EINVAL; - if (!filp->private_data) { - i = property_read (filp, NULL, 0, NULL); - if (i) - return i; - } - k = *ppos; - op = filp->private_data; - if (!(op->flag & OPP_STRING)) { - u32 *first, *last; - int first_off, last_cnt; - u32 mask, mask2; - char tmp [9]; - int forcelen = 0; - - j = k % 9; - for (i = 0; i < count; i++, j++) { - if (j == 9) j = 0; - if (!j) { - char ctmp; - if (get_user(ctmp, &buf[i])) - return -EFAULT; - if (ctmp != '.') { - if (ctmp != '\n') { - if (op->flag & OPP_BINARY) - return -EINVAL; - else - goto write_try_string; - } else { - count = i + 1; - forcelen = 1; - break; - } - } - } else { - char ctmp; - if (get_user(ctmp, &buf[i])) - return -EFAULT; - if (ctmp < '0' || - (ctmp > '9' && ctmp < 'A') || - (ctmp > 'F' && ctmp < 'a') || - ctmp > 'f') { - if (op->flag & OPP_BINARY) - return -EINVAL; - else - goto write_try_string; - } - } - } - op->flag |= OPP_BINARY; - tmp [8] = 0; - i = ((count + k + 8) / 9) << 2; - if (op->alloclen <= i) { - b = kmalloc (sizeof (openprom_property) + 2 * i, - GFP_KERNEL); - if (!b) - return -ENOMEM; - memcpy (b, filp->private_data, - sizeof (openprom_property) - + strlen (op->name) + op->alloclen); - memset (b + sizeof (openprom_property) - + strlen (op->name) + op->alloclen, - 0, 2 * i - op->alloclen); - op = b; - op->alloclen = 2*i; - b = filp->private_data; - filp->private_data = op; - kfree (b); + if (len > 0) + seq_printf(f, " + "); } - first = ((u32 *)op->value) + (k / 9); - first_off = k % 9; - last = (u32 *)(op->value + i); - last_cnt = (k + count) % 9; - if (first + 1 == last) { - memset (tmp, '0', 8); - if (copy_from_user(tmp + first_off, buf, - (count + first_off > 8) ? - 8 - first_off : count)) - return -EFAULT; - mask = 0xffffffff; - mask2 = 0xffffffff; - for (j = 0; j < first_off; j++) - mask >>= 1; - for (j = 8 - count - first_off; j > 0; j--) - mask2 <<= 1; - mask &= mask2; - if (mask) { - *first &= ~mask; - *first |= simple_strtoul (tmp, NULL, 16); - op->flag |= OPP_DIRTY; + } else { + if (len & 3) { + while (len) { + len--; + if (len) + seq_printf(f, "%02x.", + *(unsigned char *) pval); + else + seq_printf(f, "%02x", + *(unsigned char *) pval); + pval++; } } else { - op->flag |= OPP_DIRTY; - for (q = first; q < last; q++) { - if (q == first) { - if (first_off < 8) { - memset (tmp, '0', 8); - if (copy_from_user(tmp + first_off, - buf, - 8 - first_off)) - return -EFAULT; - mask = 0xffffffff; - for (j = 0; j < first_off; j++) - mask >>= 1; - *q &= ~mask; - *q |= simple_strtoul (tmp,NULL,16); - } - buf += 9; - } else if ((q == last - 1) && last_cnt - && (last_cnt < 8)) { - memset (tmp, '0', 8); - if (copy_from_user(tmp, buf, last_cnt)) - return -EFAULT; - mask = 0xffffffff; - for (j = 0; j < 8 - last_cnt; j++) - mask <<= 1; - *q &= ~mask; - *q |= simple_strtoul (tmp, NULL, 16); - buf += last_cnt; - } else { - char tchars[2 * sizeof(long) + 1]; - - if (copy_from_user(tchars, buf, sizeof(tchars) - 1)) - return -EFAULT; - tchars[sizeof(tchars) - 1] = '\0'; - *q = simple_strtoul (tchars, NULL, 16); - buf += 9; - } - } - } - if (!forcelen) { - if (op->len < i) - op->len = i; - } else - op->len = i; - *ppos += count; - } -write_try_string: - if (!(op->flag & OPP_BINARY)) { - if (!(op->flag & (OPP_QUOTED | OPP_NOTQUOTED))) { - char ctmp; - - /* No way, if somebody starts writing from the middle, - * we don't know whether he uses quotes around or not - */ - if (k > 0) - return -EINVAL; - if (get_user(ctmp, buf)) - return -EFAULT; - if (ctmp == '\'') { - op->flag |= OPP_QUOTED; - buf++; - count--; - (*ppos)++; - if (!count) { - op->flag |= OPP_STRING; - return 1; - } - } else - op->flag |= OPP_NOTQUOTED; - } - op->flag |= OPP_STRING; - if (op->alloclen <= count + *ppos) { - b = kmalloc (sizeof (openprom_property) - + 2 * (count + *ppos), GFP_KERNEL); - if (!b) - return -ENOMEM; - memcpy (b, filp->private_data, - sizeof (openprom_property) - + strlen (op->name) + op->alloclen); - memset (b + sizeof (openprom_property) - + strlen (op->name) + op->alloclen, - 0, 2*(count - *ppos) - op->alloclen); - op = b; - op->alloclen = 2*(count + *ppos); - b = filp->private_data; - filp->private_data = op; - kfree (b); - } - p = op->value + *ppos - ((op->flag & OPP_QUOTED) ? 1 : 0); - if (copy_from_user(p, buf, count)) - return -EFAULT; - op->flag |= OPP_DIRTY; - for (i = 0; i < count; i++, p++) - if (*p == '\n') { - *p = 0; - break; + while (len >= 4) { + len -= 4; + + if (len) + seq_printf(f, "%08x.", + *(unsigned int *) pval); + else + seq_printf(f, "%08x", + *(unsigned int *) pval); + pval += 4; } - if (i < count) { - op->len = p - op->value; - *ppos += i + 1; - if ((p > op->value) && (op->flag & OPP_QUOTED) - && (*(p - 1) == '\'')) - op->len--; - } else { - if (p - op->value > op->len) - op->len = p - op->value; - *ppos += count; } } - return *ppos - k; + seq_printf(f, "\n"); + + return 0; } -int property_release (struct inode *inode, struct file *filp) +static void *property_start(struct seq_file *f, loff_t *pos) { - openprom_property *op = filp->private_data; - int error; - u32 node; - - if (!op) - return 0; - lock_kernel(); - node = nodes[ptr_nod(inode->u.generic_ip)].node; - if (ptr_nod(inode->u.generic_ip) == aliases) { - if ((op->flag & OPP_DIRTY) && (op->flag & OPP_STRING)) { - char *p = op->name; - int i = (op->value - op->name) - strlen (op->name) - 1; - op->value [op->len] = 0; - *(op->value - 1) = ' '; - if (i) { - for (p = op->value - i - 2; p >= op->name; p--) - p[i] = *p; - p = op->name + i; - } - memcpy (p - 8, "nvalias ", 8); - prom_feval (p - 8); - } - } else if (op->flag & OPP_DIRTY) { - if (op->flag & OPP_STRING) { - op->value [op->len] = 0; - error = prom_setprop (node, op->name, - op->value, op->len + 1); - if (error <= 0) - printk (KERN_WARNING "openpromfs: " - "Couldn't write property %s\n", - op->name); - } else if ((op->flag & OPP_BINARY) || !op->len) { - error = prom_setprop (node, op->name, - op->value, op->len); - if (error <= 0) - printk (KERN_WARNING "openpromfs: " - "Couldn't write property %s\n", - op->name); - } else { - printk (KERN_WARNING "openpromfs: " - "Unknown property type of %s\n", - op->name); - } + if (*pos == 0) + return pos; + return NULL; +} + +static void *property_next(struct seq_file *f, void *v, loff_t *pos) +{ + (*pos)++; + return NULL; +} + +static void property_stop(struct seq_file *f, void *v) +{ + /* Nothing to do */ +} + +static struct seq_operations property_op = { + .start = property_start, + .next = property_next, + .stop = property_stop, + .show = property_show +}; + +static int property_open(struct inode *inode, struct file *file) +{ + struct op_inode_info *oi = OP_I(inode); + int ret; + + BUG_ON(oi->type != op_inode_prop); + + ret = seq_open(file, &property_op); + if (!ret) { + struct seq_file *m = file->private_data; + m->private = oi->u.prop; } - unlock_kernel(); - kfree (filp->private_data); - return 0; + return ret; } static const struct file_operations openpromfs_prop_ops = { - .read = property_read, - .write = property_write, - .release = property_release, + .open = property_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, }; -static const struct file_operations openpromfs_nodenum_ops = { - .read = nodenum_read, -}; +static int openpromfs_readdir(struct file *, void *, filldir_t); static const struct file_operations openprom_operations = { .read = generic_read_dir, .readdir = openpromfs_readdir, }; -static struct inode_operations openprom_alias_inode_operations = { - .create = openpromfs_create, - .lookup = openpromfs_lookup, - .unlink = openpromfs_unlink, -}; +static struct dentry *openpromfs_lookup(struct inode *, struct dentry *, struct nameidata *); static struct inode_operations openprom_inode_operations = { .lookup = openpromfs_lookup, }; -static int lookup_children(u16 n, const char * name, int len) +static struct dentry *openpromfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) { - int ret; - u16 node; - for (; n != 0xffff; n = nodes[n].next) { - node = nodes[n].child; - if (node != 0xffff) { - char buffer[128]; - int i; - char *p; - - while (node != 0xffff) { - if (prom_getname (nodes[node].node, - buffer, 128) >= 0) { - i = strlen (buffer); - if ((len == i) - && !strncmp (buffer, name, len)) - return NODE2INO(node); - p = strchr (buffer, '@'); - if (p && (len == p - buffer) - && !strncmp (buffer, name, len)) - return NODE2INO(node); - } - node = nodes[node].next; - } - } else - continue; - ret = lookup_children (nodes[n].child, name, len); - if (ret) return ret; - } - return 0; -} - -static struct dentry *openpromfs_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd) -{ - int ino = 0; -#define OPFSL_DIR 0 -#define OPFSL_PROPERTY 1 -#define OPFSL_NODENUM 2 - int type = 0; - char buffer[128]; - char *p; + struct op_inode_info *ent_oi, *oi = OP_I(dir); + struct device_node *dp, *child; + struct property *prop; + enum op_inode_type ent_type; + union op_inode_data ent_data; const char *name; - u32 n; - u16 dirnode; - unsigned int len; - int i; struct inode *inode; - char buffer2[64]; + unsigned int ino; + int len; - inode = NULL; + BUG_ON(oi->type != op_inode_node); + + dp = oi->u.node; + name = dentry->d_name.name; len = dentry->d_name.len; - lock_kernel(); - if (name [0] == '.' && len == 5 && !strncmp (name + 1, "node", 4)) { - ino = NODEP2INO(NODE(dir->i_ino).first_prop); - type = OPFSL_NODENUM; - } - if (!ino) { - u16 node = NODE(dir->i_ino).child; - while (node != 0xffff) { - if (prom_getname (nodes[node].node, buffer, 128) >= 0) { - i = strlen (buffer); - if (len == i && !strncmp (buffer, name, len)) { - ino = NODE2INO(node); - type = OPFSL_DIR; - break; - } - p = strchr (buffer, '@'); - if (p && (len == p - buffer) - && !strncmp (buffer, name, len)) { - ino = NODE2INO(node); - type = OPFSL_DIR; - break; - } - } - node = nodes[node].next; - } - } - n = NODE(dir->i_ino).node; - dirnode = dir->i_ino - OPENPROM_FIRST_INO; - if (!ino) { - int j = NODEP2INO(NODE(dir->i_ino).first_prop); - if (dirnode != aliases) { - for (p = prom_firstprop (n, buffer2); - p && *p; - p = prom_nextprop (n, p, buffer2)) { - j++; - if ((len == strlen (p)) - && !strncmp (p, name, len)) { - ino = j; - type = OPFSL_PROPERTY; - break; - } - } - } else { - int k; - for (k = 0; k < aliases_nodes; k++) { - j++; - if (alias_names [k] - && (len == strlen (alias_names [k])) - && !strncmp (alias_names [k], name, len)) { - ino = j; - type = OPFSL_PROPERTY; - break; - } - } + + mutex_lock(&op_mutex); + + child = dp->child; + while (child) { + int n = strlen(child->path_component_name); + + if (len == n && + !strncmp(child->path_component_name, name, len)) { + ent_type = op_inode_node; + ent_data.node = child; + ino = child->unique_id; + goto found; } + child = child->sibling; } - if (!ino) { - ino = lookup_children (NODE(dir->i_ino).child, name, len); - if (ino) - type = OPFSL_DIR; - else { - unlock_kernel(); - return ERR_PTR(-ENOENT); + + prop = dp->properties; + while (prop) { + int n = strlen(prop->name); + + if (len == n && !strncmp(prop->name, name, len)) { + ent_type = op_inode_prop; + ent_data.prop = prop; + ino = prop->unique_id; + goto found; } + + prop = prop->next; } - inode = iget (dir->i_sb, ino); - unlock_kernel(); + + mutex_unlock(&op_mutex); + return ERR_PTR(-ENOENT); + +found: + inode = iget(dir->i_sb, ino); + mutex_unlock(&op_mutex); if (!inode) return ERR_PTR(-EINVAL); - switch (type) { - case OPFSL_DIR: + ent_oi = OP_I(inode); + ent_oi->type = ent_type; + ent_oi->u = ent_data; + + switch (ent_type) { + case op_inode_node: inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO; - if (ino == OPENPROM_FIRST_INO + aliases) { - inode->i_mode |= S_IWUSR; - inode->i_op = &openprom_alias_inode_operations; - } else - inode->i_op = &openprom_inode_operations; + inode->i_op = &openprom_inode_operations; inode->i_fop = &openprom_operations; inode->i_nlink = 2; break; - case OPFSL_NODENUM: - inode->i_mode = S_IFREG | S_IRUGO; - inode->i_fop = &openpromfs_nodenum_ops; - inode->i_nlink = 1; - inode->u.generic_ip = (void *)(long)(n); - break; - case OPFSL_PROPERTY: - if ((dirnode == options) && (len == 17) - && !strncmp (name, "security-password", 17)) + case op_inode_prop: + if (!strcmp(dp->name, "options") && (len == 17) && + !strncmp (name, "security-password", 17)) inode->i_mode = S_IFREG | S_IRUSR | S_IWUSR; - else { + else inode->i_mode = S_IFREG | S_IRUGO; - if (dirnode == options || dirnode == aliases) { - if (len != 4 || strncmp (name, "name", 4)) - inode->i_mode |= S_IWUSR; - } - } inode->i_fop = &openpromfs_prop_ops; inode->i_nlink = 1; - if (inode->i_size < 0) - inode->i_size = 0; - inode->u.generic_ip = (void *)(long)(((u16)dirnode) | - (((u16)(ino - NODEP2INO(NODE(dir->i_ino).first_prop) - 1)) << 16)); + inode->i_size = ent_oi->u.prop->length; break; } @@ -781,237 +263,89 @@ static struct dentry *openpromfs_lookup(struct inode * dir, struct dentry *dentr static int openpromfs_readdir(struct file * filp, void * dirent, filldir_t filldir) { struct inode *inode = filp->f_dentry->d_inode; + struct op_inode_info *oi = OP_I(inode); + struct device_node *dp = oi->u.node; + struct device_node *child; + struct property *prop; unsigned int ino; - u32 n; - int i, j; - char buffer[128]; - u16 node; - char *p; - char buffer2[64]; - - lock_kernel(); + int i; + + mutex_lock(&op_mutex); ino = inode->i_ino; i = filp->f_pos; switch (i) { case 0: - if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0) goto out; + if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0) + goto out; i++; filp->f_pos++; /* fall thru */ case 1: - if (filldir(dirent, "..", 2, i, - (NODE(ino).parent == 0xffff) ? - OPENPROM_ROOT_INO : NODE2INO(NODE(ino).parent), DT_DIR) < 0) + if (filldir(dirent, "..", 2, i, + (dp->parent == NULL ? + OPENPROM_ROOT_INO : + dp->parent->unique_id), DT_DIR) < 0) goto out; i++; filp->f_pos++; /* fall thru */ default: i -= 2; - node = NODE(ino).child; - while (i && node != 0xffff) { - node = nodes[node].next; + + /* First, the children nodes as directories. */ + child = dp->child; + while (i && child) { + child = child->sibling; i--; } - while (node != 0xffff) { - if (prom_getname (nodes[node].node, buffer, 128) < 0) - goto out; - if (filldir(dirent, buffer, strlen(buffer), - filp->f_pos, NODE2INO(node), DT_DIR) < 0) + while (child) { + if (filldir(dirent, + child->path_component_name, + strlen(child->path_component_name), + filp->f_pos, child->unique_id, DT_DIR) < 0) goto out; + filp->f_pos++; - node = nodes[node].next; + child = child->sibling; } - j = NODEP2INO(NODE(ino).first_prop); - if (!i) { - if (filldir(dirent, ".node", 5, filp->f_pos, j, DT_REG) < 0) + + /* Next, the properties as files. */ + prop = dp->properties; + while (i && prop) { + prop = prop->next; + i--; + } + while (prop) { + if (filldir(dirent, prop->name, strlen(prop->name), + filp->f_pos, prop->unique_id, DT_REG) < 0) goto out; + filp->f_pos++; - } else - i--; - n = NODE(ino).node; - if (ino == OPENPROM_FIRST_INO + aliases) { - for (j++; i < aliases_nodes; i++, j++) { - if (alias_names [i]) { - if (filldir (dirent, alias_names [i], - strlen (alias_names [i]), - filp->f_pos, j, DT_REG) < 0) goto out; - filp->f_pos++; - } - } - } else { - for (p = prom_firstprop (n, buffer2); - p && *p; - p = prom_nextprop (n, p, buffer2)) { - j++; - if (i) i--; - else { - if (filldir(dirent, p, strlen(p), - filp->f_pos, j, DT_REG) < 0) - goto out; - filp->f_pos++; - } - } + prop = prop->next; } } out: - unlock_kernel(); - return 0; -} - -static int openpromfs_create (struct inode *dir, struct dentry *dentry, int mode, - struct nameidata *nd) -{ - char *p; - struct inode *inode; - - if (!dir) - return -ENOENT; - if (dentry->d_name.len > 256) - return -EINVAL; - p = kmalloc (dentry->d_name.len + 1, GFP_KERNEL); - if (!p) - return -ENOMEM; - strncpy (p, dentry->d_name.name, dentry->d_name.len); - p [dentry->d_name.len] = 0; - lock_kernel(); - if (aliases_nodes == ALIASES_NNODES) { - kfree(p); - unlock_kernel(); - return -EIO; - } - alias_names [aliases_nodes++] = p; - inode = iget (dir->i_sb, - NODEP2INO(NODE(dir->i_ino).first_prop) + aliases_nodes); - if (!inode) { - unlock_kernel(); - return -EINVAL; - } - inode->i_mode = S_IFREG | S_IRUGO | S_IWUSR; - inode->i_fop = &openpromfs_prop_ops; - inode->i_nlink = 1; - if (inode->i_size < 0) inode->i_size = 0; - inode->u.generic_ip = (void *)(long)(((u16)aliases) | - (((u16)(aliases_nodes - 1)) << 16)); - unlock_kernel(); - d_instantiate(dentry, inode); + mutex_unlock(&op_mutex); return 0; } -static int openpromfs_unlink (struct inode *dir, struct dentry *dentry) -{ - unsigned int len; - char *p; - const char *name; - int i; - - name = dentry->d_name.name; - len = dentry->d_name.len; - lock_kernel(); - for (i = 0; i < aliases_nodes; i++) - if ((strlen (alias_names [i]) == len) - && !strncmp (name, alias_names[i], len)) { - char buffer[512]; - - p = alias_names [i]; - alias_names [i] = NULL; - kfree (p); - strcpy (buffer, "nvunalias "); - memcpy (buffer + 10, name, len); - buffer [10 + len] = 0; - prom_feval (buffer); - } - unlock_kernel(); - return 0; -} +static kmem_cache_t *op_inode_cachep; -/* {{{ init section */ -static int __init check_space (u16 n) +static struct inode *openprom_alloc_inode(struct super_block *sb) { - unsigned long pages; + struct op_inode_info *oi; - if ((1 << alloced) * PAGE_SIZE < (n + 2) * sizeof(openpromfs_node)) { - pages = __get_free_pages (GFP_KERNEL, alloced + 1); - if (!pages) - return -1; + oi = kmem_cache_alloc(op_inode_cachep, SLAB_KERNEL); + if (!oi) + return NULL; - if (nodes) { - memcpy ((char *)pages, nodes, - (1 << alloced) * PAGE_SIZE); - free_pages ((unsigned long)nodes, alloced); - } - alloced++; - nodes = (openpromfs_node *)pages; - } - return 0; + return &oi->vfs_inode; } -static u16 __init get_nodes (u16 parent, u32 node) +static void openprom_destroy_inode(struct inode *inode) { - char *p; - u16 n = last_node++, i; - char buffer[64]; - - if (check_space (n) < 0) - return 0xffff; - nodes[n].parent = parent; - nodes[n].node = node; - nodes[n].next = 0xffff; - nodes[n].child = 0xffff; - nodes[n].first_prop = first_prop++; - if (!parent) { - char buffer[8]; - int j; - - if ((j = prom_getproperty (node, "name", buffer, 8)) >= 0) { - buffer[j] = 0; - if (!strcmp (buffer, "options")) - options = n; - else if (!strcmp (buffer, "aliases")) - aliases = n; - } - } - if (n != aliases) - for (p = prom_firstprop (node, buffer); - p && p != (char *)-1 && *p; - p = prom_nextprop (node, p, buffer)) - first_prop++; - else { - char *q; - for (p = prom_firstprop (node, buffer); - p && p != (char *)-1 && *p; - p = prom_nextprop (node, p, buffer)) { - if (aliases_nodes == ALIASES_NNODES) - break; - for (i = 0; i < aliases_nodes; i++) - if (!strcmp (p, alias_names [i])) - break; - if (i < aliases_nodes) - continue; - q = kmalloc (strlen (p) + 1, GFP_KERNEL); - if (!q) - return 0xffff; - strcpy (q, p); - alias_names [aliases_nodes++] = q; - } - first_prop += ALIASES_NNODES; - } - node = prom_getchild (node); - if (node) { - parent = get_nodes (n, node); - if (parent == 0xffff) - return 0xffff; - nodes[n].child = parent; - while ((node = prom_getsibling (node)) != 0) { - i = get_nodes (n, node); - if (i == 0xffff) - return 0xffff; - nodes[parent].next = i; - parent = i; - } - } - return n; + kmem_cache_free(op_inode_cachep, OP_I(inode)); } static void openprom_read_inode(struct inode * inode) @@ -1031,6 +365,8 @@ static int openprom_remount(struct super_block *sb, int *flags, char *data) } static struct super_operations openprom_sops = { + .alloc_inode = openprom_alloc_inode, + .destroy_inode = openprom_destroy_inode, .read_inode = openprom_read_inode, .statfs = simple_statfs, .remount_fs = openprom_remount, @@ -1038,7 +374,8 @@ static struct super_operations openprom_sops = { static int openprom_fill_super(struct super_block *s, void *data, int silent) { - struct inode * root_inode; + struct inode *root_inode; + struct op_inode_info *oi; s->s_flags |= MS_NOATIME; s->s_blocksize = 1024; @@ -1049,6 +386,11 @@ static int openprom_fill_super(struct super_block *s, void *data, int silent) root_inode = iget(s, OPENPROM_ROOT_INO); if (!root_inode) goto out_no_root; + + oi = OP_I(root_inode); + oi->type = op_inode_node; + oi->u.node = of_find_node_by_path("/"); + s->s_root = d_alloc_root(root_inode); if (!s->s_root) goto out_no_root; @@ -1073,29 +415,39 @@ static struct file_system_type openprom_fs_type = { .kill_sb = kill_anon_super, }; +static void op_inode_init_once(void *data, kmem_cache_t * cachep, unsigned long flags) +{ + struct op_inode_info *oi = (struct op_inode_info *) data; + + if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == + SLAB_CTOR_CONSTRUCTOR) + inode_init_once(&oi->vfs_inode); +} + static int __init init_openprom_fs(void) { - nodes = (openpromfs_node *)__get_free_pages(GFP_KERNEL, 0); - if (!nodes) { - printk (KERN_WARNING "openpromfs: can't get free page\n"); - return -EIO; - } - if (get_nodes (0xffff, prom_root_node) == 0xffff) { - printk (KERN_WARNING "openpromfs: couldn't setup tree\n"); - return -EIO; - } - nodes[last_node].first_prop = first_prop; - return register_filesystem(&openprom_fs_type); + int err; + + op_inode_cachep = kmem_cache_create("op_inode_cache", + sizeof(struct op_inode_info), + 0, + (SLAB_RECLAIM_ACCOUNT | + SLAB_MEM_SPREAD), + op_inode_init_once, NULL); + if (!op_inode_cachep) + return -ENOMEM; + + err = register_filesystem(&openprom_fs_type); + if (err) + kmem_cache_destroy(op_inode_cachep); + + return err; } static void __exit exit_openprom_fs(void) { - int i; unregister_filesystem(&openprom_fs_type); - free_pages ((unsigned long)nodes, alloced); - for (i = 0; i < aliases_nodes; i++) - kfree (alias_names [i]); - nodes = NULL; + kmem_cache_destroy(op_inode_cachep); } module_init(init_openprom_fs) -- cgit v1.2.3 From 8e48aec714f1faf581949f23ae0e3d6e2317433b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 23:19:30 -0700 Subject: [OPENPROM]: Rewrite driver to use in-kernel device tree. Signed-off-by: David S. Miller --- drivers/sbus/char/openprom.c | 593 ++++++++++++++++++++++++------------------- 1 file changed, 336 insertions(+), 257 deletions(-) diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c index cf5b476b549..d7e4bb41bd7 100644 --- a/drivers/sbus/char/openprom.c +++ b/drivers/sbus/char/openprom.c @@ -29,8 +29,6 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#define PROMLIB_INTERNAL - #include #include #include @@ -39,10 +37,10 @@ #include #include #include -#include #include #include #include +#include #include #include #include @@ -51,15 +49,20 @@ #include #endif +MODULE_AUTHOR("Thomas K. Dyas (tdyas@noc.rutgers.edu) and Eddie C. Dost (ecd@skynet.be)"); +MODULE_DESCRIPTION("OPENPROM Configuration Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.0"); + /* Private data kept by the driver for each descriptor. */ typedef struct openprom_private_data { - int current_node; /* Current node for SunOS ioctls. */ - int lastnode; /* Last valid node used by BSD ioctls. */ + struct device_node *current_node; /* Current node for SunOS ioctls. */ + struct device_node *lastnode; /* Last valid node used by BSD ioctls. */ } DATA; /* ID of the PROM node containing all of the EEPROM options. */ -static int options_node = 0; +static struct device_node *options_node; /* * Copy an openpromio structure into kernel space from user space. @@ -87,9 +90,8 @@ static int copyin(struct openpromio __user *info, struct openpromio **opp_p) if (bufsize > OPROMMAXPARAM) bufsize = OPROMMAXPARAM; - if (!(*opp_p = kmalloc(sizeof(int) + bufsize + 1, GFP_KERNEL))) + if (!(*opp_p = kzalloc(sizeof(int) + bufsize + 1, GFP_KERNEL))) return -ENOMEM; - memset(*opp_p, 0, sizeof(int) + bufsize + 1); if (copy_from_user(&(*opp_p)->oprom_array, &info->oprom_array, bufsize)) { @@ -107,10 +109,9 @@ static int getstrings(struct openpromio __user *info, struct openpromio **opp_p) if (!info || !opp_p) return -EFAULT; - if (!(*opp_p = kmalloc(sizeof(int) + OPROMMAXPARAM + 1, GFP_KERNEL))) + if (!(*opp_p = kzalloc(sizeof(int) + OPROMMAXPARAM + 1, GFP_KERNEL))) return -ENOMEM; - memset(*opp_p, 0, sizeof(int) + OPROMMAXPARAM + 1); (*opp_p)->oprom_size = 0; n = bufsize = 0; @@ -140,16 +141,164 @@ static int copyout(void __user *info, struct openpromio *opp, int len) return 0; } +static int opromgetprop(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize) +{ + void *pval; + int len; + + pval = of_get_property(dp, op->oprom_array, &len); + if (!pval || len <= 0 || len > bufsize) + return copyout(argp, op, sizeof(int)); + + memcpy(op->oprom_array, pval, len); + op->oprom_array[len] = '\0'; + op->oprom_size = len; + + return copyout(argp, op, sizeof(int) + bufsize); +} + +static int opromnxtprop(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize) +{ + struct property *prop; + int len; + + if (op->oprom_array[0] == '\0') { + prop = dp->properties; + if (!prop) + return copyout(argp, op, sizeof(int)); + len = strlen(prop->name); + } else { + prop = of_find_property(dp, op->oprom_array, NULL); + + if (!prop || + !prop->next || + (len = strlen(prop->next->name)) + 1 > bufsize) + return copyout(argp, op, sizeof(int)); + + prop = prop->next; + } + + memcpy(op->oprom_array, prop->name, len); + op->oprom_array[len] = '\0'; + op->oprom_size = ++len; + + return copyout(argp, op, sizeof(int) + bufsize); +} + +static int opromsetopt(struct device_node *dp, struct openpromio *op, int bufsize) +{ + char *buf = op->oprom_array + strlen(op->oprom_array) + 1; + int len = op->oprom_array + bufsize - buf; + + return of_set_property(options_node, op->oprom_array, buf, len); +} + +static int opromnext(void __user *argp, unsigned int cmd, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data) +{ + phandle ph; + + BUILD_BUG_ON(sizeof(phandle) != sizeof(int)); + + if (bufsize < sizeof(phandle)) + return -EINVAL; + + ph = *((int *) op->oprom_array); + if (ph) { + dp = of_find_node_by_phandle(ph); + if (!dp) + return -EINVAL; + + switch (cmd) { + case OPROMNEXT: + dp = dp->sibling; + break; + + case OPROMCHILD: + dp = dp->child; + break; + + case OPROMSETCUR: + default: + break; + }; + } else { + /* Sibling of node zero is the root node. */ + if (cmd != OPROMNEXT) + return -EINVAL; + + dp = of_find_node_by_path("/"); + } + + ph = 0; + if (dp) + ph = dp->node; + + data->current_node = dp; + *((int *) op->oprom_array) = ph; + op->oprom_size = sizeof(phandle); + + return copyout(argp, op, bufsize + sizeof(int)); +} + +static int oprompci2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data) +{ + int err = -EINVAL; + + if (bufsize >= 2*sizeof(int)) { +#ifdef CONFIG_PCI + struct pci_dev *pdev; + struct pcidev_cookie *pcp; + pdev = pci_find_slot (((int *) op->oprom_array)[0], + ((int *) op->oprom_array)[1]); + + pcp = pdev->sysdata; + if (pcp != NULL) { + dp = pcp->prom_node; + data->current_node = dp; + *((int *)op->oprom_array) = dp->node; + op->oprom_size = sizeof(int); + err = copyout(argp, op, bufsize + sizeof(int)); + } +#endif + } + + return err; +} + +static int oprompath2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data) +{ + dp = of_find_node_by_path(op->oprom_array); + data->current_node = dp; + *((int *)op->oprom_array) = dp->node; + op->oprom_size = sizeof(int); + + return copyout(argp, op, bufsize + sizeof(int)); +} + +static int opromgetbootargs(void __user *argp, struct openpromio *op, int bufsize) +{ + char *buf = saved_command_line; + int len = strlen(buf); + + if (len > bufsize) + return -EINVAL; + + strcpy(op->oprom_array, buf); + op->oprom_size = len; + + return copyout(argp, op, bufsize + sizeof(int)); +} + /* * SunOS and Solaris /dev/openprom ioctl calls. */ static int openprom_sunos_ioctl(struct inode * inode, struct file * file, - unsigned int cmd, unsigned long arg, int node) + unsigned int cmd, unsigned long arg, + struct device_node *dp) { - DATA *data = (DATA *) file->private_data; - char buffer[OPROMMAXPARAM+1], *buf; + DATA *data = file->private_data; struct openpromio *opp; - int bufsize, len, error = 0; + int bufsize, error = 0; static int cnt; void __user *argp = (void __user *)arg; @@ -164,119 +313,35 @@ static int openprom_sunos_ioctl(struct inode * inode, struct file * file, switch (cmd) { case OPROMGETOPT: case OPROMGETPROP: - len = prom_getproplen(node, opp->oprom_array); - - if (len <= 0 || len > bufsize) { - error = copyout(argp, opp, sizeof(int)); - break; - } - - len = prom_getproperty(node, opp->oprom_array, buffer, bufsize); - - memcpy(opp->oprom_array, buffer, len); - opp->oprom_array[len] = '\0'; - opp->oprom_size = len; - - error = copyout(argp, opp, sizeof(int) + bufsize); + error = opromgetprop(argp, dp, opp, bufsize); break; case OPROMNXTOPT: case OPROMNXTPROP: - buf = prom_nextprop(node, opp->oprom_array, buffer); - - len = strlen(buf); - if (len == 0 || len + 1 > bufsize) { - error = copyout(argp, opp, sizeof(int)); - break; - } - - memcpy(opp->oprom_array, buf, len); - opp->oprom_array[len] = '\0'; - opp->oprom_size = ++len; - - error = copyout(argp, opp, sizeof(int) + bufsize); + error = opromnxtprop(argp, dp, opp, bufsize); break; case OPROMSETOPT: case OPROMSETOPT2: - buf = opp->oprom_array + strlen(opp->oprom_array) + 1; - len = opp->oprom_array + bufsize - buf; - - error = prom_setprop(options_node, opp->oprom_array, - buf, len); - - if (error < 0) - error = -EINVAL; + error = opromsetopt(dp, opp, bufsize); break; case OPROMNEXT: case OPROMCHILD: case OPROMSETCUR: - if (bufsize < sizeof(int)) { - error = -EINVAL; - break; - } - - node = *((int *) opp->oprom_array); - - switch (cmd) { - case OPROMNEXT: node = __prom_getsibling(node); break; - case OPROMCHILD: node = __prom_getchild(node); break; - case OPROMSETCUR: break; - } - - data->current_node = node; - *((int *)opp->oprom_array) = node; - opp->oprom_size = sizeof(int); - - error = copyout(argp, opp, bufsize + sizeof(int)); + error = opromnext(argp, cmd, dp, opp, bufsize, data); break; case OPROMPCI2NODE: - error = -EINVAL; - - if (bufsize >= 2*sizeof(int)) { -#ifdef CONFIG_PCI - struct pci_dev *pdev; - struct pcidev_cookie *pcp; - pdev = pci_find_slot (((int *) opp->oprom_array)[0], - ((int *) opp->oprom_array)[1]); - - pcp = pdev->sysdata; - if (pcp != NULL) { - node = pcp->prom_node->node; - data->current_node = node; - *((int *)opp->oprom_array) = node; - opp->oprom_size = sizeof(int); - error = copyout(argp, opp, bufsize + sizeof(int)); - } -#endif - } + error = oprompci2node(argp, dp, opp, bufsize, data); break; case OPROMPATH2NODE: - node = prom_finddevice(opp->oprom_array); - data->current_node = node; - *((int *)opp->oprom_array) = node; - opp->oprom_size = sizeof(int); - - error = copyout(argp, opp, bufsize + sizeof(int)); + error = oprompath2node(argp, dp, opp, bufsize, data); break; case OPROMGETBOOTARGS: - buf = saved_command_line; - - len = strlen(buf); - - if (len > bufsize) { - error = -EINVAL; - break; - } - - strcpy(opp->oprom_array, buf); - opp->oprom_size = len; - - error = copyout(argp, opp, bufsize + sizeof(int)); + error = opromgetbootargs(argp, opp, bufsize); break; case OPROMU2P: @@ -297,25 +362,14 @@ static int openprom_sunos_ioctl(struct inode * inode, struct file * file, return error; } - -/* Return nonzero if a specific node is in the PROM device tree. */ -static int intree(int root, int node) +static struct device_node *get_node(phandle n, DATA *data) { - for (; root != 0; root = prom_getsibling(root)) - if (root == node || intree(prom_getchild(root),node)) - return 1; - return 0; -} + struct device_node *dp = of_find_node_by_phandle(n); -/* Return nonzero if a specific node is "valid". */ -static int goodnode(int n, DATA *data) -{ - if (n == data->lastnode || n == prom_root_node || n == options_node) - return 1; - if (n == 0 || n == -1 || !intree(prom_root_node,n)) - return 0; - data->lastnode = n; - return 1; + if (dp) + data->lastnode = dp; + + return dp; } /* Copy in a whole string from userspace into kernelspace. */ @@ -330,7 +384,7 @@ static int copyin_string(char __user *user, size_t len, char **ptr) if (!tmp) return -ENOMEM; - if(copy_from_user(tmp, user, len)) { + if (copy_from_user(tmp, user, len)) { kfree(tmp); return -EFAULT; } @@ -345,162 +399,187 @@ static int copyin_string(char __user *user, size_t len, char **ptr) /* * NetBSD /dev/openprom ioctl calls. */ -static int openprom_bsd_ioctl(struct inode * inode, struct file * file, - unsigned int cmd, unsigned long arg) +static int opiocget(void __user *argp, DATA *data) { - DATA *data = (DATA *) file->private_data; - void __user *argp = (void __user *)arg; struct opiocdesc op; - int error, node, len; - char *str, *tmp; - char buffer[64]; - static int cnt; - - switch (cmd) { - case OPIOCGET: - if (copy_from_user(&op, argp, sizeof(op))) - return -EFAULT; - - if (!goodnode(op.op_nodeid,data)) - return -EINVAL; + struct device_node *dp; + char *str; + void *pval; + int err, len; - error = copyin_string(op.op_name, op.op_namelen, &str); - if (error) - return error; + if (copy_from_user(&op, argp, sizeof(op))) + return -EFAULT; - len = prom_getproplen(op.op_nodeid,str); + dp = get_node(op.op_nodeid, data); - if (len > op.op_buflen) { - kfree(str); - return -ENOMEM; - } + err = copyin_string(op.op_name, op.op_namelen, &str); + if (err) + return err; + pval = of_get_property(dp, str, &len); + err = 0; + if (!pval || len > op.op_buflen) { + err = -EINVAL; + } else { op.op_buflen = len; + if (copy_to_user(argp, &op, sizeof(op)) || + copy_to_user(op.op_buf, pval, len)) + err = -EFAULT; + } + kfree(str); - if (len <= 0) { - kfree(str); - /* Verified by the above copy_from_user */ - if (__copy_to_user(argp, &op, - sizeof(op))) - return -EFAULT; - return 0; - } + return err; +} - tmp = kmalloc(len + 1, GFP_KERNEL); - if (!tmp) { - kfree(str); - return -ENOMEM; - } +static int opiocnextprop(void __user *argp, DATA *data) +{ + struct opiocdesc op; + struct device_node *dp; + struct property *prop; + char *str; + int err, len; - cnt = prom_getproperty(op.op_nodeid, str, tmp, len); - if (cnt <= 0) { - error = -EINVAL; - } else { - tmp[len] = '\0'; + if (copy_from_user(&op, argp, sizeof(op))) + return -EFAULT; - if (__copy_to_user(argp, &op, sizeof(op)) != 0 || - copy_to_user(op.op_buf, tmp, len) != 0) - error = -EFAULT; - } + dp = get_node(op.op_nodeid, data); + if (!dp) + return -EINVAL; - kfree(tmp); - kfree(str); + err = copyin_string(op.op_name, op.op_namelen, &str); + if (err) + return err; - return error; + if (str[0] == '\0') { + prop = dp->properties; + } else { + prop = of_find_property(dp, str, NULL); + if (prop) + prop = prop->next; + } + kfree(str); - case OPIOCNEXTPROP: - if (copy_from_user(&op, argp, sizeof(op))) - return -EFAULT; + if (!prop) + len = 0; + else + len = prop->length; - if (!goodnode(op.op_nodeid,data)) - return -EINVAL; + if (len > op.op_buflen) + len = op.op_buflen; - error = copyin_string(op.op_name, op.op_namelen, &str); - if (error) - return error; + if (copy_to_user(argp, &op, sizeof(op))) + return -EFAULT; - tmp = prom_nextprop(op.op_nodeid,str,buffer); + if (len && + copy_to_user(op.op_buf, prop->value, len)) + return -EFAULT; - if (tmp) { - len = strlen(tmp); - if (len > op.op_buflen) - len = op.op_buflen; - else - op.op_buflen = len; - } else { - len = op.op_buflen = 0; - } + return 0; +} - if (!access_ok(VERIFY_WRITE, argp, sizeof(op))) { - kfree(str); - return -EFAULT; - } +static int opiocset(void __user *argp, DATA *data) +{ + struct opiocdesc op; + struct device_node *dp; + char *str, *tmp; + int err; - if (!access_ok(VERIFY_WRITE, op.op_buf, len)) { - kfree(str); - return -EFAULT; - } + if (copy_from_user(&op, argp, sizeof(op))) + return -EFAULT; + + dp = get_node(op.op_nodeid, data); + if (!dp) + return -EINVAL; - error = __copy_to_user(argp, &op, sizeof(op)); - if (!error) error = __copy_to_user(op.op_buf, tmp, len); + err = copyin_string(op.op_name, op.op_namelen, &str); + if (err) + return err; + err = copyin_string(op.op_buf, op.op_buflen, &tmp); + if (err) { kfree(str); + return err; + } - return error; + err = of_set_property(dp, str, tmp, op.op_buflen); - case OPIOCSET: - if (copy_from_user(&op, argp, sizeof(op))) - return -EFAULT; + kfree(str); + kfree(tmp); - if (!goodnode(op.op_nodeid,data)) - return -EINVAL; + return err; +} - error = copyin_string(op.op_name, op.op_namelen, &str); - if (error) - return error; +static int opiocgetnext(unsigned int cmd, void __user *argp) +{ + struct device_node *dp; + phandle nd; - error = copyin_string(op.op_buf, op.op_buflen, &tmp); - if (error) { - kfree(str); - return error; - } + BUILD_BUG_ON(sizeof(phandle) != sizeof(int)); - len = prom_setprop(op.op_nodeid,str,tmp,op.op_buflen+1); + if (copy_from_user(&nd, argp, sizeof(phandle))) + return -EFAULT; - if (len != op.op_buflen) + if (nd == 0) { + if (cmd != OPIOCGETNEXT) return -EINVAL; + dp = of_find_node_by_path("/"); + } else { + dp = of_find_node_by_phandle(nd); + nd = 0; + if (dp) { + if (cmd == OPIOCGETNEXT) + dp = dp->sibling; + else + dp = dp->child; + } + } + if (dp) + nd = dp->node; + if (copy_to_user(argp, &nd, sizeof(phandle))) + return -EFAULT; - kfree(str); - kfree(tmp); + return 0; +} - return 0; +static int openprom_bsd_ioctl(struct inode * inode, struct file * file, + unsigned int cmd, unsigned long arg) +{ + DATA *data = (DATA *) file->private_data; + void __user *argp = (void __user *)arg; + int err; - case OPIOCGETOPTNODE: - if (copy_to_user(argp, &options_node, sizeof(int))) - return -EFAULT; - return 0; + switch (cmd) { + case OPIOCGET: + err = opiocget(argp, data); + break; - case OPIOCGETNEXT: - case OPIOCGETCHILD: - if (copy_from_user(&node, argp, sizeof(int))) - return -EFAULT; + case OPIOCNEXTPROP: + err = opiocnextprop(argp, data); + break; - if (cmd == OPIOCGETNEXT) - node = __prom_getsibling(node); - else - node = __prom_getchild(node); + case OPIOCSET: + err = opiocset(argp, data); + break; + + case OPIOCGETOPTNODE: + BUILD_BUG_ON(sizeof(phandle) != sizeof(int)); - if (__copy_to_user(argp, &node, sizeof(int))) + if (copy_to_user(argp, &options_node->node, sizeof(phandle))) return -EFAULT; return 0; + case OPIOCGETNEXT: + case OPIOCGETCHILD: + err = opiocgetnext(cmd, argp); + break; + default: - if (cnt++ < 10) - printk(KERN_INFO "openprom_bsd_ioctl: cmd 0x%X\n", cmd); return -EINVAL; - } + }; + + return err; } @@ -511,7 +590,6 @@ static int openprom_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg) { DATA *data = (DATA *) file->private_data; - static int cnt; switch (cmd) { case OPROMGETOPT: @@ -563,10 +641,8 @@ static int openprom_ioctl(struct inode * inode, struct file * file, return openprom_bsd_ioctl(inode,file,cmd,arg); default: - if (cnt++ < 10) - printk("openprom_ioctl: cmd 0x%X, arg 0x%lX\n", cmd, arg); return -EINVAL; - } + }; } static long openprom_compat_ioctl(struct file *file, unsigned int cmd, @@ -594,9 +670,7 @@ static long openprom_compat_ioctl(struct file *file, unsigned int cmd, case OPROMSETCUR: case OPROMPCI2NODE: case OPROMPATH2NODE: - lock_kernel(); rval = openprom_ioctl(file->f_dentry->d_inode, file, cmd, arg); - lock_kernel(); break; } @@ -607,13 +681,13 @@ static int openprom_open(struct inode * inode, struct file * file) { DATA *data; - data = (DATA *) kmalloc(sizeof(DATA), GFP_KERNEL); + data = kmalloc(sizeof(DATA), GFP_KERNEL); if (!data) return -ENOMEM; - data->current_node = prom_root_node; - data->lastnode = prom_root_node; - file->private_data = (void *)data; + data->current_node = of_find_node_by_path("/"); + data->lastnode = data->current_node; + file->private_data = (void *) data; return 0; } @@ -634,24 +708,30 @@ static struct file_operations openprom_fops = { }; static struct miscdevice openprom_dev = { - SUN_OPENPROM_MINOR, "openprom", &openprom_fops + .minor = SUN_OPENPROM_MINOR, + .name = "openprom", + .fops = &openprom_fops, }; static int __init openprom_init(void) { - int error; + struct device_node *dp; + int err; - error = misc_register(&openprom_dev); - if (error) { - printk(KERN_ERR "openprom: unable to get misc minor\n"); - return error; - } + err = misc_register(&openprom_dev); + if (err) + return err; - options_node = prom_getchild(prom_root_node); - options_node = prom_searchsiblings(options_node,"options"); + dp = of_find_node_by_path("/"); + dp = dp->child; + while (dp) { + if (!strcmp(dp->name, "options")) + break; + dp = dp->sibling; + } + options_node = dp; - if (options_node == 0 || options_node == -1) { - printk(KERN_ERR "openprom: unable to find options node\n"); + if (!options_node) { misc_deregister(&openprom_dev); return -EIO; } @@ -666,4 +746,3 @@ static void __exit openprom_cleanup(void) module_init(openprom_init); module_exit(openprom_cleanup); -MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 749805dc10e955b0170573061f9522a6a21cbae0 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Jun 2006 23:24:24 -0700 Subject: [SPARC]: Add iomap interfaces. Signed-off-by: David S. Miller --- arch/sparc/lib/Makefile | 2 ++ arch/sparc/lib/iomap.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ include/asm-sparc/io.h | 16 ++++++++++++++++ 3 files changed, 66 insertions(+) create mode 100644 arch/sparc/lib/iomap.c diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile index fa500694606..5db7e1d8538 100644 --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile @@ -9,3 +9,5 @@ lib-y := mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o memcpy.o memset.o \ strncpy_from_user.o divdi3.o udivdi3.o strlen_user.o \ copy_user.o locks.o atomic.o atomic32.o bitops.o \ lshrdi3.o ashldi3.o rwsem.o muldi3.o bitext.o + +obj-y += iomap.o diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c new file mode 100644 index 00000000000..54501c1ca78 --- /dev/null +++ b/arch/sparc/lib/iomap.c @@ -0,0 +1,48 @@ +/* + * Implement the sparc iomap interfaces + */ +#include +#include +#include + +/* Create a virtual mapping cookie for an IO port range */ +void __iomem *ioport_map(unsigned long port, unsigned int nr) +{ + return (void __iomem *) (unsigned long) port; +} + +void ioport_unmap(void __iomem *addr) +{ + /* Nothing to do */ +} +EXPORT_SYMBOL(ioport_map); +EXPORT_SYMBOL(ioport_unmap); + +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ +void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) +{ + unsigned long start = pci_resource_start(dev, bar); + unsigned long len = pci_resource_len(dev, bar); + unsigned long flags = pci_resource_flags(dev, bar); + + if (!len || !start) + return NULL; + if (maxlen && len > maxlen) + len = maxlen; + if (flags & IORESOURCE_IO) + return ioport_map(start, len); + if (flags & IORESOURCE_MEM) { + if (flags & IORESOURCE_CACHEABLE) + return ioremap(start, len); + return ioremap_nocache(start, len); + } + /* What? */ + return NULL; +} + +void pci_iounmap(struct pci_dev *dev, void __iomem * addr) +{ + /* nothing to do */ +} +EXPORT_SYMBOL(pci_iomap); +EXPORT_SYMBOL(pci_iounmap); diff --git a/include/asm-sparc/io.h b/include/asm-sparc/io.h index a42df208d59..cab0b851b8b 100644 --- a/include/asm-sparc/io.h +++ b/include/asm-sparc/io.h @@ -249,6 +249,22 @@ extern void __iomem *ioremap(unsigned long offset, unsigned long size); #define ioremap_nocache(X,Y) ioremap((X),(Y)) extern void iounmap(volatile void __iomem *addr); +#define ioread8(X) readb(X) +#define ioread16(X) readw(X) +#define ioread32(X) readl(X) +#define iowrite8(val,X) writeb(val,X) +#define iowrite16(val,X) writew(val,X) +#define iowrite32(val,X) writel(val,X) + +/* Create a virtual mapping cookie for an IO port range */ +extern void __iomem *ioport_map(unsigned long port, unsigned int nr); +extern void ioport_unmap(void __iomem *); + +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ +struct pci_dev; +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +extern void pci_iounmap(struct pci_dev *dev, void __iomem *); + /* * Bus number may be in res->flags... somewhere. */ -- cgit v1.2.3 From 5e3c8854c1898828ffb0141d4ac4e6190aa9eb4e Mon Sep 17 00:00:00 2001 From: Jon Maloy Date: Sun, 25 Jun 2006 23:36:43 -0700 Subject: [TIPC] Improved tolerance to promiscuous mode interface Signed-off-by: Jon Maloy Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/eth_media.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c index 7a252785f72..b64661904e0 100644 --- a/net/tipc/eth_media.c +++ b/net/tipc/eth_media.c @@ -98,17 +98,19 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev, u32 size; if (likely(eb_ptr->bearer)) { - size = msg_size((struct tipc_msg *)buf->data); - skb_trim(buf, size); - if (likely(buf->len == size)) { - buf->next = NULL; - tipc_recv_msg(buf, eb_ptr->bearer); - } else { - kfree_skb(buf); + if (likely(!dev->promiscuity) || + !memcmp(buf->mac.raw,dev->dev_addr,ETH_ALEN) || + !memcmp(buf->mac.raw,dev->broadcast,ETH_ALEN)) { + size = msg_size((struct tipc_msg *)buf->data); + skb_trim(buf, size); + if (likely(buf->len == size)) { + buf->next = NULL; + tipc_recv_msg(buf, eb_ptr->bearer); + return TIPC_OK; + } } - } else { - kfree_skb(buf); } + kfree_skb(buf); return TIPC_OK; } -- cgit v1.2.3 From 9ab230f82f404e534387dda6067072291441a34d Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:37:24 -0700 Subject: [TIPC]: Prevent name table corruption if no room for new publication Now exits cleanly if attempt to allocate larger array of subsequences fails, without losing track of pointer to existing array. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/name_table.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index d129422fc5c..051143648ed 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -284,18 +284,18 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, /* Ensure there is space for new sub-sequence */ if (nseq->first_free == nseq->alloc) { - struct sub_seq *sseqs = nseq->sseqs; - nseq->sseqs = tipc_subseq_alloc(nseq->alloc * 2); - if (nseq->sseqs != NULL) { - memcpy(nseq->sseqs, sseqs, - nseq->alloc * sizeof (struct sub_seq)); - kfree(sseqs); - dbg("Allocated %u sseqs\n", nseq->alloc); - nseq->alloc *= 2; - } else { + struct sub_seq *sseqs = tipc_subseq_alloc(nseq->alloc * 2); + + if (!sseqs) { warn("Memory squeeze; failed to create sub-sequence\n"); return NULL; } + dbg("Allocated %u more sseqs\n", nseq->alloc); + memcpy(sseqs, nseq->sseqs, + nseq->alloc * sizeof(struct sub_seq)); + kfree(nseq->sseqs); + nseq->sseqs = sseqs; + nseq->alloc *= 2; } dbg("Have %u sseqs for type %u\n", nseq->alloc, type); -- cgit v1.2.3 From 2535ec50b7a51833ff65dc97ca85e1155d4090f8 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:38:00 -0700 Subject: [TIPC]: Use correct upper bound when validating network zone number. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/core.c b/net/tipc/core.c index 3d0a8ee4e1d..31c7dd58b2a 100644 --- a/net/tipc/core.c +++ b/net/tipc/core.c @@ -198,7 +198,7 @@ static int __init tipc_init(void) tipc_max_publications = 10000; tipc_max_subscriptions = 2000; tipc_max_ports = delimit(CONFIG_TIPC_PORTS, 127, 65536); - tipc_max_zones = delimit(CONFIG_TIPC_ZONES, 1, 511); + tipc_max_zones = delimit(CONFIG_TIPC_ZONES, 1, 255); tipc_max_clusters = delimit(CONFIG_TIPC_CLUSTERS, 1, 1); tipc_max_nodes = delimit(CONFIG_TIPC_NODES, 8, 2047); tipc_max_slaves = delimit(CONFIG_TIPC_SLAVE_NODES, 0, 2047); -- cgit v1.2.3 From 49384507896ee26e67266cebef6b6a9f2e31081c Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:38:29 -0700 Subject: [TIPC]: Corrected potential misuse of tipc_media_addr structure. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- include/net/tipc/tipc_bearer.h | 12 ++++++++++-- net/tipc/eth_media.c | 4 +++- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/include/net/tipc/tipc_bearer.h b/include/net/tipc/tipc_bearer.h index 098607cd4b7..e07136d74c2 100644 --- a/include/net/tipc/tipc_bearer.h +++ b/include/net/tipc/tipc_bearer.h @@ -49,10 +49,18 @@ #define TIPC_MEDIA_TYPE_ETH 1 +/* + * Destination address structure used by TIPC bearers when sending messages + * + * IMPORTANT: The fields of this structure MUST be stored using the specified + * byte order indicated below, as the structure is exchanged between nodes + * as part of a link setup process. + */ + struct tipc_media_addr { - __u32 type; + __u32 type; /* bearer type (network byte order) */ union { - __u8 eth_addr[6]; /* Ethernet bearer */ + __u8 eth_addr[6]; /* 48 bit Ethernet addr (byte array) */ #if 0 /* Prototypes for other possible bearer types */ diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c index b64661904e0..3ecb1006a42 100644 --- a/net/tipc/eth_media.c +++ b/net/tipc/eth_media.c @@ -254,7 +254,9 @@ int tipc_eth_media_start(void) if (eth_started) return -EINVAL; - memset(&bcast_addr, 0xff, sizeof(bcast_addr)); + bcast_addr.type = htonl(TIPC_MEDIA_TYPE_ETH); + memset(&bcast_addr.dev_addr, 0xff, ETH_ALEN); + memset(eth_bearers, 0, sizeof(eth_bearers)); res = tipc_register_media(TIPC_MEDIA_TYPE_ETH, "eth", -- cgit v1.2.3 From 9688243b635ecede23fe4492ba23f36439398095 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:38:58 -0700 Subject: [TIPC]: Allow ports to receive multicast messages through native API. This fix prevents a kernel panic if an application mistakenly sends a multicast message to TIPC's topology service or configuration service. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/port.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/net/tipc/port.c b/net/tipc/port.c index 67e96cb1e82..360920b3d82 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -810,18 +810,20 @@ static void port_dispatcher_sigh(void *dummy) void *usr_handle; int connected; int published; + u32 message_type; struct sk_buff *next = buf->next; struct tipc_msg *msg = buf_msg(buf); u32 dref = msg_destport(msg); + message_type = msg_type(msg); + if (message_type > TIPC_DIRECT_MSG) + goto reject; /* Unsupported message type */ + p_ptr = tipc_port_lock(dref); - if (!p_ptr) { - /* Port deleted while msg in queue */ - tipc_reject_msg(buf, TIPC_ERR_NO_PORT); - buf = next; - continue; - } + if (!p_ptr) + goto reject; /* Port deleted while msg in queue */ + orig.ref = msg_origport(msg); orig.node = msg_orignode(msg); up_ptr = p_ptr->user_port; @@ -832,7 +834,7 @@ static void port_dispatcher_sigh(void *dummy) if (unlikely(msg_errcode(msg))) goto err; - switch (msg_type(msg)) { + switch (message_type) { case TIPC_CONN_MSG:{ tipc_conn_msg_event cb = up_ptr->conn_msg_cb; @@ -874,6 +876,7 @@ static void port_dispatcher_sigh(void *dummy) &orig); break; } + case TIPC_MCAST_MSG: case TIPC_NAMED_MSG:{ tipc_named_msg_event cb = up_ptr->named_msg_cb; @@ -886,7 +889,8 @@ static void port_dispatcher_sigh(void *dummy) goto reject; dseq.type = msg_nametype(msg); dseq.lower = msg_nameinst(msg); - dseq.upper = dseq.lower; + dseq.upper = (message_type == TIPC_NAMED_MSG) + ? dseq.lower : msg_nameupper(msg); skb_pull(buf, msg_hdr_sz(msg)); cb(usr_handle, dref, &buf, msg_data(msg), msg_data_sz(msg), msg_importance(msg), @@ -899,7 +903,7 @@ static void port_dispatcher_sigh(void *dummy) buf = next; continue; err: - switch (msg_type(msg)) { + switch (message_type) { case TIPC_CONN_MSG:{ tipc_conn_shutdown_event cb = @@ -931,6 +935,7 @@ err: msg_data_sz(msg), msg_errcode(msg), &orig); break; } + case TIPC_MCAST_MSG: case TIPC_NAMED_MSG:{ tipc_named_msg_err_event cb = up_ptr->named_err_cb; @@ -940,7 +945,8 @@ err: break; dseq.type = msg_nametype(msg); dseq.lower = msg_nameinst(msg); - dseq.upper = dseq.lower; + dseq.upper = (message_type == TIPC_NAMED_MSG) + ? dseq.lower : msg_nameupper(msg); skb_pull(buf, msg_hdr_sz(msg)); cb(usr_handle, dref, &buf, msg_data(msg), msg_data_sz(msg), msg_errcode(msg), &dseq); -- cgit v1.2.3 From 260082471ed3f6d751e9767e5a278d4e495d83f7 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:39:31 -0700 Subject: [TIPC]: Links now validate destination node specified by incoming messages. This fix prevents link flopping and name table inconsistency problems arising when a node is assigned a different value than it used previously. (Changing the value causes other nodes to have two link endpoints sending to the same MAC address using two different destination values, requiring the receiving node to filter out the unwanted messages.) Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/link.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/tipc/link.c b/net/tipc/link.c index 784b24b6d10..955b87d9b46 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1720,6 +1720,11 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr) link_recv_non_seq(buf); continue; } + + if (unlikely(!msg_short(msg) && + (msg_destnode(msg) != tipc_own_addr))) + goto cont; + n_ptr = tipc_node_find(msg_prevnode(msg)); if (unlikely(!n_ptr)) goto cont; -- cgit v1.2.3 From d356eeba8e34786621d85468e5176052813a3059 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:40:01 -0700 Subject: [TIPC]: Multicast link failure now resets all links to "nacking" node. This fix prevents node from crashing. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/bcast.c | 32 ++++++++++---- net/tipc/link.c | 124 +++++++++++++++++++++++++++++++++++++++++++++---------- 2 files changed, 128 insertions(+), 28 deletions(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 2c4ecbe5008..00691b7c35f 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -49,13 +49,19 @@ #include "name_table.h" #include "bcast.h" - #define MAX_PKT_DEFAULT_MCAST 1500 /* bcast link max packet size (fixed) */ #define BCLINK_WIN_DEFAULT 20 /* bcast link window size (default) */ #define BCLINK_LOG_BUF_SIZE 0 +/* + * Loss rate for incoming broadcast frames; used to test retransmission code. + * Set to N to cause every N'th frame to be discarded; 0 => don't discard any. + */ + +#define TIPC_BCAST_LOSS_RATE 0 + /** * struct bcbearer_pair - a pair of bearers used by broadcast link * @primary: pointer to primary bearer @@ -165,21 +171,18 @@ static int bclink_ack_allowed(u32 n) * @after: sequence number of last packet to *not* retransmit * @to: sequence number of last packet to retransmit * - * Called with 'node' locked, bc_lock unlocked + * Called with bc_lock locked */ static void bclink_retransmit_pkt(u32 after, u32 to) { struct sk_buff *buf; - spin_lock_bh(&bc_lock); buf = bcl->first_out; while (buf && less_eq(buf_seqno(buf), after)) { buf = buf->next; } - if (buf != NULL) - tipc_link_retransmit(bcl, buf, mod(to - after)); - spin_unlock_bh(&bc_lock); + tipc_link_retransmit(bcl, buf, mod(to - after)); } /** @@ -399,7 +402,10 @@ int tipc_bclink_send_msg(struct sk_buff *buf) */ void tipc_bclink_recv_pkt(struct sk_buff *buf) -{ +{ +#if (TIPC_BCAST_LOSS_RATE) + static int rx_count = 0; +#endif struct tipc_msg *msg = buf_msg(buf); struct node* node = tipc_node_find(msg_prevnode(msg)); u32 next_in; @@ -420,9 +426,13 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf) tipc_node_lock(node); tipc_bclink_acknowledge(node, msg_bcast_ack(msg)); tipc_node_unlock(node); + spin_lock_bh(&bc_lock); bcl->stats.recv_nacks++; + bcl->owner->next = node; /* remember requestor */ bclink_retransmit_pkt(msg_bcgap_after(msg), msg_bcgap_to(msg)); + bcl->owner->next = NULL; + spin_unlock_bh(&bc_lock); } else { tipc_bclink_peek_nack(msg_destnode(msg), msg_bcast_tag(msg), @@ -433,6 +443,14 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf) return; } +#if (TIPC_BCAST_LOSS_RATE) + if (++rx_count == TIPC_BCAST_LOSS_RATE) { + rx_count = 0; + buf_discard(buf); + return; + } +#endif + tipc_node_lock(node); receive: deferred = node->bclink.deferred_head; diff --git a/net/tipc/link.c b/net/tipc/link.c index 955b87d9b46..ba7d3f19be1 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1604,40 +1604,121 @@ void tipc_link_push_queue(struct link *l_ptr) tipc_bearer_schedule(l_ptr->b_ptr, l_ptr); } +static void link_reset_all(unsigned long addr) +{ + struct node *n_ptr; + char addr_string[16]; + u32 i; + + read_lock_bh(&tipc_net_lock); + n_ptr = tipc_node_find((u32)addr); + if (!n_ptr) { + read_unlock_bh(&tipc_net_lock); + return; /* node no longer exists */ + } + + tipc_node_lock(n_ptr); + + warn("Resetting all links to %s\n", + addr_string_fill(addr_string, n_ptr->addr)); + + for (i = 0; i < MAX_BEARERS; i++) { + if (n_ptr->links[i]) { + link_print(n_ptr->links[i], TIPC_OUTPUT, + "Resetting link\n"); + tipc_link_reset(n_ptr->links[i]); + } + } + + tipc_node_unlock(n_ptr); + read_unlock_bh(&tipc_net_lock); +} + +static void link_retransmit_failure(struct link *l_ptr, struct sk_buff *buf) +{ + struct tipc_msg *msg = buf_msg(buf); + + warn("Retransmission failure on link <%s>\n", l_ptr->name); + tipc_msg_print(TIPC_OUTPUT, msg, ">RETR-FAIL>"); + + if (l_ptr->addr) { + + /* Handle failure on standard link */ + + link_print(l_ptr, TIPC_OUTPUT, "Resetting link\n"); + tipc_link_reset(l_ptr); + + } else { + + /* Handle failure on broadcast link */ + + struct node *n_ptr; + char addr_string[16]; + + tipc_printf(TIPC_OUTPUT, "Msg seq number: %u, ", msg_seqno(msg)); + tipc_printf(TIPC_OUTPUT, "Outstanding acks: %u\n", (u32)TIPC_SKB_CB(buf)->handle); + + n_ptr = l_ptr->owner->next; + tipc_node_lock(n_ptr); + + addr_string_fill(addr_string, n_ptr->addr); + tipc_printf(TIPC_OUTPUT, "Multicast link info for %s\n", addr_string); + tipc_printf(TIPC_OUTPUT, "Supported: %d, ", n_ptr->bclink.supported); + tipc_printf(TIPC_OUTPUT, "Acked: %u\n", n_ptr->bclink.acked); + tipc_printf(TIPC_OUTPUT, "Last in: %u, ", n_ptr->bclink.last_in); + tipc_printf(TIPC_OUTPUT, "Gap after: %u, ", n_ptr->bclink.gap_after); + tipc_printf(TIPC_OUTPUT, "Gap to: %u\n", n_ptr->bclink.gap_to); + tipc_printf(TIPC_OUTPUT, "Nack sync: %u\n\n", n_ptr->bclink.nack_sync); + + tipc_k_signal((Handler)link_reset_all, (unsigned long)n_ptr->addr); + + tipc_node_unlock(n_ptr); + + l_ptr->stale_count = 0; + } +} + void tipc_link_retransmit(struct link *l_ptr, struct sk_buff *buf, u32 retransmits) { struct tipc_msg *msg; + if (!buf) + return; + + msg = buf_msg(buf); + dbg("Retransmitting %u in link %x\n", retransmits, l_ptr); - if (tipc_bearer_congested(l_ptr->b_ptr, l_ptr) && buf && !skb_cloned(buf)) { - msg_dbg(buf_msg(buf), ">NO_RETR->BCONG>"); - dbg_print_link(l_ptr, " "); - l_ptr->retransm_queue_head = msg_seqno(buf_msg(buf)); - l_ptr->retransm_queue_size = retransmits; - return; + if (tipc_bearer_congested(l_ptr->b_ptr, l_ptr)) { + if (!skb_cloned(buf)) { + msg_dbg(msg, ">NO_RETR->BCONG>"); + dbg_print_link(l_ptr, " "); + l_ptr->retransm_queue_head = msg_seqno(msg); + l_ptr->retransm_queue_size = retransmits; + return; + } else { + /* Don't retransmit if driver already has the buffer */ + } + } else { + /* Detect repeated retransmit failures on uncongested bearer */ + + if (l_ptr->last_retransmitted == msg_seqno(msg)) { + if (++l_ptr->stale_count > 100) { + link_retransmit_failure(l_ptr, buf); + return; + } + } else { + l_ptr->last_retransmitted = msg_seqno(msg); + l_ptr->stale_count = 1; + } } + while (retransmits && (buf != l_ptr->next_out) && buf && !skb_cloned(buf)) { msg = buf_msg(buf); msg_set_ack(msg, mod(l_ptr->next_in_no - 1)); msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in); if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) { - /* Catch if retransmissions fail repeatedly: */ - if (l_ptr->last_retransmitted == msg_seqno(msg)) { - if (++l_ptr->stale_count > 100) { - tipc_msg_print(TIPC_CONS, buf_msg(buf), ">RETR>"); - info("...Retransmitted %u times\n", - l_ptr->stale_count); - link_print(l_ptr, TIPC_CONS, "Resetting Link\n"); - tipc_link_reset(l_ptr); - break; - } - } else { - l_ptr->stale_count = 0; - } - l_ptr->last_retransmitted = msg_seqno(msg); - msg_dbg(buf_msg(buf), ">RETR>"); buf = buf->next; retransmits--; @@ -1650,6 +1731,7 @@ void tipc_link_retransmit(struct link *l_ptr, struct sk_buff *buf, return; } } + l_ptr->retransm_queue_head = l_ptr->retransm_queue_size = 0; } -- cgit v1.2.3 From a4e0927902508a5f7f04be56d3c3e1b174481705 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:40:35 -0700 Subject: [TIPC]: Allow compilation when CONFIG_TIPC_DEBUG is not set. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/core.h | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/net/tipc/core.h b/net/tipc/core.h index 1f2e8b27a13..d1edb7af550 100644 --- a/net/tipc/core.h +++ b/net/tipc/core.h @@ -2,7 +2,7 @@ * net/tipc/core.h: Include file for TIPC global declarations * * Copyright (c) 2005-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems + * Copyright (c) 2005-2006, Wind River Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -111,10 +111,6 @@ void tipc_dump(struct print_buf*,const char *fmt, ...); #else -#ifndef DBG_OUTPUT -#define DBG_OUTPUT NULL -#endif - /* * TIPC debug support not included: * - system messages are printed to system console @@ -129,6 +125,19 @@ void tipc_dump(struct print_buf*,const char *fmt, ...); #define msg_dbg(msg,txt) do {} while (0) #define dump(fmt,arg...) do {} while (0) + +/* + * TIPC_OUTPUT is defined to be the system console, while DBG_OUTPUT is + * the null print buffer. Thes ensures that any system or debug messages + * that are generated without using the above macros are handled correctly. + */ + +#undef TIPC_OUTPUT +#define TIPC_OUTPUT TIPC_CONS + +#undef DBG_OUTPUT +#define DBG_OUTPUT NULL + #endif -- cgit v1.2.3 From 3ac90216abc7d39e694533aec2805efeb06bf8ac Mon Sep 17 00:00:00 2001 From: Eric Sesterhenn Date: Sun, 25 Jun 2006 23:41:15 -0700 Subject: [TIPC] Fix for NULL pointer dereference This fixes a bug spotted by the coverity checker, bug id #366. If (mod(seqno - prev) != 1) we set buf to NULL, dereference it in the for case, and set it to whatever value happes to be at adress 0+next, if it happens to be non-zero, we even stay in the loop. It seems that the author intended to break there. Signed-off-by: Eric Sesterhenn Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/bcast.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 00691b7c35f..44645f56377 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -349,8 +349,10 @@ static void tipc_bclink_peek_nack(u32 dest, u32 sender_tag, u32 gap_after, u32 g for (; buf; buf = buf->next) { u32 seqno = buf_seqno(buf); - if (mod(seqno - prev) != 1) + if (mod(seqno - prev) != 1) { buf = NULL; + break; + } if (seqno == gap_after) break; prev = seqno; -- cgit v1.2.3 From 70cb23477019b8739d23ead223539c7e6dfc509c Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:41:47 -0700 Subject: [TIPC]: Fixed privilege checking typo in dest_name_check(). This patch originated by Stephane Ouellette . Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 648a734e604..eaf4d6951a4 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -426,7 +426,7 @@ static int dest_name_check(struct sockaddr_tipc *dest, struct msghdr *m) if (copy_from_user(&hdr, m->msg_iov[0].iov_base, sizeof(hdr))) return -EFAULT; - if ((ntohs(hdr.tcm_type) & 0xC000) & (!capable(CAP_NET_ADMIN))) + if ((ntohs(hdr.tcm_type) & 0xC000) && (!capable(CAP_NET_ADMIN))) return -EACCES; return 0; -- cgit v1.2.3 From 8b1f0a92e98a67e1e69aa37d538f8956d1640cba Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:42:19 -0700 Subject: [TIPC]: Fix misleading comment in buf_discard() routine. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/core.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/core.h b/net/tipc/core.h index d1edb7af550..86f54f3512f 100644 --- a/net/tipc/core.h +++ b/net/tipc/core.h @@ -318,7 +318,7 @@ static inline struct sk_buff *buf_acquire(u32 size) * buf_discard - frees a TIPC message buffer * @skb: message buffer * - * Frees a new buffer. If passed NULL, just returns. + * Frees a message buffer. If passed NULL, just returns. */ static inline void buf_discard(struct sk_buff *skb) -- cgit v1.2.3 From a592ea6362a967a49eb4b5d1cd36b78d8f180622 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:42:47 -0700 Subject: [TIPC]: Added support for MODULE_VERSION capability. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/tipc/core.c b/net/tipc/core.c index 31c7dd58b2a..5003acb1591 100644 --- a/net/tipc/core.c +++ b/net/tipc/core.c @@ -2,7 +2,7 @@ * net/tipc/core.c: TIPC module code * * Copyright (c) 2003-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems + * Copyright (c) 2005-2006, Wind River Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -57,7 +57,7 @@ void tipc_socket_stop(void); int tipc_netlink_start(void); void tipc_netlink_stop(void); -#define MOD_NAME "tipc_start: " +#define TIPC_MOD_VER "1.6.1" #ifndef CONFIG_TIPC_ZONES #define CONFIG_TIPC_ZONES 3 @@ -224,6 +224,7 @@ module_exit(tipc_exit); MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication"); MODULE_LICENSE("Dual BSD/GPL"); +MODULE_VERSION(TIPC_MOD_VER); /* Native TIPC API for kernel-space applications (see tipc.h) */ -- cgit v1.2.3 From 687a25f1cdfc6ee1f2f60f299dbd294908eb0d59 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:43:21 -0700 Subject: [TIPC]: Validate entire interface name when locating bearer to enable. This fix prevents a bearer from being enabled using the wrong interface. For example, specifying "eth:eth14" might enable "eth:eth1" by mistake. Signed-off-by: Allan Stephens Signed-off-by: Per Liden --- net/tipc/eth_media.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c index 3ecb1006a42..682da4a2804 100644 --- a/net/tipc/eth_media.c +++ b/net/tipc/eth_media.c @@ -2,7 +2,7 @@ * net/tipc/eth_media.c: Ethernet bearer support for TIPC * * Copyright (c) 2001-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems + * Copyright (c) 2005-2006, Wind River Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -127,8 +127,7 @@ static int enable_bearer(struct tipc_bearer *tb_ptr) /* Find device with specified name */ - while (dev && dev->name && - (memcmp(dev->name, driver_name, strlen(dev->name)))) { + while (dev && dev->name && strncmp(dev->name, driver_name, IFNAMSIZ)) { dev = dev->next; } if (!dev) -- cgit v1.2.3 From e9024f0f79c3f847a793d6a16bf4fefc6d7a4649 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:43:57 -0700 Subject: [TIPC]: Non-operation-affecting corrections to comments & function definitions. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index eaf4d6951a4..0923213fc6a 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -437,7 +437,7 @@ static int dest_name_check(struct sockaddr_tipc *dest, struct msghdr *m) * @iocb: (unused) * @sock: socket structure * @m: message to send - * @total_len: (unused) + * @total_len: length of message * * Message must have an destination specified explicitly. * Used for SOCK_RDM and SOCK_DGRAM messages, @@ -538,7 +538,7 @@ exit: * @iocb: (unused) * @sock: socket structure * @m: message to send - * @total_len: (unused) + * @total_len: length of message * * Used for SOCK_SEQPACKET messages and SOCK_STREAM data. * @@ -1386,7 +1386,7 @@ exit: /** * shutdown - shutdown socket connection * @sock: socket structure - * @how: direction to close (always treated as read + write) + * @how: direction to close (unused; always treated as read + write) * * Terminates connection (if necessary), then purges socket's receive queue. * @@ -1469,7 +1469,8 @@ restart: * Returns 0 on success, errno otherwise */ -static int setsockopt(struct socket *sock, int lvl, int opt, char *ov, int ol) +static int setsockopt(struct socket *sock, + int lvl, int opt, char __user *ov, int ol) { struct tipc_sock *tsock = tipc_sk(sock->sk); u32 value; @@ -1525,7 +1526,8 @@ static int setsockopt(struct socket *sock, int lvl, int opt, char *ov, int ol) * Returns 0 on success, errno otherwise */ -static int getsockopt(struct socket *sock, int lvl, int opt, char *ov, int *ol) +static int getsockopt(struct socket *sock, + int lvl, int opt, char __user *ov, int *ol) { struct tipc_sock *tsock = tipc_sk(sock->sk); int len; -- cgit v1.2.3 From 6b384de853c9f05e5e6da6c95edb475b96dd2cc1 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:44:27 -0700 Subject: [TIPC]: Fixed connect() to detect a dest address that is missing or too short. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 0923213fc6a..758b2d2d2f9 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1244,7 +1244,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, if (sock->state != SS_UNCONNECTED) return -EISCONN; - if ((dst->family != AF_TIPC) || + if ((destlen < sizeof(*dst)) || (dst->family != AF_TIPC) || ((dst->addrtype != TIPC_ADDR_NAME) && (dst->addrtype != TIPC_ADDR_ID))) return -EINVAL; -- cgit v1.2.3 From 3388007bc4d662e50c2c01a7fb1fa2c31cea98ad Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:44:57 -0700 Subject: [TIPC]: Implied connect now saves dest name for retrieval as ancillary data. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 758b2d2d2f9..98550b90a73 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -470,6 +470,10 @@ static int send_msg(struct kiocb *iocb, struct socket *sock, if ((tsock->p->published) || ((sock->type == SOCK_STREAM) && (total_len != 0))) return -EOPNOTSUPP; + if (dest->addrtype == TIPC_ADDR_NAME) { + tsock->p->conn_type = dest->addr.name.name.type; + tsock->p->conn_instance = dest->addr.name.name.instance; + } } if (down_interruptible(&tsock->sem)) @@ -1269,10 +1273,6 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, msg = buf_msg(buf); res = auto_connect(sock, tsock, msg); if (!res) { - if (dst->addrtype == TIPC_ADDR_NAME) { - tsock->p->conn_type = dst->addr.name.name.type; - tsock->p->conn_instance = dst->addr.name.name.instance; - } if (!msg_data_sz(msg)) advance_queue(tsock); } -- cgit v1.2.3 From 3546c7508d7e97fd855f8ac37afdd09622fa5ce1 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:45:24 -0700 Subject: [TIPC]: Can now return destination name of form {0,x,y} via ancillary data. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 98550b90a73..361dc342f37 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -731,6 +731,7 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg, u32 anc_data[3]; u32 err; u32 dest_type; + int has_name; int res; if (likely(m->msg_controllen == 0)) @@ -755,24 +756,27 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg, dest_type = msg ? msg_type(msg) : TIPC_DIRECT_MSG; switch (dest_type) { case TIPC_NAMED_MSG: + has_name = 1; anc_data[0] = msg_nametype(msg); anc_data[1] = msg_namelower(msg); anc_data[2] = msg_namelower(msg); break; case TIPC_MCAST_MSG: + has_name = 1; anc_data[0] = msg_nametype(msg); anc_data[1] = msg_namelower(msg); anc_data[2] = msg_nameupper(msg); break; case TIPC_CONN_MSG: + has_name = (tport->conn_type != 0); anc_data[0] = tport->conn_type; anc_data[1] = tport->conn_instance; anc_data[2] = tport->conn_instance; break; default: - anc_data[0] = 0; + has_name = 0; } - if (anc_data[0] && + if (has_name && (res = put_cmsg(m, SOL_SOCKET, TIPC_DESTNAME, 12, anc_data))) return res; -- cgit v1.2.3 From bdd94789d2348e20d13c1d5e477c8cf830dd204b Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:45:53 -0700 Subject: [TIPC]: Connected send now checks socket state when retrying congested send. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 361dc342f37..9c834fc3011 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -565,15 +565,15 @@ static int send_packet(struct kiocb *iocb, struct socket *sock, return -ERESTARTSYS; } - if (unlikely(sock->state != SS_CONNECTED)) { - if (sock->state == SS_DISCONNECTING) - res = -EPIPE; - else - res = -ENOTCONN; - goto exit; - } - do { + if (unlikely(sock->state != SS_CONNECTED)) { + if (sock->state == SS_DISCONNECTING) + res = -EPIPE; + else + res = -ENOTCONN; + goto exit; + } + res = tipc_send(tsock->p->ref, m->msg_iovlen, m->msg_iov); if (likely(res != -ELINKCONG)) { exit: -- cgit v1.2.3 From 1303e8f173a8a5000ee6e2fba876fec9474ed1f6 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:46:50 -0700 Subject: [TIPC]: Stream socket send indicates partial success if data partially sent. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 9c834fc3011..8cefacb55aa 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -601,7 +601,8 @@ exit: * * Used for SOCK_STREAM data. * - * Returns the number of bytes sent on success, or errno otherwise + * Returns the number of bytes sent on success (or partial success), + * or errno if no data sent */ @@ -615,6 +616,7 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, char __user *curr_start; int curr_left; int bytes_to_send; + int bytes_sent; int res; if (likely(total_len <= TIPC_MAX_USER_MSG_SIZE)) @@ -637,11 +639,11 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, * of small iovec entries into send_packet(). */ - my_msg = *m; - curr_iov = my_msg.msg_iov; - curr_iovlen = my_msg.msg_iovlen; + curr_iov = m->msg_iov; + curr_iovlen = m->msg_iovlen; my_msg.msg_iov = &my_iov; my_msg.msg_iovlen = 1; + bytes_sent = 0; while (curr_iovlen--) { curr_start = curr_iov->iov_base; @@ -652,16 +654,18 @@ static int send_stream(struct kiocb *iocb, struct socket *sock, ? curr_left : TIPC_MAX_USER_MSG_SIZE; my_iov.iov_base = curr_start; my_iov.iov_len = bytes_to_send; - if ((res = send_packet(iocb, sock, &my_msg, 0)) < 0) - return res; + if ((res = send_packet(iocb, sock, &my_msg, 0)) < 0) { + return bytes_sent ? bytes_sent : res; + } curr_left -= bytes_to_send; curr_start += bytes_to_send; + bytes_sent += bytes_to_send; } curr_iov++; } - return total_len; + return bytes_sent; } /** -- cgit v1.2.3 From 499786516fc12791223f075d682a45ea1129eb04 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:47:18 -0700 Subject: [TIPC]: Improved performance of error checking during socket creation. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 8cefacb55aa..a1f22100a61 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -169,12 +169,6 @@ static int tipc_create(struct socket *sock, int protocol) struct sock *sk; u32 ref; - if ((sock->type != SOCK_STREAM) && - (sock->type != SOCK_SEQPACKET) && - (sock->type != SOCK_DGRAM) && - (sock->type != SOCK_RDM)) - return -EPROTOTYPE; - if (unlikely(protocol != 0)) return -EPROTONOSUPPORT; @@ -199,6 +193,9 @@ static int tipc_create(struct socket *sock, int protocol) sock->ops = &msg_ops; sock->state = SS_READY; break; + default: + tipc_deleteport(ref); + return -EPROTOTYPE; } sk = sk_alloc(AF_TIPC, GFP_KERNEL, &tipc_proto, 1); -- cgit v1.2.3 From 4b087b28a629cc9388e42fdccdcd929deaa7ac81 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:47:44 -0700 Subject: [TIPC]: recvmsg() now returns TIPC ancillary data using correct level (SOL_TIPC) Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index a1f22100a61..abecf2d422f 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -744,10 +744,10 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg, if (unlikely(err)) { anc_data[0] = err; anc_data[1] = msg_data_sz(msg); - if ((res = put_cmsg(m, SOL_SOCKET, TIPC_ERRINFO, 8, anc_data))) + if ((res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data))) return res; if (anc_data[1] && - (res = put_cmsg(m, SOL_SOCKET, TIPC_RETDATA, anc_data[1], + (res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1], msg_data(msg)))) return res; } @@ -778,7 +778,7 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg, has_name = 0; } if (has_name && - (res = put_cmsg(m, SOL_SOCKET, TIPC_DESTNAME, 12, anc_data))) + (res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data))) return res; return 0; -- cgit v1.2.3 From a3b0a5a9d004002a9cf9cf7a9d10cf1447a73d2b Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:48:22 -0700 Subject: [TIPC]: Simplify code for returning partial success of stream send request. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index abecf2d422f..6d4d2b0063a 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -969,7 +969,7 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock, restart: if (unlikely((skb_queue_len(&sock->sk->sk_receive_queue) == 0) && (flags & MSG_DONTWAIT))) { - res = (sz_copied == 0) ? -EWOULDBLOCK : 0; + res = -EWOULDBLOCK; goto exit; } @@ -1060,7 +1060,7 @@ restart: exit: up(&tsock->sem); - return res ? res : sz_copied; + return sz_copied ? sz_copied : res; } /** -- cgit v1.2.3 From 51f9cc1ff8aa0866ff8fb3c06be4c64b5edbb2e8 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:49:06 -0700 Subject: [TIPC]: Optimized argument validation done by connect(). Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/socket.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 6d4d2b0063a..32d778448a0 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -455,7 +455,8 @@ static int send_msg(struct kiocb *iocb, struct socket *sock, if (unlikely(!dest)) return -EDESTADDRREQ; - if (unlikely(dest->family != AF_TIPC)) + if (unlikely((m->msg_namelen < sizeof(*dest)) || + (dest->family != AF_TIPC))) return -EINVAL; needs_conn = (sock->state != SS_READY); @@ -1245,7 +1246,8 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, if (sock->state == SS_READY) return -EOPNOTSUPP; - /* MOVE THE REST OF THIS ERROR CHECKING TO send_msg()? */ + /* Issue Posix-compliant error code if socket is in the wrong state */ + if (sock->state == SS_LISTENING) return -EOPNOTSUPP; if (sock->state == SS_CONNECTING) @@ -1253,13 +1255,20 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen, if (sock->state != SS_UNCONNECTED) return -EISCONN; - if ((destlen < sizeof(*dst)) || (dst->family != AF_TIPC) || - ((dst->addrtype != TIPC_ADDR_NAME) && (dst->addrtype != TIPC_ADDR_ID))) + /* + * Reject connection attempt using multicast address + * + * Note: send_msg() validates the rest of the address fields, + * so there's no need to do it here + */ + + if (dst->addrtype == TIPC_ADDR_MCAST) return -EINVAL; /* Send a 'SYN-' to destination */ m.msg_name = dest; + m.msg_namelen = destlen; if ((res = send_msg(NULL, sock, &m, 0)) < 0) { sock->state = SS_DISCONNECTING; return res; -- cgit v1.2.3 From a7513528cd0deeb62624c229c21054472ec976e6 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:49:33 -0700 Subject: [TIPC]: Withdrawing all names from nameless port now returns success, not error Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/port.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/tipc/port.c b/net/tipc/port.c index 360920b3d82..899e08eac2c 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -1171,8 +1171,6 @@ int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) p_ptr = tipc_port_lock(ref); if (!p_ptr) return -EINVAL; - if (!p_ptr->publ.published) - goto exit; if (!seq) { list_for_each_entry_safe(publ, tpubl, &p_ptr->publications, pport_list) { @@ -1199,7 +1197,6 @@ int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) } if (list_empty(&p_ptr->publications)) p_ptr->publ.published = 0; -exit: tipc_port_unlock(p_ptr); return res; } -- cgit v1.2.3 From a75bf874278d8318ffe11043f3acb9b281fa911a Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:50:01 -0700 Subject: [TIPC]: Added missing warning for out-of-memory condition Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/port.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/tipc/port.c b/net/tipc/port.c index 899e08eac2c..99846a18d94 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -1061,6 +1061,7 @@ int tipc_createport(u32 user_ref, up_ptr = (struct user_port *)kmalloc(sizeof(*up_ptr), GFP_ATOMIC); if (up_ptr == NULL) { + warn("Port creation failed, no memory\n"); return -ENOMEM; } ref = tipc_createport_raw(NULL, port_dispatcher, port_wakeup, importance); -- cgit v1.2.3 From c33d53b23589d9133af85effefbaa619853eb7f0 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:50:30 -0700 Subject: [TIPC]: Fixed memory leak in tipc_link_send() when destination is unreachable Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/link.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index ba7d3f19be1..ff40c9195fe 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1135,9 +1135,13 @@ int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector) if (n_ptr) { tipc_node_lock(n_ptr); l_ptr = n_ptr->active_links[selector & 1]; - dbg("tipc_link_send: found link %x for dest %x\n", l_ptr, dest); if (l_ptr) { + dbg("tipc_link_send: found link %x for dest %x\n", l_ptr, dest); res = tipc_link_send_buf(l_ptr, buf); + } else { + dbg("Attempt to send msg to unreachable node:\n"); + msg_dbg(buf_msg(buf),">>>"); + buf_discard(buf); } tipc_node_unlock(n_ptr); } else { -- cgit v1.2.3 From e100ae92a68c55e7ba287866c20fe1b0ad4fcdee Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:51:08 -0700 Subject: [TIPC]: Disallow config operations that aren't supported in certain modes. This change provides user-friendly feedback when TIPC is unable to perform certain configuration operations that don't work properly in certain modes. (In particular, any reconfiguration request that would temporarily take TIPC from network mode to standalone mode, or from standalone mode to not running mode, is disallowed.) Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/config.c | 83 +++++++++++++++++++++++++------------------------------ 1 file changed, 38 insertions(+), 45 deletions(-) diff --git a/net/tipc/config.c b/net/tipc/config.c index 48b5de2dbe6..41c8447276f 100644 --- a/net/tipc/config.c +++ b/net/tipc/config.c @@ -291,13 +291,22 @@ static struct sk_buff *cfg_set_own_addr(void) if (!tipc_addr_node_valid(addr)) return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE " (node address)"); - if (tipc_own_addr) + if (tipc_mode == TIPC_NET_MODE) return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED " (cannot change node address once assigned)"); + tipc_own_addr = addr; + + /* + * Must release all spinlocks before calling start_net() because + * Linux version of TIPC calls eth_media_start() which calls + * register_netdevice_notifier() which may block! + * + * Temporarily releasing the lock should be harmless for non-Linux TIPC, + * but Linux version of eth_media_start() should really be reworked + * so that it can be called with spinlocks held. + */ spin_unlock_bh(&config_lock); - tipc_core_stop_net(); - tipc_own_addr = addr; tipc_core_start_net(); spin_lock_bh(&config_lock); return tipc_cfg_reply_none(); @@ -350,50 +359,21 @@ static struct sk_buff *cfg_set_max_subscriptions(void) static struct sk_buff *cfg_set_max_ports(void) { - int orig_mode; u32 value; if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); value = *(u32 *)TLV_DATA(req_tlv_area); value = ntohl(value); + if (value == tipc_max_ports) + return tipc_cfg_reply_none(); if (value != delimit(value, 127, 65535)) return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE " (max ports must be 127-65535)"); - - if (value == tipc_max_ports) - return tipc_cfg_reply_none(); - - if (atomic_read(&tipc_user_count) > 2) + if (tipc_mode != TIPC_NOT_RUNNING) return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED - " (cannot change max ports while TIPC users exist)"); - - spin_unlock_bh(&config_lock); - orig_mode = tipc_get_mode(); - if (orig_mode == TIPC_NET_MODE) - tipc_core_stop_net(); - tipc_core_stop(); + " (cannot change max ports while TIPC is active)"); tipc_max_ports = value; - tipc_core_start(); - if (orig_mode == TIPC_NET_MODE) - tipc_core_start_net(); - spin_lock_bh(&config_lock); - return tipc_cfg_reply_none(); -} - -static struct sk_buff *set_net_max(int value, int *parameter) -{ - int orig_mode; - - if (value != *parameter) { - orig_mode = tipc_get_mode(); - if (orig_mode == TIPC_NET_MODE) - tipc_core_stop_net(); - *parameter = value; - if (orig_mode == TIPC_NET_MODE) - tipc_core_start_net(); - } - return tipc_cfg_reply_none(); } @@ -405,10 +385,16 @@ static struct sk_buff *cfg_set_max_zones(void) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); value = *(u32 *)TLV_DATA(req_tlv_area); value = ntohl(value); + if (value == tipc_max_zones) + return tipc_cfg_reply_none(); if (value != delimit(value, 1, 255)) return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE " (max zones must be 1-255)"); - return set_net_max(value, &tipc_max_zones); + if (tipc_mode == TIPC_NET_MODE) + return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED + " (cannot change max zones once TIPC has joined a network)"); + tipc_max_zones = value; + return tipc_cfg_reply_none(); } static struct sk_buff *cfg_set_max_clusters(void) @@ -419,8 +405,8 @@ static struct sk_buff *cfg_set_max_clusters(void) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); value = *(u32 *)TLV_DATA(req_tlv_area); value = ntohl(value); - if (value != 1) - return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED + if (value != delimit(value, 1, 1)) + return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE " (max clusters fixed at 1)"); return tipc_cfg_reply_none(); } @@ -433,10 +419,16 @@ static struct sk_buff *cfg_set_max_nodes(void) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); value = *(u32 *)TLV_DATA(req_tlv_area); value = ntohl(value); + if (value == tipc_max_nodes) + return tipc_cfg_reply_none(); if (value != delimit(value, 8, 2047)) return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE " (max nodes must be 8-2047)"); - return set_net_max(value, &tipc_max_nodes); + if (tipc_mode == TIPC_NET_MODE) + return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED + " (cannot change max nodes once TIPC has joined a network)"); + tipc_max_nodes = value; + return tipc_cfg_reply_none(); } static struct sk_buff *cfg_set_max_slaves(void) @@ -461,15 +453,16 @@ static struct sk_buff *cfg_set_netid(void) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); value = *(u32 *)TLV_DATA(req_tlv_area); value = ntohl(value); + if (value == tipc_net_id) + return tipc_cfg_reply_none(); if (value != delimit(value, 1, 9999)) return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE " (network id must be 1-9999)"); - - if (tipc_own_addr) + if (tipc_mode == TIPC_NET_MODE) return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED - " (cannot change network id once part of network)"); - - return set_net_max(value, &tipc_net_id); + " (cannot change network id once TIPC has joined a network)"); + tipc_net_id = value; + return tipc_cfg_reply_none(); } struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area, -- cgit v1.2.3 From f131072c3da84e70a0f65d71b3a3f6611c6a22bc Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:51:37 -0700 Subject: [TIPC]: First phase of assert() cleanup This also contains enhancements to simplify comparisons in name table publication removal algorithm and to simplify name table sanity checking when shutting down TIPC. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/link.c | 13 ++-- net/tipc/name_distr.c | 20 +++++- net/tipc/name_table.c | 179 ++++++++++++++++++++++++++----------------------- net/tipc/node.c | 3 +- net/tipc/node_subscr.c | 15 +++-- net/tipc/port.c | 1 - net/tipc/ref.c | 31 +++++++-- 7 files changed, 153 insertions(+), 109 deletions(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index ff40c9195fe..2efced5a673 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -574,7 +574,6 @@ void tipc_link_wakeup_ports(struct link *l_ptr, int all) break; list_del_init(&p_ptr->wait_list); p_ptr->congested_link = NULL; - assert(p_ptr->wakeup); spin_lock_bh(p_ptr->publ.lock); p_ptr->publ.congested = 0; p_ptr->wakeup(&p_ptr->publ); @@ -1246,8 +1245,6 @@ int tipc_link_send_sections_fast(struct port *sender, int res; u32 selector = msg_origport(hdr) & 1; - assert(destaddr != tipc_own_addr); - again: /* * Try building message using port's max_pkt hint. @@ -2310,7 +2307,6 @@ void tipc_link_tunnel(struct link *l_ptr, memcpy(buf->data + INT_H_SIZE, (unchar *)msg, length); dbg("%c->%c:", l_ptr->b_ptr->net_plane, tunnel->b_ptr->net_plane); msg_dbg(buf_msg(buf), ">SEND>"); - assert(tunnel); tipc_link_send_buf(tunnel, buf); } @@ -2339,10 +2335,10 @@ void tipc_link_changeover(struct link *l_ptr) ORIGINAL_MSG, TIPC_OK, INT_H_SIZE, l_ptr->addr); msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id); msg_set_msgcnt(&tunnel_hdr, msgcount); + if (!l_ptr->first_out) { struct sk_buff *buf; - assert(!msgcount); buf = buf_acquire(INT_H_SIZE); if (buf) { memcpy(buf->data, (unchar *)&tunnel_hdr, INT_H_SIZE); @@ -2356,6 +2352,7 @@ void tipc_link_changeover(struct link *l_ptr) } return; } + while (crs) { struct tipc_msg *msg = buf_msg(crs); @@ -2455,11 +2452,15 @@ static int link_recv_changeover_msg(struct link **l_ptr, u32 msg_count = msg_msgcnt(tunnel_msg); dest_link = (*l_ptr)->owner->links[msg_bearer_id(tunnel_msg)]; - assert(dest_link != *l_ptr); if (!dest_link) { msg_dbg(tunnel_msg, "NOLINK/\n", + (*l_ptr)->name); + goto exit; + } dbg("%c<-%c:", dest_link->b_ptr->net_plane, (*l_ptr)->b_ptr->net_plane); *l_ptr = dest_link; diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c index a3bbc891f95..5718ecb91d3 100644 --- a/net/tipc/name_distr.c +++ b/net/tipc/name_distr.c @@ -174,7 +174,6 @@ void tipc_named_node_up(unsigned long node) u32 rest; u32 max_item_buf; - assert(in_own_cluster(node)); read_lock_bh(&tipc_nametbl_lock); max_item_buf = TIPC_MAX_USER_MSG_SIZE / ITEM_SIZE; max_item_buf *= ITEM_SIZE; @@ -221,15 +220,24 @@ exit: static void node_is_down(struct publication *publ) { struct publication *p; + write_lock_bh(&tipc_nametbl_lock); dbg("node_is_down: withdrawing %u, %u, %u\n", publ->type, publ->lower, publ->upper); publ->key += 1222345; p = tipc_nametbl_remove_publ(publ->type, publ->lower, publ->node, publ->ref, publ->key); - assert(p == publ); write_unlock_bh(&tipc_nametbl_lock); - kfree(publ); + + if (p != publ) { + err("Unable to remove publication from failed node\n" + "(type=%u, lower=%u, node=0x%x, ref=%u, key=%u)\n", + publ->type, publ->lower, publ->node, publ->ref, publ->key); + } + + if (p) { + kfree(p); + } } /** @@ -275,6 +283,12 @@ void tipc_named_recv(struct sk_buff *buf) if (publ) { tipc_nodesub_unsubscribe(&publ->subscr); kfree(publ); + } else { + err("Unable to remove publication by node 0x%x\n" + "(type=%u, lower=%u, ref=%u, key=%u)\n", + msg_orignode(msg), + ntohl(item->type), ntohl(item->lower), + ntohl(item->ref), ntohl(item->key)); } } else { warn("tipc_named_recv: unknown msg\n"); diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 051143648ed..e90dc80cd74 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -71,7 +71,7 @@ struct sub_seq { * @sseq: pointer to dynamically-sized array of sub-sequences of this 'type'; * sub-sequences are sorted in ascending order * @alloc: number of sub-sequences currently in array - * @first_free: upper bound of highest sub-sequence + 1 + * @first_free: array index of first unused sub-sequence entry * @ns_list: links to adjacent name sequences in hash chain * @subscriptions: list of subscriptions for this 'type' * @lock: spinlock controlling access to name sequence structure @@ -175,7 +175,7 @@ static struct name_seq *tipc_nameseq_create(u32 type, struct hlist_head *seq_hea nseq->lock = SPIN_LOCK_UNLOCKED; nseq->type = type; nseq->sseqs = sseq; - dbg("tipc_nameseq_create() nseq = %x type %u, ssseqs %x, ff: %u\n", + dbg("tipc_nameseq_create(): nseq = %p, type %u, ssseqs %p, ff: %u\n", nseq, type, nseq->sseqs, nseq->first_free); nseq->alloc = 1; INIT_HLIST_NODE(&nseq->ns_list); @@ -253,16 +253,16 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, struct sub_seq *sseq; int created_subseq = 0; - assert(nseq->first_free <= nseq->alloc); sseq = nameseq_find_subseq(nseq, lower); - dbg("nameseq_ins: for seq %x,<%u,%u>, found sseq %x\n", + dbg("nameseq_ins: for seq %p, {%u,%u}, found sseq %p\n", nseq, type, lower, sseq); if (sseq) { /* Lower end overlaps existing entry => need an exact match */ if ((sseq->lower != lower) || (sseq->upper != upper)) { - warn("Overlapping publ <%u,%u,%u>\n", type, lower, upper); + warn("Cannot publish {%u,%u,%u}, overlap error\n", + type, lower, upper); return NULL; } } else { @@ -277,7 +277,8 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, if ((inspos < nseq->first_free) && (upper >= nseq->sseqs[inspos].lower)) { - warn("Overlapping publ <%u,%u,%u>\n", type, lower, upper); + warn("Cannot publish {%u,%u,%u}, overlap error\n", + type, lower, upper); return NULL; } @@ -287,7 +288,8 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, struct sub_seq *sseqs = tipc_subseq_alloc(nseq->alloc * 2); if (!sseqs) { - warn("Memory squeeze; failed to create sub-sequence\n"); + warn("Cannot publish {%u,%u,%u}, no memory\n", + type, lower, upper); return NULL; } dbg("Allocated %u more sseqs\n", nseq->alloc); @@ -311,7 +313,7 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, sseq->upper = upper; created_subseq = 1; } - dbg("inserting (%u %u %u) from %x:%u into sseq %x(%u,%u) of seq %x\n", + dbg("inserting {%u,%u,%u} from <0x%x:%u> into sseq %p(%u,%u) of seq %p\n", type, lower, upper, node, port, sseq, sseq->lower, sseq->upper, nseq); @@ -320,7 +322,7 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, publ = publ_create(type, lower, upper, scope, node, port, key); if (!publ) return NULL; - dbg("inserting publ %x, node=%x publ->node=%x, subscr->node=%x\n", + dbg("inserting publ %p, node=0x%x publ->node=0x%x, subscr->node=%p\n", publ, node, publ->node, publ->subscr.node); if (!sseq->zone_list) @@ -367,45 +369,47 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq, /** * tipc_nameseq_remove_publ - + * + * NOTE: There may be cases where TIPC is asked to remove a publication + * that is not in the name table. For example, if another node issues a + * publication for a name sequence that overlaps an existing name sequence + * the publication will not be recorded, which means the publication won't + * be found when the name sequence is later withdrawn by that node. + * A failed withdraw request simply returns a failure indication and lets the + * caller issue any error or warning messages associated with such a problem. */ static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 inst, u32 node, u32 ref, u32 key) { struct publication *publ; + struct publication *curr; struct publication *prev; struct sub_seq *sseq = nameseq_find_subseq(nseq, inst); struct sub_seq *free; struct subscription *s, *st; int removed_subseq = 0; - assert(nseq); - - if (!sseq) { - int i; - - warn("Withdraw unknown <%u,%u>?\n", nseq->type, inst); - assert(nseq->sseqs); - dbg("Dumping subseqs %x for %x, alloc = %u,ff=%u\n", - nseq->sseqs, nseq, nseq->alloc, - nseq->first_free); - for (i = 0; i < nseq->first_free; i++) { - dbg("Subseq %u(%x): lower = %u,upper = %u\n", - i, &nseq->sseqs[i], nseq->sseqs[i].lower, - nseq->sseqs[i].upper); - } + if (!sseq) return NULL; - } - dbg("nameseq_remove: seq: %x, sseq %x, <%u,%u> key %u\n", + + dbg("tipc_nameseq_remove_publ: seq: %p, sseq %p, {%u,%u}, key %u\n", nseq, sseq, nseq->type, inst, key); + /* Remove publication from zone scope list */ + prev = sseq->zone_list; publ = sseq->zone_list->zone_list_next; while ((publ->key != key) || (publ->ref != ref) || (publ->node && (publ->node != node))) { prev = publ; publ = publ->zone_list_next; - assert(prev != sseq->zone_list); + if (prev == sseq->zone_list) { + + /* Prevent endless loop if publication not found */ + + return NULL; + } } if (publ != sseq->zone_list) prev->zone_list_next = publ->zone_list_next; @@ -416,14 +420,24 @@ static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 i sseq->zone_list = NULL; } + /* Remove publication from cluster scope list, if present */ + if (in_own_cluster(node)) { prev = sseq->cluster_list; - publ = sseq->cluster_list->cluster_list_next; - while ((publ->key != key) || (publ->ref != ref) || - (publ->node && (publ->node != node))) { - prev = publ; - publ = publ->cluster_list_next; - assert(prev != sseq->cluster_list); + curr = sseq->cluster_list->cluster_list_next; + while (curr != publ) { + prev = curr; + curr = curr->cluster_list_next; + if (prev == sseq->cluster_list) { + + /* Prevent endless loop for malformed list */ + + err("Unable to de-list cluster publication\n" + "{%u%u}, node=0x%x, ref=%u, key=%u)\n", + publ->type, publ->lower, publ->node, + publ->ref, publ->key); + goto end_cluster; + } } if (publ != sseq->cluster_list) prev->cluster_list_next = publ->cluster_list_next; @@ -434,15 +448,26 @@ static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 i sseq->cluster_list = NULL; } } +end_cluster: + + /* Remove publication from node scope list, if present */ if (node == tipc_own_addr) { prev = sseq->node_list; - publ = sseq->node_list->node_list_next; - while ((publ->key != key) || (publ->ref != ref) || - (publ->node && (publ->node != node))) { - prev = publ; - publ = publ->node_list_next; - assert(prev != sseq->node_list); + curr = sseq->node_list->node_list_next; + while (curr != publ) { + prev = curr; + curr = curr->node_list_next; + if (prev == sseq->node_list) { + + /* Prevent endless loop for malformed list */ + + err("Unable to de-list node publication\n" + "{%u%u}, node=0x%x, ref=%u, key=%u)\n", + publ->type, publ->lower, publ->node, + publ->ref, publ->key); + goto end_node; + } } if (publ != sseq->node_list) prev->node_list_next = publ->node_list_next; @@ -453,22 +478,18 @@ static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 i sseq->node_list = NULL; } } - assert(!publ->node || (publ->node == node)); - assert(publ->ref == ref); - assert(publ->key == key); +end_node: - /* - * Contract subseq list if no more publications: - */ - if (!sseq->node_list && !sseq->cluster_list && !sseq->zone_list) { + /* Contract subseq list if no more publications for that subseq */ + + if (!sseq->zone_list) { free = &nseq->sseqs[nseq->first_free--]; memmove(sseq, sseq + 1, (free - (sseq + 1)) * sizeof (*sseq)); removed_subseq = 1; } - /* - * Any subscriptions waiting ? - */ + /* Notify any waiting subscriptions */ + list_for_each_entry_safe(s, st, &nseq->subscriptions, nameseq_list) { tipc_subscr_report_overlap(s, publ->lower, @@ -478,6 +499,7 @@ static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 i publ->node, removed_subseq); } + return publ; } @@ -530,7 +552,7 @@ static struct name_seq *nametbl_find_seq(u32 type) seq_head = &table.types[hash(type)]; hlist_for_each_entry(ns, seq_node, seq_head, ns_list) { if (ns->type == type) { - dbg("found %x\n", ns); + dbg("found %p\n", ns); return ns; } } @@ -543,22 +565,21 @@ struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper, { struct name_seq *seq = nametbl_find_seq(type); - dbg("ins_publ: <%u,%x,%x> found %x\n", type, lower, upper, seq); + dbg("tipc_nametbl_insert_publ: {%u,%u,%u} found %p\n", type, lower, upper, seq); if (lower > upper) { - warn("Failed to publish illegal <%u,%u,%u>\n", + warn("Failed to publish illegal {%u,%u,%u}\n", type, lower, upper); return NULL; } - dbg("Publishing <%u,%u,%u> from %x\n", type, lower, upper, node); + dbg("Publishing {%u,%u,%u} from 0x%x\n", type, lower, upper, node); if (!seq) { seq = tipc_nameseq_create(type, &table.types[hash(type)]); - dbg("tipc_nametbl_insert_publ: created %x\n", seq); + dbg("tipc_nametbl_insert_publ: created %p\n", seq); } if (!seq) return NULL; - assert(seq->type == type); return tipc_nameseq_insert_publ(seq, type, lower, upper, scope, node, port, key); } @@ -572,7 +593,7 @@ struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower, if (!seq) return NULL; - dbg("Withdrawing <%u,%u> from %x\n", type, lower, node); + dbg("Withdrawing {%u,%u} from 0x%x\n", type, lower, node); publ = tipc_nameseq_remove_publ(seq, lower, node, ref, key); if (!seq->first_free && list_empty(&seq->subscriptions)) { @@ -743,7 +764,7 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper, return NULL; } if ((type < TIPC_RESERVED_TYPES) && !atomic_read(&rsv_publ_ok)) { - warn("Failed to publish reserved name <%u,%u,%u>\n", + warn("Publication failed, reserved name {%u,%u,%u}\n", type, lower, upper); return NULL; } @@ -767,10 +788,10 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key) { struct publication *publ; - dbg("tipc_nametbl_withdraw:<%d,%d,%d>\n", type, lower, key); + dbg("tipc_nametbl_withdraw: {%u,%u}, key=%u\n", type, lower, key); write_lock_bh(&tipc_nametbl_lock); publ = tipc_nametbl_remove_publ(type, lower, tipc_own_addr, ref, key); - if (publ) { + if (likely(publ)) { table.local_publ_count--; if (publ->scope != TIPC_NODE_SCOPE) tipc_named_withdraw(publ); @@ -780,6 +801,9 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key) return 1; } write_unlock_bh(&tipc_nametbl_lock); + err("Unable to remove local publication\n" + "(type=%u, lower=%u, ref=%u, key=%u)\n", + type, lower, ref, key); return 0; } @@ -787,8 +811,7 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key) * tipc_nametbl_subscribe - add a subscription object to the name table */ -void -tipc_nametbl_subscribe(struct subscription *s) +void tipc_nametbl_subscribe(struct subscription *s) { u32 type = s->seq.type; struct name_seq *seq; @@ -800,11 +823,13 @@ tipc_nametbl_subscribe(struct subscription *s) } if (seq){ spin_lock_bh(&seq->lock); - dbg("tipc_nametbl_subscribe:found %x for <%u,%u,%u>\n", + dbg("tipc_nametbl_subscribe:found %p for {%u,%u,%u}\n", seq, type, s->seq.lower, s->seq.upper); - assert(seq->type == type); tipc_nameseq_subscribe(seq, s); spin_unlock_bh(&seq->lock); + } else { + warn("Failed to create subscription for {%u,%u,%u}\n", + s->seq.type, s->seq.lower, s->seq.upper); } write_unlock_bh(&tipc_nametbl_lock); } @@ -813,8 +838,7 @@ tipc_nametbl_subscribe(struct subscription *s) * tipc_nametbl_unsubscribe - remove a subscription object from name table */ -void -tipc_nametbl_unsubscribe(struct subscription *s) +void tipc_nametbl_unsubscribe(struct subscription *s) { struct name_seq *seq; @@ -1049,35 +1073,20 @@ int tipc_nametbl_init(void) void tipc_nametbl_stop(void) { - struct hlist_head *seq_head; - struct hlist_node *seq_node; - struct hlist_node *tmp; - struct name_seq *seq; u32 i; if (!table.types) return; + /* Verify name table is empty, then release it */ + write_lock_bh(&tipc_nametbl_lock); for (i = 0; i < tipc_nametbl_size; i++) { - seq_head = &table.types[i]; - hlist_for_each_entry_safe(seq, seq_node, tmp, seq_head, ns_list) { - struct sub_seq *sseq = seq->sseqs; - - for (; sseq != &seq->sseqs[seq->first_free]; sseq++) { - struct publication *publ = sseq->zone_list; - assert(publ); - do { - struct publication *next = - publ->zone_list_next; - kfree(publ); - publ = next; - } - while (publ != sseq->zone_list); - } - } + if (!hlist_empty(&table.types[i])) + err("tipc_nametbl_stop(): hash chain %u is non-null\n", i); } kfree(table.types); table.types = NULL; write_unlock_bh(&tipc_nametbl_lock); } + diff --git a/net/tipc/node.c b/net/tipc/node.c index 0d5db06e203..b54462bd98d 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -234,7 +234,6 @@ struct node *tipc_node_attach_link(struct link *l_ptr) u32 bearer_id = l_ptr->b_ptr->identity; char addr_string[16]; - assert(bearer_id < MAX_BEARERS); if (n_ptr->link_cnt >= 2) { char addr_string[16]; @@ -314,7 +313,7 @@ static void node_established_contact(struct node *n_ptr) struct cluster *c_ptr; dbg("node_established_contact:-> %x\n", n_ptr->addr); - if (!tipc_node_has_active_routes(n_ptr)) { + if (!tipc_node_has_active_routes(n_ptr) && in_own_cluster(n_ptr->addr)) { tipc_k_signal((Handler)tipc_named_node_up, n_ptr->addr); } diff --git a/net/tipc/node_subscr.c b/net/tipc/node_subscr.c index cff4068cc75..cc3fff3dec4 100644 --- a/net/tipc/node_subscr.c +++ b/net/tipc/node_subscr.c @@ -47,18 +47,19 @@ void tipc_nodesub_subscribe(struct node_subscr *node_sub, u32 addr, void *usr_handle, net_ev_handler handle_down) { - node_sub->node = NULL; - if (addr == tipc_own_addr) + if (addr == tipc_own_addr) { + node_sub->node = NULL; return; - if (!tipc_addr_node_valid(addr)) { - warn("node_subscr with illegal %x\n", addr); + } + + node_sub->node = tipc_node_find(addr); + if (!node_sub->node) { + warn("Node subscription rejected, unknown node 0x%x\n", addr); return; } - node_sub->handle_node_down = handle_down; node_sub->usr_handle = usr_handle; - node_sub->node = tipc_node_find(addr); - assert(node_sub->node); + tipc_node_lock(node_sub->node); list_add_tail(&node_sub->nodesub_list, &node_sub->node->nsub); tipc_node_unlock(node_sub->node); diff --git a/net/tipc/port.c b/net/tipc/port.c index 99846a18d94..3aab67a5664 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -168,7 +168,6 @@ void tipc_port_recv_mcast(struct sk_buff *buf, struct port_list *dp) struct port_list *item = dp; int cnt = 0; - assert(buf); msg = buf_msg(buf); /* Create destination port list, if one wasn't supplied */ diff --git a/net/tipc/ref.c b/net/tipc/ref.c index 33bbf509509..d2f0cce10e2 100644 --- a/net/tipc/ref.c +++ b/net/tipc/ref.c @@ -127,7 +127,14 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock) u32 next_plus_upper; u32 reference = 0; - assert(tipc_ref_table.entries && object); + if (!object) { + err("Attempt to acquire reference to non-existent object\n"); + return 0; + } + if (!tipc_ref_table.entries) { + err("Reference table not found during acquisition attempt\n"); + return 0; + } write_lock_bh(&ref_table_lock); if (tipc_ref_table.first_free) { @@ -162,15 +169,28 @@ void tipc_ref_discard(u32 ref) u32 index; u32 index_mask; - assert(tipc_ref_table.entries); - assert(ref != 0); + if (!ref) { + err("Attempt to discard reference 0\n"); + return; + } + if (!tipc_ref_table.entries) { + err("Reference table not found during discard attempt\n"); + return; + } write_lock_bh(&ref_table_lock); index_mask = tipc_ref_table.index_mask; index = ref & index_mask; entry = &(tipc_ref_table.entries[index]); - assert(entry->object != 0); - assert(entry->data.reference == ref); + + if (!entry->object) { + err("Attempt to discard reference to non-existent object\n"); + goto exit; + } + if (entry->data.reference != ref) { + err("Attempt to discard non-existent reference\n"); + goto exit; + } /* mark entry as unused */ entry->object = NULL; @@ -184,6 +204,7 @@ void tipc_ref_discard(u32 ref) /* increment upper bits of entry to invalidate subsequent references */ entry->data.next_plus_upper = (ref & ~index_mask) + (index_mask + 1); +exit: write_unlock_bh(&ref_table_lock); } -- cgit v1.2.3 From a10bd924a421e0e5d5bb9640735b9317b8e473b5 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:52:17 -0700 Subject: [TIPC]: Enhanced & cleaned up system messages; fixed 2 obscure memory leaks. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/bcast.c | 2 +- net/tipc/bcast.h | 2 +- net/tipc/bearer.c | 70 ++++++++++++++++++++++++++++----------------------- net/tipc/cluster.c | 22 +++++++++------- net/tipc/config.c | 2 +- net/tipc/discover.c | 7 ++---- net/tipc/link.c | 39 +++++++++++++++------------- net/tipc/name_distr.c | 10 ++++---- net/tipc/name_table.c | 6 ++--- net/tipc/node.c | 68 ++++++++++++++++++++++++++----------------------- net/tipc/port.c | 10 ++++---- net/tipc/subscr.c | 18 ++++++------- net/tipc/zone.c | 19 ++++++++------ 13 files changed, 149 insertions(+), 126 deletions(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 44645f56377..1633ef201df 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -785,7 +785,7 @@ int tipc_bclink_init(void) bclink = kmalloc(sizeof(*bclink), GFP_ATOMIC); if (!bcbearer || !bclink) { nomem: - warn("Memory squeeze; Failed to create multicast link\n"); + warn("Multicast link creation failed, no memory\n"); kfree(bcbearer); bcbearer = NULL; kfree(bclink); diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h index 0e3be2ab330..b243d9d495f 100644 --- a/net/tipc/bcast.h +++ b/net/tipc/bcast.h @@ -180,7 +180,7 @@ static inline void tipc_port_list_add(struct port_list *pl_ptr, u32 port) if (!item->next) { item->next = kmalloc(sizeof(*item), GFP_ATOMIC); if (!item->next) { - warn("Memory squeeze: multicast destination port list is incomplete\n"); + warn("Incomplete multicast delivery, no memory\n"); return; } item->next->next = NULL; diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index e213a8e5485..4fa24b5e891 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -112,39 +112,42 @@ int tipc_register_media(u32 media_type, goto exit; if (!media_name_valid(name)) { - warn("Media registration error: illegal name <%s>\n", name); + warn("Media <%s> rejected, illegal name\n", name); goto exit; } if (!bcast_addr) { - warn("Media registration error: no broadcast address supplied\n"); + warn("Media <%s> rejected, no broadcast address\n", name); goto exit; } if ((bearer_priority < TIPC_MIN_LINK_PRI) && (bearer_priority > TIPC_MAX_LINK_PRI)) { - warn("Media registration error: priority %u\n", bearer_priority); + warn("Media <%s> rejected, illegal priority (%u)\n", name, + bearer_priority); goto exit; } if ((link_tolerance < TIPC_MIN_LINK_TOL) || (link_tolerance > TIPC_MAX_LINK_TOL)) { - warn("Media registration error: tolerance %u\n", link_tolerance); + warn("Media <%s> rejected, illegal tolerance (%u)\n", name, + link_tolerance); goto exit; } media_id = media_count++; if (media_id >= MAX_MEDIA) { - warn("Attempt to register more than %u media\n", MAX_MEDIA); + warn("Media <%s> rejected, media limit reached (%u)\n", name, + MAX_MEDIA); media_count--; goto exit; } for (i = 0; i < media_id; i++) { if (media_list[i].type_id == media_type) { - warn("Attempt to register second media with type %u\n", + warn("Media <%s> rejected, duplicate type (%u)\n", name, media_type); media_count--; goto exit; } if (!strcmp(name, media_list[i].name)) { - warn("Attempt to re-register media name <%s>\n", name); + warn("Media <%s> rejected, duplicate name\n", name); media_count--; goto exit; } @@ -283,6 +286,9 @@ static struct bearer *bearer_find(const char *name) struct bearer *b_ptr; u32 i; + if (tipc_mode != TIPC_NET_MODE) + return NULL; + for (i = 0, b_ptr = tipc_bearers; i < MAX_BEARERS; i++, b_ptr++) { if (b_ptr->active && (!strcmp(b_ptr->publ.name, name))) return b_ptr; @@ -475,26 +481,33 @@ int tipc_enable_bearer(const char *name, u32 bcast_scope, u32 priority) u32 i; int res = -EINVAL; - if (tipc_mode != TIPC_NET_MODE) + if (tipc_mode != TIPC_NET_MODE) { + warn("Bearer <%s> rejected, not supported in standalone mode\n", + name); return -ENOPROTOOPT; - - if (!bearer_name_validate(name, &b_name) || - !tipc_addr_domain_valid(bcast_scope) || - !in_scope(bcast_scope, tipc_own_addr)) + } + if (!bearer_name_validate(name, &b_name)) { + warn("Bearer <%s> rejected, illegal name\n", name); return -EINVAL; - + } + if (!tipc_addr_domain_valid(bcast_scope) || + !in_scope(bcast_scope, tipc_own_addr)) { + warn("Bearer <%s> rejected, illegal broadcast scope\n", name); + return -EINVAL; + } if ((priority < TIPC_MIN_LINK_PRI || priority > TIPC_MAX_LINK_PRI) && - (priority != TIPC_MEDIA_LINK_PRI)) + (priority != TIPC_MEDIA_LINK_PRI)) { + warn("Bearer <%s> rejected, illegal priority\n", name); return -EINVAL; + } write_lock_bh(&tipc_net_lock); - if (!tipc_bearers) - goto failed; m_ptr = media_find(b_name.media_name); if (!m_ptr) { - warn("No media <%s>\n", b_name.media_name); + warn("Bearer <%s> rejected, media <%s> not registered\n", name, + b_name.media_name); goto failed; } @@ -510,23 +523,24 @@ restart: continue; } if (!strcmp(name, tipc_bearers[i].publ.name)) { - warn("Bearer <%s> already enabled\n", name); + warn("Bearer <%s> rejected, already enabled\n", name); goto failed; } if ((tipc_bearers[i].priority == priority) && (++with_this_prio > 2)) { if (priority-- == 0) { - warn("Third bearer <%s> with priority %u, unable to lower to %u\n", - name, priority + 1, priority); + warn("Bearer <%s> rejected, duplicate priority\n", + name); goto failed; } - warn("Third bearer <%s> with priority %u, lowering to %u\n", + warn("Bearer <%s> priority adjustment required %u->%u\n", name, priority + 1, priority); goto restart; } } if (bearer_id >= MAX_BEARERS) { - warn("Attempt to enable more than %d bearers\n", MAX_BEARERS); + warn("Bearer <%s> rejected, bearer limit reached (%u)\n", + name, MAX_BEARERS); goto failed; } @@ -536,7 +550,7 @@ restart: strcpy(b_ptr->publ.name, name); res = m_ptr->enable_bearer(&b_ptr->publ); if (res) { - warn("Failed to enable bearer <%s>\n", name); + warn("Bearer <%s> rejected, enable failure (%d)\n", name, -res); goto failed; } @@ -573,9 +587,6 @@ int tipc_block_bearer(const char *name) struct link *l_ptr; struct link *temp_l_ptr; - if (tipc_mode != TIPC_NET_MODE) - return -ENOPROTOOPT; - read_lock_bh(&tipc_net_lock); b_ptr = bearer_find(name); if (!b_ptr) { @@ -584,6 +595,7 @@ int tipc_block_bearer(const char *name) return -EINVAL; } + info("Blocking bearer <%s>\n", name); spin_lock_bh(&b_ptr->publ.lock); b_ptr->publ.blocked = 1; list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) { @@ -595,7 +607,6 @@ int tipc_block_bearer(const char *name) } spin_unlock_bh(&b_ptr->publ.lock); read_unlock_bh(&tipc_net_lock); - info("Blocked bearer <%s>\n", name); return TIPC_OK; } @@ -611,15 +622,13 @@ static int bearer_disable(const char *name) struct link *l_ptr; struct link *temp_l_ptr; - if (tipc_mode != TIPC_NET_MODE) - return -ENOPROTOOPT; - b_ptr = bearer_find(name); if (!b_ptr) { warn("Attempt to disable unknown bearer <%s>\n", name); return -EINVAL; } + info("Disabling bearer <%s>\n", name); tipc_disc_stop_link_req(b_ptr->link_req); spin_lock_bh(&b_ptr->publ.lock); b_ptr->link_req = NULL; @@ -635,7 +644,6 @@ static int bearer_disable(const char *name) tipc_link_delete(l_ptr); } spin_unlock_bh(&b_ptr->publ.lock); - info("Disabled bearer <%s>\n", name); memset(b_ptr, 0, sizeof(struct bearer)); return TIPC_OK; } diff --git a/net/tipc/cluster.c b/net/tipc/cluster.c index 1aed81584e9..1dcb6940e33 100644 --- a/net/tipc/cluster.c +++ b/net/tipc/cluster.c @@ -60,8 +60,10 @@ struct cluster *tipc_cltr_create(u32 addr) int alloc; c_ptr = (struct cluster *)kmalloc(sizeof(*c_ptr), GFP_ATOMIC); - if (c_ptr == NULL) + if (c_ptr == NULL) { + warn("Cluster creation failure, no memory\n"); return NULL; + } memset(c_ptr, 0, sizeof(*c_ptr)); c_ptr->addr = tipc_addr(tipc_zone(addr), tipc_cluster(addr), 0); @@ -70,30 +72,32 @@ struct cluster *tipc_cltr_create(u32 addr) else max_nodes = tipc_max_nodes + 1; alloc = sizeof(void *) * (max_nodes + 1); + c_ptr->nodes = (struct node **)kmalloc(alloc, GFP_ATOMIC); if (c_ptr->nodes == NULL) { + warn("Cluster creation failure, no memory for node area\n"); kfree(c_ptr); return NULL; } - memset(c_ptr->nodes, 0, alloc); + memset(c_ptr->nodes, 0, alloc); + if (in_own_cluster(addr)) tipc_local_nodes = c_ptr->nodes; c_ptr->highest_slave = LOWEST_SLAVE - 1; c_ptr->highest_node = 0; z_ptr = tipc_zone_find(tipc_zone(addr)); - if (z_ptr == NULL) { + if (!z_ptr) { z_ptr = tipc_zone_create(addr); } - if (z_ptr != NULL) { - tipc_zone_attach_cluster(z_ptr, c_ptr); - c_ptr->owner = z_ptr; - } - else { + if (!z_ptr) { + kfree(c_ptr->nodes); kfree(c_ptr); - c_ptr = NULL; + return NULL; } + tipc_zone_attach_cluster(z_ptr, c_ptr); + c_ptr->owner = z_ptr; return c_ptr; } diff --git a/net/tipc/config.c b/net/tipc/config.c index 41c8447276f..3ec502fac8c 100644 --- a/net/tipc/config.c +++ b/net/tipc/config.c @@ -642,7 +642,7 @@ static void cfg_named_msg_event(void *userdata, if ((size < sizeof(*req_hdr)) || (size != TCM_ALIGN(ntohl(req_hdr->tcm_len))) || (ntohs(req_hdr->tcm_flags) != TCM_F_REQUEST)) { - warn("discarded invalid configuration message\n"); + warn("Invalid configuration message discarded\n"); return; } diff --git a/net/tipc/discover.c b/net/tipc/discover.c index 92601385e5f..ee9b4484d85 100644 --- a/net/tipc/discover.c +++ b/net/tipc/discover.c @@ -176,7 +176,6 @@ void tipc_disc_recv_msg(struct sk_buff *buf) n_ptr = tipc_node_create(orig); } if (n_ptr == NULL) { - warn("Memory squeeze; Failed to create node\n"); return; } spin_lock_bh(&n_ptr->lock); @@ -191,10 +190,8 @@ void tipc_disc_recv_msg(struct sk_buff *buf) } addr = &link->media_addr; if (memcmp(addr, &media_addr, sizeof(*addr))) { - char addr_string[16]; - - warn("New bearer address for %s\n", - addr_string_fill(addr_string, orig)); + warn("Resetting link <%s>, peer interface address changed\n", + link->name); memcpy(addr, &media_addr, sizeof(*addr)); tipc_link_reset(link); } diff --git a/net/tipc/link.c b/net/tipc/link.c index 2efced5a673..d7668b8abb2 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -419,7 +419,7 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer, l_ptr = (struct link *)kmalloc(sizeof(*l_ptr), GFP_ATOMIC); if (!l_ptr) { - warn("Memory squeeze; Failed to create link\n"); + warn("Link creation failed, no memory\n"); return NULL; } memset(l_ptr, 0, sizeof(*l_ptr)); @@ -469,7 +469,7 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer, if (!pb) { kfree(l_ptr); - warn("Memory squeeze; Failed to create link\n"); + warn("Link creation failed, no memory for print buffer\n"); return NULL; } tipc_printbuf_init(&l_ptr->print_buf, pb, LINK_LOG_BUF_SIZE); @@ -819,6 +819,8 @@ static void link_state_event(struct link *l_ptr, unsigned event) break; case RESET_MSG: dbg_link("RES -> RR\n"); + info("Resetting link <%s>, requested by peer\n", + l_ptr->name); tipc_link_reset(l_ptr); l_ptr->state = RESET_RESET; l_ptr->fsm_msg_cnt = 0; @@ -843,6 +845,8 @@ static void link_state_event(struct link *l_ptr, unsigned event) break; case RESET_MSG: dbg_link("RES -> RR\n"); + info("Resetting link <%s>, requested by peer " + "while probing\n", l_ptr->name); tipc_link_reset(l_ptr); l_ptr->state = RESET_RESET; l_ptr->fsm_msg_cnt = 0; @@ -874,6 +878,8 @@ static void link_state_event(struct link *l_ptr, unsigned event) } else { /* Link has failed */ dbg_link("-> RU (%u probes unanswered)\n", l_ptr->fsm_msg_cnt); + warn("Resetting link <%s>, peer not responding\n", + l_ptr->name); tipc_link_reset(l_ptr); l_ptr->state = RESET_UNKNOWN; l_ptr->fsm_msg_cnt = 0; @@ -1049,7 +1055,7 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf) msg_dbg(msg, "TIPC: Congestion, throwing away\n"); buf_discard(buf); if (imp > CONN_MANAGER) { - warn("Resetting <%s>, send queue full", l_ptr->name); + warn("Resetting link <%s>, send queue full", l_ptr->name); tipc_link_reset(l_ptr); } return dsz; @@ -2228,7 +2234,7 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) if (msg_linkprio(msg) && (msg_linkprio(msg) != l_ptr->priority)) { - warn("Changing prio <%s>: %u->%u\n", + warn("Resetting link <%s>, priority change %u->%u\n", l_ptr->name, l_ptr->priority, msg_linkprio(msg)); l_ptr->priority = msg_linkprio(msg); tipc_link_reset(l_ptr); /* Enforce change to take effect */ @@ -2348,7 +2354,8 @@ void tipc_link_changeover(struct link *l_ptr) msg_dbg(&tunnel_hdr, "EMPTY>SEND>"); tipc_link_send_buf(tunnel, buf); } else { - warn("Memory squeeze; link changeover failed\n"); + warn("Link changeover error, " + "unable to send changeover msg\n"); } return; } @@ -2398,7 +2405,8 @@ void tipc_link_send_duplicate(struct link *l_ptr, struct link *tunnel) msg_set_size(&tunnel_hdr, length + INT_H_SIZE); outbuf = buf_acquire(length + INT_H_SIZE); if (outbuf == NULL) { - warn("Memory squeeze; buffer duplication failed\n"); + warn("Link changeover error, " + "unable to send duplicate msg\n"); return; } memcpy(outbuf->data, (unchar *)&tunnel_hdr, INT_H_SIZE); @@ -2473,7 +2481,7 @@ static int link_recv_changeover_msg(struct link **l_ptr, } *buf = buf_extract(tunnel_buf,INT_H_SIZE); if (*buf == NULL) { - warn("Memory squeeze; failed to extract msg\n"); + warn("Link changeover error, duplicate msg dropped\n"); goto exit; } msg_dbg(tunnel_msg, "TNL, changeover initiated by peer\n", + dest_link->name); tipc_link_reset(dest_link); dest_link->exp_msg_count = msg_count; if (!msg_count) @@ -2514,7 +2524,7 @@ static int link_recv_changeover_msg(struct link **l_ptr, buf_discard(tunnel_buf); return 1; } else { - warn("Memory squeeze; dropped incoming msg\n"); + warn("Link changeover error, original msg dropped\n"); } } exit: @@ -2536,13 +2546,8 @@ void tipc_link_recv_bundle(struct sk_buff *buf) while (msgcount--) { obuf = buf_extract(buf, pos); if (obuf == NULL) { - char addr_string[16]; - - warn("Buffer allocation failure;\n"); - warn(" incoming message(s) from %s lost\n", - addr_string_fill(addr_string, - msg_orignode(buf_msg(buf)))); - return; + warn("Link unable to unbundle message(s)\n"); + break; }; pos += align(msg_size(buf_msg(obuf))); msg_dbg(buf_msg(obuf), " /"); @@ -2600,7 +2605,7 @@ int tipc_link_send_long_buf(struct link *l_ptr, struct sk_buff *buf) } fragm = buf_acquire(fragm_sz + INT_H_SIZE); if (fragm == NULL) { - warn("Memory squeeze; failed to fragment msg\n"); + warn("Link unable to fragment message\n"); dsz = -ENOMEM; goto exit; } @@ -2715,7 +2720,7 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, set_fragm_size(pbuf,fragm_sz); set_expected_frags(pbuf,exp_fragm_cnt - 1); } else { - warn("Memory squeeze; got no defragmenting buffer\n"); + warn("Link unable to reassemble fragmented message\n"); } buf_discard(fbuf); return 0; diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c index 5718ecb91d3..f0b063bcc2a 100644 --- a/net/tipc/name_distr.c +++ b/net/tipc/name_distr.c @@ -127,7 +127,7 @@ void tipc_named_publish(struct publication *publ) buf = named_prepare_buf(PUBLICATION, ITEM_SIZE, 0); if (!buf) { - warn("Memory squeeze; failed to distribute publication\n"); + warn("Publication distribution failure\n"); return; } @@ -151,7 +151,7 @@ void tipc_named_withdraw(struct publication *publ) buf = named_prepare_buf(WITHDRAWAL, ITEM_SIZE, 0); if (!buf) { - warn("Memory squeeze; failed to distribute withdrawal\n"); + warn("Withdrawl distribution failure\n"); return; } @@ -184,8 +184,8 @@ void tipc_named_node_up(unsigned long node) left = (rest <= max_item_buf) ? rest : max_item_buf; rest -= left; buf = named_prepare_buf(PUBLICATION, left, node); - if (buf == NULL) { - warn("Memory Squeeze; could not send publication\n"); + if (!buf) { + warn("Bulk publication distribution failure\n"); goto exit; } item = (struct distr_item *)msg_data(buf_msg(buf)); @@ -291,7 +291,7 @@ void tipc_named_recv(struct sk_buff *buf) ntohl(item->ref), ntohl(item->key)); } } else { - warn("tipc_named_recv: unknown msg\n"); + warn("Unrecognized name table message received\n"); } item++; } diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index e90dc80cd74..38571306aba 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -120,7 +120,7 @@ static struct publication *publ_create(u32 type, u32 lower, u32 upper, struct publication *publ = (struct publication *)kmalloc(sizeof(*publ), GFP_ATOMIC); if (publ == NULL) { - warn("Memory squeeze; failed to create publication\n"); + warn("Publication creation failure, no memory\n"); return NULL; } @@ -165,7 +165,7 @@ static struct name_seq *tipc_nameseq_create(u32 type, struct hlist_head *seq_hea struct sub_seq *sseq = tipc_subseq_alloc(1); if (!nseq || !sseq) { - warn("Memory squeeze; failed to create name sequence\n"); + warn("Name sequence creation failed, no memory\n"); kfree(nseq); kfree(sseq); return NULL; @@ -759,7 +759,7 @@ struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper, struct publication *publ; if (table.local_publ_count >= tipc_max_publications) { - warn("Failed publish: max %u local publication\n", + warn("Publication failed, local publication limit reached (%u)\n", tipc_max_publications); return NULL; } diff --git a/net/tipc/node.c b/net/tipc/node.c index b54462bd98d..5f097547d3e 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -61,34 +61,37 @@ struct node *tipc_node_create(u32 addr) struct node **curr_node; n_ptr = kmalloc(sizeof(*n_ptr),GFP_ATOMIC); - if (n_ptr != NULL) { - memset(n_ptr, 0, sizeof(*n_ptr)); - n_ptr->addr = addr; - n_ptr->lock = SPIN_LOCK_UNLOCKED; - INIT_LIST_HEAD(&n_ptr->nsub); - - c_ptr = tipc_cltr_find(addr); - if (c_ptr == NULL) - c_ptr = tipc_cltr_create(addr); - if (c_ptr != NULL) { - n_ptr->owner = c_ptr; - tipc_cltr_attach_node(c_ptr, n_ptr); - n_ptr->last_router = -1; - - /* Insert node into ordered list */ - for (curr_node = &tipc_nodes; *curr_node; - curr_node = &(*curr_node)->next) { - if (addr < (*curr_node)->addr) { - n_ptr->next = *curr_node; - break; - } - } - (*curr_node) = n_ptr; - } else { - kfree(n_ptr); - n_ptr = NULL; - } - } + if (!n_ptr) { + warn("Node creation failed, no memory\n"); + return NULL; + } + + c_ptr = tipc_cltr_find(addr); + if (!c_ptr) { + c_ptr = tipc_cltr_create(addr); + } + if (!c_ptr) { + kfree(n_ptr); + return NULL; + } + + memset(n_ptr, 0, sizeof(*n_ptr)); + n_ptr->addr = addr; + n_ptr->lock = SPIN_LOCK_UNLOCKED; + INIT_LIST_HEAD(&n_ptr->nsub); + n_ptr->owner = c_ptr; + tipc_cltr_attach_node(c_ptr, n_ptr); + n_ptr->last_router = -1; + + /* Insert node into ordered list */ + for (curr_node = &tipc_nodes; *curr_node; + curr_node = &(*curr_node)->next) { + if (addr < (*curr_node)->addr) { + n_ptr->next = *curr_node; + break; + } + } + (*curr_node) = n_ptr; return n_ptr; } @@ -132,7 +135,7 @@ void tipc_node_link_up(struct node *n_ptr, struct link *l_ptr) return; } if (l_ptr->priority < active[0]->priority) { - info("Link is standby\n"); + info("New link <%s> becomes standby\n", l_ptr->name); return; } tipc_link_send_duplicate(active[0], l_ptr); @@ -140,8 +143,9 @@ void tipc_node_link_up(struct node *n_ptr, struct link *l_ptr) active[0] = l_ptr; return; } - info("Link <%s> on network plane %c becomes standby\n", - active[0]->name, active[0]->b_ptr->net_plane); + info("Old link <%s> becomes standby\n", active[0]->name); + if (active[1] != active[0]) + info("Old link <%s> becomes standby\n", active[1]->name); active[0] = active[1] = l_ptr; } @@ -248,7 +252,7 @@ struct node *tipc_node_attach_link(struct link *l_ptr) n_ptr->link_cnt++; return n_ptr; } - err("Attempt to establish second link on <%s> to <%s> \n", + err("Attempt to establish second link on <%s> to %s \n", l_ptr->b_ptr->publ.name, addr_string_fill(addr_string, l_ptr->addr)); } diff --git a/net/tipc/port.c b/net/tipc/port.c index 3aab67a5664..47d97404e3e 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -195,7 +195,7 @@ void tipc_port_recv_mcast(struct sk_buff *buf, struct port_list *dp) struct sk_buff *b = skb_clone(buf, GFP_ATOMIC); if (b == NULL) { - warn("Buffer allocation failure\n"); + warn("Unable to deliver multicast message(s)\n"); msg_dbg(msg, "LOST:"); goto exit; } @@ -227,14 +227,14 @@ u32 tipc_createport_raw(void *usr_handle, u32 ref; p_ptr = kmalloc(sizeof(*p_ptr), GFP_ATOMIC); - if (p_ptr == NULL) { - warn("Memory squeeze; failed to create port\n"); + if (!p_ptr) { + warn("Port creation failed, no memory\n"); return 0; } memset(p_ptr, 0, sizeof(*p_ptr)); ref = tipc_ref_acquire(p_ptr, &p_ptr->publ.lock); if (!ref) { - warn("Reference Table Exhausted\n"); + warn("Port creation failed, reference table exhausted\n"); kfree(p_ptr); return 0; } @@ -1059,7 +1059,7 @@ int tipc_createport(u32 user_ref, u32 ref; up_ptr = (struct user_port *)kmalloc(sizeof(*up_ptr), GFP_ATOMIC); - if (up_ptr == NULL) { + if (!up_ptr) { warn("Port creation failed, no memory\n"); return -ENOMEM; } diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index c5f026c7fd3..fc171875660 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -266,7 +266,8 @@ static void subscr_subscribe(struct tipc_subscr *s, /* Refuse subscription if global limit exceeded */ if (atomic_read(&topsrv.subscription_count) >= tipc_max_subscriptions) { - warn("Failed: max %u subscriptions\n", tipc_max_subscriptions); + warn("Subscription rejected, subscription limit reached (%u)\n", + tipc_max_subscriptions); subscr_terminate(subscriber); return; } @@ -274,8 +275,8 @@ static void subscr_subscribe(struct tipc_subscr *s, /* Allocate subscription object */ sub = kmalloc(sizeof(*sub), GFP_ATOMIC); - if (sub == NULL) { - warn("Memory squeeze; ignoring subscription\n"); + if (!sub) { + warn("Subscription rejected, no memory\n"); subscr_terminate(subscriber); return; } @@ -298,8 +299,7 @@ static void subscr_subscribe(struct tipc_subscr *s, if ((((sub->filter != TIPC_SUB_PORTS) && (sub->filter != TIPC_SUB_SERVICE))) || (sub->seq.lower > sub->seq.upper)) { - warn("Rejecting illegal subscription %u,%u,%u\n", - sub->seq.type, sub->seq.lower, sub->seq.upper); + warn("Subscription rejected, illegal request\n"); kfree(sub); subscr_terminate(subscriber); return; @@ -387,7 +387,7 @@ static void subscr_named_msg_event(void *usr_handle, dbg("subscr_named_msg_event: orig = %x own = %x,\n", orig->node, tipc_own_addr); if (size && (size != sizeof(struct tipc_subscr))) { - warn("Received tipc_subscr of invalid size\n"); + warn("Subscriber rejected, invalid subscription size\n"); return; } @@ -395,7 +395,7 @@ static void subscr_named_msg_event(void *usr_handle, subscriber = kmalloc(sizeof(struct subscriber), GFP_ATOMIC); if (subscriber == NULL) { - warn("Memory squeeze; ignoring subscriber setup\n"); + warn("Subscriber rejected, no memory\n"); return; } memset(subscriber, 0, sizeof(struct subscriber)); @@ -403,7 +403,7 @@ static void subscr_named_msg_event(void *usr_handle, INIT_LIST_HEAD(&subscriber->subscriber_list); subscriber->ref = tipc_ref_acquire(subscriber, &subscriber->lock); if (subscriber->ref == 0) { - warn("Failed to acquire subscriber reference\n"); + warn("Subscriber rejected, reference table exhausted\n"); kfree(subscriber); return; } @@ -422,7 +422,7 @@ static void subscr_named_msg_event(void *usr_handle, NULL, &subscriber->port_ref); if (subscriber->port_ref == 0) { - warn("Memory squeeze; failed to create subscription port\n"); + warn("Subscriber rejected, unable to create port\n"); tipc_ref_discard(subscriber->ref); kfree(subscriber); return; diff --git a/net/tipc/zone.c b/net/tipc/zone.c index 2803e1b4f17..316c4872ff5 100644 --- a/net/tipc/zone.c +++ b/net/tipc/zone.c @@ -44,19 +44,24 @@ struct _zone *tipc_zone_create(u32 addr) { - struct _zone *z_ptr = NULL; + struct _zone *z_ptr; u32 z_num; - if (!tipc_addr_domain_valid(addr)) + if (!tipc_addr_domain_valid(addr)) { + err("Zone creation failed, invalid domain 0x%x\n", addr); return NULL; + } z_ptr = (struct _zone *)kmalloc(sizeof(*z_ptr), GFP_ATOMIC); - if (z_ptr != NULL) { - memset(z_ptr, 0, sizeof(*z_ptr)); - z_num = tipc_zone(addr); - z_ptr->addr = tipc_addr(z_num, 0, 0); - tipc_net.zones[z_num] = z_ptr; + if (!z_ptr) { + warn("Zone creation failed, insufficient memory\n"); + return NULL; } + + memset(z_ptr, 0, sizeof(*z_ptr)); + z_num = tipc_zone(addr); + z_ptr->addr = tipc_addr(z_num, 0, 0); + tipc_net.zones[z_num] = z_ptr; return z_ptr; } -- cgit v1.2.3 From 5392d646886d8f1ae01be69c10600b8df5284c41 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:52:50 -0700 Subject: [TIPC]: Fixed link switchover bugs Incorporates several related fixes: - switchover now occurs when switching from an active link to a standby link - failure of a standby link no longer initiates switchover - links now display correct # of received packtes following reactivation Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/link.c | 30 ++++++++++++++++++++++++------ net/tipc/node.c | 7 +++++-- net/tipc/node.h | 2 ++ 3 files changed, 31 insertions(+), 8 deletions(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index d7668b8abb2..d6465805374 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -690,6 +690,7 @@ void tipc_link_reset(struct link *l_ptr) struct sk_buff *buf; u32 prev_state = l_ptr->state; u32 checkpoint = l_ptr->next_in_no; + int was_active_link = tipc_link_is_active(l_ptr); msg_set_session(l_ptr->pmsg, msg_session(l_ptr->pmsg) + 1); @@ -711,7 +712,7 @@ void tipc_link_reset(struct link *l_ptr) tipc_printf(TIPC_CONS, "\nReset link <%s>\n", l_ptr->name); dbg_link_dump(); #endif - if (tipc_node_has_active_links(l_ptr->owner) && + if (was_active_link && tipc_node_has_active_links(l_ptr->owner) && l_ptr->owner->permit_changeover) { l_ptr->reset_checkpoint = checkpoint; l_ptr->exp_msg_count = START_CHANGEOVER; @@ -754,7 +755,7 @@ void tipc_link_reset(struct link *l_ptr) static void link_activate(struct link *l_ptr) { - l_ptr->next_in_no = 1; + l_ptr->next_in_no = l_ptr->stats.recv_info = 1; tipc_node_link_up(l_ptr->owner, l_ptr); tipc_bearer_add_dest(l_ptr->b_ptr, l_ptr->addr); link_send_event(tipc_cfg_link_event, l_ptr, 1); @@ -2303,12 +2304,18 @@ void tipc_link_tunnel(struct link *l_ptr, u32 length = msg_size(msg); tunnel = l_ptr->owner->active_links[selector & 1]; - if (!tipc_link_is_up(tunnel)) + if (!tipc_link_is_up(tunnel)) { + warn("Link changeover error, " + "tunnel link no longer available\n"); return; + } msg_set_size(tunnel_hdr, length + INT_H_SIZE); buf = buf_acquire(length + INT_H_SIZE); - if (!buf) + if (!buf) { + warn("Link changeover error, " + "unable to send tunnel msg\n"); return; + } memcpy(buf->data, (unchar *)tunnel_hdr, INT_H_SIZE); memcpy(buf->data + INT_H_SIZE, (unchar *)msg, length); dbg("%c->%c:", l_ptr->b_ptr->net_plane, tunnel->b_ptr->net_plane); @@ -2328,19 +2335,23 @@ void tipc_link_changeover(struct link *l_ptr) u32 msgcount = l_ptr->out_queue_size; struct sk_buff *crs = l_ptr->first_out; struct link *tunnel = l_ptr->owner->active_links[0]; - int split_bundles = tipc_node_has_redundant_links(l_ptr->owner); struct tipc_msg tunnel_hdr; + int split_bundles; if (!tunnel) return; - if (!l_ptr->owner->permit_changeover) + if (!l_ptr->owner->permit_changeover) { + warn("Link changeover error, " + "peer did not permit changeover\n"); return; + } msg_init(&tunnel_hdr, CHANGEOVER_PROTOCOL, ORIGINAL_MSG, TIPC_OK, INT_H_SIZE, l_ptr->addr); msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id); msg_set_msgcnt(&tunnel_hdr, msgcount); + dbg("Link changeover requires %u tunnel messages\n", msgcount); if (!l_ptr->first_out) { struct sk_buff *buf; @@ -2360,6 +2371,9 @@ void tipc_link_changeover(struct link *l_ptr) return; } + split_bundles = (l_ptr->owner->active_links[0] != + l_ptr->owner->active_links[1]); + while (crs) { struct tipc_msg *msg = buf_msg(crs); @@ -2497,11 +2511,13 @@ static int link_recv_changeover_msg(struct link **l_ptr, dest_link->name); tipc_link_reset(dest_link); dest_link->exp_msg_count = msg_count; + dbg("Expecting %u tunnelled messages\n", msg_count); if (!msg_count) goto exit; } else if (dest_link->exp_msg_count == START_CHANGEOVER) { msg_dbg(tunnel_msg, "BLK/FIRST/exp_msg_count = msg_count; + dbg("Expecting %u tunnelled messages\n", msg_count); if (!msg_count) goto exit; } @@ -2509,6 +2525,8 @@ static int link_recv_changeover_msg(struct link **l_ptr, /* Receive original message */ if (dest_link->exp_msg_count == 0) { + warn("Link switchover error, " + "got too many tunnelled messages\n"); msg_dbg(tunnel_msg, "OVERDUE/DROP/active_links[0]; + n_ptr->working_links++; + info("Established link <%s> on network plane %c\n", l_ptr->name, l_ptr->b_ptr->net_plane); @@ -185,6 +187,8 @@ void tipc_node_link_down(struct node *n_ptr, struct link *l_ptr) { struct link **active; + n_ptr->working_links--; + if (!tipc_link_is_active(l_ptr)) { info("Lost standby link <%s> on network plane %c\n", l_ptr->name, l_ptr->b_ptr->net_plane); @@ -214,8 +218,7 @@ int tipc_node_has_active_links(struct node *n_ptr) int tipc_node_has_redundant_links(struct node *n_ptr) { - return (tipc_node_has_active_links(n_ptr) && - (n_ptr->active_links[0] != n_ptr->active_links[1])); + return (n_ptr->working_links > 1); } static int tipc_node_has_active_routes(struct node *n_ptr) diff --git a/net/tipc/node.h b/net/tipc/node.h index 781126e084a..a07cc79ea63 100644 --- a/net/tipc/node.h +++ b/net/tipc/node.h @@ -51,6 +51,7 @@ * @nsub: list of "node down" subscriptions monitoring node * @active_links: pointers to active links to node * @links: pointers to all links to node + * @working_links: number of working links to node (both active and standby) * @link_cnt: number of links to node * @permit_changeover: non-zero if node has redundant links to this system * @routers: bitmap (used for multicluster communication) @@ -76,6 +77,7 @@ struct node { struct link *active_links[2]; struct link *links[MAX_BEARERS]; int link_cnt; + int working_links; int permit_changeover; u32 routers[512/32]; int last_router; -- cgit v1.2.3 From 65f51ef0971f01d64027cb3bca2c5827fb5b19cb Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:53:20 -0700 Subject: [TIPC]: Get rid of dynamically allocated arrays in broadcast code. This change improves an earlier change which replaced the large local variable arrays used during broadcasting with dynamically allocated arrays. The temporary arrays are now incoprorated into the multicast link data structure. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/bcast.c | 41 +++++++++++++++++------------------------ 1 file changed, 17 insertions(+), 24 deletions(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 1633ef201df..54128040a12 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -81,7 +81,14 @@ struct bcbearer_pair { * @bearer: (non-standard) broadcast bearer structure * @media: (non-standard) broadcast media structure * @bpairs: array of bearer pairs - * @bpairs_temp: array of bearer pairs used during creation of "bpairs" + * @bpairs_temp: temporary array of bearer pairs used by tipc_bcbearer_sort() + * @remains: temporary node map used by tipc_bcbearer_send() + * @remains_new: temporary node map used tipc_bcbearer_send() + * + * Note: The fields labelled "temporary" are incorporated into the bearer + * to avoid consuming potentially limited stack space through the use of + * large local variables within multicast routines. Concurrent access is + * prevented through use of the spinlock "bc_lock". */ struct bcbearer { @@ -89,6 +96,8 @@ struct bcbearer { struct media media; struct bcbearer_pair bpairs[MAX_BEARERS]; struct bcbearer_pair bpairs_temp[TIPC_MAX_LINK_PRI + 1]; + struct node_map remains; + struct node_map remains_new; }; /** @@ -551,12 +560,8 @@ static int tipc_bcbearer_send(struct sk_buff *buf, { static int send_count = 0; - struct node_map *remains; - struct node_map *remains_new; - struct node_map *remains_tmp; int bp_index; int swap_time; - int err; /* Prepare buffer for broadcasting (if first time trying to send it) */ @@ -577,9 +582,7 @@ static int tipc_bcbearer_send(struct sk_buff *buf, /* Send buffer over bearers until all targets reached */ - remains = kmalloc(sizeof(struct node_map), GFP_ATOMIC); - remains_new = kmalloc(sizeof(struct node_map), GFP_ATOMIC); - *remains = tipc_cltr_bcast_nodes; + bcbearer->remains = tipc_cltr_bcast_nodes; for (bp_index = 0; bp_index < MAX_BEARERS; bp_index++) { struct bearer *p = bcbearer->bpairs[bp_index].primary; @@ -588,8 +591,8 @@ static int tipc_bcbearer_send(struct sk_buff *buf, if (!p) break; /* no more bearers to try */ - tipc_nmap_diff(remains, &p->nodes, remains_new); - if (remains_new->count == remains->count) + tipc_nmap_diff(&bcbearer->remains, &p->nodes, &bcbearer->remains_new); + if (bcbearer->remains_new.count == bcbearer->remains.count) continue; /* bearer pair doesn't add anything */ if (!p->publ.blocked && @@ -607,27 +610,17 @@ swap: bcbearer->bpairs[bp_index].primary = s; bcbearer->bpairs[bp_index].secondary = p; update: - if (remains_new->count == 0) { - err = TIPC_OK; - goto out; - } + if (bcbearer->remains_new.count == 0) + return TIPC_OK; - /* swap map */ - remains_tmp = remains; - remains = remains_new; - remains_new = remains_tmp; + bcbearer->remains = bcbearer->remains_new; } /* Unable to reach all targets */ bcbearer->bearer.publ.blocked = 1; bcl->stats.bearer_congs++; - err = ~TIPC_OK; - - out: - kfree(remains_new); - kfree(remains); - return err; + return ~TIPC_OK; } /** -- cgit v1.2.3 From 3ba07e65b288f00cc4d2420f1da46309b1cb5a0c Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Sun, 25 Jun 2006 23:53:47 -0700 Subject: [TIPC]: Fix incorrect correction to discovery timer frequency computation. Signed-off-by: Allan Stephens Signed-off-by: Per Liden Signed-off-by: David S. Miller --- net/tipc/discover.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/tipc/discover.c b/net/tipc/discover.c index ee9b4484d85..2b844120312 100644 --- a/net/tipc/discover.c +++ b/net/tipc/discover.c @@ -2,7 +2,7 @@ * net/tipc/discover.c * * Copyright (c) 2003-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems + * Copyright (c) 2005-2006, Wind River Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -267,8 +267,8 @@ static void disc_timeout(struct link_req *req) /* leave timer interval "as is" if already at a "normal" rate */ } else { req->timer_intv *= 2; - if (req->timer_intv > TIPC_LINK_REQ_SLOW) - req->timer_intv = TIPC_LINK_REQ_SLOW; + if (req->timer_intv > TIPC_LINK_REQ_FAST) + req->timer_intv = TIPC_LINK_REQ_FAST; if ((req->timer_intv == TIPC_LINK_REQ_FAST) && (req->bearer->nodes.count)) req->timer_intv = TIPC_LINK_REQ_SLOW; -- cgit v1.2.3 From 0718bcc09b3597c51e87f265c72135a4928d3c0b Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 25 Jun 2006 23:55:46 -0700 Subject: [NET]: Fix CHECKSUM_HW GSO problems. Fix checksum problems in the GSO code path for CHECKSUM_HW packets. The ipv4 TCP pseudo header checksum has to be adjusted for GSO segmented packets. The adjustment is needed because the length field in the pseudo-header changes. However, because we have the inequality oldlen > newlen, we know that delta = (u16)~oldlen + newlen is still a 16-bit quantity. This also means that htonl(delta) + th->check still fits in 32 bits. Therefore we don't have to use csum_add on this operations. This is based on a patch by Michael Chan . Signed-off-by: Herbert Xu Acked-by: Michael Chan Signed-off-by: David S. Miller --- net/ipv4/tcp.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 0e029c4e290..c04176be7ed 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2166,7 +2166,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int sg) if (!pskb_may_pull(skb, thlen)) goto out; - oldlen = ~htonl(skb->len); + oldlen = (u16)~skb->len; __skb_pull(skb, thlen); segs = skb_segment(skb, sg); @@ -2174,7 +2174,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int sg) goto out; len = skb_shinfo(skb)->gso_size; - delta = csum_add(oldlen, htonl(thlen + len)); + delta = htonl(oldlen + (thlen + len)); skb = segs; th = skb->h.th; @@ -2183,10 +2183,10 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int sg) do { th->fin = th->psh = 0; - if (skb->ip_summed == CHECKSUM_NONE) { - th->check = csum_fold(csum_partial( - skb->h.raw, thlen, csum_add(skb->csum, delta))); - } + th->check = ~csum_fold(th->check + delta); + if (skb->ip_summed != CHECKSUM_HW) + th->check = csum_fold(csum_partial(skb->h.raw, thlen, + skb->csum)); seq += len; skb = skb->next; @@ -2196,11 +2196,11 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int sg) th->cwr = 0; } while (skb->next); - if (skb->ip_summed == CHECKSUM_NONE) { - delta = csum_add(oldlen, htonl(skb->tail - skb->h.raw)); - th->check = csum_fold(csum_partial( - skb->h.raw, thlen, csum_add(skb->csum, delta))); - } + delta = htonl(oldlen + (skb->tail - skb->h.raw) + skb->data_len); + th->check = ~csum_fold(th->check + delta); + if (skb->ip_summed != CHECKSUM_HW) + th->check = csum_fold(csum_partial(skb->h.raw, thlen, + skb->csum)); out: return segs; -- cgit v1.2.3 From f54d9e8d7f7dd60f26157c12acda3fc94fcd9ab7 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sun, 25 Jun 2006 23:57:04 -0700 Subject: [NET]: Fix GSO problems in dev_hard_start_xmit() Fix 2 problems in dev_hard_start_xmit(): 1. nskb->next needs to link back to skb->next if hard_start_xmit() returns non-zero. 2. Since the total number of GSO fragments may exceed MAX_SKB_FRAGS + 1, it needs to stop transmitting if the netif_queue is stopped. Signed-off-by: Michael Chan Acked-by: Herbert Xu Signed-off-by: David S. Miller --- net/core/dev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/core/dev.c b/net/core/dev.c index ea2469398bd..aa845490171 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1325,9 +1325,12 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) nskb->next = NULL; rc = dev->hard_start_xmit(nskb, dev); if (unlikely(rc)) { + nskb->next = skb->next; skb->next = nskb; return rc; } + if (unlikely(netif_queue_stopped(dev) && skb->next)) + return NETDEV_TX_BUSY; } while (skb->next); skb->destructor = DEV_GSO_CB(skb)->destructor; -- cgit v1.2.3 From 6048126440dcb3ba01316f961465c0ff5a255dd1 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 25 Jun 2006 23:58:10 -0700 Subject: [NET]: make net/core/dev.c:netdev_nit static netdev_nit can now become static. Signed-off-by: Adrian Bunk Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 - net/core/dev.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index bc747e5d713..03cd7551a7a 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -699,7 +699,6 @@ extern int dev_hard_start_xmit(struct sk_buff *skb, extern void dev_init(void); -extern int netdev_nit; extern int netdev_budget; /* Called by rtnetlink.c:rtnl_unlock() */ diff --git a/net/core/dev.c b/net/core/dev.c index aa845490171..f1c52cbd6ef 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -230,7 +230,7 @@ extern void netdev_unregister_sysfs(struct net_device *); * For efficiency */ -int netdev_nit; +static int netdev_nit; /* * Add a protocol ID to the list. Now that the input handler is -- cgit v1.2.3 From f72b948dcbb8558d639214536c2ace1b0760f41d Mon Sep 17 00:00:00 2001 From: Phil Oester Date: Mon, 26 Jun 2006 00:00:57 -0700 Subject: [NET]: skb_find_text ignores to argument skb_find_text takes a "to" argument which is supposed to limit how far into the skb it will search for the given text. At present, it seems to ignore that argument on the first skb, and instead return a match even if the text occurs beyond the limit. Patch below fixes this, after adjusting for the "from" starting point. This consequently fixes the netfilter string match's "--to" handling, which currently is broken. Signed-off-by: Phil Oester Signed-off-by: David S. Miller --- net/core/skbuff.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 8e5044ba3ab..6edbb90cbce 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1739,12 +1739,15 @@ unsigned int skb_find_text(struct sk_buff *skb, unsigned int from, unsigned int to, struct ts_config *config, struct ts_state *state) { + unsigned int ret; + config->get_next_block = skb_ts_get_next_block; config->finish = skb_ts_finish; skb_prepare_seq_read(skb, from, to, TS_SKB_CB(state)); - return textsearch_find(config, state); + ret = textsearch_find(config, state); + return (ret <= to - from ? ret : UINT_MAX); } /** -- cgit v1.2.3 From 1e4fd51e2c830f2a10c9b143986757d8ea35b0fc Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 26 Jun 2006 00:01:58 -0700 Subject: [ATM]: atm/mpc.c warning fix net/atm/mpc.c: In function 'MPOA_res_reply_rcvd': net/atm/mpc.c:1116: warning: unused variable 'ip' Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/atm/mpc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/atm/mpc.c b/net/atm/mpc.c index a48a5d58040..5fe77df0018 100644 --- a/net/atm/mpc.c +++ b/net/atm/mpc.c @@ -1113,10 +1113,9 @@ static void check_qos_and_open_shortcut(struct k_message *msg, struct mpoa_clien static void MPOA_res_reply_rcvd(struct k_message *msg, struct mpoa_client *mpc) { - unsigned char *ip; - uint32_t dst_ip = msg->content.in_info.in_dst_ip; in_cache_entry *entry = mpc->in_ops->get(dst_ip, mpc); + dprintk("mpoa: (%s) MPOA_res_reply_rcvd: ip %u.%u.%u.%u\n", mpc->dev->name, NIPQUAD(dst_ip)); ddprintk("mpoa: (%s) MPOA_res_reply_rcvd() entry = %p", mpc->dev->name, entry); if(entry == NULL){ -- cgit v1.2.3 From d83561a4d67863b4aa297e8f598823dd4dfe855e Mon Sep 17 00:00:00 2001 From: Ben Collins Date: Mon, 26 Jun 2006 00:02:47 -0700 Subject: [IRDA]: add some IBM think pads [UBUNTU:nsc-ircc] Add some IBM think pads Add Thinkpad T60/X60/Z60/T43/R52 Infrared driver support. http://www.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu-dapper.git;a=commitdiff;h=7b8d2713435a9fb69719a282ba75e117f3f76a5b Signed-off-by: Ben Collins Signed-off-by: Andrew Morton --- drivers/net/irda/nsc-ircc.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c index cc7ff8f00e4..cb62f2a9676 100644 --- a/drivers/net/irda/nsc-ircc.c +++ b/drivers/net/irda/nsc-ircc.c @@ -115,8 +115,12 @@ static nsc_chip_t chips[] = { /* Contributed by Jan Frey - IBM A30/A31 */ { "PC8739x", { 0x2e, 0x4e, 0x0 }, 0x20, 0xea, 0xff, nsc_ircc_probe_39x, nsc_ircc_init_39x }, - { "IBM", { 0x2e, 0x4e, 0x0 }, 0x20, 0xf4, 0xff, - nsc_ircc_probe_39x, nsc_ircc_init_39x }, + /* IBM ThinkPads using PC8738x (T60/X60/Z60) */ + { "IBM-PC8738x", { 0x2e, 0x4e, 0x0 }, 0x20, 0xf4, 0xff, + nsc_ircc_probe_39x, nsc_ircc_init_39x }, + /* IBM ThinkPads using PC8394T (T43/R52/?) */ + { "IBM-PC8394T", { 0x2e, 0x4e, 0x0 }, 0x20, 0xf9, 0xff, + nsc_ircc_probe_39x, nsc_ircc_init_39x }, { NULL } }; -- cgit v1.2.3 From 8834807b43200b1658b49d3b779e74a4f77e4ffb Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 26 Jun 2006 00:03:40 -0700 Subject: [NET] netpoll: don't spin forever sending to stopped queues When transmitting a skb in netpoll_send_skb(), only retry a limited number of times if the device queue is stopped. Signed-off-by: Jeremy Fitzhardinge Acked-by: Matt Mackall Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/core/netpoll.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 9cb78183038..377d1e7257b 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -279,14 +279,10 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb) * network drivers do not expect to be called if the queue is * stopped. */ - if (netif_queue_stopped(np->dev)) { - netif_tx_unlock(np->dev); - netpoll_poll(np); - udelay(50); - continue; - } + status = NETDEV_TX_BUSY; + if (!netif_queue_stopped(np->dev)) + status = np->dev->hard_start_xmit(skb, np->dev); - status = np->dev->hard_start_xmit(skb, np->dev); netif_tx_unlock(np->dev); /* success */ -- cgit v1.2.3 From 068c6e98bc7ec4419299b38cd40be26ebf4bdeda Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Mon, 26 Jun 2006 00:04:27 -0700 Subject: [NET] netpoll: break recursive loop in netpoll rx path The netpoll system currently has a rx to tx path via: netpoll_rx __netpoll_rx arp_reply netpoll_send_skb dev->hard_start_tx This rx->tx loop places network drivers at risk of inadvertently causing a deadlock or BUG halt by recursively trying to acquire a spinlock that is used in both their rx and tx paths (this problem was origionally reported to me in the 3c59x driver, which shares a spinlock between the boomerang_interrupt and boomerang_start_xmit routines). This patch breaks this loop, by queueing arp frames, so that they can be responded to after all receive operations have been completed. Tested by myself and the reported with successful results. Specifically it was tested with netdump. Heres the BZ with details: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=194055 Signed-off-by: Neil Horman Acked-by: Matt Mackall Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- include/linux/netpoll.h | 1 + net/core/netpoll.c | 26 ++++++++++++++++++++++++-- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index ca5a8733000..1efe60c5c00 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -31,6 +31,7 @@ struct netpoll_info { int rx_flags; spinlock_t rx_lock; struct netpoll *rx_np; /* netpoll that registered an rx_hook */ + struct sk_buff_head arp_tx; /* list of arp requests to reply to */ }; void netpoll_poll(struct netpoll *np); diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 377d1e7257b..471da451cd4 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -54,6 +54,7 @@ static atomic_t trapped; sizeof(struct iphdr) + sizeof(struct ethhdr)) static void zap_completion_queue(void); +static void arp_reply(struct sk_buff *skb); static void queue_process(void *p) { @@ -153,6 +154,22 @@ static void poll_napi(struct netpoll *np) } } +static void service_arp_queue(struct netpoll_info *npi) +{ + struct sk_buff *skb; + + if (unlikely(!npi)) + return; + + skb = skb_dequeue(&npi->arp_tx); + + while (skb != NULL) { + arp_reply(skb); + skb = skb_dequeue(&npi->arp_tx); + } + return; +} + void netpoll_poll(struct netpoll *np) { if(!np->dev || !netif_running(np->dev) || !np->dev->poll_controller) @@ -163,6 +180,8 @@ void netpoll_poll(struct netpoll *np) if (np->dev->poll) poll_napi(np); + service_arp_queue(np->dev->npinfo); + zap_completion_queue(); } @@ -442,7 +461,9 @@ int __netpoll_rx(struct sk_buff *skb) int proto, len, ulen; struct iphdr *iph; struct udphdr *uh; - struct netpoll *np = skb->dev->npinfo->rx_np; + struct netpoll_info *npi = skb->dev->npinfo; + struct netpoll *np = npi->rx_np; + if (!np) goto out; @@ -452,7 +473,7 @@ int __netpoll_rx(struct sk_buff *skb) /* check if netpoll clients need ARP */ if (skb->protocol == __constant_htons(ETH_P_ARP) && atomic_read(&trapped)) { - arp_reply(skb); + skb_queue_tail(&npi->arp_tx, skb); return 1; } @@ -647,6 +668,7 @@ int netpoll_setup(struct netpoll *np) npinfo->poll_owner = -1; npinfo->tries = MAX_RETRIES; spin_lock_init(&npinfo->rx_lock); + skb_queue_head_init(&npinfo->arp_tx); } else npinfo = ndev->npinfo; -- cgit v1.2.3 From 52383678a8ac80e6679f94f60c897f9292e0e8b9 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 26 Jun 2006 00:05:23 -0700 Subject: [NETROM]: Fix possible null pointer dereference. If in nr_link_failed the neighbour list is non-empty but the node list is empty we'll end dereferencing a in a NULL pointer. This fixes coverity 362. Signed-off-by: Ralf Baechle Signed-off-by: David S. Miller --- net/netrom/nr_route.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c index b3b9097c87c..c11737f472d 100644 --- a/net/netrom/nr_route.c +++ b/net/netrom/nr_route.c @@ -725,15 +725,17 @@ void nr_link_failed(ax25_cb *ax25, int reason) struct nr_node *nr_node = NULL; spin_lock_bh(&nr_neigh_list_lock); - nr_neigh_for_each(s, node, &nr_neigh_list) + nr_neigh_for_each(s, node, &nr_neigh_list) { if (s->ax25 == ax25) { nr_neigh_hold(s); nr_neigh = s; break; } + } spin_unlock_bh(&nr_neigh_list_lock); - if (nr_neigh == NULL) return; + if (nr_neigh == NULL) + return; nr_neigh->ax25 = NULL; ax25_cb_put(ax25); @@ -743,11 +745,13 @@ void nr_link_failed(ax25_cb *ax25, int reason) return; } spin_lock_bh(&nr_node_list_lock); - nr_node_for_each(nr_node, node, &nr_node_list) + nr_node_for_each(nr_node, node, &nr_node_list) { nr_node_lock(nr_node); - if (nr_node->which < nr_node->count && nr_node->routes[nr_node->which].neighbour == nr_neigh) + if (nr_node->which < nr_node->count && + nr_node->routes[nr_node->which].neighbour == nr_neigh) nr_node->which++; nr_node_unlock(nr_node); + } spin_unlock_bh(&nr_node_list_lock); nr_neigh_put(nr_neigh); } -- cgit v1.2.3 From 8070b2b1ecbeb5437c92c33b4dcea1d8d80399ee Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 26 Jun 2006 00:10:46 -0700 Subject: [IOAT]: Do not dereference THIS_MODULE directly to set unsafe. Use the __unsafe() macro instead. Noticed by Miles Lane. Signed-off-by: David S. Miller --- drivers/dma/ioatdma.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/dma/ioatdma.c b/drivers/dma/ioatdma.c index 0fdf7fbd649..2801d14a5e4 100644 --- a/drivers/dma/ioatdma.c +++ b/drivers/dma/ioatdma.c @@ -824,10 +824,9 @@ static int __init ioat_init_module(void) { /* it's currently unsafe to unload this module */ /* if forced, worst case is that rmmod hangs */ - if (THIS_MODULE != NULL) - THIS_MODULE->unsafe = 1; + __unsafe(THIS_MODULE); - return pci_module_init(&ioat_pci_drv); + pci_module_init(&ioat_pci_drv); } module_init(ioat_init_module); -- cgit v1.2.3 From d00e708cef16442cabaf23f653baf924f5d66e83 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Thu, 6 Apr 2006 03:26:01 +1000 Subject: [CRYPTO] khazad: Use 32-bit reads on key On 64-bit platform, reading 64-bit keys (which is supposed to be 32-bit aligned) at a time will result in unaligned access. Signed-off-by: Atsushi Nemoto Signed-off-by: Herbert Xu --- crypto/khazad.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/crypto/khazad.c b/crypto/khazad.c index 807f2bf4ea2..5b8dc9a2d37 100644 --- a/crypto/khazad.c +++ b/crypto/khazad.c @@ -758,7 +758,7 @@ static int khazad_setkey(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) { struct khazad_ctx *ctx = ctx_arg; - const __be64 *key = (const __be64 *)in_key; + const __be32 *key = (const __be32 *)in_key; int r; const u64 *S = T7; u64 K2, K1; @@ -769,8 +769,9 @@ static int khazad_setkey(void *ctx_arg, const u8 *in_key, return -EINVAL; } - K2 = be64_to_cpu(key[0]); - K1 = be64_to_cpu(key[1]); + /* key is supposed to be 32-bit aligned */ + K2 = ((u64)be32_to_cpu(key[0]) << 32) | be32_to_cpu(key[1]); + K1 = ((u64)be32_to_cpu(key[2]) << 32) | be32_to_cpu(key[3]); /* setup the encrypt key */ for (r = 0; r <= KHAZAD_ROUNDS; r++) { -- cgit v1.2.3 From e1147d8f47eb8fef93f98a30858192145137d2b2 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Mon, 10 Apr 2006 08:42:35 +1000 Subject: [CRYPTO] digest: Add alignment handling Some hash modules load/store data words directly. The digest layer should pass properly aligned buffer to update()/final() method. This patch also add cra_alignmask to some hash modules. Signed-off-by: Atsushi Nemoto Signed-off-by: Herbert Xu --- crypto/digest.c | 42 +++++++++++++++++++++++++++--------------- crypto/michael_mic.c | 1 + crypto/sha1.c | 1 + crypto/sha256.c | 1 + crypto/sha512.c | 2 ++ crypto/tgr192.c | 3 +++ 6 files changed, 35 insertions(+), 15 deletions(-) diff --git a/crypto/digest.c b/crypto/digest.c index d9b6ac9dbf8..062d0a5a2c8 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -27,6 +27,7 @@ static void update(struct crypto_tfm *tfm, struct scatterlist *sg, unsigned int nsg) { unsigned int i; + unsigned int alignmask = crypto_tfm_alg_alignmask(tfm); for (i = 0; i < nsg; i++) { @@ -38,12 +39,24 @@ static void update(struct crypto_tfm *tfm, unsigned int bytes_from_page = min(l, ((unsigned int) (PAGE_SIZE)) - offset); - char *p = crypto_kmap(pg, 0) + offset; + char *src = crypto_kmap(pg, 0); + char *p = src + offset; + if (unlikely(offset & alignmask)) { + unsigned int bytes = + alignmask + 1 - (offset & alignmask); + bytes = min(bytes, bytes_from_page); + tfm->__crt_alg->cra_digest.dia_update + (crypto_tfm_ctx(tfm), p, + bytes); + p += bytes; + bytes_from_page -= bytes; + l -= bytes; + } tfm->__crt_alg->cra_digest.dia_update (crypto_tfm_ctx(tfm), p, bytes_from_page); - crypto_kunmap(p, 0); + crypto_kunmap(src, 0); crypto_yield(tfm); offset = 0; pg++; @@ -54,7 +67,15 @@ static void update(struct crypto_tfm *tfm, static void final(struct crypto_tfm *tfm, u8 *out) { - tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), out); + unsigned long alignmask = crypto_tfm_alg_alignmask(tfm); + if (unlikely((unsigned long)out & alignmask)) { + unsigned int size = crypto_tfm_alg_digestsize(tfm); + u8 buffer[size + alignmask]; + u8 *dst = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1); + tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), dst); + memcpy(out, dst, size); + } else + tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), out); } static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) @@ -69,18 +90,9 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) static void digest(struct crypto_tfm *tfm, struct scatterlist *sg, unsigned int nsg, u8 *out) { - unsigned int i; - - tfm->crt_digest.dit_init(tfm); - - for (i = 0; i < nsg; i++) { - char *p = crypto_kmap(sg[i].page, 0) + sg[i].offset; - tfm->__crt_alg->cra_digest.dia_update(crypto_tfm_ctx(tfm), - p, sg[i].length); - crypto_kunmap(p, 0); - crypto_yield(tfm); - } - crypto_digest_final(tfm, out); + init(tfm); + update(tfm, sg, nsg); + final(tfm, out); } int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags) diff --git a/crypto/michael_mic.c b/crypto/michael_mic.c index 4f6ab23e14a..701f859ed76 100644 --- a/crypto/michael_mic.c +++ b/crypto/michael_mic.c @@ -145,6 +145,7 @@ static struct crypto_alg michael_mic_alg = { .cra_blocksize = 8, .cra_ctxsize = sizeof(struct michael_mic_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 3, .cra_list = LIST_HEAD_INIT(michael_mic_alg.cra_list), .cra_u = { .digest = { .dia_digestsize = 8, diff --git a/crypto/sha1.c b/crypto/sha1.c index 21571ed35b7..b96f57d95a8 100644 --- a/crypto/sha1.c +++ b/crypto/sha1.c @@ -112,6 +112,7 @@ static struct crypto_alg alg = { .cra_blocksize = SHA1_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha1_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 3, .cra_list = LIST_HEAD_INIT(alg.cra_list), .cra_u = { .digest = { .dia_digestsize = SHA1_DIGEST_SIZE, diff --git a/crypto/sha256.c b/crypto/sha256.c index 9d5ef674d6a..d62264a8a33 100644 --- a/crypto/sha256.c +++ b/crypto/sha256.c @@ -313,6 +313,7 @@ static struct crypto_alg alg = { .cra_blocksize = SHA256_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha256_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 3, .cra_list = LIST_HEAD_INIT(alg.cra_list), .cra_u = { .digest = { .dia_digestsize = SHA256_DIGEST_SIZE, diff --git a/crypto/sha512.c b/crypto/sha512.c index 3e6e9392310..7dbec4f6b94 100644 --- a/crypto/sha512.c +++ b/crypto/sha512.c @@ -281,6 +281,7 @@ static struct crypto_alg sha512 = { .cra_blocksize = SHA512_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha512_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 3, .cra_list = LIST_HEAD_INIT(sha512.cra_list), .cra_u = { .digest = { .dia_digestsize = SHA512_DIGEST_SIZE, @@ -295,6 +296,7 @@ static struct crypto_alg sha384 = { .cra_flags = CRYPTO_ALG_TYPE_DIGEST, .cra_blocksize = SHA384_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sha512_ctx), + .cra_alignmask = 3, .cra_module = THIS_MODULE, .cra_list = LIST_HEAD_INIT(sha384.cra_list), .cra_u = { .digest = { diff --git a/crypto/tgr192.c b/crypto/tgr192.c index 2d8e44f6fbe..1eae1bb7e49 100644 --- a/crypto/tgr192.c +++ b/crypto/tgr192.c @@ -627,6 +627,7 @@ static struct crypto_alg tgr192 = { .cra_blocksize = TGR192_BLOCK_SIZE, .cra_ctxsize = sizeof(struct tgr192_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 7, .cra_list = LIST_HEAD_INIT(tgr192.cra_list), .cra_u = {.digest = { .dia_digestsize = TGR192_DIGEST_SIZE, @@ -641,6 +642,7 @@ static struct crypto_alg tgr160 = { .cra_blocksize = TGR192_BLOCK_SIZE, .cra_ctxsize = sizeof(struct tgr192_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 7, .cra_list = LIST_HEAD_INIT(tgr160.cra_list), .cra_u = {.digest = { .dia_digestsize = TGR160_DIGEST_SIZE, @@ -655,6 +657,7 @@ static struct crypto_alg tgr128 = { .cra_blocksize = TGR192_BLOCK_SIZE, .cra_ctxsize = sizeof(struct tgr192_ctx), .cra_module = THIS_MODULE, + .cra_alignmask = 7, .cra_list = LIST_HEAD_INIT(tgr128.cra_list), .cra_u = {.digest = { .dia_digestsize = TGR128_DIGEST_SIZE, -- cgit v1.2.3 From 8b55ba0303bb59c34fab8e015634018780491614 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 14 May 2006 11:00:39 +1000 Subject: [CRYPTO] aes-i586: Get rid of useless function wrappers The wrappers aes_encrypt/aes_decrypt simply reverse the order of the function arguments. It's just as easy to get the actual assembly code to read them in the opposite order. Signed-off-by: Herbert Xu --- arch/i386/crypto/aes-i586-asm.S | 9 ++++----- arch/i386/crypto/aes.c | 18 ++++-------------- 2 files changed, 8 insertions(+), 19 deletions(-) diff --git a/arch/i386/crypto/aes-i586-asm.S b/arch/i386/crypto/aes-i586-asm.S index 911b15377f2..2851f7fe51e 100644 --- a/arch/i386/crypto/aes-i586-asm.S +++ b/arch/i386/crypto/aes-i586-asm.S @@ -36,16 +36,13 @@ .file "aes-i586-asm.S" .text -// aes_rval aes_enc_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1])// -// aes_rval aes_dec_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1])// - #define tlen 1024 // length of each of 4 'xor' arrays (256 32-bit words) // offsets to parameters with one register pushed onto stack -#define in_blk 8 // input byte array address parameter +#define in_blk 16 // input byte array address parameter #define out_blk 12 // output byte array address parameter -#define ctx 16 // AES context structure +#define ctx 8 // AES context structure // offsets in context structure @@ -220,6 +217,7 @@ do_col (table, r5,r0,r1,r4, r2,r3); /* idx=r5 */ // AES (Rijndael) Encryption Subroutine +/* void aes_enc_blk(void *ctx, u8 *out_blk, const u8 *in_blk) */ .global aes_enc_blk @@ -295,6 +293,7 @@ aes_enc_blk: ret // AES (Rijndael) Decryption Subroutine +/* void aes_dec_blk(void *ctx, u8 *out_blk, const u8 *in_blk) */ .global aes_dec_blk diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c index a50397b1d5c..a0e033510a3 100644 --- a/arch/i386/crypto/aes.c +++ b/arch/i386/crypto/aes.c @@ -45,8 +45,8 @@ #include #include -asmlinkage void aes_enc_blk(const u8 *src, u8 *dst, void *ctx); -asmlinkage void aes_dec_blk(const u8 *src, u8 *dst, void *ctx); +asmlinkage void aes_enc_blk(void *ctx, u8 *dst, const u8 *src); +asmlinkage void aes_dec_blk(void *ctx, u8 *dst, const u8 *src); #define AES_MIN_KEY_SIZE 16 #define AES_MAX_KEY_SIZE 32 @@ -464,16 +464,6 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) return 0; } -static inline void aes_encrypt(void *ctx, u8 *dst, const u8 *src) -{ - aes_enc_blk(src, dst, ctx); -} -static inline void aes_decrypt(void *ctx, u8 *dst, const u8 *src) -{ - aes_dec_blk(src, dst, ctx); -} - - static struct crypto_alg aes_alg = { .cra_name = "aes", .cra_driver_name = "aes-i586", @@ -488,8 +478,8 @@ static struct crypto_alg aes_alg = { .cia_min_keysize = AES_MIN_KEY_SIZE, .cia_max_keysize = AES_MAX_KEY_SIZE, .cia_setkey = aes_set_key, - .cia_encrypt = aes_encrypt, - .cia_decrypt = aes_decrypt + .cia_encrypt = aes_enc_blk, + .cia_decrypt = aes_dec_blk } } }; -- cgit v1.2.3 From 43600106e32809a4dead79fec67a63e9860e3d5d Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 16 May 2006 22:06:54 +1000 Subject: [CRYPTO] digest: Remove unnecessary zeroing during init Various digest algorithms operate one block at a time and therefore keep a temporary buffer of partial blocks. This buffer does not need to be initialised since there is a counter which indicates what is and isn't valid in it. Signed-off-by: Herbert Xu --- arch/s390/crypto/sha1_s390.c | 23 ++++++++++++----------- arch/s390/crypto/sha256_s390.c | 1 - crypto/sha256.c | 1 - crypto/sha512.c | 2 -- crypto/tgr192.c | 1 - 5 files changed, 12 insertions(+), 16 deletions(-) diff --git a/arch/s390/crypto/sha1_s390.c b/arch/s390/crypto/sha1_s390.c index 98c896b86dc..36bb5346a8c 100644 --- a/arch/s390/crypto/sha1_s390.c +++ b/arch/s390/crypto/sha1_s390.c @@ -40,19 +40,20 @@ struct crypt_s390_sha1_ctx { u8 buffer[2 * SHA1_BLOCK_SIZE]; }; -static void -sha1_init(void *ctx) +static void sha1_init(void *ctx_arg) { - static const struct crypt_s390_sha1_ctx initstate = { - .state = { - 0x67452301, - 0xEFCDAB89, - 0x98BADCFE, - 0x10325476, - 0xC3D2E1F0 - }, + struct crypt_s390_sha1_ctx *ctx = ctx_arg; + static const u32 initstate[5] = { + 0x67452301, + 0xEFCDAB89, + 0x98BADCFE, + 0x10325476, + 0xC3D2E1F0 }; - memcpy(ctx, &initstate, sizeof(initstate)); + + ctx->count = 0; + memcpy(ctx->state, &initstate, sizeof(initstate)); + ctx->buf_len = 0; } static void diff --git a/arch/s390/crypto/sha256_s390.c b/arch/s390/crypto/sha256_s390.c index 1ec5e92b345..2c76e7bee41 100644 --- a/arch/s390/crypto/sha256_s390.c +++ b/arch/s390/crypto/sha256_s390.c @@ -44,7 +44,6 @@ static void sha256_init(void *ctx) sctx->state[6] = 0x1f83d9ab; sctx->state[7] = 0x5be0cd19; sctx->count = 0; - memset(sctx->buf, 0, sizeof(sctx->buf)); } static void sha256_update(void *ctx, const u8 *data, unsigned int len) diff --git a/crypto/sha256.c b/crypto/sha256.c index d62264a8a33..4533a056489 100644 --- a/crypto/sha256.c +++ b/crypto/sha256.c @@ -242,7 +242,6 @@ static void sha256_init(void *ctx) sctx->state[6] = H6; sctx->state[7] = H7; sctx->count[0] = sctx->count[1] = 0; - memset(sctx->buf, 0, sizeof(sctx->buf)); } static void sha256_update(void *ctx, const u8 *data, unsigned int len) diff --git a/crypto/sha512.c b/crypto/sha512.c index 7dbec4f6b94..bc77a66d9de 100644 --- a/crypto/sha512.c +++ b/crypto/sha512.c @@ -173,7 +173,6 @@ sha512_init(void *ctx) sctx->state[6] = H6; sctx->state[7] = H7; sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0; - memset(sctx->buf, 0, sizeof(sctx->buf)); } static void @@ -189,7 +188,6 @@ sha384_init(void *ctx) sctx->state[6] = HP6; sctx->state[7] = HP7; sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0; - memset(sctx->buf, 0, sizeof(sctx->buf)); } static void diff --git a/crypto/tgr192.c b/crypto/tgr192.c index 1eae1bb7e49..004bb841cc5 100644 --- a/crypto/tgr192.c +++ b/crypto/tgr192.c @@ -500,7 +500,6 @@ static void tgr192_init(void *ctx) { struct tgr192_ctx *tctx = ctx; - memset (tctx->hash, 0, 64); tctx->a = 0x0123456789abcdefULL; tctx->b = 0xfedcba9876543210ULL; tctx->c = 0xf096a5b4c3b2e187ULL; -- cgit v1.2.3 From 6c2bb98bc33ae33c7a33a133a4cd5a06395fece5 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 16 May 2006 22:09:29 +1000 Subject: [CRYPTO] all: Pass tfm instead of ctx to algorithms Up until now algorithms have been happy to get a context pointer since they know everything that's in the tfm already (e.g., alignment, block size). However, once we have parameterised algorithms, such information will be specific to each tfm. So the algorithm API needs to be changed to pass the tfm structure instead of the context pointer. This patch is basically a text substitution. The only tricky bit is the assembly routines that need to get the context pointer offset through asm-offsets.h. Signed-off-by: Herbert Xu --- arch/i386/crypto/aes-i586-asm.S | 28 +++++++++---------- arch/i386/crypto/aes.c | 10 +++---- arch/i386/kernel/asm-offsets.c | 3 ++ arch/s390/crypto/aes_s390.c | 14 +++++----- arch/s390/crypto/des_s390.c | 42 ++++++++++++++-------------- arch/s390/crypto/sha1_s390.c | 15 +++++----- arch/s390/crypto/sha256_s390.c | 13 +++++---- arch/x86_64/crypto/aes-x86_64-asm.S | 18 +++++++----- arch/x86_64/crypto/aes.c | 10 +++---- arch/x86_64/kernel/asm-offsets.c | 3 ++ crypto/aes.c | 14 +++++----- crypto/anubis.c | 13 ++++----- crypto/arc4.c | 9 +++--- crypto/blowfish.c | 19 +++++++------ crypto/cast5.c | 14 +++++----- crypto/cast6.c | 15 +++++----- crypto/cipher.c | 14 +++++----- crypto/compress.c | 6 ++-- crypto/crc32c.c | 19 +++++++------ crypto/crypto_null.c | 17 ++++++------ crypto/deflate.c | 19 +++++++------ crypto/des.c | 27 ++++++++++-------- crypto/digest.c | 15 ++++------ crypto/khazad.c | 14 +++++----- crypto/md4.c | 12 ++++---- crypto/md5.c | 12 ++++---- crypto/michael_mic.c | 19 +++++++------ crypto/serpent.c | 27 ++++++++++-------- crypto/sha1.c | 17 ++++++------ crypto/sha256.c | 17 ++++++------ crypto/sha512.c | 25 ++++++++--------- crypto/tea.c | 55 ++++++++++++++++++------------------- crypto/tgr192.c | 29 ++++++++++--------- crypto/twofish.c | 14 +++++----- crypto/wp512.c | 24 ++++++++-------- drivers/crypto/padlock-aes.c | 29 ++++++++++--------- include/linux/crypto.h | 29 +++++++++---------- 37 files changed, 349 insertions(+), 331 deletions(-) diff --git a/arch/i386/crypto/aes-i586-asm.S b/arch/i386/crypto/aes-i586-asm.S index 2851f7fe51e..f942f0c8f63 100644 --- a/arch/i386/crypto/aes-i586-asm.S +++ b/arch/i386/crypto/aes-i586-asm.S @@ -36,19 +36,19 @@ .file "aes-i586-asm.S" .text -#define tlen 1024 // length of each of 4 'xor' arrays (256 32-bit words) - -// offsets to parameters with one register pushed onto stack +#include -#define in_blk 16 // input byte array address parameter -#define out_blk 12 // output byte array address parameter -#define ctx 8 // AES context structure +#define tlen 1024 // length of each of 4 'xor' arrays (256 32-bit words) -// offsets in context structure +/* offsets to parameters with one register pushed onto stack */ +#define tfm 8 +#define out_blk 12 +#define in_blk 16 -#define ekey 0 // encryption key schedule base address -#define nrnd 256 // number of rounds -#define dkey 260 // decryption key schedule base address +/* offsets in crypto_tfm structure */ +#define ekey (crypto_tfm_ctx_offset + 0) +#define nrnd (crypto_tfm_ctx_offset + 256) +#define dkey (crypto_tfm_ctx_offset + 260) // register mapping for encrypt and decrypt subroutines @@ -217,7 +217,7 @@ do_col (table, r5,r0,r1,r4, r2,r3); /* idx=r5 */ // AES (Rijndael) Encryption Subroutine -/* void aes_enc_blk(void *ctx, u8 *out_blk, const u8 *in_blk) */ +/* void aes_enc_blk(struct crypto_tfm *tfm, u8 *out_blk, const u8 *in_blk) */ .global aes_enc_blk @@ -228,7 +228,7 @@ aes_enc_blk: push %ebp - mov ctx(%esp),%ebp // pointer to context + mov tfm(%esp),%ebp // CAUTION: the order and the values used in these assigns // rely on the register mappings @@ -293,7 +293,7 @@ aes_enc_blk: ret // AES (Rijndael) Decryption Subroutine -/* void aes_dec_blk(void *ctx, u8 *out_blk, const u8 *in_blk) */ +/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out_blk, const u8 *in_blk) */ .global aes_dec_blk @@ -304,7 +304,7 @@ aes_enc_blk: aes_dec_blk: push %ebp - mov ctx(%esp),%ebp // pointer to context + mov tfm(%esp),%ebp // CAUTION: the order and the values used in these assigns // rely on the register mappings diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c index a0e033510a3..b9c7d99160f 100644 --- a/arch/i386/crypto/aes.c +++ b/arch/i386/crypto/aes.c @@ -45,8 +45,8 @@ #include #include -asmlinkage void aes_enc_blk(void *ctx, u8 *dst, const u8 *src); -asmlinkage void aes_dec_blk(void *ctx, u8 *dst, const u8 *src); +asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); +asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src); #define AES_MIN_KEY_SIZE 16 #define AES_MAX_KEY_SIZE 32 @@ -378,12 +378,12 @@ static void gen_tabs(void) k[8*(i)+11] = ss[3]; \ } -static int -aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) +static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) { int i; u32 ss[8]; - struct aes_ctx *ctx = ctx_arg; + struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; /* encryption schedule */ diff --git a/arch/i386/kernel/asm-offsets.c b/arch/i386/kernel/asm-offsets.c index 36d66e2077d..1c3a809e642 100644 --- a/arch/i386/kernel/asm-offsets.c +++ b/arch/i386/kernel/asm-offsets.c @@ -4,6 +4,7 @@ * to extract and format the required data. */ +#include #include #include #include @@ -69,4 +70,6 @@ void foo(void) DEFINE(PAGE_SIZE_asm, PAGE_SIZE); DEFINE(VSYSCALL_BASE, __fix_to_virt(FIX_VSYSCALL)); + + OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); } diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index c5ca2dc5d42..5713c7e5bd1 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -37,10 +37,10 @@ struct s390_aes_ctx { int key_len; }; -static int aes_set_key(void *ctx, const u8 *in_key, unsigned int key_len, - u32 *flags) +static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) { - struct s390_aes_ctx *sctx = ctx; + struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm); switch (key_len) { case 16: @@ -70,9 +70,9 @@ fail: return -EINVAL; } -static void aes_encrypt(void *ctx, u8 *out, const u8 *in) +static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - const struct s390_aes_ctx *sctx = ctx; + const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm); switch (sctx->key_len) { case 16: @@ -90,9 +90,9 @@ static void aes_encrypt(void *ctx, u8 *out, const u8 *in) } } -static void aes_decrypt(void *ctx, u8 *out, const u8 *in) +static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - const struct s390_aes_ctx *sctx = ctx; + const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm); switch (sctx->key_len) { case 16: diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index e3c37aa0a19..b3f7496a79b 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -44,10 +44,10 @@ struct crypt_s390_des3_192_ctx { u8 key[DES3_192_KEY_SIZE]; }; -static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, - u32 *flags) +static int des_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { - struct crypt_s390_des_ctx *dctx = ctx; + struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm); int ret; /* test if key is valid (not a weak key) */ @@ -57,16 +57,16 @@ static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, return ret; } -static void des_encrypt(void *ctx, u8 *out, const u8 *in) +static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - struct crypt_s390_des_ctx *dctx = ctx; + struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_DEA_ENCRYPT, dctx->key, out, in, DES_BLOCK_SIZE); } -static void des_decrypt(void *ctx, u8 *out, const u8 *in) +static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - struct crypt_s390_des_ctx *dctx = ctx; + struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_DEA_DECRYPT, dctx->key, out, in, DES_BLOCK_SIZE); } @@ -166,11 +166,11 @@ static struct crypto_alg des_alg = { * Implementers MUST reject keys that exhibit this property. * */ -static int des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen, - u32 *flags) +static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { int i, ret; - struct crypt_s390_des3_128_ctx *dctx = ctx; + struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); const u8* temp_key = key; if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) { @@ -186,17 +186,17 @@ static int des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen, return 0; } -static void des3_128_encrypt(void *ctx, u8 *dst, const u8 *src) +static void des3_128_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct crypt_s390_des3_128_ctx *dctx = ctx; + struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src, DES3_128_BLOCK_SIZE); } -static void des3_128_decrypt(void *ctx, u8 *dst, const u8 *src) +static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct crypt_s390_des3_128_ctx *dctx = ctx; + struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src, DES3_128_BLOCK_SIZE); @@ -302,11 +302,11 @@ static struct crypto_alg des3_128_alg = { * property. * */ -static int des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen, - u32 *flags) +static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { int i, ret; - struct crypt_s390_des3_192_ctx *dctx = ctx; + struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); const u8* temp_key = key; if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && @@ -325,17 +325,17 @@ static int des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen, return 0; } -static void des3_192_encrypt(void *ctx, u8 *dst, const u8 *src) +static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct crypt_s390_des3_192_ctx *dctx = ctx; + struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src, DES3_192_BLOCK_SIZE); } -static void des3_192_decrypt(void *ctx, u8 *dst, const u8 *src) +static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct crypt_s390_des3_192_ctx *dctx = ctx; + struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src, DES3_192_BLOCK_SIZE); diff --git a/arch/s390/crypto/sha1_s390.c b/arch/s390/crypto/sha1_s390.c index 36bb5346a8c..9d34a35b1aa 100644 --- a/arch/s390/crypto/sha1_s390.c +++ b/arch/s390/crypto/sha1_s390.c @@ -40,9 +40,9 @@ struct crypt_s390_sha1_ctx { u8 buffer[2 * SHA1_BLOCK_SIZE]; }; -static void sha1_init(void *ctx_arg) +static void sha1_init(struct crypto_tfm *tfm) { - struct crypt_s390_sha1_ctx *ctx = ctx_arg; + struct crypt_s390_sha1_ctx *ctx = crypto_tfm_ctx(tfm); static const u32 initstate[5] = { 0x67452301, 0xEFCDAB89, @@ -56,13 +56,13 @@ static void sha1_init(void *ctx_arg) ctx->buf_len = 0; } -static void -sha1_update(void *ctx, const u8 *data, unsigned int len) +static void sha1_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) { struct crypt_s390_sha1_ctx *sctx; long imd_len; - sctx = ctx; + sctx = crypto_tfm_ctx(tfm); sctx->count += len * 8; //message bit length //anything in buffer yet? -> must be completed @@ -111,10 +111,9 @@ pad_message(struct crypt_s390_sha1_ctx* sctx) } /* Add padding and return the message digest. */ -static void -sha1_final(void* ctx, u8 *out) +static void sha1_final(struct crypto_tfm *tfm, u8 *out) { - struct crypt_s390_sha1_ctx *sctx = ctx; + struct crypt_s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm); //must perform manual padding pad_message(sctx); diff --git a/arch/s390/crypto/sha256_s390.c b/arch/s390/crypto/sha256_s390.c index 2c76e7bee41..f573df30f31 100644 --- a/arch/s390/crypto/sha256_s390.c +++ b/arch/s390/crypto/sha256_s390.c @@ -31,9 +31,9 @@ struct s390_sha256_ctx { u8 buf[2 * SHA256_BLOCK_SIZE]; }; -static void sha256_init(void *ctx) +static void sha256_init(struct crypto_tfm *tfm) { - struct s390_sha256_ctx *sctx = ctx; + struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm); sctx->state[0] = 0x6a09e667; sctx->state[1] = 0xbb67ae85; @@ -46,9 +46,10 @@ static void sha256_init(void *ctx) sctx->count = 0; } -static void sha256_update(void *ctx, const u8 *data, unsigned int len) +static void sha256_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) { - struct s390_sha256_ctx *sctx = ctx; + struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm); unsigned int index; int ret; @@ -107,9 +108,9 @@ static void pad_message(struct s390_sha256_ctx* sctx) } /* Add padding and return the message digest */ -static void sha256_final(void* ctx, u8 *out) +static void sha256_final(struct crypto_tfm *tfm, u8 *out) { - struct s390_sha256_ctx *sctx = ctx; + struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm); /* must perform manual padding */ pad_message(sctx); diff --git a/arch/x86_64/crypto/aes-x86_64-asm.S b/arch/x86_64/crypto/aes-x86_64-asm.S index 483cbb23ab8..f3ba643e144 100644 --- a/arch/x86_64/crypto/aes-x86_64-asm.S +++ b/arch/x86_64/crypto/aes-x86_64-asm.S @@ -15,6 +15,10 @@ .text +#include + +#define BASE crypto_tfm_ctx_offset + #define R1 %rax #define R1E %eax #define R1X %ax @@ -46,19 +50,19 @@ #define R10 %r10 #define R11 %r11 -#define prologue(FUNC,BASE,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \ +#define prologue(FUNC,KEY,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \ .global FUNC; \ .type FUNC,@function; \ .align 8; \ FUNC: movq r1,r2; \ movq r3,r4; \ - leaq BASE+52(r8),r9; \ + leaq BASE+KEY+52(r8),r9; \ movq r10,r11; \ movl (r7),r5 ## E; \ movl 4(r7),r1 ## E; \ movl 8(r7),r6 ## E; \ movl 12(r7),r7 ## E; \ - movl (r8),r10 ## E; \ + movl BASE(r8),r10 ## E; \ xorl -48(r9),r5 ## E; \ xorl -44(r9),r1 ## E; \ xorl -40(r9),r6 ## E; \ @@ -128,8 +132,8 @@ FUNC: movq r1,r2; \ movl r3 ## E,r1 ## E; \ movl r4 ## E,r2 ## E; -#define entry(FUNC,BASE,B128,B192) \ - prologue(FUNC,BASE,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11) +#define entry(FUNC,KEY,B128,B192) \ + prologue(FUNC,KEY,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11) #define return epilogue(R8,R2,R9,R7,R5,R6,R3,R4,R11) @@ -147,7 +151,7 @@ FUNC: movq r1,r2; \ #define decrypt_final(TAB,OFFSET) \ round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4) -/* void aes_encrypt(void *ctx, u8 *out, const u8 *in) */ +/* void aes_encrypt(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */ entry(aes_encrypt,0,enc128,enc192) encrypt_round(aes_ft_tab,-96) @@ -166,7 +170,7 @@ enc128: encrypt_round(aes_ft_tab,-32) encrypt_final(aes_fl_tab,112) return -/* void aes_decrypt(void *ctx, u8 *out, const u8 *in) */ +/* void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) */ entry(aes_decrypt,240,dec128,dec192) decrypt_round(aes_it_tab,-96) diff --git a/arch/x86_64/crypto/aes.c b/arch/x86_64/crypto/aes.c index 6f77e7700d3..d6f8e0463b5 100644 --- a/arch/x86_64/crypto/aes.c +++ b/arch/x86_64/crypto/aes.c @@ -227,10 +227,10 @@ static void __init gen_tabs(void) t ^= E_KEY[8 * i + 7]; E_KEY[8 * i + 15] = t; \ } -static int aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, - u32 *flags) +static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) { - struct aes_ctx *ctx = ctx_arg; + struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; u32 i, j, t, u, v, w; @@ -283,8 +283,8 @@ static int aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, return 0; } -extern void aes_encrypt(void *ctx_arg, u8 *out, const u8 *in); -extern void aes_decrypt(void *ctx_arg, u8 *out, const u8 *in); +extern void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); +extern void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); static struct crypto_alg aes_alg = { .cra_name = "aes", diff --git a/arch/x86_64/kernel/asm-offsets.c b/arch/x86_64/kernel/asm-offsets.c index 38834bbbae1..96687e2beb2 100644 --- a/arch/x86_64/kernel/asm-offsets.c +++ b/arch/x86_64/kernel/asm-offsets.c @@ -4,6 +4,7 @@ * and format the required data. */ +#include #include #include #include @@ -68,5 +69,7 @@ int main(void) DEFINE(pbe_next, offsetof(struct pbe, next)); BLANK(); DEFINE(TSS_ist, offsetof(struct tss_struct, ist)); + BLANK(); + DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); return 0; } diff --git a/crypto/aes.c b/crypto/aes.c index a5017292e06..a038711831e 100644 --- a/crypto/aes.c +++ b/crypto/aes.c @@ -248,10 +248,10 @@ gen_tabs (void) t ^= E_KEY[8 * i + 7]; E_KEY[8 * i + 15] = t; \ } -static int -aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) +static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) { - struct aes_ctx *ctx = ctx_arg; + struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; u32 i, t, u, v, w; @@ -318,9 +318,9 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) f_rl(bo, bi, 2, k); \ f_rl(bo, bi, 3, k) -static void aes_encrypt(void *ctx_arg, u8 *out, const u8 *in) +static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - const struct aes_ctx *ctx = ctx_arg; + const struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *src = (const __le32 *)in; __le32 *dst = (__le32 *)out; u32 b0[4], b1[4]; @@ -373,9 +373,9 @@ static void aes_encrypt(void *ctx_arg, u8 *out, const u8 *in) i_rl(bo, bi, 2, k); \ i_rl(bo, bi, 3, k) -static void aes_decrypt(void *ctx_arg, u8 *out, const u8 *in) +static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - const struct aes_ctx *ctx = ctx_arg; + const struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *src = (const __le32 *)in; __le32 *dst = (__le32 *)out; u32 b0[4], b1[4]; diff --git a/crypto/anubis.c b/crypto/anubis.c index 2c796bdb91a..7e2e1a29800 100644 --- a/crypto/anubis.c +++ b/crypto/anubis.c @@ -460,16 +460,15 @@ static const u32 rc[] = { 0xf726ffedU, 0xe89d6f8eU, 0x19a0f089U, }; -static int anubis_setkey(void *ctx_arg, const u8 *in_key, +static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len, u32 *flags) { + struct anubis_ctx *ctx = crypto_tfm_ctx(tfm); const __be32 *key = (const __be32 *)in_key; int N, R, i, r; u32 kappa[ANUBIS_MAX_N]; u32 inter[ANUBIS_MAX_N]; - struct anubis_ctx *ctx = ctx_arg; - switch (key_len) { case 16: case 20: case 24: case 28: @@ -660,15 +659,15 @@ static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4], dst[i] = cpu_to_be32(inter[i]); } -static void anubis_encrypt(void *ctx_arg, u8 *dst, const u8 *src) +static void anubis_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct anubis_ctx *ctx = ctx_arg; + struct anubis_ctx *ctx = crypto_tfm_ctx(tfm); anubis_crypt(ctx->E, dst, src, ctx->R); } -static void anubis_decrypt(void *ctx_arg, u8 *dst, const u8 *src) +static void anubis_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct anubis_ctx *ctx = ctx_arg; + struct anubis_ctx *ctx = crypto_tfm_ctx(tfm); anubis_crypt(ctx->D, dst, src, ctx->R); } diff --git a/crypto/arc4.c b/crypto/arc4.c index 9efbcaae88a..5edc6a65b98 100644 --- a/crypto/arc4.c +++ b/crypto/arc4.c @@ -24,9 +24,10 @@ struct arc4_ctx { u8 x, y; }; -static int arc4_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) +static int arc4_set_key(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) { - struct arc4_ctx *ctx = ctx_arg; + struct arc4_ctx *ctx = crypto_tfm_ctx(tfm); int i, j = 0, k = 0; ctx->x = 1; @@ -48,9 +49,9 @@ static int arc4_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u return 0; } -static void arc4_crypt(void *ctx_arg, u8 *out, const u8 *in) +static void arc4_crypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - struct arc4_ctx *ctx = ctx_arg; + struct arc4_ctx *ctx = crypto_tfm_ctx(tfm); u8 *const S = ctx->S; u8 x = ctx->x; diff --git a/crypto/blowfish.c b/crypto/blowfish.c index 7f710b201f2..490265f42b3 100644 --- a/crypto/blowfish.c +++ b/crypto/blowfish.c @@ -349,7 +349,7 @@ static void encrypt_block(struct bf_ctx *bctx, u32 *dst, u32 *src) dst[1] = yl; } -static void bf_encrypt(void *ctx, u8 *dst, const u8 *src) +static void bf_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { const __be32 *in_blk = (const __be32 *)src; __be32 *const out_blk = (__be32 *)dst; @@ -357,17 +357,18 @@ static void bf_encrypt(void *ctx, u8 *dst, const u8 *src) in32[0] = be32_to_cpu(in_blk[0]); in32[1] = be32_to_cpu(in_blk[1]); - encrypt_block(ctx, out32, in32); + encrypt_block(crypto_tfm_ctx(tfm), out32, in32); out_blk[0] = cpu_to_be32(out32[0]); out_blk[1] = cpu_to_be32(out32[1]); } -static void bf_decrypt(void *ctx, u8 *dst, const u8 *src) +static void bf_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { + struct bf_ctx *ctx = crypto_tfm_ctx(tfm); const __be32 *in_blk = (const __be32 *)src; __be32 *const out_blk = (__be32 *)dst; - const u32 *P = ((struct bf_ctx *)ctx)->p; - const u32 *S = ((struct bf_ctx *)ctx)->s; + const u32 *P = ctx->p; + const u32 *S = ctx->s; u32 yl = be32_to_cpu(in_blk[0]); u32 yr = be32_to_cpu(in_blk[1]); @@ -398,12 +399,14 @@ static void bf_decrypt(void *ctx, u8 *dst, const u8 *src) /* * Calculates the blowfish S and P boxes for encryption and decryption. */ -static int bf_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags) +static int bf_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { + struct bf_ctx *ctx = crypto_tfm_ctx(tfm); + u32 *P = ctx->p; + u32 *S = ctx->s; short i, j, count; u32 data[2], temp; - u32 *P = ((struct bf_ctx *)ctx)->p; - u32 *S = ((struct bf_ctx *)ctx)->s; /* Copy the initialization s-boxes */ for (i = 0, count = 0; i < 256; i++) diff --git a/crypto/cast5.c b/crypto/cast5.c index 8834c8580c0..08eef58c1d3 100644 --- a/crypto/cast5.c +++ b/crypto/cast5.c @@ -577,9 +577,9 @@ static const u32 sb8[256] = { (((s1[I >> 24] + s2[(I>>16)&0xff]) ^ s3[(I>>8)&0xff]) - s4[I&0xff]) ) -static void cast5_encrypt(void *ctx, u8 * outbuf, const u8 * inbuf) +static void cast5_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) { - struct cast5_ctx *c = (struct cast5_ctx *) ctx; + struct cast5_ctx *c = crypto_tfm_ctx(tfm); const __be32 *src = (const __be32 *)inbuf; __be32 *dst = (__be32 *)outbuf; u32 l, r, t; @@ -642,9 +642,9 @@ static void cast5_encrypt(void *ctx, u8 * outbuf, const u8 * inbuf) dst[1] = cpu_to_be32(l); } -static void cast5_decrypt(void *ctx, u8 * outbuf, const u8 * inbuf) +static void cast5_decrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) { - struct cast5_ctx *c = (struct cast5_ctx *) ctx; + struct cast5_ctx *c = crypto_tfm_ctx(tfm); const __be32 *src = (const __be32 *)inbuf; __be32 *dst = (__be32 *)outbuf; u32 l, r, t; @@ -769,15 +769,15 @@ static void key_schedule(u32 * x, u32 * z, u32 * k) } -static int -cast5_setkey(void *ctx, const u8 * key, unsigned key_len, u32 * flags) +static int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned key_len, u32 *flags) { + struct cast5_ctx *c = crypto_tfm_ctx(tfm); int i; u32 x[4]; u32 z[4]; u32 k[16]; __be32 p_key[4]; - struct cast5_ctx *c = (struct cast5_ctx *) ctx; if (key_len < 5 || key_len > 16) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; diff --git a/crypto/cast6.c b/crypto/cast6.c index 9e28740ba77..08e33bfc3ad 100644 --- a/crypto/cast6.c +++ b/crypto/cast6.c @@ -381,13 +381,13 @@ static inline void W(u32 *key, unsigned int i) { key[7] ^= F2(key[0], Tr[i % 4][7], Tm[i][7]); } -static int -cast6_setkey(void *ctx, const u8 * in_key, unsigned key_len, u32 * flags) +static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key, + unsigned key_len, u32 *flags) { int i; u32 key[8]; __be32 p_key[8]; /* padded key */ - struct cast6_ctx *c = (struct cast6_ctx *) ctx; + struct cast6_ctx *c = crypto_tfm_ctx(tfm); if (key_len < 16 || key_len > 32 || key_len % 4 != 0) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; @@ -444,8 +444,9 @@ static inline void QBAR (u32 * block, u8 * Kr, u32 * Km) { block[2] ^= F1(block[3], Kr[0], Km[0]); } -static void cast6_encrypt (void * ctx, u8 * outbuf, const u8 * inbuf) { - struct cast6_ctx * c = (struct cast6_ctx *)ctx; +static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) +{ + struct cast6_ctx *c = crypto_tfm_ctx(tfm); const __be32 *src = (const __be32 *)inbuf; __be32 *dst = (__be32 *)outbuf; u32 block[4]; @@ -476,8 +477,8 @@ static void cast6_encrypt (void * ctx, u8 * outbuf, const u8 * inbuf) { dst[3] = cpu_to_be32(block[3]); } -static void cast6_decrypt (void * ctx, u8 * outbuf, const u8 * inbuf) { - struct cast6_ctx * c = (struct cast6_ctx *)ctx; +static void cast6_decrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) { + struct cast6_ctx * c = crypto_tfm_ctx(tfm); const __be32 *src = (const __be32 *)inbuf; __be32 *dst = (__be32 *)outbuf; u32 block[4]; diff --git a/crypto/cipher.c b/crypto/cipher.c index 65bcea0cd17..b899eb97abd 100644 --- a/crypto/cipher.c +++ b/crypto/cipher.c @@ -187,7 +187,7 @@ static unsigned int cbc_process_encrypt(const struct cipher_desc *desc, void (*xor)(u8 *, const u8 *) = tfm->crt_u.cipher.cit_xor_block; int bsize = crypto_tfm_alg_blocksize(tfm); - void (*fn)(void *, u8 *, const u8 *) = desc->crfn; + void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn; u8 *iv = desc->info; unsigned int done = 0; @@ -195,7 +195,7 @@ static unsigned int cbc_process_encrypt(const struct cipher_desc *desc, do { xor(iv, src); - fn(crypto_tfm_ctx(tfm), dst, iv); + fn(tfm, dst, iv); memcpy(iv, dst, bsize); src += bsize; @@ -218,7 +218,7 @@ static unsigned int cbc_process_decrypt(const struct cipher_desc *desc, u8 *buf = (u8 *)ALIGN((unsigned long)stack, alignmask + 1); u8 **dst_p = src == dst ? &buf : &dst; - void (*fn)(void *, u8 *, const u8 *) = desc->crfn; + void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn; u8 *iv = desc->info; unsigned int done = 0; @@ -227,7 +227,7 @@ static unsigned int cbc_process_decrypt(const struct cipher_desc *desc, do { u8 *tmp_dst = *dst_p; - fn(crypto_tfm_ctx(tfm), tmp_dst, src); + fn(tfm, tmp_dst, src); xor(tmp_dst, iv); memcpy(iv, src, bsize); if (tmp_dst != dst) @@ -245,13 +245,13 @@ static unsigned int ecb_process(const struct cipher_desc *desc, u8 *dst, { struct crypto_tfm *tfm = desc->tfm; int bsize = crypto_tfm_alg_blocksize(tfm); - void (*fn)(void *, u8 *, const u8 *) = desc->crfn; + void (*fn)(struct crypto_tfm *, u8 *, const u8 *) = desc->crfn; unsigned int done = 0; nbytes -= bsize; do { - fn(crypto_tfm_ctx(tfm), dst, src); + fn(tfm, dst, src); src += bsize; dst += bsize; @@ -268,7 +268,7 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } else - return cia->cia_setkey(crypto_tfm_ctx(tfm), key, keylen, + return cia->cia_setkey(tfm, key, keylen, &tfm->crt_flags); } diff --git a/crypto/compress.c b/crypto/compress.c index eb36d9364da..c12fc0c41da 100644 --- a/crypto/compress.c +++ b/crypto/compress.c @@ -22,8 +22,7 @@ static int crypto_compress(struct crypto_tfm *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen) { - return tfm->__crt_alg->cra_compress.coa_compress(crypto_tfm_ctx(tfm), - src, slen, dst, + return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst, dlen); } @@ -31,8 +30,7 @@ static int crypto_decompress(struct crypto_tfm *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen) { - return tfm->__crt_alg->cra_compress.coa_decompress(crypto_tfm_ctx(tfm), - src, slen, dst, + return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst, dlen); } diff --git a/crypto/crc32c.c b/crypto/crc32c.c index 953362423a5..f2660123aeb 100644 --- a/crypto/crc32c.c +++ b/crypto/crc32c.c @@ -31,9 +31,9 @@ struct chksum_ctx { * crc using table. */ -static void chksum_init(void *ctx) +static void chksum_init(struct crypto_tfm *tfm) { - struct chksum_ctx *mctx = ctx; + struct chksum_ctx *mctx = crypto_tfm_ctx(tfm); mctx->crc = ~(u32)0; /* common usage */ } @@ -43,10 +43,10 @@ static void chksum_init(void *ctx) * If your algorithm starts with ~0, then XOR with ~0 before you set * the seed. */ -static int chksum_setkey(void *ctx, const u8 *key, unsigned int keylen, - u32 *flags) +static int chksum_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { - struct chksum_ctx *mctx = ctx; + struct chksum_ctx *mctx = crypto_tfm_ctx(tfm); if (keylen != sizeof(mctx->crc)) { if (flags) @@ -57,9 +57,10 @@ static int chksum_setkey(void *ctx, const u8 *key, unsigned int keylen, return 0; } -static void chksum_update(void *ctx, const u8 *data, unsigned int length) +static void chksum_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int length) { - struct chksum_ctx *mctx = ctx; + struct chksum_ctx *mctx = crypto_tfm_ctx(tfm); u32 mcrc; mcrc = crc32c(mctx->crc, data, (size_t)length); @@ -67,9 +68,9 @@ static void chksum_update(void *ctx, const u8 *data, unsigned int length) mctx->crc = mcrc; } -static void chksum_final(void *ctx, u8 *out) +static void chksum_final(struct crypto_tfm *tfm, u8 *out) { - struct chksum_ctx *mctx = ctx; + struct chksum_ctx *mctx = crypto_tfm_ctx(tfm); u32 mcrc = (mctx->crc ^ ~(u32)0); *(u32 *)out = __le32_to_cpu(mcrc); diff --git a/crypto/crypto_null.c b/crypto/crypto_null.c index 3fcf6e887e8..a0d956b5294 100644 --- a/crypto/crypto_null.c +++ b/crypto/crypto_null.c @@ -27,8 +27,8 @@ #define NULL_BLOCK_SIZE 1 #define NULL_DIGEST_SIZE 0 -static int null_compress(void *ctx, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen) +static int null_compress(struct crypto_tfm *tfm, const u8 *src, + unsigned int slen, u8 *dst, unsigned int *dlen) { if (slen > *dlen) return -EINVAL; @@ -37,20 +37,21 @@ static int null_compress(void *ctx, const u8 *src, unsigned int slen, return 0; } -static void null_init(void *ctx) +static void null_init(struct crypto_tfm *tfm) { } -static void null_update(void *ctx, const u8 *data, unsigned int len) +static void null_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) { } -static void null_final(void *ctx, u8 *out) +static void null_final(struct crypto_tfm *tfm, u8 *out) { } -static int null_setkey(void *ctx, const u8 *key, - unsigned int keylen, u32 *flags) +static int null_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { return 0; } -static void null_crypt(void *ctx, u8 *dst, const u8 *src) +static void null_crypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { memcpy(dst, src, NULL_BLOCK_SIZE); } diff --git a/crypto/deflate.c b/crypto/deflate.c index f209368d62a..5dd2404ae5b 100644 --- a/crypto/deflate.c +++ b/crypto/deflate.c @@ -102,8 +102,9 @@ static void deflate_decomp_exit(struct deflate_ctx *ctx) kfree(ctx->decomp_stream.workspace); } -static int deflate_init(void *ctx) +static int deflate_init(struct crypto_tfm *tfm) { + struct deflate_ctx *ctx = crypto_tfm_ctx(tfm); int ret; ret = deflate_comp_init(ctx); @@ -116,17 +117,19 @@ out: return ret; } -static void deflate_exit(void *ctx) +static void deflate_exit(struct crypto_tfm *tfm) { + struct deflate_ctx *ctx = crypto_tfm_ctx(tfm); + deflate_comp_exit(ctx); deflate_decomp_exit(ctx); } -static int deflate_compress(void *ctx, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen) +static int deflate_compress(struct crypto_tfm *tfm, const u8 *src, + unsigned int slen, u8 *dst, unsigned int *dlen) { int ret = 0; - struct deflate_ctx *dctx = ctx; + struct deflate_ctx *dctx = crypto_tfm_ctx(tfm); struct z_stream_s *stream = &dctx->comp_stream; ret = zlib_deflateReset(stream); @@ -151,12 +154,12 @@ out: return ret; } -static int deflate_decompress(void *ctx, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen) +static int deflate_decompress(struct crypto_tfm *tfm, const u8 *src, + unsigned int slen, u8 *dst, unsigned int *dlen) { int ret = 0; - struct deflate_ctx *dctx = ctx; + struct deflate_ctx *dctx = crypto_tfm_ctx(tfm); struct z_stream_s *stream = &dctx->decomp_stream; ret = zlib_inflateReset(stream); diff --git a/crypto/des.c b/crypto/des.c index 2d74cab40c3..a9d3c235a6a 100644 --- a/crypto/des.c +++ b/crypto/des.c @@ -783,9 +783,10 @@ static void dkey(u32 *pe, const u8 *k) } } -static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags) +static int des_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { - struct des_ctx *dctx = ctx; + struct des_ctx *dctx = crypto_tfm_ctx(tfm); u32 tmp[DES_EXPKEY_WORDS]; int ret; @@ -803,9 +804,10 @@ static int des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags) return 0; } -static void des_encrypt(void *ctx, u8 *dst, const u8 *src) +static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - const u32 *K = ((struct des_ctx *)ctx)->expkey; + struct des_ctx *ctx = crypto_tfm_ctx(tfm); + const u32 *K = ctx->expkey; const __le32 *s = (const __le32 *)src; __le32 *d = (__le32 *)dst; u32 L, R, A, B; @@ -825,9 +827,10 @@ static void des_encrypt(void *ctx, u8 *dst, const u8 *src) d[1] = cpu_to_le32(L); } -static void des_decrypt(void *ctx, u8 *dst, const u8 *src) +static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - const u32 *K = ((struct des_ctx *)ctx)->expkey + DES_EXPKEY_WORDS - 2; + struct des_ctx *ctx = crypto_tfm_ctx(tfm); + const u32 *K = ctx->expkey + DES_EXPKEY_WORDS - 2; const __le32 *s = (const __le32 *)src; __le32 *d = (__le32 *)dst; u32 L, R, A, B; @@ -860,11 +863,11 @@ static void des_decrypt(void *ctx, u8 *dst, const u8 *src) * property. * */ -static int des3_ede_setkey(void *ctx, const u8 *key, +static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen, u32 *flags) { const u32 *K = (const u32 *)key; - struct des3_ede_ctx *dctx = ctx; + struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm); u32 *expkey = dctx->expkey; if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) || @@ -881,9 +884,9 @@ static int des3_ede_setkey(void *ctx, const u8 *key, return 0; } -static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src) +static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct des3_ede_ctx *dctx = ctx; + struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm); const u32 *K = dctx->expkey; const __le32 *s = (const __le32 *)src; __le32 *d = (__le32 *)dst; @@ -912,9 +915,9 @@ static void des3_ede_encrypt(void *ctx, u8 *dst, const u8 *src) d[1] = cpu_to_le32(L); } -static void des3_ede_decrypt(void *ctx, u8 *dst, const u8 *src) +static void des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct des3_ede_ctx *dctx = ctx; + struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm); const u32 *K = dctx->expkey + DES3_EDE_EXPKEY_WORDS - 2; const __le32 *s = (const __le32 *)src; __le32 *d = (__le32 *)dst; diff --git a/crypto/digest.c b/crypto/digest.c index 062d0a5a2c8..2d9d509c2c5 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -20,7 +20,7 @@ static void init(struct crypto_tfm *tfm) { - tfm->__crt_alg->cra_digest.dia_init(crypto_tfm_ctx(tfm)); + tfm->__crt_alg->cra_digest.dia_init(tfm); } static void update(struct crypto_tfm *tfm, @@ -46,16 +46,14 @@ static void update(struct crypto_tfm *tfm, unsigned int bytes = alignmask + 1 - (offset & alignmask); bytes = min(bytes, bytes_from_page); - tfm->__crt_alg->cra_digest.dia_update - (crypto_tfm_ctx(tfm), p, - bytes); + tfm->__crt_alg->cra_digest.dia_update(tfm, p, + bytes); p += bytes; bytes_from_page -= bytes; l -= bytes; } - tfm->__crt_alg->cra_digest.dia_update - (crypto_tfm_ctx(tfm), p, - bytes_from_page); + tfm->__crt_alg->cra_digest.dia_update(tfm, p, + bytes_from_page); crypto_kunmap(src, 0); crypto_yield(tfm); offset = 0; @@ -83,8 +81,7 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) u32 flags; if (tfm->__crt_alg->cra_digest.dia_setkey == NULL) return -ENOSYS; - return tfm->__crt_alg->cra_digest.dia_setkey(crypto_tfm_ctx(tfm), - key, keylen, &flags); + return tfm->__crt_alg->cra_digest.dia_setkey(tfm, key, keylen, &flags); } static void digest(struct crypto_tfm *tfm, diff --git a/crypto/khazad.c b/crypto/khazad.c index 5b8dc9a2d37..d4c9d3657b3 100644 --- a/crypto/khazad.c +++ b/crypto/khazad.c @@ -754,10 +754,10 @@ static const u64 c[KHAZAD_ROUNDS + 1] = { 0xccc41d14c363da5dULL, 0x5fdc7dcd7f5a6c5cULL, 0xf726ffede89d6f8eULL }; -static int khazad_setkey(void *ctx_arg, const u8 *in_key, - unsigned int key_len, u32 *flags) +static int khazad_setkey(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) { - struct khazad_ctx *ctx = ctx_arg; + struct khazad_ctx *ctx = crypto_tfm_ctx(tfm); const __be32 *key = (const __be32 *)in_key; int r; const u64 *S = T7; @@ -841,15 +841,15 @@ static void khazad_crypt(const u64 roundKey[KHAZAD_ROUNDS + 1], *dst = cpu_to_be64(state); } -static void khazad_encrypt(void *ctx_arg, u8 *dst, const u8 *src) +static void khazad_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct khazad_ctx *ctx = ctx_arg; + struct khazad_ctx *ctx = crypto_tfm_ctx(tfm); khazad_crypt(ctx->E, dst, src); } -static void khazad_decrypt(void *ctx_arg, u8 *dst, const u8 *src) +static void khazad_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { - struct khazad_ctx *ctx = ctx_arg; + struct khazad_ctx *ctx = crypto_tfm_ctx(tfm); khazad_crypt(ctx->D, dst, src); } diff --git a/crypto/md4.c b/crypto/md4.c index a2d6df5c0f8..c1bc71bdc16 100644 --- a/crypto/md4.c +++ b/crypto/md4.c @@ -152,9 +152,9 @@ static inline void md4_transform_helper(struct md4_ctx *ctx) md4_transform(ctx->hash, ctx->block); } -static void md4_init(void *ctx) +static void md4_init(struct crypto_tfm *tfm) { - struct md4_ctx *mctx = ctx; + struct md4_ctx *mctx = crypto_tfm_ctx(tfm); mctx->hash[0] = 0x67452301; mctx->hash[1] = 0xefcdab89; @@ -163,9 +163,9 @@ static void md4_init(void *ctx) mctx->byte_count = 0; } -static void md4_update(void *ctx, const u8 *data, unsigned int len) +static void md4_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) { - struct md4_ctx *mctx = ctx; + struct md4_ctx *mctx = crypto_tfm_ctx(tfm); const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f); mctx->byte_count += len; @@ -193,9 +193,9 @@ static void md4_update(void *ctx, const u8 *data, unsigned int len) memcpy(mctx->block, data, len); } -static void md4_final(void *ctx, u8 *out) +static void md4_final(struct crypto_tfm *tfm, u8 *out) { - struct md4_ctx *mctx = ctx; + struct md4_ctx *mctx = crypto_tfm_ctx(tfm); const unsigned int offset = mctx->byte_count & 0x3f; char *p = (char *)mctx->block + offset; int padding = 56 - (offset + 1); diff --git a/crypto/md5.c b/crypto/md5.c index 7f041aef5da..93d18e8b3d5 100644 --- a/crypto/md5.c +++ b/crypto/md5.c @@ -147,9 +147,9 @@ static inline void md5_transform_helper(struct md5_ctx *ctx) md5_transform(ctx->hash, ctx->block); } -static void md5_init(void *ctx) +static void md5_init(struct crypto_tfm *tfm) { - struct md5_ctx *mctx = ctx; + struct md5_ctx *mctx = crypto_tfm_ctx(tfm); mctx->hash[0] = 0x67452301; mctx->hash[1] = 0xefcdab89; @@ -158,9 +158,9 @@ static void md5_init(void *ctx) mctx->byte_count = 0; } -static void md5_update(void *ctx, const u8 *data, unsigned int len) +static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) { - struct md5_ctx *mctx = ctx; + struct md5_ctx *mctx = crypto_tfm_ctx(tfm); const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f); mctx->byte_count += len; @@ -188,9 +188,9 @@ static void md5_update(void *ctx, const u8 *data, unsigned int len) memcpy(mctx->block, data, len); } -static void md5_final(void *ctx, u8 *out) +static void md5_final(struct crypto_tfm *tfm, u8 *out) { - struct md5_ctx *mctx = ctx; + struct md5_ctx *mctx = crypto_tfm_ctx(tfm); const unsigned int offset = mctx->byte_count & 0x3f; char *p = (char *)mctx->block + offset; int padding = 56 - (offset + 1); diff --git a/crypto/michael_mic.c b/crypto/michael_mic.c index 701f859ed76..d061da21cfd 100644 --- a/crypto/michael_mic.c +++ b/crypto/michael_mic.c @@ -45,16 +45,17 @@ do { \ } while (0) -static void michael_init(void *ctx) +static void michael_init(struct crypto_tfm *tfm) { - struct michael_mic_ctx *mctx = ctx; + struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); mctx->pending_len = 0; } -static void michael_update(void *ctx, const u8 *data, unsigned int len) +static void michael_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) { - struct michael_mic_ctx *mctx = ctx; + struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); const __le32 *src; if (mctx->pending_len) { @@ -90,9 +91,9 @@ static void michael_update(void *ctx, const u8 *data, unsigned int len) } -static void michael_final(void *ctx, u8 *out) +static void michael_final(struct crypto_tfm *tfm, u8 *out) { - struct michael_mic_ctx *mctx = ctx; + struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); u8 *data = mctx->pending; __le32 *dst = (__le32 *)out; @@ -121,10 +122,10 @@ static void michael_final(void *ctx, u8 *out) } -static int michael_setkey(void *ctx, const u8 *key, unsigned int keylen, - u32 *flags) +static int michael_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { - struct michael_mic_ctx *mctx = ctx; + struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); const __le32 *data = (const __le32 *)key; if (keylen != 8) { diff --git a/crypto/serpent.c b/crypto/serpent.c index e366406ab49..de60cdddbf4 100644 --- a/crypto/serpent.c +++ b/crypto/serpent.c @@ -215,9 +215,11 @@ struct serpent_ctx { }; -static int serpent_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags) +static int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { - u32 *k = ((struct serpent_ctx *)ctx)->expkey; + struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); + u32 *k = ctx->expkey; u8 *k8 = (u8 *)k; u32 r0,r1,r2,r3,r4; int i; @@ -365,10 +367,11 @@ static int serpent_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *fl return 0; } -static void serpent_encrypt(void *ctx, u8 *dst, const u8 *src) +static void serpent_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { + struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); const u32 - *k = ((struct serpent_ctx *)ctx)->expkey, + *k = ctx->expkey, *s = (const u32 *)src; u32 *d = (u32 *)dst, r0, r1, r2, r3, r4; @@ -423,8 +426,9 @@ static void serpent_encrypt(void *ctx, u8 *dst, const u8 *src) d[3] = cpu_to_le32(r3); } -static void serpent_decrypt(void *ctx, u8 *dst, const u8 *src) +static void serpent_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { + struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); const u32 *k = ((struct serpent_ctx *)ctx)->expkey, *s = (const u32 *)src; @@ -492,7 +496,8 @@ static struct crypto_alg serpent_alg = { .cia_decrypt = serpent_decrypt } } }; -static int tnepres_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags) +static int tnepres_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int keylen, u32 *flags) { u8 rev_key[SERPENT_MAX_KEY_SIZE]; int i; @@ -506,10 +511,10 @@ static int tnepres_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *fl for (i = 0; i < keylen; ++i) rev_key[keylen - i - 1] = key[i]; - return serpent_setkey(ctx, rev_key, keylen, flags); + return serpent_setkey(tfm, rev_key, keylen, flags); } -static void tnepres_encrypt(void *ctx, u8 *dst, const u8 *src) +static void tnepres_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { const u32 * const s = (const u32 * const)src; u32 * const d = (u32 * const)dst; @@ -521,7 +526,7 @@ static void tnepres_encrypt(void *ctx, u8 *dst, const u8 *src) rs[2] = swab32(s[1]); rs[3] = swab32(s[0]); - serpent_encrypt(ctx, (u8 *)rd, (u8 *)rs); + serpent_encrypt(tfm, (u8 *)rd, (u8 *)rs); d[0] = swab32(rd[3]); d[1] = swab32(rd[2]); @@ -529,7 +534,7 @@ static void tnepres_encrypt(void *ctx, u8 *dst, const u8 *src) d[3] = swab32(rd[0]); } -static void tnepres_decrypt(void *ctx, u8 *dst, const u8 *src) +static void tnepres_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { const u32 * const s = (const u32 * const)src; u32 * const d = (u32 * const)dst; @@ -541,7 +546,7 @@ static void tnepres_decrypt(void *ctx, u8 *dst, const u8 *src) rs[2] = swab32(s[1]); rs[3] = swab32(s[0]); - serpent_decrypt(ctx, (u8 *)rd, (u8 *)rs); + serpent_decrypt(tfm, (u8 *)rd, (u8 *)rs); d[0] = swab32(rd[3]); d[1] = swab32(rd[2]); diff --git a/crypto/sha1.c b/crypto/sha1.c index b96f57d95a8..6c77b689f87 100644 --- a/crypto/sha1.c +++ b/crypto/sha1.c @@ -34,9 +34,9 @@ struct sha1_ctx { u8 buffer[64]; }; -static void sha1_init(void *ctx) +static void sha1_init(struct crypto_tfm *tfm) { - struct sha1_ctx *sctx = ctx; + struct sha1_ctx *sctx = crypto_tfm_ctx(tfm); static const struct sha1_ctx initstate = { 0, { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0 }, @@ -46,9 +46,10 @@ static void sha1_init(void *ctx) *sctx = initstate; } -static void sha1_update(void *ctx, const u8 *data, unsigned int len) +static void sha1_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) { - struct sha1_ctx *sctx = ctx; + struct sha1_ctx *sctx = crypto_tfm_ctx(tfm); unsigned int partial, done; const u8 *src; @@ -80,9 +81,9 @@ static void sha1_update(void *ctx, const u8 *data, unsigned int len) /* Add padding and return the message digest. */ -static void sha1_final(void* ctx, u8 *out) +static void sha1_final(struct crypto_tfm *tfm, u8 *out) { - struct sha1_ctx *sctx = ctx; + struct sha1_ctx *sctx = crypto_tfm_ctx(tfm); __be32 *dst = (__be32 *)out; u32 i, index, padlen; __be64 bits; @@ -93,10 +94,10 @@ static void sha1_final(void* ctx, u8 *out) /* Pad out to 56 mod 64 */ index = sctx->count & 0x3f; padlen = (index < 56) ? (56 - index) : ((64+56) - index); - sha1_update(sctx, padding, padlen); + sha1_update(tfm, padding, padlen); /* Append length */ - sha1_update(sctx, (const u8 *)&bits, sizeof(bits)); + sha1_update(tfm, (const u8 *)&bits, sizeof(bits)); /* Store state in digest */ for (i = 0; i < 5; i++) diff --git a/crypto/sha256.c b/crypto/sha256.c index 4533a056489..bc71d85a7d0 100644 --- a/crypto/sha256.c +++ b/crypto/sha256.c @@ -230,9 +230,9 @@ static void sha256_transform(u32 *state, const u8 *input) memset(W, 0, 64 * sizeof(u32)); } -static void sha256_init(void *ctx) +static void sha256_init(struct crypto_tfm *tfm) { - struct sha256_ctx *sctx = ctx; + struct sha256_ctx *sctx = crypto_tfm_ctx(tfm); sctx->state[0] = H0; sctx->state[1] = H1; sctx->state[2] = H2; @@ -244,9 +244,10 @@ static void sha256_init(void *ctx) sctx->count[0] = sctx->count[1] = 0; } -static void sha256_update(void *ctx, const u8 *data, unsigned int len) +static void sha256_update(struct crypto_tfm *tfm, const u8 *data, + unsigned int len) { - struct sha256_ctx *sctx = ctx; + struct sha256_ctx *sctx = crypto_tfm_ctx(tfm); unsigned int i, index, part_len; /* Compute number of bytes mod 128 */ @@ -276,9 +277,9 @@ static void sha256_update(void *ctx, const u8 *data, unsigned int len) memcpy(&sctx->buf[index], &data[i], len-i); } -static void sha256_final(void* ctx, u8 *out) +static void sha256_final(struct crypto_tfm *tfm, u8 *out) { - struct sha256_ctx *sctx = ctx; + struct sha256_ctx *sctx = crypto_tfm_ctx(tfm); __be32 *dst = (__be32 *)out; __be32 bits[2]; unsigned int index, pad_len; @@ -292,10 +293,10 @@ static void sha256_final(void* ctx, u8 *out) /* Pad out to 56 mod 64. */ index = (sctx->count[0] >> 3) & 0x3f; pad_len = (index < 56) ? (56 - index) : ((64+56) - index); - sha256_update(sctx, padding, pad_len); + sha256_update(tfm, padding, pad_len); /* Append length (before padding) */ - sha256_update(sctx, (const u8 *)bits, sizeof(bits)); + sha256_update(tfm, (const u8 *)bits, sizeof(bits)); /* Store state in digest */ for (i = 0; i < 8; i++) diff --git a/crypto/sha512.c b/crypto/sha512.c index bc77a66d9de..2dfe7f170b4 100644 --- a/crypto/sha512.c +++ b/crypto/sha512.c @@ -161,9 +161,9 @@ sha512_transform(u64 *state, u64 *W, const u8 *input) } static void -sha512_init(void *ctx) +sha512_init(struct crypto_tfm *tfm) { - struct sha512_ctx *sctx = ctx; + struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); sctx->state[0] = H0; sctx->state[1] = H1; sctx->state[2] = H2; @@ -176,9 +176,9 @@ sha512_init(void *ctx) } static void -sha384_init(void *ctx) +sha384_init(struct crypto_tfm *tfm) { - struct sha512_ctx *sctx = ctx; + struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); sctx->state[0] = HP0; sctx->state[1] = HP1; sctx->state[2] = HP2; @@ -191,9 +191,9 @@ sha384_init(void *ctx) } static void -sha512_update(void *ctx, const u8 *data, unsigned int len) +sha512_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) { - struct sha512_ctx *sctx = ctx; + struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); unsigned int i, index, part_len; @@ -231,9 +231,9 @@ sha512_update(void *ctx, const u8 *data, unsigned int len) } static void -sha512_final(void *ctx, u8 *hash) +sha512_final(struct crypto_tfm *tfm, u8 *hash) { - struct sha512_ctx *sctx = ctx; + struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); static u8 padding[128] = { 0x80, }; __be64 *dst = (__be64 *)hash; __be32 bits[4]; @@ -249,10 +249,10 @@ sha512_final(void *ctx, u8 *hash) /* Pad out to 112 mod 128. */ index = (sctx->count[0] >> 3) & 0x7f; pad_len = (index < 112) ? (112 - index) : ((128+112) - index); - sha512_update(sctx, padding, pad_len); + sha512_update(tfm, padding, pad_len); /* Append length (before padding) */ - sha512_update(sctx, (const u8 *)bits, sizeof(bits)); + sha512_update(tfm, (const u8 *)bits, sizeof(bits)); /* Store state in digest */ for (i = 0; i < 8; i++) @@ -262,12 +262,11 @@ sha512_final(void *ctx, u8 *hash) memset(sctx, 0, sizeof(struct sha512_ctx)); } -static void sha384_final(void *ctx, u8 *hash) +static void sha384_final(struct crypto_tfm *tfm, u8 *hash) { - struct sha512_ctx *sctx = ctx; u8 D[64]; - sha512_final(sctx, D); + sha512_final(tfm, D); memcpy(hash, D, 48); memset(D, 0, 64); diff --git a/crypto/tea.c b/crypto/tea.c index a6a02b30e47..5367adc82fc 100644 --- a/crypto/tea.c +++ b/crypto/tea.c @@ -45,10 +45,10 @@ struct xtea_ctx { u32 KEY[4]; }; -static int tea_setkey(void *ctx_arg, const u8 *in_key, - unsigned int key_len, u32 *flags) -{ - struct tea_ctx *ctx = ctx_arg; +static int tea_setkey(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) +{ + struct tea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; if (key_len != 16) @@ -66,12 +66,11 @@ static int tea_setkey(void *ctx_arg, const u8 *in_key, } -static void tea_encrypt(void *ctx_arg, u8 *dst, const u8 *src) -{ +static void tea_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ u32 y, z, n, sum = 0; u32 k0, k1, k2, k3; - - struct tea_ctx *ctx = ctx_arg; + struct tea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *in = (const __le32 *)src; __le32 *out = (__le32 *)dst; @@ -95,11 +94,11 @@ static void tea_encrypt(void *ctx_arg, u8 *dst, const u8 *src) out[1] = cpu_to_le32(z); } -static void tea_decrypt(void *ctx_arg, u8 *dst, const u8 *src) -{ +static void tea_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ u32 y, z, n, sum; u32 k0, k1, k2, k3; - struct tea_ctx *ctx = ctx_arg; + struct tea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *in = (const __le32 *)src; __le32 *out = (__le32 *)dst; @@ -125,10 +124,10 @@ static void tea_decrypt(void *ctx_arg, u8 *dst, const u8 *src) out[1] = cpu_to_le32(z); } -static int xtea_setkey(void *ctx_arg, const u8 *in_key, - unsigned int key_len, u32 *flags) -{ - struct xtea_ctx *ctx = ctx_arg; +static int xtea_setkey(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) +{ + struct xtea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; if (key_len != 16) @@ -146,12 +145,11 @@ static int xtea_setkey(void *ctx_arg, const u8 *in_key, } -static void xtea_encrypt(void *ctx_arg, u8 *dst, const u8 *src) -{ +static void xtea_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ u32 y, z, sum = 0; u32 limit = XTEA_DELTA * XTEA_ROUNDS; - - struct xtea_ctx *ctx = ctx_arg; + struct xtea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *in = (const __le32 *)src; __le32 *out = (__le32 *)dst; @@ -168,10 +166,10 @@ static void xtea_encrypt(void *ctx_arg, u8 *dst, const u8 *src) out[1] = cpu_to_le32(z); } -static void xtea_decrypt(void *ctx_arg, u8 *dst, const u8 *src) -{ +static void xtea_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ u32 y, z, sum; - struct tea_ctx *ctx = ctx_arg; + struct tea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *in = (const __le32 *)src; __le32 *out = (__le32 *)dst; @@ -191,12 +189,11 @@ static void xtea_decrypt(void *ctx_arg, u8 *dst, const u8 *src) } -static void xeta_encrypt(void *ctx_arg, u8 *dst, const u8 *src) -{ +static void xeta_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ u32 y, z, sum = 0; u32 limit = XTEA_DELTA * XTEA_ROUNDS; - - struct xtea_ctx *ctx = ctx_arg; + struct xtea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *in = (const __le32 *)src; __le32 *out = (__le32 *)dst; @@ -213,10 +210,10 @@ static void xeta_encrypt(void *ctx_arg, u8 *dst, const u8 *src) out[1] = cpu_to_le32(z); } -static void xeta_decrypt(void *ctx_arg, u8 *dst, const u8 *src) -{ +static void xeta_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ u32 y, z, sum; - struct tea_ctx *ctx = ctx_arg; + struct tea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *in = (const __le32 *)src; __le32 *out = (__le32 *)dst; diff --git a/crypto/tgr192.c b/crypto/tgr192.c index 004bb841cc5..a0fadf3dd3e 100644 --- a/crypto/tgr192.c +++ b/crypto/tgr192.c @@ -496,9 +496,9 @@ static void tgr192_transform(struct tgr192_ctx *tctx, const u8 * data) tctx->c = c; } -static void tgr192_init(void *ctx) +static void tgr192_init(struct crypto_tfm *tfm) { - struct tgr192_ctx *tctx = ctx; + struct tgr192_ctx *tctx = crypto_tfm_ctx(tfm); tctx->a = 0x0123456789abcdefULL; tctx->b = 0xfedcba9876543210ULL; @@ -510,9 +510,10 @@ static void tgr192_init(void *ctx) /* Update the message digest with the contents * of INBUF with length INLEN. */ -static void tgr192_update(void *ctx, const u8 * inbuf, unsigned int len) +static void tgr192_update(struct crypto_tfm *tfm, const u8 *inbuf, + unsigned int len) { - struct tgr192_ctx *tctx = ctx; + struct tgr192_ctx *tctx = crypto_tfm_ctx(tfm); if (tctx->count == 64) { /* flush the buffer */ tgr192_transform(tctx, tctx->hash); @@ -526,7 +527,7 @@ static void tgr192_update(void *ctx, const u8 * inbuf, unsigned int len) for (; len && tctx->count < 64; len--) { tctx->hash[tctx->count++] = *inbuf++; } - tgr192_update(tctx, NULL, 0); + tgr192_update(tfm, NULL, 0); if (!len) { return; } @@ -548,15 +549,15 @@ static void tgr192_update(void *ctx, const u8 * inbuf, unsigned int len) /* The routine terminates the computation */ -static void tgr192_final(void *ctx, u8 * out) +static void tgr192_final(struct crypto_tfm *tfm, u8 * out) { - struct tgr192_ctx *tctx = ctx; + struct tgr192_ctx *tctx = crypto_tfm_ctx(tfm); __be64 *dst = (__be64 *)out; __be64 *be64p; __le32 *le32p; u32 t, msb, lsb; - tgr192_update(tctx, NULL, 0); /* flush */ ; + tgr192_update(tfm, NULL, 0); /* flush */ ; msb = 0; t = tctx->nblocks; @@ -584,7 +585,7 @@ static void tgr192_final(void *ctx, u8 * out) while (tctx->count < 64) { tctx->hash[tctx->count++] = 0; } - tgr192_update(tctx, NULL, 0); /* flush */ ; + tgr192_update(tfm, NULL, 0); /* flush */ ; memset(tctx->hash, 0, 56); /* fill next block with zeroes */ } /* append the 64 bit count */ @@ -600,22 +601,20 @@ static void tgr192_final(void *ctx, u8 * out) dst[2] = be64p[2] = cpu_to_be64(tctx->c); } -static void tgr160_final(void *ctx, u8 * out) +static void tgr160_final(struct crypto_tfm *tfm, u8 * out) { - struct tgr192_ctx *wctx = ctx; u8 D[64]; - tgr192_final(wctx, D); + tgr192_final(tfm, D); memcpy(out, D, TGR160_DIGEST_SIZE); memset(D, 0, TGR192_DIGEST_SIZE); } -static void tgr128_final(void *ctx, u8 * out) +static void tgr128_final(struct crypto_tfm *tfm, u8 * out) { - struct tgr192_ctx *wctx = ctx; u8 D[64]; - tgr192_final(wctx, D); + tgr192_final(tfm, D); memcpy(out, D, TGR128_DIGEST_SIZE); memset(D, 0, TGR192_DIGEST_SIZE); } diff --git a/crypto/twofish.c b/crypto/twofish.c index ddfd5a3fcc5..ec2488242e2 100644 --- a/crypto/twofish.c +++ b/crypto/twofish.c @@ -643,11 +643,11 @@ struct twofish_ctx { }; /* Perform the key setup. */ -static int twofish_setkey(void *cx, const u8 *key, - unsigned int key_len, u32 *flags) +static int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, + unsigned int key_len, u32 *flags) { - struct twofish_ctx *ctx = cx; + struct twofish_ctx *ctx = crypto_tfm_ctx(tfm); int i, j, k; @@ -802,9 +802,9 @@ static int twofish_setkey(void *cx, const u8 *key, } /* Encrypt one block. in and out may be the same. */ -static void twofish_encrypt(void *cx, u8 *out, const u8 *in) +static void twofish_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - struct twofish_ctx *ctx = cx; + struct twofish_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *src = (const __le32 *)in; __le32 *dst = (__le32 *)out; @@ -839,9 +839,9 @@ static void twofish_encrypt(void *cx, u8 *out, const u8 *in) } /* Decrypt one block. in and out may be the same. */ -static void twofish_decrypt(void *cx, u8 *out, const u8 *in) +static void twofish_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - struct twofish_ctx *ctx = cx; + struct twofish_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *src = (const __le32 *)in; __le32 *dst = (__le32 *)out; diff --git a/crypto/wp512.c b/crypto/wp512.c index b226a126cfa..727d05a19ff 100644 --- a/crypto/wp512.c +++ b/crypto/wp512.c @@ -981,9 +981,9 @@ static void wp512_process_buffer(struct wp512_ctx *wctx) { } -static void wp512_init (void *ctx) { +static void wp512_init(struct crypto_tfm *tfm) { + struct wp512_ctx *wctx = crypto_tfm_ctx(tfm); int i; - struct wp512_ctx *wctx = ctx; memset(wctx->bitLength, 0, 32); wctx->bufferBits = wctx->bufferPos = 0; @@ -993,10 +993,10 @@ static void wp512_init (void *ctx) { } } -static void wp512_update(void *ctx, const u8 *source, unsigned int len) +static void wp512_update(struct crypto_tfm *tfm, const u8 *source, + unsigned int len) { - - struct wp512_ctx *wctx = ctx; + struct wp512_ctx *wctx = crypto_tfm_ctx(tfm); int sourcePos = 0; unsigned int bits_len = len * 8; // convert to number of bits int sourceGap = (8 - ((int)bits_len & 7)) & 7; @@ -1054,9 +1054,9 @@ static void wp512_update(void *ctx, const u8 *source, unsigned int len) } -static void wp512_final(void *ctx, u8 *out) +static void wp512_final(struct crypto_tfm *tfm, u8 *out) { - struct wp512_ctx *wctx = ctx; + struct wp512_ctx *wctx = crypto_tfm_ctx(tfm); int i; u8 *buffer = wctx->buffer; u8 *bitLength = wctx->bitLength; @@ -1087,22 +1087,20 @@ static void wp512_final(void *ctx, u8 *out) wctx->bufferPos = bufferPos; } -static void wp384_final(void *ctx, u8 *out) +static void wp384_final(struct crypto_tfm *tfm, u8 *out) { - struct wp512_ctx *wctx = ctx; u8 D[64]; - wp512_final (wctx, D); + wp512_final(tfm, D); memcpy (out, D, WP384_DIGEST_SIZE); memset (D, 0, WP512_DIGEST_SIZE); } -static void wp256_final(void *ctx, u8 *out) +static void wp256_final(struct crypto_tfm *tfm, u8 *out) { - struct wp512_ctx *wctx = ctx; u8 D[64]; - wp512_final (wctx, D); + wp512_final(tfm, D); memcpy (out, D, WP256_DIGEST_SIZE); memset (D, 0, WP512_DIGEST_SIZE); } diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index 5158a9db4bc..b98ad203d6c 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -282,19 +282,20 @@ aes_hw_extkey_available(uint8_t key_len) return 0; } -static inline struct aes_ctx *aes_ctx(void *ctx) +static inline struct aes_ctx *aes_ctx(struct crypto_tfm *tfm) { + unsigned long addr = (unsigned long)crypto_tfm_ctx(tfm); unsigned long align = PADLOCK_ALIGNMENT; if (align <= crypto_tfm_ctx_alignment()) align = 1; - return (struct aes_ctx *)ALIGN((unsigned long)ctx, align); + return (struct aes_ctx *)ALIGN(addr, align); } -static int -aes_set_key(void *ctx_arg, const uint8_t *in_key, unsigned int key_len, uint32_t *flags) +static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, + unsigned int key_len, u32 *flags) { - struct aes_ctx *ctx = aes_ctx(ctx_arg); + struct aes_ctx *ctx = aes_ctx(tfm); const __le32 *key = (const __le32 *)in_key; uint32_t i, t, u, v, w; uint32_t P[AES_EXTENDED_KEY_SIZE]; @@ -414,24 +415,22 @@ static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key, return iv; } -static void -aes_encrypt(void *ctx_arg, uint8_t *out, const uint8_t *in) +static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - struct aes_ctx *ctx = aes_ctx(ctx_arg); + struct aes_ctx *ctx = aes_ctx(tfm); padlock_xcrypt_ecb(in, out, ctx->E, &ctx->cword.encrypt, 1); } -static void -aes_decrypt(void *ctx_arg, uint8_t *out, const uint8_t *in) +static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { - struct aes_ctx *ctx = aes_ctx(ctx_arg); + struct aes_ctx *ctx = aes_ctx(tfm); padlock_xcrypt_ecb(in, out, ctx->D, &ctx->cword.decrypt, 1); } static unsigned int aes_encrypt_ecb(const struct cipher_desc *desc, u8 *out, const u8 *in, unsigned int nbytes) { - struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm)); + struct aes_ctx *ctx = aes_ctx(desc->tfm); padlock_xcrypt_ecb(in, out, ctx->E, &ctx->cword.encrypt, nbytes / AES_BLOCK_SIZE); return nbytes & ~(AES_BLOCK_SIZE - 1); @@ -440,7 +439,7 @@ static unsigned int aes_encrypt_ecb(const struct cipher_desc *desc, u8 *out, static unsigned int aes_decrypt_ecb(const struct cipher_desc *desc, u8 *out, const u8 *in, unsigned int nbytes) { - struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm)); + struct aes_ctx *ctx = aes_ctx(desc->tfm); padlock_xcrypt_ecb(in, out, ctx->D, &ctx->cword.decrypt, nbytes / AES_BLOCK_SIZE); return nbytes & ~(AES_BLOCK_SIZE - 1); @@ -449,7 +448,7 @@ static unsigned int aes_decrypt_ecb(const struct cipher_desc *desc, u8 *out, static unsigned int aes_encrypt_cbc(const struct cipher_desc *desc, u8 *out, const u8 *in, unsigned int nbytes) { - struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm)); + struct aes_ctx *ctx = aes_ctx(desc->tfm); u8 *iv; iv = padlock_xcrypt_cbc(in, out, ctx->E, desc->info, @@ -462,7 +461,7 @@ static unsigned int aes_encrypt_cbc(const struct cipher_desc *desc, u8 *out, static unsigned int aes_decrypt_cbc(const struct cipher_desc *desc, u8 *out, const u8 *in, unsigned int nbytes) { - struct aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(desc->tfm)); + struct aes_ctx *ctx = aes_ctx(desc->tfm); padlock_xcrypt_cbc(in, out, ctx->D, desc->info, &ctx->cword.decrypt, nbytes / AES_BLOCK_SIZE); return nbytes & ~(AES_BLOCK_SIZE - 1); diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 5a0470e3611..ef918803ec3 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -66,7 +66,7 @@ struct crypto_tfm; struct cipher_desc { struct crypto_tfm *tfm; - void (*crfn)(void *ctx, u8 *dst, const u8 *src); + void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst, const u8 *src, unsigned int nbytes); void *info; @@ -79,10 +79,10 @@ struct cipher_desc { struct cipher_alg { unsigned int cia_min_keysize; unsigned int cia_max_keysize; - int (*cia_setkey)(void *ctx, const u8 *key, + int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen, u32 *flags); - void (*cia_encrypt)(void *ctx, u8 *dst, const u8 *src); - void (*cia_decrypt)(void *ctx, u8 *dst, const u8 *src); + void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); + void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); unsigned int (*cia_encrypt_ecb)(const struct cipher_desc *desc, u8 *dst, const u8 *src, @@ -100,20 +100,21 @@ struct cipher_alg { struct digest_alg { unsigned int dia_digestsize; - void (*dia_init)(void *ctx); - void (*dia_update)(void *ctx, const u8 *data, unsigned int len); - void (*dia_final)(void *ctx, u8 *out); - int (*dia_setkey)(void *ctx, const u8 *key, + void (*dia_init)(struct crypto_tfm *tfm); + void (*dia_update)(struct crypto_tfm *tfm, const u8 *data, + unsigned int len); + void (*dia_final)(struct crypto_tfm *tfm, u8 *out); + int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen, u32 *flags); }; struct compress_alg { - int (*coa_init)(void *ctx); - void (*coa_exit)(void *ctx); - int (*coa_compress)(void *ctx, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen); - int (*coa_decompress)(void *ctx, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen); + int (*coa_init)(struct crypto_tfm *tfm); + void (*coa_exit)(struct crypto_tfm *tfm); + int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src, + unsigned int slen, u8 *dst, unsigned int *dlen); + int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src, + unsigned int slen, u8 *dst, unsigned int *dlen); }; #define cra_cipher cra_u.cipher -- cgit v1.2.3 From 82062c72cd643c99a9e1c231270acbab986fd23f Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 16 May 2006 22:20:34 +1000 Subject: [CRYPTO] padlock: Rearrange context structure to reduce code size i386 assembly has more compact instructions for accessing 7-bit offsets. So by moving the large members to the end of the structure we can save quite a bit of code size. This patch shaves about 10% or 300 bytes off the padlock-aes file. Signed-off-by: Herbert Xu --- drivers/crypto/padlock-aes.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index b98ad203d6c..17ee684144f 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -60,15 +60,14 @@ #define AES_EXTENDED_KEY_SIZE_B (AES_EXTENDED_KEY_SIZE * sizeof(uint32_t)) struct aes_ctx { - uint32_t e_data[AES_EXTENDED_KEY_SIZE]; - uint32_t d_data[AES_EXTENDED_KEY_SIZE]; struct { struct cword encrypt; struct cword decrypt; } cword; - uint32_t *E; - uint32_t *D; + u32 *D; int key_length; + u32 E[AES_EXTENDED_KEY_SIZE]; + u32 d_data[AES_EXTENDED_KEY_SIZE]; }; /* ====== Key management routines ====== */ @@ -313,8 +312,7 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, * itself we must supply the plain key for both encryption * and decryption. */ - ctx->E = ctx->e_data; - ctx->D = ctx->e_data; + ctx->D = ctx->E; E_KEY[0] = le32_to_cpu(key[0]); E_KEY[1] = le32_to_cpu(key[1]); -- cgit v1.2.3 From 110bf1c0e932615cbe43a8af8a07bc3750ae4295 Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Mon, 22 May 2006 08:28:06 +1000 Subject: [CRYPTO] api: Fixed incorrect passing of context instead of tfm Fix a few omissions in passing TFM instead of CTX to algorithms. Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- crypto/compress.c | 4 ++-- crypto/digest.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/crypto/compress.c b/crypto/compress.c index c12fc0c41da..f3e07334afd 100644 --- a/crypto/compress.c +++ b/crypto/compress.c @@ -44,7 +44,7 @@ int crypto_init_compress_ops(struct crypto_tfm *tfm) int ret = 0; struct compress_tfm *ops = &tfm->crt_compress; - ret = tfm->__crt_alg->cra_compress.coa_init(crypto_tfm_ctx(tfm)); + ret = tfm->__crt_alg->cra_compress.coa_init(tfm); if (ret) goto out; @@ -57,5 +57,5 @@ out: void crypto_exit_compress_ops(struct crypto_tfm *tfm) { - tfm->__crt_alg->cra_compress.coa_exit(crypto_tfm_ctx(tfm)); + tfm->__crt_alg->cra_compress.coa_exit(tfm); } diff --git a/crypto/digest.c b/crypto/digest.c index 2d9d509c2c5..603006a7bef 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -70,10 +70,10 @@ static void final(struct crypto_tfm *tfm, u8 *out) unsigned int size = crypto_tfm_alg_digestsize(tfm); u8 buffer[size + alignmask]; u8 *dst = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1); - tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), dst); + tfm->__crt_alg->cra_digest.dia_final(tfm, dst); memcpy(out, dst, size); } else - tfm->__crt_alg->cra_digest.dia_final(crypto_tfm_ctx(tfm), out); + tfm->__crt_alg->cra_digest.dia_final(tfm, out); } static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) -- cgit v1.2.3 From c7fc05992afcf1d63d6d5fb6142c8d39094dbca9 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 24 May 2006 13:02:26 +1000 Subject: [CRYPTO] api: Added cra_init/cra_exit This patch adds the hooks cra_init/cra_exit which are called during a tfm's construction and destruction respectively. This will be used by the instances to allocate child tfm's. For now this lets us get rid of the coa_init/coa_exit functions which are used for exactly that purpose (unlike the dia_init function which is called for each transaction). In fact the coa_exit path is currently buggy as it may get called twice when an error is encountered during initialisation. Signed-off-by: Herbert Xu --- crypto/api.c | 11 ++++++++--- crypto/compress.c | 9 +-------- crypto/deflate.c | 4 ++-- include/linux/crypto.h | 5 +++-- 4 files changed, 14 insertions(+), 15 deletions(-) diff --git a/crypto/api.c b/crypto/api.c index 80bba637fba..8145310d798 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -188,13 +188,16 @@ struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags) if (crypto_init_flags(tfm, flags)) goto out_free_tfm; - if (crypto_init_ops(tfm)) { - crypto_exit_ops(tfm); + if (crypto_init_ops(tfm)) goto out_free_tfm; - } + + if (alg->cra_init && alg->cra_init(tfm)) + goto cra_init_failed; goto out; +cra_init_failed: + crypto_exit_ops(tfm); out_free_tfm: kfree(tfm); tfm = NULL; @@ -215,6 +218,8 @@ void crypto_free_tfm(struct crypto_tfm *tfm) alg = tfm->__crt_alg; size = sizeof(*tfm) + alg->cra_ctxsize; + if (alg->cra_exit) + alg->cra_exit(tfm); crypto_exit_ops(tfm); crypto_alg_put(alg); memset(tfm, 0, size); diff --git a/crypto/compress.c b/crypto/compress.c index f3e07334afd..eca182aa338 100644 --- a/crypto/compress.c +++ b/crypto/compress.c @@ -41,21 +41,14 @@ int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags) int crypto_init_compress_ops(struct crypto_tfm *tfm) { - int ret = 0; struct compress_tfm *ops = &tfm->crt_compress; - - ret = tfm->__crt_alg->cra_compress.coa_init(tfm); - if (ret) - goto out; ops->cot_compress = crypto_compress; ops->cot_decompress = crypto_decompress; -out: - return ret; + return 0; } void crypto_exit_compress_ops(struct crypto_tfm *tfm) { - tfm->__crt_alg->cra_compress.coa_exit(tfm); } diff --git a/crypto/deflate.c b/crypto/deflate.c index 5dd2404ae5b..6588bbf82e9 100644 --- a/crypto/deflate.c +++ b/crypto/deflate.c @@ -201,9 +201,9 @@ static struct crypto_alg alg = { .cra_ctxsize = sizeof(struct deflate_ctx), .cra_module = THIS_MODULE, .cra_list = LIST_HEAD_INIT(alg.cra_list), + .cra_init = deflate_init, + .cra_exit = deflate_exit, .cra_u = { .compress = { - .coa_init = deflate_init, - .coa_exit = deflate_exit, .coa_compress = deflate_compress, .coa_decompress = deflate_decompress } } }; diff --git a/include/linux/crypto.h b/include/linux/crypto.h index ef918803ec3..6c013c88080 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -109,8 +109,6 @@ struct digest_alg { }; struct compress_alg { - int (*coa_init)(struct crypto_tfm *tfm); - void (*coa_exit)(struct crypto_tfm *tfm); int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen); int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src, @@ -138,6 +136,9 @@ struct crypto_alg { struct digest_alg digest; struct compress_alg compress; } cra_u; + + int (*cra_init)(struct crypto_tfm *tfm); + void (*cra_exit)(struct crypto_tfm *tfm); struct module *cra_module; }; -- cgit v1.2.3 From d913ea0d6b6a48dd6eed8fc5e299b8b10e049186 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 21 May 2006 08:45:26 +1000 Subject: [CRYPTO] api: Removed const from cra_name/cra_driver_name We do need to change these names now and even more so in future with instantiated algorithms. So let's stop lying to the compiler and get rid of the const modifiers. Signed-off-by: Herbert Xu --- crypto/api.c | 2 +- include/linux/crypto.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/crypto/api.c b/crypto/api.c index 8145310d798..735fdedd821 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -229,7 +229,7 @@ void crypto_free_tfm(struct crypto_tfm *tfm) static inline int crypto_set_driver_name(struct crypto_alg *alg) { static const char suffix[] = "-generic"; - char *driver_name = (char *)alg->cra_driver_name; + char *driver_name = alg->cra_driver_name; int len; if (*driver_name) diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 6c013c88080..7f946241b87 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -128,8 +128,8 @@ struct crypto_alg { int cra_priority; - const char cra_name[CRYPTO_MAX_ALG_NAME]; - const char cra_driver_name[CRYPTO_MAX_ALG_NAME]; + char cra_name[CRYPTO_MAX_ALG_NAME]; + char cra_driver_name[CRYPTO_MAX_ALG_NAME]; union { struct cipher_alg cipher; -- cgit v1.2.3 From 996e2523cc347cc98237d2da3454aedc779fdcba Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 21 May 2006 11:57:20 +1000 Subject: [CRYPTO] api: Allow replacement when registering new algorithms We already allow asynchronous removal of existing algorithm modules. By allowing the replacement of existing algorithms, we can replace algorithms without having to wait for for all existing users to complete. Signed-off-by: Herbert Xu --- crypto/api.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/crypto/api.c b/crypto/api.c index 735fdedd821..c11ec1fd4f1 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -267,13 +267,13 @@ int crypto_register_alg(struct crypto_alg *alg) down_write(&crypto_alg_sem); list_for_each_entry(q, &crypto_alg_list, cra_list) { - if (!strcmp(q->cra_driver_name, alg->cra_driver_name)) { + if (q == alg) { ret = -EEXIST; goto out; } } - list_add_tail(&alg->cra_list, &crypto_alg_list); + list_add(&alg->cra_list, &crypto_alg_list); out: up_write(&crypto_alg_sem); return ret; -- cgit v1.2.3 From 14fdf477a7e3ff54f8e67fe506dd2677a36c56e4 Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Tue, 30 May 2006 14:49:38 +1000 Subject: [CRYPTO] tcrypt: Return -EAGAIN from module_init() Intentionaly return -EAGAIN from module_init() to ensure it doesn't stay loaded in the kernel. The module does all its work from init() and doesn't offer any runtime functionality => we don't need it in the memory, do we? Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- crypto/tcrypt.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 49e344f0080..7bf93c5decf 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -1113,7 +1113,14 @@ static int __init init(void) kfree(xbuf); kfree(tvmem); - return 0; + + /* We intentionaly return -EAGAIN to prevent keeping + * the module. It does all its work from init() + * and doesn't offer any runtime functionality + * => we don't need it in the memory, do we? + * -- mludvig + */ + return -EAGAIN; } /* -- cgit v1.2.3 From e805792851bcb0bb42f0c8a352be64564c13e374 Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Tue, 30 May 2006 22:04:19 +1000 Subject: [CRYPTO] tcrypt: Speed benchmark support for digest algorithms This patch adds speed tests (benchmarks) for digest algorithms. Tests are run with different buffer sizes (16 bytes, ... 8 kBytes) and with each buffer multiple tests are run with different update() sizes (e.g. hash 64 bytes buffer in four 16 byte updates). There is no correctness checking of the result and all tests and algorithms use the same input buffer. Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- crypto/tcrypt.c | 170 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ crypto/tcrypt.h | 36 ++++++++++++ 2 files changed, 206 insertions(+) diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 7bf93c5decf..e52f56c5bd5 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -570,6 +570,122 @@ out: crypto_free_tfm(tfm); } +static void test_digest_jiffies(struct crypto_tfm *tfm, char *p, int blen, + int plen, char *out, int sec) +{ + struct scatterlist sg[1]; + unsigned long start, end; + int bcount, pcount; + + for (start = jiffies, end = start + sec * HZ, bcount = 0; + time_before(jiffies, end); bcount++) { + crypto_digest_init(tfm); + for (pcount = 0; pcount < blen; pcount += plen) { + sg_set_buf(sg, p + pcount, plen); + crypto_digest_update(tfm, sg, 1); + } + /* we assume there is enough space in 'out' for the result */ + crypto_digest_final(tfm, out); + } + + printk("%6u opers/sec, %9lu bytes/sec\n", + bcount / sec, ((long)bcount * blen) / sec); + + return; +} + +static void test_digest_cycles(struct crypto_tfm *tfm, char *p, int blen, + int plen, char *out) +{ + struct scatterlist sg[1]; + unsigned long cycles = 0; + int i, pcount; + + local_bh_disable(); + local_irq_disable(); + + /* Warm-up run. */ + for (i = 0; i < 4; i++) { + crypto_digest_init(tfm); + for (pcount = 0; pcount < blen; pcount += plen) { + sg_set_buf(sg, p + pcount, plen); + crypto_digest_update(tfm, sg, 1); + } + crypto_digest_final(tfm, out); + } + + /* The real thing. */ + for (i = 0; i < 8; i++) { + cycles_t start, end; + + crypto_digest_init(tfm); + + start = get_cycles(); + + for (pcount = 0; pcount < blen; pcount += plen) { + sg_set_buf(sg, p + pcount, plen); + crypto_digest_update(tfm, sg, 1); + } + crypto_digest_final(tfm, out); + + end = get_cycles(); + + cycles += end - start; + } + + local_irq_enable(); + local_bh_enable(); + + printk("%6lu cycles/operation, %4lu cycles/byte\n", + cycles / 8, cycles / (8 * blen)); + + return; +} + +static void test_digest_speed(char *algo, unsigned int sec, + struct digest_speed *speed) +{ + struct crypto_tfm *tfm; + char output[1024]; + int i; + + printk("\ntesting speed of %s\n", algo); + + tfm = crypto_alloc_tfm(algo, 0); + + if (tfm == NULL) { + printk("failed to load transform for %s\n", algo); + return; + } + + if (crypto_tfm_alg_digestsize(tfm) > sizeof(output)) { + printk("digestsize(%u) > outputbuffer(%zu)\n", + crypto_tfm_alg_digestsize(tfm), sizeof(output)); + goto out; + } + + for (i = 0; speed[i].blen != 0; i++) { + if (speed[i].blen > TVMEMSIZE) { + printk("template (%u) too big for tvmem (%u)\n", + speed[i].blen, TVMEMSIZE); + goto out; + } + + printk("test%3u (%5u byte blocks,%5u bytes per update,%4u updates): ", + i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen); + + memset(tvmem, 0xff, speed[i].blen); + + if (sec) + test_digest_jiffies(tfm, tvmem, speed[i].blen, speed[i].plen, output, sec); + else + test_digest_cycles(tfm, tvmem, speed[i].blen, speed[i].plen, output); + } + +out: + crypto_free_tfm(tfm); +} + static void test_deflate(void) { unsigned int i; @@ -1086,6 +1202,60 @@ static void do_test(void) des_speed_template); break; + case 300: + /* fall through */ + + case 301: + test_digest_speed("md4", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 302: + test_digest_speed("md5", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 303: + test_digest_speed("sha1", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 304: + test_digest_speed("sha256", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 305: + test_digest_speed("sha384", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 306: + test_digest_speed("sha512", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 307: + test_digest_speed("wp256", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 308: + test_digest_speed("wp384", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 309: + test_digest_speed("wp512", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 310: + test_digest_speed("tgr128", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 311: + test_digest_speed("tgr160", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 312: + test_digest_speed("tgr192", sec, generic_digest_speed_template); + if (mode > 300 && mode < 400) break; + + case 399: + break; + case 1000: test_available(); break; diff --git a/crypto/tcrypt.h b/crypto/tcrypt.h index 1f683ba794e..1fac5602f63 100644 --- a/crypto/tcrypt.h +++ b/crypto/tcrypt.h @@ -65,6 +65,11 @@ struct cipher_speed { unsigned int blen; }; +struct digest_speed { + unsigned int blen; /* buffer length */ + unsigned int plen; /* per-update length */ +}; + /* * MD4 test vectors from RFC1320 */ @@ -2975,4 +2980,35 @@ static struct cipher_speed des_speed_template[] = { { .klen = 0, .blen = 0, } }; +/* + * Digest speed tests + */ +static struct digest_speed generic_digest_speed_template[] = { + { .blen = 16, .plen = 16, }, + { .blen = 64, .plen = 16, }, + { .blen = 64, .plen = 64, }, + { .blen = 256, .plen = 16, }, + { .blen = 256, .plen = 64, }, + { .blen = 256, .plen = 256, }, + { .blen = 1024, .plen = 16, }, + { .blen = 1024, .plen = 256, }, + { .blen = 1024, .plen = 1024, }, + { .blen = 2048, .plen = 16, }, + { .blen = 2048, .plen = 256, }, + { .blen = 2048, .plen = 1024, }, + { .blen = 2048, .plen = 2048, }, + { .blen = 4096, .plen = 16, }, + { .blen = 4096, .plen = 256, }, + { .blen = 4096, .plen = 1024, }, + { .blen = 4096, .plen = 4096, }, + { .blen = 8192, .plen = 16, }, + { .blen = 8192, .plen = 256, }, + { .blen = 8192, .plen = 1024, }, + { .blen = 8192, .plen = 4096, }, + { .blen = 8192, .plen = 8192, }, + + /* End marker */ + { .blen = 0, .plen = 0, } +}; + #endif /* _CRYPTO_TCRYPT_H */ -- cgit v1.2.3 From e90b1a2be6010acf01673b0625cfbf18240f7744 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Fri, 2 Jun 2006 08:42:25 +1000 Subject: [CRYPTO] aes: Add wrappers for assembly routines The wrapper routines are required when asmlinkage differs from the usual calling convention. So we need to have them. However, by rearranging the parameters, they will get optimised away to a single jump for most people. Signed-off-by: Herbert Xu --- arch/i386/crypto/aes.c | 14 ++++++++++++-- arch/x86_64/crypto/aes-x86_64-asm.S | 8 ++++---- arch/x86_64/crypto/aes.c | 14 ++++++++++++-- 3 files changed, 28 insertions(+), 8 deletions(-) diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c index b9c7d99160f..d3806daa3de 100644 --- a/arch/i386/crypto/aes.c +++ b/arch/i386/crypto/aes.c @@ -464,6 +464,16 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, return 0; } +static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + aes_enc_blk(tfm, dst, src); +} + +static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + aes_dec_blk(tfm, dst, src); +} + static struct crypto_alg aes_alg = { .cra_name = "aes", .cra_driver_name = "aes-i586", @@ -478,8 +488,8 @@ static struct crypto_alg aes_alg = { .cia_min_keysize = AES_MIN_KEY_SIZE, .cia_max_keysize = AES_MAX_KEY_SIZE, .cia_setkey = aes_set_key, - .cia_encrypt = aes_enc_blk, - .cia_decrypt = aes_dec_blk + .cia_encrypt = aes_encrypt, + .cia_decrypt = aes_decrypt } } }; diff --git a/arch/x86_64/crypto/aes-x86_64-asm.S b/arch/x86_64/crypto/aes-x86_64-asm.S index f3ba643e144..26b40de4d0b 100644 --- a/arch/x86_64/crypto/aes-x86_64-asm.S +++ b/arch/x86_64/crypto/aes-x86_64-asm.S @@ -151,9 +151,9 @@ FUNC: movq r1,r2; \ #define decrypt_final(TAB,OFFSET) \ round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4) -/* void aes_encrypt(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */ +/* void aes_enc_blk(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */ - entry(aes_encrypt,0,enc128,enc192) + entry(aes_enc_blk,0,enc128,enc192) encrypt_round(aes_ft_tab,-96) encrypt_round(aes_ft_tab,-80) enc192: encrypt_round(aes_ft_tab,-64) @@ -170,9 +170,9 @@ enc128: encrypt_round(aes_ft_tab,-32) encrypt_final(aes_fl_tab,112) return -/* void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) */ +/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in) */ - entry(aes_decrypt,240,dec128,dec192) + entry(aes_dec_blk,240,dec128,dec192) decrypt_round(aes_it_tab,-96) decrypt_round(aes_it_tab,-80) dec192: decrypt_round(aes_it_tab,-64) diff --git a/arch/x86_64/crypto/aes.c b/arch/x86_64/crypto/aes.c index d6f8e0463b5..68866fab37a 100644 --- a/arch/x86_64/crypto/aes.c +++ b/arch/x86_64/crypto/aes.c @@ -283,8 +283,18 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, return 0; } -extern void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); -extern void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); +asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in); +asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in); + +static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + aes_enc_blk(tfm, dst, src); +} + +static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) +{ + aes_dec_blk(tfm, dst, src); +} static struct crypto_alg aes_alg = { .cra_name = "aes", -- cgit v1.2.3 From b9d0a25a484a90c1d60b974d115eff2fe580ce16 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 10 Jun 2006 18:06:34 +1000 Subject: [CRYPTO] tcrypt: Forbid tcrypt from being built-in It makes no sense to build tcrypt into the kernel. In fact, now that the driver init function's return status is being checked, it is in fact harmful to do so. Signed-off-by: Herbert Xu --- crypto/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/Kconfig b/crypto/Kconfig index c442f2e7ce4..ba133d55704 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -337,7 +337,7 @@ config CRYPTO_CRC32C config CRYPTO_TEST tristate "Testing module" - depends on CRYPTO + depends on CRYPTO && m help Quick & dirty crypto test module. -- cgit v1.2.3 From d772bd03bc38794c84811be9d2537c225e08c9b8 Mon Sep 17 00:00:00 2001 From: Manu Abraham Date: Sat, 24 Jun 2006 11:18:58 -0300 Subject: V4L/DVB (4211): Fix an Oops for all fe that have get_frontend_algo == NULL Thanks to Johannes Stezenbach for pointing it out Signed-off-by: Manu Abraham Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-core/dvb_frontend.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 3152a54a253..9be41e4c2fd 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -556,21 +556,23 @@ static int dvb_frontend_thread(void *data) } /* do an iteration of the tuning loop */ - if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) { - /* have we been asked to retune? */ - params = NULL; - if (fepriv->state & FESTATE_RETUNE) { - params = &fepriv->parameters; - fepriv->state = FESTATE_TUNED; - } + if (fe->ops.get_frontend_algo) { + if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) { + /* have we been asked to retune? */ + params = NULL; + if (fepriv->state & FESTATE_RETUNE) { + params = &fepriv->parameters; + fepriv->state = FESTATE_TUNED; + } - fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); - if (s != fepriv->status) { - dvb_frontend_add_event(fe, s); - fepriv->status = s; + fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); + if (s != fepriv->status) { + dvb_frontend_add_event(fe, s); + fepriv->status = s; + } + } else { + dvb_frontend_swzigzag(fe); } - } else { - dvb_frontend_swzigzag(fe); } } -- cgit v1.2.3 From dff47bf21be002b3f0a6562d368474c41971b448 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 24 Jun 2006 19:25:43 -0300 Subject: V4L/DVB (4213): Cx88: cleanups remove the following unused hooks: - cx88-blackbird.c: cx88_ioctl_hook() - cx88-blackbird.c: cx88_ioctl_translator() make the following needlessly global functions static: - cx88-tvaudio.c: cx88_detect_nicam() remove the following unused EXPORT_SYMBOL's: - cx88-cards.c: cx88_bcount - cx88-cards.c: cx88_subids - cx88-cards.c: cx88_idcount - cx88-cards.c: cx88_card_list - cx88-cards.c: cx88_card_setup - cx88-core.c: cx88_start_audio_dma - cx88-core.c: cx88_stop_audio_dma - cx88-i2c.c: cx88_i2c_init Signed-off-by: Adrian Bunk Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx88/cx88-blackbird.c | 17 ++++------------- drivers/media/video/cx88/cx88-cards.c | 5 ----- drivers/media/video/cx88/cx88-core.c | 2 -- drivers/media/video/cx88/cx88-i2c.c | 1 - drivers/media/video/cx88/cx88-tvaudio.c | 2 +- drivers/media/video/cx88/cx88.h | 7 ------- 6 files changed, 5 insertions(+), 29 deletions(-) diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index 67fd3302e8f..78df66671ea 100644 --- a/drivers/media/video/cx88/cx88-blackbird.c +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -846,7 +846,7 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file, BLACKBIRD_MPEG_CAPTURE, BLACKBIRD_RAW_BITS_NONE); - cx88_do_ioctl( inode, file, 0, dev->core, cmd, arg, cx88_ioctl_hook ); + cx88_do_ioctl(inode, file, 0, dev->core, cmd, arg, mpeg_do_ioctl); blackbird_initialize_codec(dev); cx88_set_scale(dev->core, dev->width, dev->height, @@ -855,15 +855,11 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file, } default: - return cx88_do_ioctl( inode, file, 0, dev->core, cmd, arg, cx88_ioctl_hook ); + return cx88_do_ioctl(inode, file, 0, dev->core, cmd, arg, mpeg_do_ioctl); } return 0; } -int (*cx88_ioctl_hook)(struct inode *inode, struct file *file, - unsigned int cmd, void *arg); -unsigned int (*cx88_ioctl_translator)(unsigned int cmd); - static unsigned int mpeg_translate_ioctl(unsigned int cmd) { return cmd; @@ -872,8 +868,8 @@ static unsigned int mpeg_translate_ioctl(unsigned int cmd) static int mpeg_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { - cmd = cx88_ioctl_translator( cmd ); - return video_usercopy(inode, file, cmd, arg, cx88_ioctl_hook); + cmd = mpeg_translate_ioctl( cmd ); + return video_usercopy(inode, file, cmd, arg, mpeg_do_ioctl); } static int mpeg_open(struct inode *inode, struct file *file) @@ -1119,8 +1115,6 @@ static int blackbird_init(void) printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); #endif - cx88_ioctl_hook = mpeg_do_ioctl; - cx88_ioctl_translator = mpeg_translate_ioctl; return pci_register_driver(&blackbird_pci_driver); } @@ -1132,9 +1126,6 @@ static void blackbird_fini(void) module_init(blackbird_init); module_exit(blackbird_fini); -EXPORT_SYMBOL(cx88_ioctl_hook); -EXPORT_SYMBOL(cx88_ioctl_translator); - /* ----------------------------------------------------------- */ /* * Local variables: diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c index 67cdd827086..f9d68f20dc8 100644 --- a/drivers/media/video/cx88/cx88-cards.c +++ b/drivers/media/video/cx88/cx88-cards.c @@ -1700,11 +1700,6 @@ void cx88_card_setup(struct cx88_core *core) /* ------------------------------------------------------------------ */ EXPORT_SYMBOL(cx88_boards); -EXPORT_SYMBOL(cx88_bcount); -EXPORT_SYMBOL(cx88_subids); -EXPORT_SYMBOL(cx88_idcount); -EXPORT_SYMBOL(cx88_card_list); -EXPORT_SYMBOL(cx88_card_setup); /* * Local variables: diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c index c56292d8d93..26f4c0fb8c3 100644 --- a/drivers/media/video/cx88/cx88-core.c +++ b/drivers/media/video/cx88/cx88-core.c @@ -1181,8 +1181,6 @@ EXPORT_SYMBOL(cx88_set_scale); EXPORT_SYMBOL(cx88_vdev_init); EXPORT_SYMBOL(cx88_core_get); EXPORT_SYMBOL(cx88_core_put); -EXPORT_SYMBOL(cx88_start_audio_dma); -EXPORT_SYMBOL(cx88_stop_audio_dma); /* * Local variables: diff --git a/drivers/media/video/cx88/cx88-i2c.c b/drivers/media/video/cx88/cx88-i2c.c index 7efa6def0bd..70663805cc3 100644 --- a/drivers/media/video/cx88/cx88-i2c.c +++ b/drivers/media/video/cx88/cx88-i2c.c @@ -234,7 +234,6 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci) /* ----------------------------------------------------------------------- */ EXPORT_SYMBOL(cx88_call_i2c_clients); -EXPORT_SYMBOL(cx88_i2c_init); /* * Local variables: diff --git a/drivers/media/video/cx88/cx88-tvaudio.c b/drivers/media/video/cx88/cx88-tvaudio.c index 1e4278b588d..5785c348157 100644 --- a/drivers/media/video/cx88/cx88-tvaudio.c +++ b/drivers/media/video/cx88/cx88-tvaudio.c @@ -726,7 +726,7 @@ static void set_audio_standard_FM(struct cx88_core *core, /* ----------------------------------------------------------- */ -int cx88_detect_nicam(struct cx88_core *core) +static int cx88_detect_nicam(struct cx88_core *core) { int i, j = 0; diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h index dc7bc35f18f..9a9a0fc7a41 100644 --- a/drivers/media/video/cx88/cx88.h +++ b/drivers/media/video/cx88/cx88.h @@ -563,7 +563,6 @@ void cx88_newstation(struct cx88_core *core); void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t); void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual); int cx88_audio_thread(void *data); -int cx88_detect_nicam(struct cx88_core *core); /* ----------------------------------------------------------- */ /* cx88-input.c */ @@ -592,12 +591,6 @@ extern int cx88_do_ioctl(struct inode *inode, struct file *file, int radio, struct cx88_core *core, unsigned int cmd, void *arg, v4l2_kioctl driver_ioctl); -/* ----------------------------------------------------------- */ -/* cx88-blackbird.c */ -extern int (*cx88_ioctl_hook)(struct inode *inode, struct file *file, - unsigned int cmd, void *arg); -extern unsigned int (*cx88_ioctl_translator)(unsigned int cmd); - /* * Local variables: * c-basic-offset: 8 -- cgit v1.2.3 From 3446807d6e9ccf4b21476b0b143d35fcc964be4b Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sat, 24 Jun 2006 20:47:21 -0300 Subject: V4L/DVB (4214): Make VIDEO_CX2341X a selectable build option The cx2341x mpeg encoder module is used by cx88-blackbird, pvrusb2 and the external ivtv driver. This patch allows for cx2341x to be selected without having to also select cx88-blackbird. This will be needed to build the external ivtv driver or the standalone pvrusb2 driver against kernel 2.6.18 Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/Kconfig | 3 --- drivers/media/video/Kconfig | 12 ++++++++++++ 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index 583d151b748..ef52e6da01e 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -82,9 +82,6 @@ config VIDEO_IR config VIDEO_TVEEPROM tristate -config VIDEO_CX2341X - tristate - config USB_DABUSB tristate "DABUSB driver" depends on USB diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 824a63c9262..e4290491fa9 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -381,6 +381,18 @@ config VIDEO_WM8739 To compile this driver as a module, choose M here: the module will be called wm8739. +config VIDEO_CX2341X + tristate "Conexant CX2341x MPEG encoders" + depends on VIDEO_V4L2 && EXPERIMENTAL + ---help--- + Support for the Conexant CX23416 MPEG encoders + and CX23415 MPEG encoder/decoders. + + This module currently supports the encoding functions only. + + To compile this driver as a module, choose M here: the + module will be called cx2341x. + source "drivers/media/video/cx25840/Kconfig" config VIDEO_SAA711X -- cgit v1.2.3 From 7670d73266d37d18ded5b328db2804c9a7ab7921 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sat, 24 Jun 2006 21:05:12 -0300 Subject: V4L/DVB (4215): Make VIDEO_CX88_BLACKBIRD a separate build option This patch creates a new Kconfig menu option, entitled, "Blackbird MPEG encoder support (cx2388x + cx23416)" so that the cx88-blackbird mpeg encoder module can be chosen separately. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx88/Kconfig | 15 +++++++++++++-- drivers/media/video/cx88/Makefile | 5 +++-- 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/media/video/cx88/Kconfig b/drivers/media/video/cx88/Kconfig index 91e1c481a16..80e23ee9801 100644 --- a/drivers/media/video/cx88/Kconfig +++ b/drivers/media/video/cx88/Kconfig @@ -11,7 +11,6 @@ config VIDEO_CX88 select VIDEO_BUF select VIDEO_TUNER select VIDEO_TVEEPROM - select VIDEO_CX2341X select VIDEO_IR ---help--- This is a video4linux driver for Conexant 2388x based @@ -36,13 +35,25 @@ config VIDEO_CX88_ALSA To compile this driver as a module, choose M here: the module will be called cx88-alsa. +config VIDEO_CX88_BLACKBIRD + tristate "Blackbird MPEG encoder support (cx2388x + cx23416)" + depends on VIDEO_CX88 + select VIDEO_CX2341X + ---help--- + This adds support for MPEG encoder cards based on the + Blackbird reference design, using the Conexant 2388x + and 23416 chips. + + To compile this driver as a module, choose M here: the + module will be called cx88-blackbird. + config VIDEO_CX88_DVB tristate "DVB/ATSC Support for cx2388x based TV cards" depends on VIDEO_CX88 && DVB_CORE select VIDEO_BUF_DVB ---help--- This adds support for DVB/ATSC cards based on the - Connexant 2388x chip. + Conexant 2388x chip. To compile this driver as a module, choose M here: the module will be called cx88-dvb. diff --git a/drivers/media/video/cx88/Makefile b/drivers/media/video/cx88/Makefile index 0dcd09b9b72..352b919f30c 100644 --- a/drivers/media/video/cx88/Makefile +++ b/drivers/media/video/cx88/Makefile @@ -3,9 +3,10 @@ cx88xx-objs := cx88-cards.o cx88-core.o cx88-i2c.o cx88-tvaudio.o \ cx8800-objs := cx88-video.o cx88-vbi.o cx8802-objs := cx88-mpeg.o -obj-$(CONFIG_VIDEO_CX88) += cx88xx.o cx8800.o cx8802.o cx88-blackbird.o -obj-$(CONFIG_VIDEO_CX88_DVB) += cx88-dvb.o +obj-$(CONFIG_VIDEO_CX88) += cx88xx.o cx8800.o cx8802.o obj-$(CONFIG_VIDEO_CX88_ALSA) += cx88-alsa.o +obj-$(CONFIG_VIDEO_CX88_BLACKBIRD) += cx88-blackbird.o +obj-$(CONFIG_VIDEO_CX88_DVB) += cx88-dvb.o obj-$(CONFIG_VIDEO_CX88_VP3054) += cx88-vp3054-i2c.o EXTRA_CFLAGS += -Idrivers/media/video -- cgit v1.2.3 From 4a4edcca22bf46622f34db74a876a7eb91d95865 Mon Sep 17 00:00:00 2001 From: Manu Abraham Date: Sun, 25 Jun 2006 05:46:26 -0300 Subject: V4L/DVB (4217): Fix a misplaced closing bracket/else, which caused swzigzag not to be called Thanks to Oliver Endriss for spotting this. Signed-off-by: Manu Abraham Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-core/dvb_frontend.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 9be41e4c2fd..5e8bb41a088 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -570,10 +570,9 @@ static int dvb_frontend_thread(void *data) dvb_frontend_add_event(fe, s); fepriv->status = s; } - } else { - dvb_frontend_swzigzag(fe); } - } + } else + dvb_frontend_swzigzag(fe); } if (dvb_shutdown_timeout) { -- cgit v1.2.3 From 61391e0446e97bea44d93bd1624e5b32d3cc8474 Mon Sep 17 00:00:00 2001 From: Tim Kaiser Date: Sun, 25 Jun 2006 09:14:07 -0300 Subject: V4L/DVB (4219): Av7110: analog sound output of DVB-C rev 2.3 Added support for the msp34x5 audio dac. Analog sound output of Technotrend DVB-C 2300 (aka Hauppauge Nexus-CA) works now. Signed-off-by: Tim Kaiser Signed-off-by: Marco Schluessler Signed-off-by: Oliver Endriss Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/ttpci/av7110.c | 8 ++---- drivers/media/dvb/ttpci/av7110_av.c | 25 +++++++++++++++--- drivers/media/dvb/ttpci/av7110_v4l.c | 50 ++++++++++++++++++++++++++++-------- 3 files changed, 64 insertions(+), 19 deletions(-) diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c index 8832f80c05f..7a5c99c200e 100644 --- a/drivers/media/dvb/ttpci/av7110.c +++ b/drivers/media/dvb/ttpci/av7110.c @@ -152,13 +152,9 @@ static void init_av7110_av(struct av7110 *av7110) /* remaining inits according to card and frontend type */ av7110->analog_tuner_flags = 0; av7110->current_input = 0; - if (dev->pci->subsystem_vendor == 0x13c2 && dev->pci->subsystem_device == 0x000a) { - printk("dvb-ttpci: MSP3415 audio DAC @ card %d\n", - av7110->dvb_adapter.num); - av7110->adac_type = DVB_ADAC_MSP34x5; + if (dev->pci->subsystem_vendor == 0x13c2 && dev->pci->subsystem_device == 0x000a) av7110_fw_cmd(av7110, COMTYPE_AUDIODAC, ADSwitch, 1, 0); // SPDIF on - } - else if (i2c_writereg(av7110, 0x20, 0x00, 0x00) == 1) { + if (i2c_writereg(av7110, 0x20, 0x00, 0x00) == 1) { printk ("dvb-ttpci: Crystal audio DAC @ card %d detected\n", av7110->dvb_adapter.num); av7110->adac_type = DVB_ADAC_CRYSTAL; diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c index 2eff09f638d..0f3a044aeb1 100644 --- a/drivers/media/dvb/ttpci/av7110_av.c +++ b/drivers/media/dvb/ttpci/av7110_av.c @@ -318,7 +318,17 @@ int av7110_set_volume(struct av7110 *av7110, int volleft, int volright) msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */ msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */ return 0; + + case DVB_ADAC_MSP34x5: + vol = (volleft > volright) ? volleft : volright; + val = (vol * 0x73 / 255) << 8; + if (vol > 0) + balance = ((volright - volleft) * 127) / vol; + msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8); + msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */ + return 0; } + return 0; } @@ -1267,23 +1277,32 @@ static int dvb_audio_ioctl(struct inode *inode, struct file *file, switch(av7110->audiostate.channel_select) { case AUDIO_STEREO: ret = audcom(av7110, AUDIO_CMD_STEREO); - if (!ret) + if (!ret) { if (av7110->adac_type == DVB_ADAC_CRYSTAL) i2c_writereg(av7110, 0x20, 0x02, 0x49); + else if (av7110->adac_type == DVB_ADAC_MSP34x5) + msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220); + } break; case AUDIO_MONO_LEFT: ret = audcom(av7110, AUDIO_CMD_MONO_L); - if (!ret) + if (!ret) { if (av7110->adac_type == DVB_ADAC_CRYSTAL) i2c_writereg(av7110, 0x20, 0x02, 0x4a); + else if (av7110->adac_type == DVB_ADAC_MSP34x5) + msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200); + } break; case AUDIO_MONO_RIGHT: ret = audcom(av7110, AUDIO_CMD_MONO_R); - if (!ret) + if (!ret) { if (av7110->adac_type == DVB_ADAC_CRYSTAL) i2c_writereg(av7110, 0x20, 0x02, 0x45); + else if (av7110->adac_type == DVB_ADAC_MSP34x5) + msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210); + } break; default: diff --git a/drivers/media/dvb/ttpci/av7110_v4l.c b/drivers/media/dvb/ttpci/av7110_v4l.c index 603a22e4bfe..64055461559 100644 --- a/drivers/media/dvb/ttpci/av7110_v4l.c +++ b/drivers/media/dvb/ttpci/av7110_v4l.c @@ -42,7 +42,18 @@ int msp_writereg(struct av7110 *av7110, u8 dev, u16 reg, u16 val) { u8 msg[5] = { dev, reg >> 8, reg & 0xff, val >> 8 , val & 0xff }; - struct i2c_msg msgs = { .flags = 0, .addr = 0x40, .len = 5, .buf = msg }; + struct i2c_msg msgs = { .flags = 0, .len = 5, .buf = msg }; + + switch (av7110->adac_type) { + case DVB_ADAC_MSP34x0: + msgs.addr = 0x40; + break; + case DVB_ADAC_MSP34x5: + msgs.addr = 0x42; + break; + default: + return 0; + } if (i2c_transfer(&av7110->i2c_adap, &msgs, 1) != 1) { dprintk(1, "dvb-ttpci: failed @ card %d, %u = %u\n", @@ -57,10 +68,23 @@ static int msp_readreg(struct av7110 *av7110, u8 dev, u16 reg, u16 *val) u8 msg1[3] = { dev, reg >> 8, reg & 0xff }; u8 msg2[2]; struct i2c_msg msgs[2] = { - { .flags = 0, .addr = 0x40, .len = 3, .buf = msg1 }, - { .flags = I2C_M_RD, .addr = 0x40, .len = 2, .buf = msg2 } + { .flags = 0 , .len = 3, .buf = msg1 }, + { .flags = I2C_M_RD, .len = 2, .buf = msg2 } }; + switch (av7110->adac_type) { + case DVB_ADAC_MSP34x0: + msgs[0].addr = 0x40; + msgs[1].addr = 0x40; + break; + case DVB_ADAC_MSP34x5: + msgs[0].addr = 0x42; + msgs[1].addr = 0x42; + break; + default: + return 0; + } + if (i2c_transfer(&av7110->i2c_adap, &msgs[0], 2) != 2) { dprintk(1, "dvb-ttpci: failed @ card %d, %u\n", av7110->dvb_adapter.num, reg); @@ -678,17 +702,23 @@ int av7110_init_analog_module(struct av7110 *av7110) { u16 version1, version2; - if (i2c_writereg(av7110, 0x80, 0x0, 0x80) != 1 - || i2c_writereg(av7110, 0x80, 0x0, 0) != 1) + if (i2c_writereg(av7110, 0x80, 0x0, 0x80) == 1 && + i2c_writereg(av7110, 0x80, 0x0, 0) == 1) { + printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3400\n", + av7110->dvb_adapter.num); + av7110->adac_type = DVB_ADAC_MSP34x0; + } else if (i2c_writereg(av7110, 0x84, 0x0, 0x80) == 1 && + i2c_writereg(av7110, 0x84, 0x0, 0) == 1) { + printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3415\n", + av7110->dvb_adapter.num); + av7110->adac_type = DVB_ADAC_MSP34x5; + } else return -ENODEV; - printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3400\n", - av7110->dvb_adapter.num); - av7110->adac_type = DVB_ADAC_MSP34x0; msleep(100); // the probing above resets the msp... msp_readreg(av7110, MSP_RD_DSP, 0x001e, &version1); msp_readreg(av7110, MSP_RD_DSP, 0x001f, &version2); - dprintk(1, "dvb-ttpci: @ card %d MSP3400 version 0x%04x 0x%04x\n", + dprintk(1, "dvb-ttpci: @ card %d MSP34xx version 0x%04x 0x%04x\n", av7110->dvb_adapter.num, version1, version2); msp_writereg(av7110, MSP_WR_DSP, 0x0013, 0x0c00); msp_writereg(av7110, MSP_WR_DSP, 0x0000, 0x7f00); // loudspeaker + headphone @@ -697,7 +727,7 @@ int av7110_init_analog_module(struct av7110 *av7110) msp_writereg(av7110, MSP_WR_DSP, 0x0004, 0x7f00); // loudspeaker volume msp_writereg(av7110, MSP_WR_DSP, 0x000a, 0x0220); // SCART 1 source msp_writereg(av7110, MSP_WR_DSP, 0x0007, 0x7f00); // SCART 1 volume - msp_writereg(av7110, MSP_WR_DSP, 0x000d, 0x4800); // prescale SCART + msp_writereg(av7110, MSP_WR_DSP, 0x000d, 0x1900); // prescale SCART if (i2c_writereg(av7110, 0x48, 0x01, 0x00)!=1) { INFO(("saa7113 not accessible.\n")); -- cgit v1.2.3 From 91a972910df042a0a308b2ffd3aa6fd42b0242e3 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 24 Jun 2006 09:26:43 -0300 Subject: V4L/DVB (4221): Add HM12 YUV format define. HM12 is a YUV 4:1:1 format used by the cx2341x MPEG encoder/decoder for the raw YUV input/output. The Y and UV planes are broken up in 16x16 macroblocks and each macroblock is transmitted in turn (row by row). Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 4f428547ec0..8b4745c5e97 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -245,6 +245,7 @@ struct v4l2_pix_format #define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y','U','1','2') /* 12 YUV 4:2:0 */ #define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y','Y','U','V') /* 16 YUV 4:2:2 */ #define V4L2_PIX_FMT_HI240 v4l2_fourcc('H','I','2','4') /* 8 8-bit color */ +#define V4L2_PIX_FMT_HM12 v4l2_fourcc('H','M','1','2') /* 8 YUV 4:1:1 16x16 macroblocks */ /* see http://www.siliconimaging.com/RGB%20Bayer.htm */ #define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B','A','8','1') /* 8 BGBG.. GRGR.. */ -- cgit v1.2.3 From 4f725cb3fa46fabe7fd7c7175fa77e12616bfdb8 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 24 Jun 2006 09:47:56 -0300 Subject: V4L/DVB (4222): Always switch tuner mode when calling VIDIOC_S_FREQUENCY. Fixes the weird and incorrect condition in VIDIOC_S_FREQUENCY. The tuner should always be switched to the mode specified in the v4l2_frequency struct. Much simpler and also corresponding to the v4l2 specification. The old condition made it impossible to switch from radio to analog tv mode using VIDIOC_S_FREQUENCY. Instead the (tv) frequency would be given to the radio tuner. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tuner-core.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c index e95792fd70f..a26ded7d6fa 100644 --- a/drivers/media/video/tuner-core.c +++ b/drivers/media/video/tuner-core.c @@ -730,14 +730,10 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg) { struct v4l2_frequency *f = arg; + if (set_mode (client, t, f->type, "VIDIOC_S_FREQUENCY") + == EINVAL) + return 0; switch_v4l2(); - if ((V4L2_TUNER_RADIO == f->type && V4L2_TUNER_RADIO != t->mode) - || (V4L2_TUNER_DIGITAL_TV == f->type - && V4L2_TUNER_DIGITAL_TV != t->mode)) { - if (set_mode (client, t, f->type, "VIDIOC_S_FREQUENCY") - == EINVAL) - return 0; - } set_freq(client,f->frequency); break; -- cgit v1.2.3 From 8cbde94be34f95c01515ba19ce32bcd51ab3949e Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 24 Jun 2006 14:36:02 -0300 Subject: V4L/DVB (4223): Add V4L2_CID_MPEG_STREAM_VBI_FMT control V4L2_CID_MPEG_STREAM_VBI_FMT controls if and how VBI data is embedded in an MPEG stream. Currently only one format is supported: the format designed for the ivtv driver. This should be extended with new standard formats (such as defined for DVB) in the future. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx2341x.c | 17 +++++++++++++++++ drivers/media/video/v4l2-common.c | 14 ++++++++++++++ include/linux/videodev2.h | 5 +++++ include/media/cx2341x.h | 6 ++++++ 4 files changed, 42 insertions(+) diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c index 554813e6f65..01b22eab572 100644 --- a/drivers/media/video/cx2341x.c +++ b/drivers/media/video/cx2341x.c @@ -43,6 +43,7 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)"); const u32 cx2341x_mpeg_ctrls[] = { V4L2_CID_MPEG_CLASS, V4L2_CID_MPEG_STREAM_TYPE, + V4L2_CID_MPEG_STREAM_VBI_FMT, V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ, V4L2_CID_MPEG_AUDIO_ENCODING, V4L2_CID_MPEG_AUDIO_L2_BITRATE, @@ -135,6 +136,9 @@ static int cx2341x_get_ctrl(struct cx2341x_mpeg_params *params, case V4L2_CID_MPEG_STREAM_TYPE: ctrl->value = params->stream_type; break; + case V4L2_CID_MPEG_STREAM_VBI_FMT: + ctrl->value = params->stream_vbi_fmt; + break; case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE: ctrl->value = params->video_spatial_filter_mode; break; @@ -257,6 +261,9 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params, params->video_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR; } break; + case V4L2_CID_MPEG_STREAM_VBI_FMT: + params->stream_vbi_fmt = ctrl->value; + break; case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE: params->video_spatial_filter_mode = ctrl->value; break; @@ -418,6 +425,14 @@ int cx2341x_ctrl_query(struct cx2341x_mpeg_params *params, struct v4l2_queryctrl qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE; return err; + case V4L2_CID_MPEG_STREAM_VBI_FMT: + if (params->capabilities & CX2341X_CAP_HAS_SLICED_VBI) + return v4l2_ctrl_query_fill_std(qctrl); + return cx2341x_ctrl_query_fill(qctrl, + V4L2_MPEG_STREAM_VBI_FMT_NONE, + V4L2_MPEG_STREAM_VBI_FMT_NONE, 1, + V4L2_MPEG_STREAM_VBI_FMT_NONE); + /* CX23415/6 specific */ case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE: return cx2341x_ctrl_query_fill(qctrl, @@ -639,6 +654,7 @@ void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p) { static struct cx2341x_mpeg_params default_params = { /* misc */ + .capabilities = 0, .port = CX2341X_PORT_MEMORY, .width = 720, .height = 480, @@ -646,6 +662,7 @@ void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p) /* stream */ .stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS, + .stream_vbi_fmt = V4L2_MPEG_STREAM_VBI_FMT_NONE, /* audio */ .audio_sampling_freq = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index 14e52347135..f4b3d64ebf7 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -1101,6 +1101,11 @@ const char **v4l2_ctrl_get_menu(u32 id) "MPEG-2 SVCD-compatible Stream", NULL }; + static const char *mpeg_stream_vbi_fmt[] = { + "No VBI", + "VBI in private packets, IVTV format", + NULL + }; switch (id) { case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: @@ -1129,6 +1134,8 @@ const char **v4l2_ctrl_get_menu(u32 id) return mpeg_video_bitrate_mode; case V4L2_CID_MPEG_STREAM_TYPE: return mpeg_stream_type; + case V4L2_CID_MPEG_STREAM_VBI_FMT: + return mpeg_stream_vbi_fmt; default: return NULL; } @@ -1182,6 +1189,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste case V4L2_CID_MPEG_STREAM_PID_PCR: name = "Stream PCR Program ID"; break; case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break; case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break; + case V4L2_CID_MPEG_STREAM_VBI_FMT: name = "Stream VBI Format"; break; default: return -EINVAL; @@ -1208,6 +1216,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste case V4L2_CID_MPEG_VIDEO_ASPECT: case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: case V4L2_CID_MPEG_STREAM_TYPE: + case V4L2_CID_MPEG_STREAM_VBI_FMT: qctrl->type = V4L2_CTRL_TYPE_MENU; step = 1; break; @@ -1367,6 +1376,11 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl) return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); + case V4L2_CID_MPEG_STREAM_VBI_FMT: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_STREAM_VBI_FMT_NONE, + V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1, + V4L2_MPEG_STREAM_VBI_FMT_NONE); default: return -EINVAL; } diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 8b4745c5e97..a62673dad76 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -822,6 +822,11 @@ enum v4l2_mpeg_stream_type { #define V4L2_CID_MPEG_STREAM_PID_PCR (V4L2_CID_MPEG_BASE+4) #define V4L2_CID_MPEG_STREAM_PES_ID_AUDIO (V4L2_CID_MPEG_BASE+5) #define V4L2_CID_MPEG_STREAM_PES_ID_VIDEO (V4L2_CID_MPEG_BASE+6) +#define V4L2_CID_MPEG_STREAM_VBI_FMT (V4L2_CID_MPEG_BASE+7) +enum v4l2_mpeg_stream_vbi_fmt { + V4L2_MPEG_STREAM_VBI_FMT_NONE = 0, /* No VBI in the MPEG stream */ + V4L2_MPEG_STREAM_VBI_FMT_IVTV = 1, /* VBI in private packets, IVTV format */ +}; /* MPEG audio */ #define V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ (V4L2_CID_MPEG_BASE+100) diff --git a/include/media/cx2341x.h b/include/media/cx2341x.h index 51fb06b4c39..074c4008ad5 100644 --- a/include/media/cx2341x.h +++ b/include/media/cx2341x.h @@ -25,8 +25,13 @@ enum cx2341x_port { CX2341X_PORT_SERIAL = 2 }; +enum cx2341x_cap { + CX2341X_CAP_HAS_SLICED_VBI = 1 << 0, +}; + struct cx2341x_mpeg_params { /* misc */ + u32 capabilities; enum cx2341x_port port; u16 width; u16 height; @@ -34,6 +39,7 @@ struct cx2341x_mpeg_params { /* stream */ enum v4l2_mpeg_stream_type stream_type; + enum v4l2_mpeg_stream_vbi_fmt stream_vbi_fmt; /* audio */ enum v4l2_mpeg_audio_sampling_freq audio_sampling_freq; -- cgit v1.2.3 From 33f40b3b023b9f00b40ecfb3a39286de13516b33 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sun, 25 Jun 2006 17:48:22 -0300 Subject: V4L/DVB (4227): Update this driver for recent header file movement. Signed-off-by: Andrew Morton Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/usbvideo/quickcam_messenger.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/usbvideo/quickcam_messenger.c b/drivers/media/video/usbvideo/quickcam_messenger.c index 3f3182a24da..56e01b62241 100644 --- a/drivers/media/video/usbvideo/quickcam_messenger.c +++ b/drivers/media/video/usbvideo/quickcam_messenger.c @@ -33,7 +33,7 @@ #include #include #include -#include +#include #include "usbvideo.h" #include "quickcam_messenger.h" -- cgit v1.2.3 From 124a27fe32398a69d16bae374aeb17ad67a0ebbf Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 26 Jun 2006 13:47:59 +0000 Subject: [CIFS] Remove calls to to take f_owner.lock CIFS takes/releases f_owner.lock - why? It does not change anything in the fowner state. Remove this locking. Signed-off-by: Ingo Molnar Signed-off-by: Steve French --- fs/cifs/file.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 616b140534b..e9c1573f6aa 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -110,7 +110,6 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file, &pCifsInode->openFileList); } write_unlock(&GlobalSMBSeslock); - write_unlock(&file->f_owner.lock); if (pCifsInode->clientCanCacheRead) { /* we have the inode open somewhere else no need to discard cache data */ @@ -287,7 +286,6 @@ int cifs_open(struct inode *inode, struct file *file) goto out; } pCifsFile = cifs_init_private(file->private_data, inode, file, netfid); - write_lock(&file->f_owner.lock); write_lock(&GlobalSMBSeslock); list_add(&pCifsFile->tlist, &pTcon->openFileList); @@ -298,7 +296,6 @@ int cifs_open(struct inode *inode, struct file *file) &oplock, buf, full_path, xid); } else { write_unlock(&GlobalSMBSeslock); - write_unlock(&file->f_owner.lock); } if (oplock & CIFS_CREATE_ACTION) { @@ -477,7 +474,6 @@ int cifs_close(struct inode *inode, struct file *file) pTcon = cifs_sb->tcon; if (pSMBFile) { pSMBFile->closePend = TRUE; - write_lock(&file->f_owner.lock); if (pTcon) { /* no sense reconnecting to close a file that is already closed */ @@ -492,23 +488,18 @@ int cifs_close(struct inode *inode, struct file *file) the struct would be in each open file, but this should give enough time to clear the socket */ - write_unlock(&file->f_owner.lock); cERROR(1,("close with pending writes")); msleep(timeout); - write_lock(&file->f_owner.lock); timeout *= 4; } - write_unlock(&file->f_owner.lock); rc = CIFSSMBClose(xid, pTcon, pSMBFile->netfid); - write_lock(&file->f_owner.lock); } } write_lock(&GlobalSMBSeslock); list_del(&pSMBFile->flist); list_del(&pSMBFile->tlist); write_unlock(&GlobalSMBSeslock); - write_unlock(&file->f_owner.lock); kfree(pSMBFile->search_resume_name); kfree(file->private_data); file->private_data = NULL; -- cgit v1.2.3 From 52c5ceceb145fad10b9996ce414dadcb6b02d959 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Mon, 26 Jun 2006 15:12:56 +0100 Subject: [ARM] 3649/1: S3C24XX: Fix capitalisation of CPU on SMDK2440 Patch from Ben Dooks Make CPU uppercase on the SMDK2440 KConfig entries-- Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/mach-s3c2410/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig index f5d9cd498a5..b4171dd43df 100644 --- a/arch/arm/mach-s3c2410/Kconfig +++ b/arch/arm/mach-s3c2410/Kconfig @@ -71,13 +71,13 @@ config ARCH_S3C2440 Say Y here if you are using the SMDK2440. config SMDK2440_CPU2440 - bool "SMDK2440 with S3C2440 cpu module" + bool "SMDK2440 with S3C2440 CPU module" depends on ARCH_S3C2440 default y if ARCH_S3C2440 select CPU_S3C2440 config SMDK2440_CPU2442 - bool "SMDM2440 with S3C2442 cpu module" + bool "SMDM2440 with S3C2442 CPU module" depends on ARCH_S3C2440 select CPU_S3C2442 -- cgit v1.2.3 From 28c68e3450a19930d12e1798950d62e09f447ae1 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Mon, 26 Jun 2006 15:12:57 +0100 Subject: [ARM] 3650/1: S3C2412: Update s3c2410_defconfig Patch from Ben Dooks Add SMDK2413 to the list of the machines being built for ARCH_S3C2410, thus ensursing our all machines build has an representitive of the S3C2412/S3C2413 CPU series-- Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/configs/s3c2410_defconfig | 50 +++++++++++++++++++++++++++----------- 1 file changed, 36 insertions(+), 14 deletions(-) diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig index e1766138009..f20814e6f49 100644 --- a/arch/arm/configs/s3c2410_defconfig +++ b/arch/arm/configs/s3c2410_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.17 -# Tue Jun 20 18:57:01 2006 +# Linux kernel version: 2.6.17-git9 +# Sun Jun 25 23:56:32 2006 # CONFIG_ARM=y CONFIG_MMU=y @@ -49,7 +49,6 @@ CONFIG_SLAB=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set -CONFIG_OBSOLETE_INTERMODULE=y # # Loadable module support @@ -81,18 +80,26 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" # # System Type # +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +# CONFIG_ARCH_AT91RM9200 is not set # CONFIG_ARCH_CLPS7500 is not set # CONFIG_ARCH_CLPS711X is not set # CONFIG_ARCH_CO285 is not set # CONFIG_ARCH_EBSA110 is not set # CONFIG_ARCH_EP93XX is not set # CONFIG_ARCH_FOOTBRIDGE is not set -# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IMX is not set # CONFIG_ARCH_IOP3XX is not set # CONFIG_ARCH_IXP4XX is not set # CONFIG_ARCH_IXP2000 is not set # CONFIG_ARCH_IXP23XX is not set # CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_PNX4008 is not set # CONFIG_ARCH_PXA is not set # CONFIG_ARCH_RPC is not set # CONFIG_ARCH_SA1100 is not set @@ -100,14 +107,6 @@ CONFIG_ARCH_S3C2410=y # CONFIG_ARCH_SHARK is not set # CONFIG_ARCH_LH7A40X is not set # CONFIG_ARCH_OMAP is not set -# CONFIG_ARCH_VERSATILE is not set -# CONFIG_ARCH_REALVIEW is not set -# CONFIG_ARCH_IMX is not set -# CONFIG_ARCH_H720X is not set -# CONFIG_ARCH_AAEC2000 is not set -# CONFIG_ARCH_AT91RM9200 is not set -# CONFIG_ARCH_PNX4008 is not set -# CONFIG_ARCH_NETX is not set # # S3C24XX Implementations @@ -123,11 +122,14 @@ CONFIG_ARCH_SMDK2410=y CONFIG_ARCH_S3C2440=y CONFIG_SMDK2440_CPU2440=y CONFIG_SMDK2440_CPU2442=y +CONFIG_MACH_SMDK2413=y CONFIG_MACH_VR1000=y CONFIG_MACH_RX3715=y CONFIG_MACH_OTOM=y CONFIG_MACH_NEXCODER_2440=y +CONFIG_S3C2410_CLOCK=y CONFIG_CPU_S3C2410=y +CONFIG_CPU_S3C2412=y CONFIG_CPU_S3C244X=y CONFIG_CPU_S3C2440=y CONFIG_CPU_S3C2442=y @@ -153,8 +155,11 @@ CONFIG_S3C2410_LOWLEVEL_UART_PORT=0 # CONFIG_CPU_32=y CONFIG_CPU_ARM920T=y +CONFIG_CPU_ARM926T=y CONFIG_CPU_32v4=y +CONFIG_CPU_32v5=y CONFIG_CPU_ABRT_EV4T=y +CONFIG_CPU_ABRT_EV5TJ=y CONFIG_CPU_CACHE_V4WT=y CONFIG_CPU_CACHE_VIVT=y CONFIG_CPU_COPY_V4WB=y @@ -167,6 +172,7 @@ CONFIG_CPU_TLB_V4WBI=y # CONFIG_CPU_ICACHE_DISABLE is not set # CONFIG_CPU_DCACHE_DISABLE is not set # CONFIG_CPU_DCACHE_WRITETHROUGH is not set +# CONFIG_CPU_CACHE_ROUND_ROBIN is not set # # Bus support @@ -214,6 +220,7 @@ CONFIG_CMDLINE="root=/dev/hda1 ro init=/bin/bash console=ttySAC0" CONFIG_FPE_NWFPE=y # CONFIG_FPE_NWFPE_XP is not set # CONFIG_FPE_FASTFPE is not set +# CONFIG_VFP is not set # # Userspace binary formats @@ -242,6 +249,8 @@ CONFIG_NET=y # CONFIG_NETDEBUG is not set # CONFIG_PACKET is not set CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set @@ -260,6 +269,8 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_IPCOMP is not set # CONFIG_INET_XFRM_TUNNEL is not set # CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -267,6 +278,7 @@ CONFIG_TCP_CONG_BIC=y # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set # @@ -321,6 +333,7 @@ CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_FW_LOADER is not set # CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set # # Connector - unified userspace <-> kernelspace linker @@ -408,10 +421,12 @@ CONFIG_MTD_BAST_MAXSIZE=4 # CONFIG_MTD_NAND=y # CONFIG_MTD_NAND_VERIFY_WRITE is not set +# CONFIG_MTD_NAND_ECC_SMC is not set CONFIG_MTD_NAND_IDS=y CONFIG_MTD_NAND_S3C2410=y # CONFIG_MTD_NAND_S3C2410_DEBUG is not set # CONFIG_MTD_NAND_S3C2410_HWECC is not set +# CONFIG_MTD_NAND_S3C2410_CLKSTOP is not set # CONFIG_MTD_NAND_DISKONCHIP is not set # CONFIG_MTD_NAND_NANDSIM is not set @@ -425,8 +440,8 @@ CONFIG_MTD_NAND_S3C2410=y # CONFIG_PARPORT=y # CONFIG_PARPORT_PC is not set -# CONFIG_PARPORT_ARC is not set # CONFIG_PARPORT_GSC is not set +# CONFIG_PARPORT_AX88796 is not set CONFIG_PARPORT_1284=y # @@ -735,6 +750,7 @@ CONFIG_I2C_ALGOBIT=m # # CONFIG_I2C_ELEKTOR is not set CONFIG_I2C_ISA=m +# CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT is not set # CONFIG_I2C_PARPORT_LIGHT is not set CONFIG_I2C_S3C2410=y @@ -765,13 +781,13 @@ CONFIG_SENSORS_EEPROM=m # # Dallas's 1-wire bus # -# CONFIG_W1 is not set # # Hardware Monitoring support # CONFIG_HWMON=y CONFIG_HWMON_VID=m +# CONFIG_SENSORS_ABITUGURU is not set # CONFIG_SENSORS_ADM1021 is not set # CONFIG_SENSORS_ADM1025 is not set # CONFIG_SENSORS_ADM1026 is not set @@ -799,8 +815,10 @@ CONFIG_SENSORS_LM85=m # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set # CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47M192 is not set # CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_W83781D is not set +# CONFIG_SENSORS_W83791D is not set # CONFIG_SENSORS_W83792D is not set # CONFIG_SENSORS_W83L785TS is not set # CONFIG_SENSORS_W83627HF is not set @@ -845,6 +863,7 @@ CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y # CONFIG_FB_MACMODES is not set CONFIG_FB_FIRMWARE_EDID=y +# CONFIG_FB_BACKLIGHT is not set CONFIG_FB_MODE_HELPERS=y # CONFIG_FB_TILEBLITTING is not set # CONFIG_FB_S1D13XXX is not set @@ -976,10 +995,12 @@ CONFIG_USB_MON=y # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set +# CONFIG_USB_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_APPLEDISPLAY is not set # CONFIG_USB_LD is not set # CONFIG_USB_TEST is not set @@ -1024,6 +1045,7 @@ CONFIG_FS_MBCACHE=y # CONFIG_MINIX_FS is not set CONFIG_ROMFS_FS=y CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set -- cgit v1.2.3 From cd701aa27e4cfab5c99c7da13d404b1f3a0aecfb Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Mon, 26 Jun 2006 15:12:58 +0100 Subject: [ARM] 3651/1: S3C24XX: Make arch list more detailed Patch from Ben Dooks Add the rest of the supported S3C24XX family to the configuration selection for ARCH_S3C2410. This should try and make it clearer for people trying to find the S3C2440 or freinds where they can be found.-- Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 114a5e0dbff..3d1a3fb7d5f 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -253,7 +253,7 @@ config ARCH_SA1100 Support for StrongARM 11x0 based boards. config ARCH_S3C2410 - bool "Samsung S3C2410" + bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442" help Samsung S3C2410X CPU based systems, such as the Simtec Electronics BAST (), the IPAQ 1940 or -- cgit v1.2.3 From b07076e6173a2593e369c3375f07c1cd7d78c36f Mon Sep 17 00:00:00 2001 From: Ben Collins Date: Mon, 26 Jun 2006 15:24:36 +0100 Subject: [SERIAL] 8250_pnp: add support for other Wacom tablets http://www.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu-dapper.git;a=commitdiff;h=6a242b6c279af7805a6cca8f39dbc5bfe1f78cd1 Signed-off-by: Ben Collins Signed-off-by: Andrew Morton Signed-off-by: Russell King --- drivers/serial/8250_pnp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c index b79ed0665d5..739bc84f91e 100644 --- a/drivers/serial/8250_pnp.c +++ b/drivers/serial/8250_pnp.c @@ -323,8 +323,10 @@ static const struct pnp_device_id pnp_dev_table[] = { { "USR9180", 0 }, /* U.S. Robotics 56K Voice INT PnP*/ { "USR9190", 0 }, - /* HP Compaq Tablet PC tc1100 Wacom tablet */ + /* Wacom tablets */ + { "WACF004", 0 }, { "WACF005", 0 }, + { "WACF006", 0 }, /* Rockwell's (PORALiNK) 33600 INT PNP */ { "WCI0003", 0 }, /* Unkown PnP modems */ -- cgit v1.2.3 From cfc736564fd01ee008d746913b1bbb90e3eb1f99 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 26 Jun 2006 15:26:13 +0100 Subject: [ARM] fix drivers/mfd/ucb1x00-core.c IRQ probing bug While reviewing the IRQ autoprobing code i found the attached buglet. probe_irq_on()/off() calls must always be in pairs, because the generic IRQ code uses a global semaphore to serialize all autoprobing activites. (which does make sense) The ARM code's probe_irq_*() implementation does not do this, but if this driver is ever used on another platform, this bug might bite. (It probably does not trigger in practice, because a zero probing mask returned should be rare - but still.) Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Russell King --- drivers/mfd/ucb1x00-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c index aff83f96680..c8426a9bf27 100644 --- a/drivers/mfd/ucb1x00-core.c +++ b/drivers/mfd/ucb1x00-core.c @@ -420,8 +420,10 @@ static int ucb1x00_detect_irq(struct ucb1x00 *ucb) unsigned long mask; mask = probe_irq_on(); - if (!mask) + if (!mask) { + probe_irq_off(mask); return NO_IRQ; + } /* * Enable the ADC interrupt. -- cgit v1.2.3 From bdca3f202dbeaca2fcc4fb47219476286c999b0d Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 26 Jun 2006 18:19:23 +0200 Subject: remove the bouncing email address of David Campbell This patch removes a bouncing email address from the kernel sources. Signed-off-by: Adrian Bunk --- Documentation/scsi/ppa.txt | 2 -- drivers/parport/parport_gsc.c | 2 +- drivers/parport/parport_gsc.h | 2 +- drivers/parport/parport_pc.c | 2 +- drivers/parport/procfs.c | 2 +- drivers/scsi/imm.c | 3 --- drivers/scsi/imm.h | 2 +- drivers/scsi/ppa.c | 2 -- drivers/scsi/ppa.h | 2 +- 9 files changed, 6 insertions(+), 13 deletions(-) diff --git a/Documentation/scsi/ppa.txt b/Documentation/scsi/ppa.txt index 0dac88d86d8..5d9223bc1bd 100644 --- a/Documentation/scsi/ppa.txt +++ b/Documentation/scsi/ppa.txt @@ -12,5 +12,3 @@ http://www.torque.net/parport/ Email list for Linux Parport linux-parport@torque.net -Email for problems with ZIP or ZIP Plus drivers -campbell@torque.net diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c index 1de52d9febf..7352104f7b3 100644 --- a/drivers/parport/parport_gsc.c +++ b/drivers/parport/parport_gsc.c @@ -15,7 +15,7 @@ * Phil Blundell * Tim Waugh * Jose Renau - * David Campbell + * David Campbell * Andrea Arcangeli */ diff --git a/drivers/parport/parport_gsc.h b/drivers/parport/parport_gsc.h index 662f6c1fee5..fc9c37c5402 100644 --- a/drivers/parport/parport_gsc.h +++ b/drivers/parport/parport_gsc.h @@ -24,7 +24,7 @@ * Phil Blundell * Tim Waugh * Jose Renau - * David Campbell + * David Campbell * Andrea Arcangeli */ diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 48bbf32fd98..7318e4a9e43 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -3,7 +3,7 @@ * Authors: Phil Blundell * Tim Waugh * Jose Renau - * David Campbell + * David Campbell * Andrea Arcangeli * * based on work by Grant Guenther and Phil Blundell. diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c index cbe17184b9c..8610ae88b92 100644 --- a/drivers/parport/procfs.c +++ b/drivers/parport/procfs.c @@ -1,6 +1,6 @@ /* Sysctl interface for parport devices. * - * Authors: David Campbell + * Authors: David Campbell * Tim Waugh * Philip Blundell * Andrea Arcangeli diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c index cd2dffdab77..681bd18493f 100644 --- a/drivers/scsi/imm.c +++ b/drivers/scsi/imm.c @@ -3,9 +3,6 @@ * * (The IMM is the embedded controller in the ZIP Plus drive.) * - * Current Maintainer: David Campbell (Perth, Western Australia) - * campbell@torque.net - * * My unoffical company acronym list is 21 pages long: * FLA: Four letter acronym with built in facility for * future expansion to five letters. diff --git a/drivers/scsi/imm.h b/drivers/scsi/imm.h index dc3aebf0e36..ece936ac29c 100644 --- a/drivers/scsi/imm.h +++ b/drivers/scsi/imm.h @@ -2,7 +2,7 @@ /* Driver for the Iomega MatchMaker parallel port SCSI HBA embedded in * the Iomega ZIP Plus drive * - * (c) 1998 David Campbell campbell@torque.net + * (c) 1998 David Campbell * * Please note that I live in Perth, Western Australia. GMT+0800 */ diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index 108910f512e..d58ac5ad509 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -6,8 +6,6 @@ * (c) 1995,1996 Grant R. Guenther, grant@torque.net, * under the terms of the GNU General Public License. * - * Current Maintainer: David Campbell (Perth, Western Australia, GMT+0800) - * campbell@torque.net */ #include diff --git a/drivers/scsi/ppa.h b/drivers/scsi/ppa.h index f6e1a1574bb..7511df3588e 100644 --- a/drivers/scsi/ppa.h +++ b/drivers/scsi/ppa.h @@ -2,7 +2,7 @@ * the Iomega ZIP drive * * (c) 1996 Grant R. Guenther grant@torque.net - * David Campbell campbell@torque.net + * David Campbell * * All comments to David. */ -- cgit v1.2.3 From 0ecbf4b5fc38479ba29149455d56c11a23b131c0 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 26 Jun 2006 18:21:37 +0200 Subject: move acknowledgment for Mark Adler to CREDITS The place in the documentation of the Linux kernel to acknowledge contributions is the CREDITS file. Give Mark Adler an entry there instead of including a string in the kernel image. Signed-off-by: Adrian Bunk --- CREDITS | 5 +++++ lib/zlib_inflate/inftrees.c | 9 --------- 2 files changed, 5 insertions(+), 9 deletions(-) diff --git a/CREDITS b/CREDITS index 1d35f10ec3b..85c7c70b704 100644 --- a/CREDITS +++ b/CREDITS @@ -24,6 +24,11 @@ S: C. Negri 6, bl. D3 S: Iasi 6600 S: Romania +N: Mark Adler +E: madler@alumni.caltech.edu +W: http://alumnus.caltech.edu/~madler/ +D: zlib decompression + N: Monalisa Agrawal E: magrawal@nortelnetworks.com D: Basic Interphase 5575 driver with UBR and ABR support. diff --git a/lib/zlib_inflate/inftrees.c b/lib/zlib_inflate/inftrees.c index 62343c53bf7..da665fbb16a 100644 --- a/lib/zlib_inflate/inftrees.c +++ b/lib/zlib_inflate/inftrees.c @@ -8,15 +8,6 @@ #define MAXBITS 15 -const char inflate_copyright[] = - " inflate 1.2.3 Copyright 1995-2005 Mark Adler "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - /* Build a set of tables to decode the provided canonical Huffman code. The code lengths are lens[0..codes-1]. The result starts at *table, -- cgit v1.2.3 From a0ebb3ffd6c195011f7e4abdfc40f98342d36ce2 Mon Sep 17 00:00:00 2001 From: Michael Hayes Date: Mon, 26 Jun 2006 18:27:35 +0200 Subject: Spelling fixes for Documentation/atomic_ops.txt Spelling and typo fixes for Documentation/atomic_ops.txt Signed-off-by: Adrian Bunk --- Documentation/atomic_ops.txt | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt index 23a1c2402bc..2a63d5662a9 100644 --- a/Documentation/atomic_ops.txt +++ b/Documentation/atomic_ops.txt @@ -157,13 +157,13 @@ For example, smp_mb__before_atomic_dec() can be used like so: smp_mb__before_atomic_dec(); atomic_dec(&obj->ref_count); -It makes sure that all memory operations preceeding the atomic_dec() +It makes sure that all memory operations preceding the atomic_dec() call are strongly ordered with respect to the atomic counter -operation. In the above example, it guarentees that the assignment of +operation. In the above example, it guarantees that the assignment of "1" to obj->dead will be globally visible to other cpus before the atomic counter decrement. -Without the explicitl smp_mb__before_atomic_dec() call, the +Without the explicit smp_mb__before_atomic_dec() call, the implementation could legally allow the atomic counter update visible to other cpus before the "obj->dead = 1;" assignment. @@ -173,11 +173,11 @@ ordering with respect to memory operations after an atomic_dec() call (smp_mb__{before,after}_atomic_inc()). A missing memory barrier in the cases where they are required by the -atomic_t implementation above can have disasterous results. Here is -an example, which follows a pattern occuring frequently in the Linux +atomic_t implementation above can have disastrous results. Here is +an example, which follows a pattern occurring frequently in the Linux kernel. It is the use of atomic counters to implement reference counting, and it works such that once the counter falls to zero it can -be guarenteed that no other entity can be accessing the object: +be guaranteed that no other entity can be accessing the object: static void obj_list_add(struct obj *obj) { @@ -291,9 +291,9 @@ to the size of an "unsigned long" C data type, and are least of that size. The endianness of the bits within each "unsigned long" are the native endianness of the cpu. - void set_bit(unsigned long nr, volatils unsigned long *addr); - void clear_bit(unsigned long nr, volatils unsigned long *addr); - void change_bit(unsigned long nr, volatils unsigned long *addr); + void set_bit(unsigned long nr, volatile unsigned long *addr); + void clear_bit(unsigned long nr, volatile unsigned long *addr); + void change_bit(unsigned long nr, volatile unsigned long *addr); These routines set, clear, and change, respectively, the bit number indicated by "nr" on the bit mask pointed to by "ADDR". @@ -301,9 +301,9 @@ indicated by "nr" on the bit mask pointed to by "ADDR". They must execute atomically, yet there are no implicit memory barrier semantics required of these interfaces. - int test_and_set_bit(unsigned long nr, volatils unsigned long *addr); - int test_and_clear_bit(unsigned long nr, volatils unsigned long *addr); - int test_and_change_bit(unsigned long nr, volatils unsigned long *addr); + int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); + int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); + int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); Like the above, except that these routines return a boolean which indicates whether the changed bit was set _BEFORE_ the atomic bit @@ -335,7 +335,7 @@ subsequent memory operation is made visible. For example: /* ... */; obj->killed = 1; -The implementation of test_and_set_bit() must guarentee that +The implementation of test_and_set_bit() must guarantee that "obj->dead = 1;" is visible to cpus before the atomic memory operation done by test_and_set_bit() becomes visible. Likewise, the atomic memory operation done by test_and_set_bit() must become visible before @@ -474,7 +474,7 @@ Now, as far as memory barriers go, as long as spin_lock() strictly orders all subsequent memory operations (including the cas()) with respect to itself, things will be fine. -Said another way, _atomic_dec_and_lock() must guarentee that +Said another way, _atomic_dec_and_lock() must guarantee that a counter dropping to zero is never made visible before the spinlock being acquired. -- cgit v1.2.3 From f18190bd3407554ba6df30a1927e07e6cba93e56 Mon Sep 17 00:00:00 2001 From: Lee Revell Date: Mon, 26 Jun 2006 18:30:00 +0200 Subject: fix paniced->panicked typos In a testament to the utter simplicity and logic of the English language ;-), I found a single correct use - in kernel/panic.c - and 10-15 incorrect ones. Signed-Off-By: Lee Revell Signed-off-by: Adrian Bunk --- Documentation/kdump/gdbmacros.txt | 2 +- arch/i386/kernel/crash.c | 2 +- arch/mips/sgi-ip22/ip22-reset.c | 2 +- arch/mips/sgi-ip32/ip32-reset.c | 12 ++++++------ arch/powerpc/kernel/crash.c | 2 +- arch/x86_64/kernel/crash.c | 2 +- arch/x86_64/kernel/smp.c | 2 +- drivers/char/ipmi/ipmi_msghandler.c | 6 +++--- 8 files changed, 15 insertions(+), 15 deletions(-) diff --git a/Documentation/kdump/gdbmacros.txt b/Documentation/kdump/gdbmacros.txt index dcf5580380a..9b9b454b048 100644 --- a/Documentation/kdump/gdbmacros.txt +++ b/Documentation/kdump/gdbmacros.txt @@ -175,7 +175,7 @@ end document trapinfo Run info threads and lookup pid of thread #1 'trapinfo ' will tell you by which trap & possibly - addresthe kernel paniced. + address the kernel panicked. end diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 21dc1bbb806..13288d9793a 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -163,7 +163,7 @@ static void nmi_shootdown_cpus(void) void machine_crash_shutdown(struct pt_regs *regs) { /* This function is only called after the system - * has paniced or is otherwise in a critical state. + * has panicked or is otherwise in a critical state. * The minimum amount of code to allow a kexec'd kernel * to run successfully needs to happen here. * diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c index a9c58e067b5..8134220ed60 100644 --- a/arch/mips/sgi-ip22/ip22-reset.c +++ b/arch/mips/sgi-ip22/ip22-reset.c @@ -34,7 +34,7 @@ #define POWERDOWN_TIMEOUT 120 /* - * Blink frequency during reboot grace period and when paniced. + * Blink frequency during reboot grace period and when panicked. */ #define POWERDOWN_FREQ (HZ / 4) #define PANIC_FREQ (HZ / 8) diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c index ab9d9cef089..79ddb460565 100644 --- a/arch/mips/sgi-ip32/ip32-reset.c +++ b/arch/mips/sgi-ip32/ip32-reset.c @@ -28,13 +28,13 @@ #define POWERDOWN_TIMEOUT 120 /* - * Blink frequency during reboot grace period and when paniced. + * Blink frequency during reboot grace period and when panicked. */ #define POWERDOWN_FREQ (HZ / 4) #define PANIC_FREQ (HZ / 8) static struct timer_list power_timer, blink_timer, debounce_timer; -static int has_paniced, shuting_down; +static int has_panicked, shuting_down; static void ip32_machine_restart(char *command) __attribute__((noreturn)); static void ip32_machine_halt(void) __attribute__((noreturn)); @@ -109,7 +109,7 @@ static void debounce(unsigned long data) } CMOS_WRITE(reg_a & ~DS_REGA_DV0, RTC_REG_A); - if (has_paniced) + if (has_panicked) ip32_machine_restart(NULL); enable_irq(MACEISA_RTC_IRQ); @@ -117,7 +117,7 @@ static void debounce(unsigned long data) static inline void ip32_power_button(void) { - if (has_paniced) + if (has_panicked) return; if (shuting_down || kill_proc(1, SIGINT, 1)) { @@ -161,9 +161,9 @@ static int panic_event(struct notifier_block *this, unsigned long event, { unsigned long led; - if (has_paniced) + if (has_panicked) return NOTIFY_DONE; - has_paniced = 1; + has_panicked = 1; /* turn off the green LED */ led = mace->perif.ctrl.misc | MACEISA_LED_GREEN; diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c index dbcb85994f4..e253a45dcf1 100644 --- a/arch/powerpc/kernel/crash.c +++ b/arch/powerpc/kernel/crash.c @@ -179,7 +179,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs) /* * This function is only called after the system - * has paniced or is otherwise in a critical state. + * has panicked or is otherwise in a critical state. * The minimum amount of code to allow a kexec'd kernel * to run successfully needs to happen here. * diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c index 4e6c3b729e3..15beddc7fdf 100644 --- a/arch/x86_64/kernel/crash.c +++ b/arch/x86_64/kernel/crash.c @@ -161,7 +161,7 @@ void machine_crash_shutdown(struct pt_regs *regs) { /* * This function is only called after the system - * has paniced or is otherwise in a critical state. + * has panicked or is otherwise in a critical state. * The minimum amount of code to allow a kexec'd kernel * to run successfully needs to happen here. * diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index 4a6628b14d9..e369a3426df 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -470,7 +470,7 @@ void smp_send_stop(void) return; /* Don't deadlock on the call lock in panic */ if (!spin_trylock(&call_lock)) { - /* ignore locking because we have paniced anyways */ + /* ignore locking because we have panicked anyways */ nolock = 1; } __smp_call_function(smp_really_stop_cpu, NULL, 0, 0); diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 9f2f8fdec69..586f1f81937 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -3677,7 +3677,7 @@ static void send_panic_events(char *str) } #endif /* CONFIG_IPMI_PANIC_EVENT */ -static int has_paniced = 0; +static int has_panicked = 0; static int panic_event(struct notifier_block *this, unsigned long event, @@ -3686,9 +3686,9 @@ static int panic_event(struct notifier_block *this, int i; ipmi_smi_t intf; - if (has_paniced) + if (has_panicked) return NOTIFY_DONE; - has_paniced = 1; + has_panicked = 1; /* For every registered interface, set it to run to completion. */ for (i = 0; i < MAX_IPMI_INTERFACES; i++) { -- cgit v1.2.3 From d6e05edc59ecd79e8badf440c0d295a979bdfa3e Mon Sep 17 00:00:00 2001 From: Andreas Mohr Date: Mon, 26 Jun 2006 18:35:02 +0200 Subject: spelling fixes acquired (aquired) contiguous (contigious) successful (succesful, succesfull) surprise (suprise) whether (weather) some other misspellings Signed-off-by: Andreas Mohr Signed-off-by: Adrian Bunk --- arch/i386/kernel/cpu/cyrix.c | 2 +- arch/i386/kernel/i8259.c | 2 +- arch/mips/momentum/ocelot_g/gt-irq.c | 4 ++-- arch/powerpc/platforms/cell/spufs/switch.c | 2 +- arch/powerpc/platforms/pseries/eeh_cache.c | 2 +- arch/s390/kernel/vtime.c | 2 +- arch/um/drivers/ubd_kern.c | 2 +- arch/x86_64/kernel/i8259.c | 2 +- block/as-iosched.c | 2 +- block/ll_rw_blk.c | 4 ++-- drivers/atm/firestream.c | 2 +- drivers/char/agp/amd-k7-agp.c | 2 +- drivers/char/agp/ati-agp.c | 2 +- drivers/char/agp/efficeon-agp.c | 2 +- drivers/char/rio/riointr.c | 2 +- drivers/hwmon/asb100.c | 2 +- drivers/hwmon/lm78.c | 2 +- drivers/hwmon/lm80.c | 2 +- drivers/hwmon/lm87.c | 2 +- drivers/hwmon/sis5595.c | 2 +- drivers/hwmon/smsc47m1.c | 2 +- drivers/hwmon/w83627hf.c | 2 +- drivers/hwmon/w83781d.c | 2 +- drivers/hwmon/w83792d.c | 2 +- drivers/ide/ide-disk.c | 2 +- drivers/ide/ide-io.c | 2 +- drivers/ieee1394/hosts.c | 2 +- drivers/ieee1394/ieee1394_core.h | 2 +- drivers/isdn/divert/isdn_divert.c | 2 +- drivers/media/video/bt8xx/bttv-cards.c | 2 +- drivers/net/3c501.c | 4 ++-- drivers/net/irda/irport.c | 2 +- drivers/net/pcmcia/smc91c92_cs.c | 2 +- drivers/net/wireless/ipw2100.c | 2 +- drivers/pci/pci.c | 2 +- drivers/s390/scsi/zfcp_erp.c | 14 +++++++------- drivers/scsi/NCR5380.c | 2 +- drivers/scsi/advansys.c | 2 +- drivers/scsi/dc395x.c | 2 +- drivers/scsi/ibmmca.c | 8 ++++---- drivers/scsi/ips.c | 4 ++-- drivers/scsi/st.c | 2 +- fs/9p/mux.c | 2 +- fs/aio.c | 2 +- fs/jffs2/summary.c | 2 +- fs/jfs/jfs_extent.c | 8 ++++---- include/asm-i386/system.h | 2 +- include/asm-m32r/system.h | 2 +- include/linux/sunrpc/gss_api.h | 2 +- lib/kernel_lock.c | 4 ++-- mm/page_alloc.c | 2 +- mm/readahead.c | 4 ++-- net/sunrpc/auth_gss/gss_krb5_mech.c | 2 +- net/sunrpc/auth_gss/gss_spkm3_mech.c | 2 +- sound/core/seq/seq_memory.h | 2 +- sound/oss/sb_ess.c | 28 ++++++++++++++-------------- sound/pci/cs5535audio/cs5535audio_pcm.c | 2 +- 57 files changed, 88 insertions(+), 88 deletions(-) diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c index fc32c8028e2..f03b7f94c30 100644 --- a/arch/i386/kernel/cpu/cyrix.c +++ b/arch/i386/kernel/cpu/cyrix.c @@ -354,7 +354,7 @@ static void __init init_nsc(struct cpuinfo_x86 *c) * This function only handles the GX processor, and kicks every * thing else to the Cyrix init function above - that should * cover any processors that might have been branded differently - * after NSC aquired Cyrix. + * after NSC acquired Cyrix. * * If this breaks your GX1 horribly, please e-mail * info-linux@ldcmail.amd.com to tell us. diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c index b7636b96e10..c1a42feba28 100644 --- a/arch/i386/kernel/i8259.c +++ b/arch/i386/kernel/i8259.c @@ -175,7 +175,7 @@ static void mask_and_ack_8259A(unsigned int irq) * Lightweight spurious IRQ detection. We do not want * to overdo spurious IRQ handling - it's usually a sign * of hardware problems, so we only do the checks we can - * do without slowing down good hardware unnecesserily. + * do without slowing down good hardware unnecessarily. * * Note that IRQ7 and IRQ15 (the two spurious IRQs * usually resulting from the 8259A-1|2 PICs) occur diff --git a/arch/mips/momentum/ocelot_g/gt-irq.c b/arch/mips/momentum/ocelot_g/gt-irq.c index e5eceed1bef..8bd9b844fa9 100644 --- a/arch/mips/momentum/ocelot_g/gt-irq.c +++ b/arch/mips/momentum/ocelot_g/gt-irq.c @@ -59,7 +59,7 @@ void hook_irq_handler(int int_cause, int bit_num, void *isr_ptr) * bit_num - Indicates which bit number in the cause register * * Outputs : - * 1 if succesful, 0 if failure + * 1 if successful, 0 if failure */ int enable_galileo_irq(int int_cause, int bit_num) { @@ -83,7 +83,7 @@ int enable_galileo_irq(int int_cause, int bit_num) * bit_num - Indicates which bit number in the cause register * * Outputs : - * 1 if succesful, 0 if failure + * 1 if successful, 0 if failure */ int disable_galileo_irq(int int_cause, int bit_num) { diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c index b30e55dab83..3068b429b03 100644 --- a/arch/powerpc/platforms/cell/spufs/switch.c +++ b/arch/powerpc/platforms/cell/spufs/switch.c @@ -2100,7 +2100,7 @@ EXPORT_SYMBOL_GPL(spu_save); * @spu: pointer to SPU iomem structure. * * Perform harvest + restore, as we may not be coming - * from a previous succesful save operation, and the + * from a previous successful save operation, and the * hardware state is unknown. */ int spu_restore(struct spu_state *new, struct spu *spu) diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c index 98c23aec85b..c37a8497c60 100644 --- a/arch/powerpc/platforms/pseries/eeh_cache.c +++ b/arch/powerpc/platforms/pseries/eeh_cache.c @@ -287,7 +287,7 @@ void pci_addr_cache_remove_device(struct pci_dev *dev) * find the pci device that corresponds to a given address. * This routine scans all pci busses to build the cache. * Must be run late in boot process, after the pci controllers - * have been scaned for devices (after all device resources are known). + * have been scanned for devices (after all device resources are known). */ void __init pci_addr_cache_build(void) { diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index dfe6f085661..1f0439dc245 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -356,7 +356,7 @@ static void internal_add_vtimer(struct vtimer_list *timer) set_vtimer(event->expires); spin_unlock_irqrestore(&vt_list->lock, flags); - /* release CPU aquired in prepare_vtimer or mod_virt_timer() */ + /* release CPU acquired in prepare_vtimer or mod_virt_timer() */ put_cpu(); } diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 0897852b09a..290cec6d69e 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -1222,7 +1222,7 @@ int open_ubd_file(char *file, struct openflags *openflags, int shared, } } - /* Succesful return case! */ + /* Successful return case! */ if(backing_file_out == NULL) return(fd); diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c index 5ecd34ab8c2..573990a6d66 100644 --- a/arch/x86_64/kernel/i8259.c +++ b/arch/x86_64/kernel/i8259.c @@ -278,7 +278,7 @@ static void mask_and_ack_8259A(unsigned int irq) * Lightweight spurious IRQ detection. We do not want * to overdo spurious IRQ handling - it's usually a sign * of hardware problems, so we only do the checks we can - * do without slowing down good hardware unnecesserily. + * do without slowing down good hardware unnecessarily. * * Note that IRQ7 and IRQ15 (the two spurious IRQs * usually resulting from the 8259A-1|2 PICs) occur diff --git a/block/as-iosched.c b/block/as-iosched.c index 1ec5df46670..3af31ed49a9 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -892,7 +892,7 @@ static int as_can_break_anticipation(struct as_data *ad, struct as_rq *arq) } /* - * as_can_anticipate indicates weather we should either run arq + * as_can_anticipate indicates whether we should either run arq * or keep anticipating a better request. */ static int as_can_anticipate(struct as_data *ad, struct as_rq *arq) diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 0603ab2f369..c04422a502d 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -2745,7 +2745,7 @@ static int attempt_merge(request_queue_t *q, struct request *req, return 0; /* - * not contigious + * not contiguous */ if (req->sector + req->nr_sectors != next->sector) return 0; @@ -3415,7 +3415,7 @@ static struct notifier_block blk_cpu_notifier = { * * Description: * Ends all I/O on a request. It does not handle partial completions, - * unless the driver actually implements this in its completionc callback + * unless the driver actually implements this in its completion callback * through requeueing. Theh actual completion happens out-of-order, * through a softirq handler. The user must have registered a completion * callback through blk_queue_softirq_done(). diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c index 7f7ec288824..f2eeaf9dc56 100644 --- a/drivers/atm/firestream.c +++ b/drivers/atm/firestream.c @@ -951,7 +951,7 @@ static int fs_open(struct atm_vcc *atm_vcc) it most likely that the chip will notice it. It also prevents us from having to wait for completion. On the other hand, we may need to wait for completion anyway, to see if it completed - succesfully. */ + successfully. */ switch (atm_vcc->qos.aal) { case ATM_AAL2: diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c index 1f776651ac6..51d0d562d01 100644 --- a/drivers/char/agp/amd-k7-agp.c +++ b/drivers/char/agp/amd-k7-agp.c @@ -118,7 +118,7 @@ static int amd_create_gatt_pages(int nr_tables) return retval; } -/* Since we don't need contigious memory we just try +/* Since we don't need contiguous memory we just try * to get the gatt table once */ diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c index 06fd10ba0c5..16056434599 100644 --- a/drivers/char/agp/ati-agp.c +++ b/drivers/char/agp/ati-agp.c @@ -261,7 +261,7 @@ static int agp_ati_suspend(struct pci_dev *dev, pm_message_t state) #endif /* - *Since we don't need contigious memory we just try + *Since we don't need contiguous memory we just try * to get the gatt table once */ diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c index 86a966b6523..b788b0a3bbf 100644 --- a/drivers/char/agp/efficeon-agp.c +++ b/drivers/char/agp/efficeon-agp.c @@ -177,7 +177,7 @@ static int efficeon_free_gatt_table(struct agp_bridge_data *bridge) /* - * Since we don't need contigious memory we just try + * Since we don't need contiguous memory we just try * to get the gatt table once */ diff --git a/drivers/char/rio/riointr.c b/drivers/char/rio/riointr.c index eec1fea0cb9..0bd09040a5c 100644 --- a/drivers/char/rio/riointr.c +++ b/drivers/char/rio/riointr.c @@ -546,7 +546,7 @@ static void RIOReceive(struct rio_info *p, struct Port *PortP) ** run out of space it will be set to the offset of the ** next byte to copy from the packet data area. The packet ** length field is decremented by the number of bytes that - ** we succesfully removed from the packet. When this reaches + ** we successfully removed from the packet. When this reaches ** zero, we reset the offset pointer to be zero, and free ** the packet from the front of the queue. */ diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c index 65b2709f750..facc1ccb833 100644 --- a/drivers/hwmon/asb100.c +++ b/drivers/hwmon/asb100.c @@ -341,7 +341,7 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan divisor. This follows the principle of - least suprise; the user doesn't expect the fan minimum to change just + least surprise; the user doesn't expect the fan minimum to change just because the divisor changed. */ static ssize_t set_fan_div(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index 94be3d797e6..a6ce7abf860 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -358,7 +358,7 @@ static ssize_t show_fan_div(struct device *dev, char *buf, int nr) /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan divisor. This follows the principle of - least suprise; the user doesn't expect the fan minimum to change just + least surprise; the user doesn't expect the fan minimum to change just because the divisor changed. */ static ssize_t set_fan_div(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c index f72120d08c4..b4ccdfc0120 100644 --- a/drivers/hwmon/lm80.c +++ b/drivers/hwmon/lm80.c @@ -253,7 +253,7 @@ set_fan(min2, fan_min[1], LM80_REG_FAN_MIN(2), fan_div[1]); /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan divisor. This follows the principle of - least suprise; the user doesn't expect the fan minimum to change just + least surprise; the user doesn't expect the fan minimum to change just because the divisor changed. */ static ssize_t set_fan_div(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index e229daf666d..e6c1b638c97 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c @@ -421,7 +421,7 @@ static void set_fan_min(struct device *dev, const char *buf, int nr) /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan clock divider. This follows the principle - of least suprise; the user doesn't expect the fan minimum to change just + of least surprise; the user doesn't expect the fan minimum to change just because the divider changed. */ static ssize_t set_fan_div(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index 6f3fda73f70..063f71c5f07 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -380,7 +380,7 @@ static ssize_t show_fan_div(struct device *dev, char *buf, int nr) /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan divisor. This follows the principle of - least suprise; the user doesn't expect the fan minimum to change just + least surprise; the user doesn't expect the fan minimum to change just because the divisor changed. */ static ssize_t set_fan_div(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 7732aec5459..825e8f72698 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -207,7 +207,7 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan clock divider. This follows the principle - of least suprise; the user doesn't expect the fan minimum to change just + of least surprise; the user doesn't expect the fan minimum to change just because the divider changed. */ static ssize_t set_fan_div(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 71fb7f1af8f..79368d53c36 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -781,7 +781,7 @@ show_fan_div_reg(struct device *dev, char *buf, int nr) /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan divisor. This follows the principle of - least suprise; the user doesn't expect the fan minimum to change just + least surprise; the user doesn't expect the fan minimum to change just because the divisor changed. */ static ssize_t store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index e4c700356c4..7be469ed0f8 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -630,7 +630,7 @@ show_fan_div_reg(struct device *dev, char *buf, int nr) /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan divisor. This follows the principle of - least suprise; the user doesn't expect the fan minimum to change just + least surprise; the user doesn't expect the fan minimum to change just because the divisor changed. */ static ssize_t store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr) diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c index 4ef884c216e..e407c74bda3 100644 --- a/drivers/hwmon/w83792d.c +++ b/drivers/hwmon/w83792d.c @@ -463,7 +463,7 @@ show_fan_div(struct device *dev, struct device_attribute *attr, /* Note: we save and restore the fan minimum here, because its value is determined in part by the fan divisor. This follows the principle of - least suprise; the user doesn't expect the fan minimum to change just + least surprise; the user doesn't expect the fan minimum to change just because the divisor changed. */ static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr, diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index a5017de72da..f033d732f38 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -37,7 +37,7 @@ * Version 1.15 convert all calls to ide_raw_taskfile * since args will return register content. * Version 1.16 added suspend-resume-checkpower - * Version 1.17 do flush on standy, do flush on ATA < ATA6 + * Version 1.17 do flush on standby, do flush on ATA < ATA6 * fix wcache setup. */ diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 622a55c72f0..05ba8e01e63 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -1665,7 +1665,7 @@ irqreturn_t ide_intr (int irq, void *dev_id, struct pt_regs *regs) * Initialize a request before we fill it in and send it down to * ide_do_drive_cmd. Commands must be set up by this function. Right * now it doesn't do a lot, but if that changes abusers will have a - * nasty suprise. + * nasty surprise. */ void ide_init_drive_cmd (struct request *rq) diff --git a/drivers/ieee1394/hosts.c b/drivers/ieee1394/hosts.c index 2d47b11777a..ad49c040b67 100644 --- a/drivers/ieee1394/hosts.c +++ b/drivers/ieee1394/hosts.c @@ -103,7 +103,7 @@ static int alloc_hostnum_cb(struct hpsb_host *host, void *__data) * driver specific parts, enable the controller and make it available * to the general subsystem using hpsb_add_host(). * - * Return Value: a pointer to the &hpsb_host if succesful, %NULL if + * Return Value: a pointer to the &hpsb_host if successful, %NULL if * no memory was available. */ static DEFINE_MUTEX(host_num_alloc); diff --git a/drivers/ieee1394/ieee1394_core.h b/drivers/ieee1394/ieee1394_core.h index e7b55e895f5..0ecbf335c64 100644 --- a/drivers/ieee1394/ieee1394_core.h +++ b/drivers/ieee1394/ieee1394_core.h @@ -139,7 +139,7 @@ int hpsb_bus_reset(struct hpsb_host *host); /* * Hand over received selfid packet to the core. Complement check (second - * quadlet is complement of first) is expected to be done and succesful. + * quadlet is complement of first) is expected to be done and successful. */ void hpsb_selfid_received(struct hpsb_host *host, quadlet_t sid); diff --git a/drivers/isdn/divert/isdn_divert.c b/drivers/isdn/divert/isdn_divert.c index f1a1f9a9b88..1f5ebe9ee72 100644 --- a/drivers/isdn/divert/isdn_divert.c +++ b/drivers/isdn/divert/isdn_divert.c @@ -592,7 +592,7 @@ static int put_address(char *st, u_char *p, int len) } /* put_address */ /*************************************/ -/* report a succesfull interrogation */ +/* report a successful interrogation */ /*************************************/ static int interrogate_success(isdn_ctrl *ic, struct call_struc *cs) { char *src = ic->parm.dss1_io.data; diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c index 3116345c93b..e68a6d2fff2 100644 --- a/drivers/media/video/bt8xx/bttv-cards.c +++ b/drivers/media/video/bt8xx/bttv-cards.c @@ -4848,7 +4848,7 @@ static void picolo_tetra_muxsel (struct bttv* btv, unsigned int input) * * The IVC120G security card has 4 i2c controlled TDA8540 matrix * swichers to provide 16 channels to MUX0. The TDA8540's have - * 4 indepedant outputs and as such the IVC120G also has the + * 4 independent outputs and as such the IVC120G also has the * optional "Monitor Out" bus. This allows the card to be looking * at one input while the monitor is looking at another. * diff --git a/drivers/net/3c501.c b/drivers/net/3c501.c index bb44509fd40..07136ec423b 100644 --- a/drivers/net/3c501.c +++ b/drivers/net/3c501.c @@ -508,11 +508,11 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev) * speak of. We simply pull the packet out of its PIO buffer (which is slow) * and queue it for the kernel. Then we reset the card for the next packet. * - * We sometimes get suprise interrupts late both because the SMP IRQ delivery + * We sometimes get surprise interrupts late both because the SMP IRQ delivery * is message passing and because the card sometimes seems to deliver late. I * think if it is part way through a receive and the mode is changed it carries * on receiving and sends us an interrupt. We have to band aid all these cases - * to get a sensible 150kbytes/second performance. Even then you want a small + * to get a sensible 150kBytes/second performance. Even then you want a small * TCP window. */ diff --git a/drivers/net/irda/irport.c b/drivers/net/irda/irport.c index 98fa5319e5c..44efd49bf4a 100644 --- a/drivers/net/irda/irport.c +++ b/drivers/net/irda/irport.c @@ -386,7 +386,7 @@ static int __irport_change_speed(struct irda_task *task) /* Locking notes : this function may be called from irq context with * spinlock, via irport_write_wakeup(), or from non-interrupt without * spinlock (from the task timer). Yuck ! - * This is ugly, and unsafe is the spinlock is not already aquired. + * This is ugly, and unsafe is the spinlock is not already acquired. * This will be fixed when irda-task get rewritten. * Jean II */ if (!spin_is_locked(&self->lock)) { diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index e74bf5014ef..a73d5455303 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -1883,7 +1883,7 @@ static void smc_reset(struct net_device *dev) /* Set the Window 1 control, configuration and station addr registers. No point in writing the I/O base register ;-> */ SMC_SELECT_BANK(1); - /* Automatically release succesfully transmitted packets, + /* Automatically release successfully transmitted packets, Accept link errors, counter and Tx error interrupts. */ outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE, ioaddr + CONTROL); diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c index 72335c8eb97..94aeb23a772 100644 --- a/drivers/net/wireless/ipw2100.c +++ b/drivers/net/wireless/ipw2100.c @@ -1485,7 +1485,7 @@ static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv) * * Sending the PREPARE_FOR_POWER_DOWN will restrict the * hardware from going into standby mode and will transition - * out of D0-standy if it is already in that state. + * out of D0-standby if it is already in that state. * * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the * driver upon completion. Once received, the driver can diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index d408a3c3042..23d3b17c8ca 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -369,7 +369,7 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) /* * Give firmware a chance to be called, such as ACPI _PRx, _PSx - * Firmware method after natice method ? + * Firmware method after native method ? */ if (platform_pci_set_power_state) platform_pci_set_power_state(dev, state); diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 4682c8b8bd2..909731b99d2 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -167,7 +167,7 @@ zfcp_fsf_scsi_er_timeout_handler(unsigned long data) * initiates adapter recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int @@ -203,7 +203,7 @@ zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *adapter, int clear_mask) * purpose: Wrappper for zfcp_erp_adapter_reopen_internal * used to ensure the correct locking * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int @@ -469,7 +469,7 @@ zfcp_test_link(struct zfcp_port *port) * initiates Forced Reopen recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ static int @@ -509,7 +509,7 @@ zfcp_erp_port_forced_reopen_internal(struct zfcp_port *port, int clear_mask) * purpose: Wrappper for zfcp_erp_port_forced_reopen_internal * used to ensure the correct locking * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int @@ -536,7 +536,7 @@ zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear_mask) * initiates Reopen recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ static int @@ -605,7 +605,7 @@ zfcp_erp_port_reopen(struct zfcp_port *port, int clear_mask) * initiates Reopen recovery which is done * asynchronously * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ static int @@ -1805,7 +1805,7 @@ zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u32 mask, int set_or_clear) * purpose: Wrappper for zfcp_erp_port_reopen_all_internal * used to ensure the correct locking * - * returns: 0 - initiated action succesfully + * returns: 0 - initiated action successfully * <0 - failed to initiate action */ int diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index fa57e0b4a5f..75f2f7ae2a8 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -500,7 +500,7 @@ static void NCR5380_print_phase(struct Scsi_Host *instance) /* * Function : int should_disconnect (unsigned char cmd) * - * Purpose : decide weather a command would normally disconnect or + * Purpose : decide whether a command would normally disconnect or * not, since if it won't disconnect we should go to sleep. * * Input : cmd - opcode of SCSI command diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 5ee47555a8a..dd9fb3d9100 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -12374,7 +12374,7 @@ AscInitFromEEP(ASC_DVC_VAR *asc_dvc) ASC_PRINT1( "AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", i); } else { - ASC_PRINT("AscInitFromEEP: Succesfully re-wrote EEPROM."); + ASC_PRINT("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); } } return (warn_code); diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index 18324525493..58b0748045e 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -3771,7 +3771,7 @@ static void request_sense(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb, * @target: The target for the new device. * @lun: The lun for the new device. * - * Return the new device if succesfull or NULL on failure. + * Return the new device if successful or NULL on failure. **/ static struct DeviceCtlBlk *device_alloc(struct AdapterCtlBlk *acb, u8 target, u8 lun) diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c index 115f55471ed..497f6642b2d 100644 --- a/drivers/scsi/ibmmca.c +++ b/drivers/scsi/ibmmca.c @@ -760,7 +760,7 @@ static int device_inquiry(int host_index, int ldn) while (!got_interrupt(host_index)) barrier(); - /*if command succesful, break */ + /*if command successful, break */ if ((stat_result(host_index) == IM_SCB_CMD_COMPLETED) || (stat_result(host_index) == IM_SCB_CMD_COMPLETED_WITH_RETRIES)) return 1; } @@ -885,7 +885,7 @@ static int immediate_assign(int host_index, unsigned int pun, unsigned int lun, while (!got_interrupt(host_index)) barrier(); - /*if command succesful, break */ + /*if command successful, break */ if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) return 1; } @@ -921,7 +921,7 @@ static int immediate_feature(int host_index, unsigned int speed, unsigned int ti return 2; } else global_command_error_excuse = 0; - /*if command succesful, break */ + /*if command successful, break */ if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) return 1; } @@ -959,7 +959,7 @@ static int immediate_reset(int host_index, unsigned int ldn) /* did not work, finish */ return 1; } - /*if command succesful, break */ + /*if command successful, break */ if (stat_result(host_index) == IM_IMMEDIATE_CMD_COMPLETED) return 1; } diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 5353b28b293..78f2ff736c3 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -6438,7 +6438,7 @@ ips_erase_bios(ips_ha_t * ha) /* VPP failure */ return (1); - /* check for succesful flash */ + /* check for successful flash */ if (status & 0x30) /* sequence error */ return (1); @@ -6550,7 +6550,7 @@ ips_erase_bios_memio(ips_ha_t * ha) /* VPP failure */ return (1); - /* check for succesful flash */ + /* check for successful flash */ if (status & 0x30) /* sequence error */ return (1); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 1272dd249af..b5218fc0ac8 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -2818,7 +2818,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon (cmdstatp->sense_hdr.sense_key == NO_SENSE || cmdstatp->sense_hdr.sense_key == RECOVERED_ERROR) && undone == 0) { - ioctl_result = 0; /* EOF written succesfully at EOM */ + ioctl_result = 0; /* EOF written successfully at EOM */ if (fileno >= 0) fileno++; STps->drv_file = fileno; diff --git a/fs/9p/mux.c b/fs/9p/mux.c index f4407eb276c..12e1baa4508 100644 --- a/fs/9p/mux.c +++ b/fs/9p/mux.c @@ -712,7 +712,7 @@ static void v9fs_read_work(void *a) * v9fs_send_request - send 9P request * The function can sleep until the request is scheduled for sending. * The function can be interrupted. Return from the function is not - * a guarantee that the request is sent succesfully. Can return errors + * a guarantee that the request is sent successfully. Can return errors * that can be retrieved by PTR_ERR macros. * * @m: mux data diff --git a/fs/aio.c b/fs/aio.c index 8c34a62df7d..950630187ac 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -641,7 +641,7 @@ static inline int __queue_kicked_iocb(struct kiocb *iocb) * invoked both for initial i/o submission and * subsequent retries via the aio_kick_handler. * Expects to be invoked with iocb->ki_ctx->lock - * already held. The lock is released and reaquired + * already held. The lock is released and reacquired * as needed during processing. * * Calls the iocb retry method (already setup for the diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c index 0b02fc79e4d..be1acc3dad9 100644 --- a/fs/jffs2/summary.c +++ b/fs/jffs2/summary.c @@ -43,7 +43,7 @@ int jffs2_sum_init(struct jffs2_sb_info *c) return -ENOMEM; } - dbg_summary("returned succesfully\n"); + dbg_summary("returned successfully\n"); return 0; } diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c index 5549378358b..4d52593a5fc 100644 --- a/fs/jfs/jfs_extent.c +++ b/fs/jfs/jfs_extent.c @@ -126,7 +126,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr) /* allocate the disk blocks for the extent. initially, extBalloc() * will try to allocate disk blocks for the requested size (xlen). - * if this fails (xlen contigious free blocks not avaliable), it'll + * if this fails (xlen contiguous free blocks not avaliable), it'll * try to allocate a smaller number of blocks (producing a smaller * extent), with this smaller number of blocks consisting of the * requested number of blocks rounded down to the next smaller @@ -493,7 +493,7 @@ int extFill(struct inode *ip, xad_t * xp) * * initially, we will try to allocate disk blocks for the * requested size (nblocks). if this fails (nblocks - * contigious free blocks not avaliable), we'll try to allocate + * contiguous free blocks not avaliable), we'll try to allocate * a smaller number of blocks (producing a smaller extent), with * this smaller number of blocks consisting of the requested * number of blocks rounded down to the next smaller power of 2 @@ -529,7 +529,7 @@ extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno) /* get the number of blocks to initially attempt to allocate. * we'll first try the number of blocks requested unless this - * number is greater than the maximum number of contigious free + * number is greater than the maximum number of contiguous free * blocks in the map. in that case, we'll start off with the * maximum free. */ @@ -586,7 +586,7 @@ extBalloc(struct inode *ip, s64 hint, s64 * nblocks, s64 * blkno) * in place. if this fails, we'll try to move the extent * to a new set of blocks. if moving the extent, we initially * will try to allocate disk blocks for the requested size - * (nnew). if this fails (nnew contigious free blocks not + * (nnew). if this fails (new contiguous free blocks not * avaliable), we'll try to allocate a smaller number of * blocks (producing a smaller extent), with this smaller * number of blocks consisting of the requested number of diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h index 0249f912a29..cab0180567f 100644 --- a/include/asm-i386/system.h +++ b/include/asm-i386/system.h @@ -427,7 +427,7 @@ static inline unsigned long long __cmpxchg64(volatile void *ptr, unsigned long l * does not enforce ordering, since there is no data dependency between * the read of "a" and the read of "b". Therefore, on some CPUs, such * as Alpha, "y" could be set to 3 and "x" to 0. Use rmb() - * in cases like thiswhere there are no data dependencies. + * in cases like this where there are no data dependencies. **/ #define read_barrier_depends() do { } while(0) diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h index 33567e8bfe6..66c4742f09e 100644 --- a/include/asm-m32r/system.h +++ b/include/asm-m32r/system.h @@ -318,7 +318,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) * does not enforce ordering, since there is no data dependency between * the read of "a" and the read of "b". Therefore, on some CPUs, such * as Alpha, "y" could be set to 3 and "x" to 0. Use rmb() - * in cases like thiswhere there are no data dependencies. + * in cases like this where there are no data dependencies. **/ #define read_barrier_depends() do { } while (0) diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h index 9b8bcf125c1..6e112cc5cdd 100644 --- a/include/linux/sunrpc/gss_api.h +++ b/include/linux/sunrpc/gss_api.h @@ -126,7 +126,7 @@ struct gss_api_mech *gss_mech_get_by_pseudoflavor(u32); /* Just increments the mechanism's reference count and returns its input: */ struct gss_api_mech * gss_mech_get(struct gss_api_mech *); -/* For every succesful gss_mech_get or gss_mech_get_by_* call there must be a +/* For every successful gss_mech_get or gss_mech_get_by_* call there must be a * corresponding call to gss_mech_put. */ void gss_mech_put(struct gss_api_mech *); diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c index cb5490ec00f..e713e86811a 100644 --- a/lib/kernel_lock.c +++ b/lib/kernel_lock.c @@ -14,7 +14,7 @@ * The 'big kernel semaphore' * * This mutex is taken and released recursively by lock_kernel() - * and unlock_kernel(). It is transparently dropped and reaquired + * and unlock_kernel(). It is transparently dropped and reacquired * over schedule(). It is used to protect legacy code that hasn't * been migrated to a proper locking design yet. * @@ -92,7 +92,7 @@ void __lockfunc unlock_kernel(void) * The 'big kernel lock' * * This spinlock is taken and released recursively by lock_kernel() - * and unlock_kernel(). It is transparently dropped and reaquired + * and unlock_kernel(). It is transparently dropped and reacquired * over schedule(). It is used to protect legacy code that hasn't * been migrated to a proper locking design yet. * diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6c1174fcf52..9f86191bb63 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -266,7 +266,7 @@ static inline void rmv_page_order(struct page *page) * satisfies the following equation: * P = B & ~(1 << O) * - * Assumption: *_mem_map is contigious at least up to MAX_ORDER + * Assumption: *_mem_map is contiguous at least up to MAX_ORDER */ static inline struct page * __page_find_buddy(struct page *page, unsigned long page_idx, unsigned int order) diff --git a/mm/readahead.c b/mm/readahead.c index e39e416860d..aa7ec424656 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -390,8 +390,8 @@ int do_page_cache_readahead(struct address_space *mapping, struct file *filp, * Read 'nr_to_read' pages starting at page 'offset'. If the flag 'block' * is set wait till the read completes. Otherwise attempt to read without * blocking. - * Returns 1 meaning 'success' if read is succesfull without switching off - * readhaead mode. Otherwise return failure. + * Returns 1 meaning 'success' if read is successful without switching off + * readahead mode. Otherwise return failure. */ static int blockable_page_cache_readahead(struct address_space *mapping, struct file *filp, diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c index 129e2bd36af..b8714a87b34 100644 --- a/net/sunrpc/auth_gss/gss_krb5_mech.c +++ b/net/sunrpc/auth_gss/gss_krb5_mech.c @@ -169,7 +169,7 @@ gss_import_sec_context_kerberos(const void *p, } ctx_id->internal_ctx_id = ctx; - dprintk("RPC: Succesfully imported new context.\n"); + dprintk("RPC: Successfully imported new context.\n"); return 0; out_err_free_key2: diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c index 5bf11ccba7c..3d0432aa45c 100644 --- a/net/sunrpc/auth_gss/gss_spkm3_mech.c +++ b/net/sunrpc/auth_gss/gss_spkm3_mech.c @@ -201,7 +201,7 @@ gss_import_sec_context_spkm3(const void *p, size_t len, ctx_id->internal_ctx_id = ctx; - dprintk("Succesfully imported new spkm context.\n"); + dprintk("Successfully imported new spkm context.\n"); return 0; out_err_free_key2: diff --git a/sound/core/seq/seq_memory.h b/sound/core/seq/seq_memory.h index 39c60d9e1ef..63e91431a29 100644 --- a/sound/core/seq/seq_memory.h +++ b/sound/core/seq/seq_memory.h @@ -31,7 +31,7 @@ struct snd_seq_event_cell { struct snd_seq_event_cell *next; /* next cell */ }; -/* design note: the pool is a contigious block of memory, if we dynamicly +/* design note: the pool is a contiguous block of memory, if we dynamicly want to add additional cells to the pool be better store this in another pool as we need to know the base address of the pool when releasing memory. */ diff --git a/sound/oss/sb_ess.c b/sound/oss/sb_ess.c index fae05fe3de4..180e95c87e3 100644 --- a/sound/oss/sb_ess.c +++ b/sound/oss/sb_ess.c @@ -97,19 +97,19 @@ * * The documentation is an adventure: it's close but not fully accurate. I * found out that after a reset some registers are *NOT* reset, though the - * docs say the would be. Interresting ones are 0x7f, 0x7d and 0x7a. They are - * related to the Audio 2 channel. I also was suprised about the consequenses + * docs say the would be. Interesting ones are 0x7f, 0x7d and 0x7a. They are + * related to the Audio 2 channel. I also was surprised about the consequences * of writing 0x00 to 0x7f (which should be done by reset): The ES1887 moves * into ES1888 mode. This means that it claims IRQ 11, which happens to be my * ISDN adapter. Needless to say it no longer worked. I now understand why * after rebooting 0x7f already was 0x05, the value of my choice: the BIOS * did it. * - * Oh, and this is another trap: in ES1887 docs mixer register 0x70 is decribed - * as if it's exactly the same as register 0xa1. This is *NOT* true. The - * description of 0x70 in ES1869 docs is accurate however. + * Oh, and this is another trap: in ES1887 docs mixer register 0x70 is + * described as if it's exactly the same as register 0xa1. This is *NOT* true. + * The description of 0x70 in ES1869 docs is accurate however. * Well, the assumption about ES1869 was wrong: register 0x70 is very much - * like register 0xa1, except that bit 7 is allways 1, whatever you want + * like register 0xa1, except that bit 7 is always 1, whatever you want * it to be. * * When using audio 2 mixer register 0x72 seems te be meaningless. Only 0xa2 @@ -117,10 +117,10 @@ * * Software reset not being able to reset all registers is great! Especially * the fact that register 0x78 isn't reset is great when you wanna change back - * to single dma operation (simplex): audio 2 is still operation, and uses the - * same dma as audio 1: your ess changes into a funny echo machine. + * to single dma operation (simplex): audio 2 is still operational, and uses + * the same dma as audio 1: your ess changes into a funny echo machine. * - * Received the new that ES1688 is detected as a ES1788. Did some thinking: + * Received the news that ES1688 is detected as a ES1788. Did some thinking: * the ES1887 detection scheme suggests in step 2 to try if bit 3 of register * 0x64 can be changed. This is inaccurate, first I inverted the * check: "If * can be modified, it's a 1688", which lead to a correct detection @@ -135,7 +135,7 @@ * About recognition of ESS chips * * The distinction of ES688, ES1688, ES1788, ES1887 and ES1888 is described in - * a (preliminary ??) datasheet on ES1887. It's aim is to identify ES1887, but + * a (preliminary ??) datasheet on ES1887. Its aim is to identify ES1887, but * during detection the text claims that "this chip may be ..." when a step * fails. This scheme is used to distinct between the above chips. * It appears however that some PnP chips like ES1868 are recognized as ES1788 @@ -156,9 +156,9 @@ * * The existing ES1688 support didn't take care of the ES1688+ recording * levels very well. Whenever a device was selected (recmask) for recording - * it's recording level was loud, and it couldn't be changed. The fact that + * its recording level was loud, and it couldn't be changed. The fact that * internal register 0xb4 could take care of RECLEV, didn't work meaning until - * it's value was restored every time the chip was reset; this reset the + * its value was restored every time the chip was reset; this reset the * value of 0xb4 too. I guess that's what 4front also had (have?) trouble with. * * About ES1887 support: @@ -169,9 +169,9 @@ * the latter case the recording volumes are 0. * Now recording levels of inputs can be controlled, by changing the playback * levels. Futhermore several devices can be recorded together (which is not - * possible with the ES1688. + * possible with the ES1688). * Besides the separate recording level control for each input, the common - * recordig level can also be controlled by RECLEV as described above. + * recording level can also be controlled by RECLEV as described above. * * Not only ES1887 have this recording mixer. I know the following from the * documentation: diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c index f0a48693d68..5450a9e8f13 100644 --- a/sound/pci/cs5535audio/cs5535audio_pcm.c +++ b/sound/pci/cs5535audio/cs5535audio_pcm.c @@ -143,7 +143,7 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au, if (dma->periods == periods && dma->period_bytes == period_bytes) return 0; - /* the u32 cast is okay because in snd*create we succesfully told + /* the u32 cast is okay because in snd*create we successfully told pci alloc that we're only 32 bit capable so the uppper will be 0 */ addr = (u32) substream->runtime->dma_addr; desc_addr = (u32) dma->desc_buf.addr; -- cgit v1.2.3 From bc940c40c6473cb40178458e2c74aea6b45aac03 Mon Sep 17 00:00:00 2001 From: Matthew Martin Date: Mon, 26 Jun 2006 18:43:54 +0200 Subject: ixj: make ixj_set_tone_off() static Signed-off-by: Matthew Martin Signed-off-by: Alexey Dobriyan Signed-off-by: Adrian Bunk --- drivers/telephony/ixj.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c index 5578a9dd04e..f6b2948ab28 100644 --- a/drivers/telephony/ixj.c +++ b/drivers/telephony/ixj.c @@ -5712,7 +5712,7 @@ static int ixj_daa_write(IXJ *j) return 1; } -int ixj_set_tone_off(unsigned short arg, IXJ *j) +static int ixj_set_tone_off(unsigned short arg, IXJ *j) { j->tone_off_time = arg; if (ixj_WriteDSPCommand(0x6E05, j)) /* Set Tone Off Period */ -- cgit v1.2.3 From 48a1204c462985378e02b4c5129901f3dbc93f80 Mon Sep 17 00:00:00 2001 From: Egry Gabor Date: Mon, 26 Jun 2006 18:47:15 +0200 Subject: i386: Trivial typo fixes Trivial typo fixes in Kconfig files (i386). Signed-off-by: Egry Gabor Signed-off-by: Adrian Bunk --- arch/i386/Kconfig | 2 +- arch/i386/Kconfig.cpu | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 1596101cfaf..e14b2078399 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -721,7 +721,7 @@ config KEXEC help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot - but it is indepedent of the system firmware. And like a reboot + but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux. The name comes from the similiarity to the exec system call. diff --git a/arch/i386/Kconfig.cpu b/arch/i386/Kconfig.cpu index eb130482ba1..21c9a4e7110 100644 --- a/arch/i386/Kconfig.cpu +++ b/arch/i386/Kconfig.cpu @@ -41,7 +41,7 @@ config M386 - "GeodeGX1" for Geode GX1 (Cyrix MediaGX). - "Geode GX/LX" For AMD Geode GX and LX processors. - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3. - - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above). + - "VIA C3-2" for VIA C3-2 "Nehemiah" (model 9 and above). If you don't know what to do, choose "386". -- cgit v1.2.3 From b184a4c9a4e542890265b4cdd3ff7908f4adc9c4 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 26 Jun 2006 17:48:29 +0100 Subject: [ARM] 3654/1: add ajeco 1arm sbc support Patch from Lennert Buytenhek This patch adds support for the Ajeco 1ARM Single Board Computer, a VME form factor SBC based on the Atmel AT91 SoC, with 64M RAM, seven serial ports, three ethernet ports, IDE, CF, USB host and device, and S-Video/VGA out.-- Signed-off-by: Lennert Buytenhek Signed-off-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/boot/compressed/head-at91rm9200.S | 6 + arch/arm/configs/onearm_defconfig | 1053 ++++++++++++++++++++++++++++ arch/arm/mach-at91rm9200/Kconfig | 6 + arch/arm/mach-at91rm9200/Makefile | 1 + arch/arm/mach-at91rm9200/board-1arm.c | 109 +++ 5 files changed, 1175 insertions(+) create mode 100644 arch/arm/configs/onearm_defconfig create mode 100644 arch/arm/mach-at91rm9200/board-1arm.c diff --git a/arch/arm/boot/compressed/head-at91rm9200.S b/arch/arm/boot/compressed/head-at91rm9200.S index 57a3b163b2c..d68b9acd826 100644 --- a/arch/arm/boot/compressed/head-at91rm9200.S +++ b/arch/arm/boot/compressed/head-at91rm9200.S @@ -61,6 +61,12 @@ cmp r7, r3 beq 99f + @ Ajeco 1ARM : 1075 + mov r3, #(MACH_TYPE_ONEARM & 0xff) + orr r3, r3, #(MACH_TYPE_ONEARM & 0xff00) + cmp r7, r3 + beq 99f + @ Unknown board, use the AT91RM9200DK board @ mov r7, #MACH_TYPE_AT91RM9200 mov r7, #(MACH_TYPE_AT91RM9200DK & 0xff) diff --git a/arch/arm/configs/onearm_defconfig b/arch/arm/configs/onearm_defconfig new file mode 100644 index 00000000000..5401c01caef --- /dev/null +++ b/arch/arm/configs/onearm_defconfig @@ -0,0 +1,1053 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17-git10 +# Mon Jun 26 13:45:44 2006 +# +CONFIG_ARM=y +CONFIG_MMU=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_VECTORS_BASE=0xffff0000 + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +CONFIG_UID16=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_SLAB=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +# CONFIG_BLK_DEV_IO_TRACE is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# System Type +# +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +CONFIG_ARCH_AT91RM9200=y +# CONFIG_ARCH_CLPS7500 is not set +# CONFIG_ARCH_CLPS711X is not set +# CONFIG_ARCH_CO285 is not set +# CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set +# CONFIG_ARCH_FOOTBRIDGE is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_IOP3XX is not set +# CONFIG_ARCH_IXP4XX is not set +# CONFIG_ARCH_IXP2000 is not set +# CONFIG_ARCH_IXP23XX is not set +# CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_PNX4008 is not set +# CONFIG_ARCH_PXA is not set +# CONFIG_ARCH_RPC is not set +# CONFIG_ARCH_SA1100 is not set +# CONFIG_ARCH_S3C2410 is not set +# CONFIG_ARCH_SHARK is not set +# CONFIG_ARCH_LH7A40X is not set +# CONFIG_ARCH_OMAP is not set + +# +# AT91RM9200 Implementations +# + +# +# AT91RM9200 Board Type +# +CONFIG_MACH_ONEARM=y +# CONFIG_ARCH_AT91RM9200DK is not set +# CONFIG_MACH_AT91RM9200EK is not set +# CONFIG_MACH_CSB337 is not set +# CONFIG_MACH_CSB637 is not set +# CONFIG_MACH_CARMEVA is not set +# CONFIG_MACH_KB9200 is not set +# CONFIG_MACH_ATEB9200 is not set +# CONFIG_MACH_KAFA is not set + +# +# AT91RM9200 Feature Selections +# +CONFIG_AT91_PROGRAMMABLE_CLOCKS=y + +# +# Processor Type +# +CONFIG_CPU_32=y +CONFIG_CPU_ARM920T=y +CONFIG_CPU_32v4=y +CONFIG_CPU_ABRT_EV4T=y +CONFIG_CPU_CACHE_V4WT=y +CONFIG_CPU_CACHE_VIVT=y +CONFIG_CPU_COPY_V4WB=y +CONFIG_CPU_TLB_V4WBI=y + +# +# Processor Features +# +# CONFIG_ARM_THUMB is not set +# CONFIG_CPU_ICACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_WRITETHROUGH is not set + +# +# Bus support +# + +# +# PCCARD (PCMCIA/CardBus) support +# +CONFIG_PCCARD=y +# CONFIG_PCMCIA_DEBUG is not set +CONFIG_PCMCIA=y +CONFIG_PCMCIA_LOAD_CIS=y +CONFIG_PCMCIA_IOCTL=y + +# +# PC-card bridges +# +CONFIG_AT91_CF=y + +# +# Kernel Features +# +# CONFIG_PREEMPT is not set +# CONFIG_NO_IDLE_HZ is not set +CONFIG_HZ=100 +# CONFIG_AEABI is not set +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4096 +CONFIG_LEDS=y +CONFIG_LEDS_TIMER=y +# CONFIG_LEDS_CPU is not set +CONFIG_ALIGNMENT_TRAP=y + +# +# Boot options +# +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M" +# CONFIG_XIP_KERNEL is not set + +# +# Floating point emulation +# + +# +# At least one emulation must be selected +# +CONFIG_FPE_NWFPE=y +# CONFIG_FPE_NWFPE_XP is not set +# CONFIG_FPE_FASTFPE is not set + +# +# Userspace binary formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_AOUT is not set +# CONFIG_BINFMT_MISC is not set +# CONFIG_ARTHUR is not set + +# +# Power management options +# +# CONFIG_PM is not set +# CONFIG_APM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +CONFIG_IP_PNP_BOOTP=y +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y +# CONFIG_MTD_AFS_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +CONFIG_MTD_JEDECPROBE=y +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_START=0x0 +CONFIG_MTD_PHYSMAP_LEN=0x0 +CONFIG_MTD_PHYSMAP_BANKWIDTH=0 +# CONFIG_MTD_ARM_INTEGRATOR is not set +# CONFIG_MTD_IMPA7 is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_BLK_DEV_INITRD=y +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +CONFIG_ARM_AT91_ETHER=y +# CONFIG_SMC91X is not set +# CONFIG_DM9000 is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# PCMCIA network device support +# +# CONFIG_NET_PCMCIA is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_AT91=y +CONFIG_SERIAL_AT91_CONSOLE=y +# CONFIG_SERIAL_AT91_TTYAT is not set +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +CONFIG_WATCHDOG=y +CONFIG_WATCHDOG_NOWAYOUT=y + +# +# Watchdog Device Drivers +# +# CONFIG_SOFT_WATCHDOG is not set +CONFIG_AT91_WATCHDOG=y + +# +# USB-based Watchdog Cards +# +# CONFIG_USBPCWATCHDOG is not set +# CONFIG_NVRAM is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set + +# +# Ftape, the floppy tape device driver +# + +# +# PCMCIA character devices +# +# CONFIG_SYNCLINK_CS is not set +# CONFIG_CARDMAN_4000 is not set +# CONFIG_CARDMAN_4040 is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_PCA_ISA is not set + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_ADM1021 is not set +# CONFIG_SENSORS_ADM1025 is not set +# CONFIG_SENSORS_ADM1026 is not set +# CONFIG_SENSORS_ADM1031 is not set +# CONFIG_SENSORS_ADM9240 is not set +# CONFIG_SENSORS_ASB100 is not set +# CONFIG_SENSORS_ATXP1 is not set +# CONFIG_SENSORS_DS1621 is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set +# CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set +# CONFIG_SENSORS_IT87 is not set +# CONFIG_SENSORS_LM63 is not set +# CONFIG_SENSORS_LM75 is not set +# CONFIG_SENSORS_LM77 is not set +# CONFIG_SENSORS_LM78 is not set +# CONFIG_SENSORS_LM80 is not set +# CONFIG_SENSORS_LM83 is not set +# CONFIG_SENSORS_LM85 is not set +# CONFIG_SENSORS_LM87 is not set +# CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set +# CONFIG_SENSORS_MAX1619 is not set +# CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47M192 is not set +# CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_W83781D is not set +# CONFIG_SENSORS_W83791D is not set +# CONFIG_SENSORS_W83792D is not set +# CONFIG_SENSORS_W83L785TS is not set +# CONFIG_SENSORS_W83627HF is not set +# CONFIG_SENSORS_W83627EHF is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set +# CONFIG_USB_DABUSB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +# CONFIG_USB_ARCH_HAS_EHCI is not set +CONFIG_USB=y +CONFIG_USB_DEBUG=y + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# may also be needed; see USB_STORAGE Help for more information +# +# CONFIG_USB_STORAGE is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Input Devices +# +# CONFIG_USB_HID is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_TOUCHSCREEN is not set +# CONFIG_USB_YEALINK is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_ATI_REMOTE2 is not set +# CONFIG_USB_KEYSPAN_REMOTE is not set +# CONFIG_USB_APPLETOUCH is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +CONFIG_USB_GADGET=y +# CONFIG_USB_GADGET_DEBUG_FILES is not set +CONFIG_USB_GADGET_SELECTED=y +# CONFIG_USB_GADGET_NET2280 is not set +# CONFIG_USB_GADGET_PXA2XX is not set +# CONFIG_USB_GADGET_GOKU is not set +# CONFIG_USB_GADGET_LH7A40X is not set +# CONFIG_USB_GADGET_OMAP is not set +CONFIG_USB_GADGET_AT91=y +CONFIG_USB_AT91=y +# CONFIG_USB_GADGET_DUMMY_HCD is not set +# CONFIG_USB_GADGET_DUALSPEED is not set +# CONFIG_USB_ZERO is not set +# CONFIG_USB_ETH is not set +# CONFIG_USB_GADGETFS is not set +# CONFIG_USB_FILE_STORAGE is not set +# CONFIG_USB_G_SERIAL is not set + +# +# MMC/SD Card support +# +CONFIG_MMC=y +# CONFIG_MMC_DEBUG is not set +CONFIG_MMC_BLOCK=y +CONFIG_MMC_AT91RM9200=y + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +# CONFIG_RTC_CLASS is not set + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +# CONFIG_JFFS2_FS is not set +CONFIG_CRAMFS=y +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +CONFIG_NFS_V3_ACL=y +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_ACL_SUPPORT=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_MAGIC_SYSRQ is not set +CONFIG_DEBUG_KERNEL=y +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_BUGVERBOSE=y +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_DEBUG_VM is not set +CONFIG_FRAME_POINTER=y +# CONFIG_UNWIND_INFO is not set +CONFIG_FORCED_INLINING=y +# CONFIG_RCU_TORTURE_TEST is not set +CONFIG_DEBUG_USER=y +# CONFIG_DEBUG_WAITQ is not set +# CONFIG_DEBUG_ERRORS is not set +CONFIG_DEBUG_LL=y +# CONFIG_DEBUG_ICEDCC is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y diff --git a/arch/arm/mach-at91rm9200/Kconfig b/arch/arm/mach-at91rm9200/Kconfig index 1ab5b782831..70d402f76ce 100644 --- a/arch/arm/mach-at91rm9200/Kconfig +++ b/arch/arm/mach-at91rm9200/Kconfig @@ -4,6 +4,12 @@ menu "AT91RM9200 Implementations" comment "AT91RM9200 Board Type" +config MACH_ONEARM + bool "Ajeco 1ARM Single Board Computer" + depends on ARCH_AT91RM9200 + help + Select this if you are using Ajeco's 1ARM Single Board Computer + config ARCH_AT91RM9200DK bool "Atmel AT91RM9200-DK Development board" depends on ARCH_AT91RM9200 diff --git a/arch/arm/mach-at91rm9200/Makefile b/arch/arm/mach-at91rm9200/Makefile index 81ebc6684ad..82db957322d 100644 --- a/arch/arm/mach-at91rm9200/Makefile +++ b/arch/arm/mach-at91rm9200/Makefile @@ -10,6 +10,7 @@ obj- := obj-$(CONFIG_PM) += pm.o # Board-specific support +obj-$(CONFIG_MACH_ONEARM) += board-1arm.o obj-$(CONFIG_ARCH_AT91RM9200DK) += board-dk.o obj-$(CONFIG_MACH_AT91RM9200EK) += board-ek.o obj-$(CONFIG_MACH_CSB337) += board-csb337.o diff --git a/arch/arm/mach-at91rm9200/board-1arm.c b/arch/arm/mach-at91rm9200/board-1arm.c new file mode 100644 index 00000000000..dc79e0992af --- /dev/null +++ b/arch/arm/mach-at91rm9200/board-1arm.c @@ -0,0 +1,109 @@ +/* + * linux/arch/arm/mach-at91rm9200/board-1arm.c + * + * Copyright (C) 2005 SAN People + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include + +#include "generic.h" + +static void __init onearm_init_irq(void) +{ + /* Initialize AIC controller */ + at91rm9200_init_irq(NULL); + + /* Set up the GPIO interrupts */ + at91_gpio_irq_setup(PQFP_GPIO_BANKS); +} + +/* + * Serial port configuration. + * 0 .. 3 = USART0 .. USART3 + * 4 = DBGU + */ +static struct at91_uart_config __initdata onearm_uart_config = { + .console_tty = 0, /* ttyS0 */ + .nr_tty = 3, + .tty_map = { 4, 0, 1, -1, -1 }, /* ttyS0, ..., ttyS4 */ +}; + +static void __init onearm_map_io(void) +{ + at91rm9200_map_io(); + + /* Initialize clocks: 18.432 MHz crystal */ + at91_clock_init(18432000); + + /* Setup the serial ports and console */ + at91_init_serial(&onearm_uart_config); +} + +static struct at91_eth_data __initdata onearm_eth_data = { + .phy_irq_pin = AT91_PIN_PC4, + .is_rmii = 1, +}; + +static struct at91_usbh_data __initdata onearm_usbh_data = { + .ports = 1, +}; + +static struct at91_udc_data __initdata onearm_udc_data = { + .vbus_pin = AT91_PIN_PC2, + .pullup_pin = AT91_PIN_PC3, +}; + +static void __init onearm_board_init(void) +{ + /* Serial */ + at91_add_device_serial(); + /* Ethernet */ + at91_add_device_eth(&onearm_eth_data); + /* USB Host */ + at91_add_device_usbh(&onearm_usbh_data); + /* USB Device */ + at91_add_device_udc(&onearm_udc_data); +} + +MACHINE_START(ONEARM, "Ajeco 1ARM single board computer") + /* Maintainer: Lennert Buytenhek */ + .phys_io = AT91_BASE_SYS, + .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, + .boot_params = AT91_SDRAM_BASE + 0x100, + .timer = &at91rm9200_timer, + .map_io = onearm_map_io, + .init_irq = onearm_init_irq, + .init_machine = onearm_board_init, +MACHINE_END -- cgit v1.2.3 From 2efe55a9cec8418f0e0cde3dc3787a42fddc4411 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Mon, 26 Jun 2006 18:57:34 +0200 Subject: Storage class should be first Storage class should be before const Signed-off-by: Tobias Klauser Signed-off-by: Adrian Bunk --- arch/i386/kernel/machine_kexec.c | 4 ++-- arch/powerpc/kernel/machine_kexec_32.c | 4 ++-- arch/ppc/kernel/machine_kexec.c | 4 ++-- arch/s390/kernel/machine_kexec.c | 4 ++-- arch/sh/kernel/machine_kexec.c | 4 ++-- arch/x86_64/kernel/machine_kexec.c | 4 ++-- 6 files changed, 12 insertions(+), 12 deletions(-) diff --git a/arch/i386/kernel/machine_kexec.c b/arch/i386/kernel/machine_kexec.c index f73d7374a2b..511abe52a94 100644 --- a/arch/i386/kernel/machine_kexec.c +++ b/arch/i386/kernel/machine_kexec.c @@ -133,9 +133,9 @@ typedef asmlinkage NORET_TYPE void (*relocate_new_kernel_t)( unsigned long start_address, unsigned int has_pae) ATTRIB_NORET; -const extern unsigned char relocate_new_kernel[]; +extern const unsigned char relocate_new_kernel[]; extern void relocate_new_kernel_end(void); -const extern unsigned int relocate_new_kernel_size; +extern const unsigned int relocate_new_kernel_size; /* * A architecture hook called to validate the diff --git a/arch/powerpc/kernel/machine_kexec_32.c b/arch/powerpc/kernel/machine_kexec_32.c index 443606134df..cbaa3419679 100644 --- a/arch/powerpc/kernel/machine_kexec_32.c +++ b/arch/powerpc/kernel/machine_kexec_32.c @@ -30,8 +30,8 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)( */ void default_machine_kexec(struct kimage *image) { - const extern unsigned char relocate_new_kernel[]; - const extern unsigned int relocate_new_kernel_size; + extern const unsigned char relocate_new_kernel[]; + extern const unsigned int relocate_new_kernel_size; unsigned long page_list; unsigned long reboot_code_buffer, reboot_code_buffer_phys; relocate_new_kernel_t rnk; diff --git a/arch/ppc/kernel/machine_kexec.c b/arch/ppc/kernel/machine_kexec.c index 84d65a87191..a469ba438cb 100644 --- a/arch/ppc/kernel/machine_kexec.c +++ b/arch/ppc/kernel/machine_kexec.c @@ -25,8 +25,8 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)( unsigned long reboot_code_buffer, unsigned long start_address) ATTRIB_NORET; -const extern unsigned char relocate_new_kernel[]; -const extern unsigned int relocate_new_kernel_size; +extern const unsigned char relocate_new_kernel[]; +extern const unsigned int relocate_new_kernel_size; void machine_shutdown(void) { diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c index bad81b5832d..fbde6a91526 100644 --- a/arch/s390/kernel/machine_kexec.c +++ b/arch/s390/kernel/machine_kexec.c @@ -27,8 +27,8 @@ static void kexec_halt_all_cpus(void *); typedef void (*relocate_kernel_t) (kimage_entry_t *, unsigned long); -const extern unsigned char relocate_kernel[]; -const extern unsigned long long relocate_kernel_len; +extern const unsigned char relocate_kernel[]; +extern const unsigned long long relocate_kernel_len; int machine_kexec_prepare(struct kimage *image) diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 43546525f28..6bcd8d92399 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -25,8 +25,8 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)( unsigned long start_address, unsigned long vbr_reg) ATTRIB_NORET; -const extern unsigned char relocate_new_kernel[]; -const extern unsigned int relocate_new_kernel_size; +extern const unsigned char relocate_new_kernel[]; +extern const unsigned int relocate_new_kernel_size; extern void *gdb_vbr_vector; /* diff --git a/arch/x86_64/kernel/machine_kexec.c b/arch/x86_64/kernel/machine_kexec.c index 25ac8a3faae..83fb24a0282 100644 --- a/arch/x86_64/kernel/machine_kexec.c +++ b/arch/x86_64/kernel/machine_kexec.c @@ -149,8 +149,8 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)(unsigned long indirection_page, unsigned long start_address, unsigned long pgtable) ATTRIB_NORET; -const extern unsigned char relocate_new_kernel[]; -const extern unsigned long relocate_new_kernel_size; +extern const unsigned char relocate_new_kernel[]; +extern const unsigned long relocate_new_kernel_size; int machine_kexec_prepare(struct kimage *image) { -- cgit v1.2.3 From 20c5426f8155a89b6df06325f9b278f5052b8c7e Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 26 Jun 2006 00:24:30 -0700 Subject: [PATCH] fix "USB: move to " Update this driver for recent header file movement. Cc: David Brownell Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/video/usbvideo/quickcam_messenger.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/usbvideo/quickcam_messenger.c b/drivers/media/video/usbvideo/quickcam_messenger.c index 3f3182a24da..56e01b62241 100644 --- a/drivers/media/video/usbvideo/quickcam_messenger.c +++ b/drivers/media/video/usbvideo/quickcam_messenger.c @@ -33,7 +33,7 @@ #include #include #include -#include +#include #include "usbvideo.h" #include "quickcam_messenger.h" -- cgit v1.2.3 From 1fb00c6cbd8356f43b46322742f3c01c2a1f02da Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 26 Jun 2006 00:24:31 -0700 Subject: [PATCH] work around ppc64 bootup bug by making mutex-debugging save/restore irqs It seems ppc64 wants to lock mutexes in early bootup code, with interrupts disabled, and they expect interrupts to stay disabled, else they crash. Work around this bug by making mutex debugging variants save/restore irq flags. Signed-off-by: Ingo Molnar Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/mutex-debug.c | 12 ++++++------ kernel/mutex-debug.h | 25 +++++-------------------- kernel/mutex.c | 21 ++++++++++++--------- kernel/mutex.h | 6 ++++-- 4 files changed, 27 insertions(+), 37 deletions(-) diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c index f4913c37695..036b6285b15 100644 --- a/kernel/mutex-debug.c +++ b/kernel/mutex-debug.c @@ -153,13 +153,13 @@ next: continue; count++; cursor = curr->next; - debug_spin_lock_restore(&debug_mutex_lock, flags); + debug_spin_unlock_restore(&debug_mutex_lock, flags); printk("\n#%03d: ", count); printk_lock(lock, filter ? 0 : 1); goto next; } - debug_spin_lock_restore(&debug_mutex_lock, flags); + debug_spin_unlock_restore(&debug_mutex_lock, flags); printk("\n"); } @@ -316,7 +316,7 @@ void mutex_debug_check_no_locks_held(struct task_struct *task) continue; list_del_init(curr); DEBUG_OFF(); - debug_spin_lock_restore(&debug_mutex_lock, flags); + debug_spin_unlock_restore(&debug_mutex_lock, flags); printk("BUG: %s/%d, lock held at task exit time!\n", task->comm, task->pid); @@ -325,7 +325,7 @@ void mutex_debug_check_no_locks_held(struct task_struct *task) printk("exiting task is not even the owner??\n"); return; } - debug_spin_lock_restore(&debug_mutex_lock, flags); + debug_spin_unlock_restore(&debug_mutex_lock, flags); } /* @@ -352,7 +352,7 @@ void mutex_debug_check_no_locks_freed(const void *from, unsigned long len) continue; list_del_init(curr); DEBUG_OFF(); - debug_spin_lock_restore(&debug_mutex_lock, flags); + debug_spin_unlock_restore(&debug_mutex_lock, flags); printk("BUG: %s/%d, active lock [%p(%p-%p)] freed!\n", current->comm, current->pid, lock, from, to); @@ -362,7 +362,7 @@ void mutex_debug_check_no_locks_freed(const void *from, unsigned long len) printk("freeing task is not even the owner??\n"); return; } - debug_spin_lock_restore(&debug_mutex_lock, flags); + debug_spin_unlock_restore(&debug_mutex_lock, flags); } /* diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h index fd384050acb..a5196c36a5f 100644 --- a/kernel/mutex-debug.h +++ b/kernel/mutex-debug.h @@ -46,21 +46,6 @@ extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter, extern void debug_mutex_unlock(struct mutex *lock); extern void debug_mutex_init(struct mutex *lock, const char *name); -#define debug_spin_lock(lock) \ - do { \ - local_irq_disable(); \ - if (debug_mutex_on) \ - spin_lock(lock); \ - } while (0) - -#define debug_spin_unlock(lock) \ - do { \ - if (debug_mutex_on) \ - spin_unlock(lock); \ - local_irq_enable(); \ - preempt_check_resched(); \ - } while (0) - #define debug_spin_lock_save(lock, flags) \ do { \ local_irq_save(flags); \ @@ -68,7 +53,7 @@ extern void debug_mutex_init(struct mutex *lock, const char *name); spin_lock(lock); \ } while (0) -#define debug_spin_lock_restore(lock, flags) \ +#define debug_spin_unlock_restore(lock, flags) \ do { \ if (debug_mutex_on) \ spin_unlock(lock); \ @@ -76,20 +61,20 @@ extern void debug_mutex_init(struct mutex *lock, const char *name); preempt_check_resched(); \ } while (0) -#define spin_lock_mutex(lock) \ +#define spin_lock_mutex(lock, flags) \ do { \ struct mutex *l = container_of(lock, struct mutex, wait_lock); \ \ DEBUG_WARN_ON(in_interrupt()); \ - debug_spin_lock(&debug_mutex_lock); \ + debug_spin_lock_save(&debug_mutex_lock, flags); \ spin_lock(lock); \ DEBUG_WARN_ON(l->magic != l); \ } while (0) -#define spin_unlock_mutex(lock) \ +#define spin_unlock_mutex(lock, flags) \ do { \ spin_unlock(lock); \ - debug_spin_unlock(&debug_mutex_lock); \ + debug_spin_unlock_restore(&debug_mutex_lock, flags); \ } while (0) #define DEBUG_OFF() \ diff --git a/kernel/mutex.c b/kernel/mutex.c index 5449b210d9e..7043db21bbc 100644 --- a/kernel/mutex.c +++ b/kernel/mutex.c @@ -125,10 +125,11 @@ __mutex_lock_common(struct mutex *lock, long state __IP_DECL__) struct task_struct *task = current; struct mutex_waiter waiter; unsigned int old_val; + unsigned long flags; debug_mutex_init_waiter(&waiter); - spin_lock_mutex(&lock->wait_lock); + spin_lock_mutex(&lock->wait_lock, flags); debug_mutex_add_waiter(lock, &waiter, task->thread_info, ip); @@ -157,7 +158,7 @@ __mutex_lock_common(struct mutex *lock, long state __IP_DECL__) if (unlikely(state == TASK_INTERRUPTIBLE && signal_pending(task))) { mutex_remove_waiter(lock, &waiter, task->thread_info); - spin_unlock_mutex(&lock->wait_lock); + spin_unlock_mutex(&lock->wait_lock, flags); debug_mutex_free_waiter(&waiter); return -EINTR; @@ -165,9 +166,9 @@ __mutex_lock_common(struct mutex *lock, long state __IP_DECL__) __set_task_state(task, state); /* didnt get the lock, go to sleep: */ - spin_unlock_mutex(&lock->wait_lock); + spin_unlock_mutex(&lock->wait_lock, flags); schedule(); - spin_lock_mutex(&lock->wait_lock); + spin_lock_mutex(&lock->wait_lock, flags); } /* got the lock - rejoice! */ @@ -178,7 +179,7 @@ __mutex_lock_common(struct mutex *lock, long state __IP_DECL__) if (likely(list_empty(&lock->wait_list))) atomic_set(&lock->count, 0); - spin_unlock_mutex(&lock->wait_lock); + spin_unlock_mutex(&lock->wait_lock, flags); debug_mutex_free_waiter(&waiter); @@ -203,10 +204,11 @@ static fastcall noinline void __mutex_unlock_slowpath(atomic_t *lock_count __IP_DECL__) { struct mutex *lock = container_of(lock_count, struct mutex, count); + unsigned long flags; DEBUG_WARN_ON(lock->owner != current_thread_info()); - spin_lock_mutex(&lock->wait_lock); + spin_lock_mutex(&lock->wait_lock, flags); /* * some architectures leave the lock unlocked in the fastpath failure @@ -231,7 +233,7 @@ __mutex_unlock_slowpath(atomic_t *lock_count __IP_DECL__) debug_mutex_clear_owner(lock); - spin_unlock_mutex(&lock->wait_lock); + spin_unlock_mutex(&lock->wait_lock, flags); } /* @@ -276,9 +278,10 @@ __mutex_lock_interruptible_slowpath(atomic_t *lock_count __IP_DECL__) static inline int __mutex_trylock_slowpath(atomic_t *lock_count) { struct mutex *lock = container_of(lock_count, struct mutex, count); + unsigned long flags; int prev; - spin_lock_mutex(&lock->wait_lock); + spin_lock_mutex(&lock->wait_lock, flags); prev = atomic_xchg(&lock->count, -1); if (likely(prev == 1)) @@ -287,7 +290,7 @@ static inline int __mutex_trylock_slowpath(atomic_t *lock_count) if (likely(list_empty(&lock->wait_list))) atomic_set(&lock->count, 0); - spin_unlock_mutex(&lock->wait_lock); + spin_unlock_mutex(&lock->wait_lock, flags); return prev == 1; } diff --git a/kernel/mutex.h b/kernel/mutex.h index 00fe84e7b67..06918994725 100644 --- a/kernel/mutex.h +++ b/kernel/mutex.h @@ -9,8 +9,10 @@ * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs: */ -#define spin_lock_mutex(lock) spin_lock(lock) -#define spin_unlock_mutex(lock) spin_unlock(lock) +#define spin_lock_mutex(lock, flags) \ + do { spin_lock(lock); (void)(flags); } while (0) +#define spin_unlock_mutex(lock, flags) \ + do { spin_unlock(lock); (void)(flags); } while (0) #define mutex_remove_waiter(lock, waiter, ti) \ __list_del((waiter)->list.prev, (waiter)->list.next) -- cgit v1.2.3 From 81615b624a45621b758380ec45d750483eae281d Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 26 Jun 2006 00:24:32 -0700 Subject: [PATCH] Convert kernel/cpu.c to mutexes Convert kernel/cpu.c from semaphore to mutex. I've reviewed all lock_cpu_hotplug() critical sections, and they all seem to fit mutex semantics. Signed-off-by: Ingo Molnar Cc: Rusty Russell Cc: Ashok Raj Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/cpu.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/kernel/cpu.c b/kernel/cpu.c index fe2b8d0bfe4..03dcd981846 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -13,10 +13,10 @@ #include #include #include -#include +#include /* This protects CPUs going up and down... */ -static DECLARE_MUTEX(cpucontrol); +static DEFINE_MUTEX(cpucontrol); static BLOCKING_NOTIFIER_HEAD(cpu_chain); @@ -30,9 +30,9 @@ static int __lock_cpu_hotplug(int interruptible) if (lock_cpu_hotplug_owner != current) { if (interruptible) - ret = down_interruptible(&cpucontrol); + ret = mutex_lock_interruptible(&cpucontrol); else - down(&cpucontrol); + mutex_lock(&cpucontrol); } /* @@ -56,7 +56,7 @@ void unlock_cpu_hotplug(void) { if (--lock_cpu_hotplug_depth == 0) { lock_cpu_hotplug_owner = NULL; - up(&cpucontrol); + mutex_unlock(&cpucontrol); } } EXPORT_SYMBOL_GPL(unlock_cpu_hotplug); -- cgit v1.2.3 From 57136ca6d57359c7f21a9bbb4a5a0a61eeb53f2b Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Mon, 26 Jun 2006 00:24:33 -0700 Subject: [PATCH] Bluetooth: fix potential NULL ptr deref in dtl1_cs.c::dtl1_hci_send_frame() There's a problem in drivers/bluetooth/dtl1_cs.c::dtl1_hci_send_frame() If bt_skb_alloc() returns NULL, then skb_reserve(s, NSHL); will cause a NULL pointer deref - ouch. If we can't allocate the resources we require we need to tell the caller by returning -ENOMEM. Found by the coverity checker as bug #409 Signed-off-by: Jesper Juhl Acked-by: Marcel Holtmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/bluetooth/dtl1_cs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c index a71a240611e..ed8dca84ff6 100644 --- a/drivers/bluetooth/dtl1_cs.c +++ b/drivers/bluetooth/dtl1_cs.c @@ -423,6 +423,9 @@ static int dtl1_hci_send_frame(struct sk_buff *skb) nsh.len = skb->len; s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC); + if (!s) + return -ENOMEM; + skb_reserve(s, NSHL); memcpy(skb_put(s, skb->len), skb->data, skb->len); if (skb->len & 0x0001) -- cgit v1.2.3 From 0c6856f702732d3cfc33eb59303e998ad6961de8 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Mon, 26 Jun 2006 00:24:34 -0700 Subject: [PATCH] oprofile: Fix unnecessary cleverness nmi_create_files() in arch/i386/oprofile/nmi_int.c depends on model->num_counters (number of performance counters) being less than 10. While this is currently the case, it's too clever by half. Other archs aren't quite as clever: they assume 100. I suggest to normalize them all to 1000. Cc: Philippe Elie Cc: John Levon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/oprofile/common.c | 2 +- arch/i386/oprofile/nmi_int.c | 4 ++-- arch/mips/oprofile/common.c | 2 +- arch/powerpc/oprofile/common.c | 2 +- arch/sh/oprofile/op_model_sh7750.c | 2 +- 5 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/alpha/oprofile/common.c b/arch/alpha/oprofile/common.c index ba788cfdc3c..9fc0eeb4f0a 100644 --- a/arch/alpha/oprofile/common.c +++ b/arch/alpha/oprofile/common.c @@ -112,7 +112,7 @@ op_axp_create_files(struct super_block * sb, struct dentry * root) for (i = 0; i < model->num_counters; ++i) { struct dentry *dir; - char buf[3]; + char buf[4]; snprintf(buf, sizeof buf, "%d", i); dir = oprofilefs_mkdir(sb, root, buf); diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c index ec0fd3cfa77..fa8a37bcb39 100644 --- a/arch/i386/oprofile/nmi_int.c +++ b/arch/i386/oprofile/nmi_int.c @@ -281,9 +281,9 @@ static int nmi_create_files(struct super_block * sb, struct dentry * root) for (i = 0; i < model->num_counters; ++i) { struct dentry * dir; - char buf[2]; + char buf[4]; - snprintf(buf, 2, "%d", i); + snprintf(buf, sizeof(buf), "%d", i); dir = oprofilefs_mkdir(sb, root, buf); oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled); oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event); diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index c31e4cff64e..65eb55400d7 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -38,7 +38,7 @@ static int op_mips_create_files(struct super_block * sb, struct dentry * root) for (i = 0; i < model->num_counters; ++i) { struct dentry *dir; - char buf[3]; + char buf[4]; snprintf(buf, sizeof buf, "%d", i); dir = oprofilefs_mkdir(sb, root, buf); diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c index 27ad56bd227..fd0bbbe7a4d 100644 --- a/arch/powerpc/oprofile/common.c +++ b/arch/powerpc/oprofile/common.c @@ -94,7 +94,7 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root) for (i = 0; i < model->num_counters; ++i) { struct dentry *dir; - char buf[3]; + char buf[4]; snprintf(buf, sizeof buf, "%d", i); dir = oprofilefs_mkdir(sb, root, buf); diff --git a/arch/sh/oprofile/op_model_sh7750.c b/arch/sh/oprofile/op_model_sh7750.c index 5ec9ddcc4b0..c265185b22a 100644 --- a/arch/sh/oprofile/op_model_sh7750.c +++ b/arch/sh/oprofile/op_model_sh7750.c @@ -198,7 +198,7 @@ static int sh7750_perf_counter_create_files(struct super_block *sb, struct dentr for (i = 0; i < NR_CNTRS; i++) { struct dentry *dir; - char buf[3]; + char buf[4]; snprintf(buf, sizeof(buf), "%d", i); dir = oprofilefs_mkdir(sb, root, buf); -- cgit v1.2.3 From d2be8ee53856c3c510d4d38f534979747db65d96 Mon Sep 17 00:00:00 2001 From: Fredrik Roubert Date: Mon, 26 Jun 2006 00:24:35 -0700 Subject: [PATCH] fix magic sysrq on strange keyboards Magic sysrq fails to work on many keyboards, particulary most of notebook keyboards. This patch fixes it. The idea is quite simple: Discard the SysRq break code if Alt is still being held down. This way the broken keyboard can send the break code (or the user with a normal keyboard can release the SysRq key) and the kernel waits until the next key is pressed or the Alt key is released. Signed-off-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/keyboard.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c index edd996f6fb8..13e3126c1de 100644 --- a/drivers/char/keyboard.c +++ b/drivers/char/keyboard.c @@ -151,6 +151,7 @@ unsigned char kbd_sysrq_xlate[KEY_MAX + 1] = "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ "\r\000/"; /* 0x60 - 0x6f */ static int sysrq_down; +static int sysrq_alt_use; #endif static int sysrq_alt; @@ -1143,7 +1144,7 @@ static void kbd_keycode(unsigned int keycode, int down, kbd = kbd_table + fg_console; if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) - sysrq_alt = down; + sysrq_alt = down ? keycode : 0; #ifdef CONFIG_SPARC if (keycode == KEY_STOP) sparc_l1_a_state = down; @@ -1163,9 +1164,14 @@ static void kbd_keycode(unsigned int keycode, int down, #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { - sysrq_down = down; + if (!sysrq_down) { + sysrq_down = down; + sysrq_alt_use = sysrq_alt; + } return; } + if (sysrq_down && !down && keycode == sysrq_alt_use) + sysrq_down = 0; if (sysrq_down && down && !rep) { handle_sysrq(kbd_sysrq_xlate[keycode], regs, tty); return; -- cgit v1.2.3 From 38e13929c391e6964b00840b765ed601a3377d33 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 26 Jun 2006 00:24:36 -0700 Subject: [PATCH] Correct tty doc This method died some time ago, so kill the doc for it. Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/tty.txt | 7 ------- 1 file changed, 7 deletions(-) diff --git a/Documentation/tty.txt b/Documentation/tty.txt index 8ff7bc2a081..dab56604745 100644 --- a/Documentation/tty.txt +++ b/Documentation/tty.txt @@ -80,13 +80,6 @@ receive_buf() - Hand buffers of bytes from the driver to the ldisc for processing. Semantics currently rather mysterious 8( -receive_room() - Can be called by the driver layer at any time when - the ldisc is opened. The ldisc must be able to - handle the reported amount of data at that instant. - Synchronization between active receive_buf and - receive_room calls is down to the driver not the - ldisc. Must not sleep. - write_wakeup() - May be called at any point between open and close. The TTY_DO_WRITE_WAKEUP flag indicates if a call is needed but always races versus calls. Thus the -- cgit v1.2.3 From 8e13059a37252c45ab7173a0e4bac05e4a444ab6 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 26 Jun 2006 00:24:37 -0700 Subject: [PATCH] use list_add_tail() instead of list_add() This patch converts list_add(A, B.prev) to list_add_tail(A, &B) for readability. Acked-by: Karsten Keil Cc: Jan Harkes Acked-by: Jan Kara AOLed-by: David Woodhouse Cc: Sridhar Samudrala Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/coda/psdev.c | 2 +- fs/coda/upcall.c | 2 +- fs/dcache.c | 2 +- fs/dquot.c | 4 ++-- 4 files changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c index 6c6771db36d..7caee8d8ea3 100644 --- a/fs/coda/psdev.c +++ b/fs/coda/psdev.c @@ -259,7 +259,7 @@ static ssize_t coda_psdev_read(struct file * file, char __user * buf, /* If request was not a signal, enqueue and don't free */ if (!(req->uc_flags & REQ_ASYNC)) { req->uc_flags |= REQ_READ; - list_add(&(req->uc_chain), vcp->vc_processing.prev); + list_add_tail(&(req->uc_chain), &vcp->vc_processing); goto out; } diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c index b040eba13a7..a5b5e631ba6 100644 --- a/fs/coda/upcall.c +++ b/fs/coda/upcall.c @@ -725,7 +725,7 @@ static int coda_upcall(struct coda_sb_info *sbi, ((union inputArgs *)buffer)->ih.unique = req->uc_unique; /* Append msg to pending queue and poke Venus. */ - list_add(&(req->uc_chain), vcommp->vc_pending.prev); + list_add_tail(&(req->uc_chain), &vcommp->vc_pending); wake_up_interruptible(&vcommp->vc_waitq); /* We can be interrupted while we wait for Venus to process diff --git a/fs/dcache.c b/fs/dcache.c index b85fda36053..6aa635fbfa0 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -638,7 +638,7 @@ resume: * of the unused list for prune_dcache */ if (!atomic_read(&dentry->d_count)) { - list_add(&dentry->d_lru, dentry_unused.prev); + list_add_tail(&dentry->d_lru, &dentry_unused); dentry_stat.nr_unused++; found++; } diff --git a/fs/dquot.c b/fs/dquot.c index 81d87a413c6..0122a279106 100644 --- a/fs/dquot.c +++ b/fs/dquot.c @@ -250,7 +250,7 @@ static inline struct dquot *find_dquot(unsigned int hashent, struct super_block /* Add a dquot to the tail of the free list */ static inline void put_dquot_last(struct dquot *dquot) { - list_add(&dquot->dq_free, free_dquots.prev); + list_add_tail(&dquot->dq_free, &free_dquots); dqstats.free_dquots++; } @@ -266,7 +266,7 @@ static inline void put_inuse(struct dquot *dquot) { /* We add to the back of inuse list so we don't have to restart * when traversing this list and we block */ - list_add(&dquot->dq_inuse, inuse_list.prev); + list_add_tail(&dquot->dq_inuse, &inuse_list); dqstats.allocated_dquots++; } -- cgit v1.2.3 From a7addcea6ac7c0e9733a48cda06ca0880f116a48 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 26 Jun 2006 00:24:39 -0700 Subject: [PATCH] arch: use list_move() This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B) under arch/. Cc: Geert Uytterhoeven Cc: "David S. Miller" Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/pci/pcbios.c | 6 ++---- arch/m68k/mm/memory.c | 6 ++---- arch/m68k/sun3/sun3dvma.c | 6 ++---- 3 files changed, 6 insertions(+), 12 deletions(-) diff --git a/arch/i386/pci/pcbios.c b/arch/i386/pci/pcbios.c index 1eec0868f4b..ed1512a175a 100644 --- a/arch/i386/pci/pcbios.c +++ b/arch/i386/pci/pcbios.c @@ -371,8 +371,7 @@ void __devinit pcibios_sort(void) list_for_each(ln, &pci_devices) { d = pci_dev_g(ln); if (d->bus->number == bus && d->devfn == devfn) { - list_del(&d->global_list); - list_add_tail(&d->global_list, &sorted_devices); + list_move_tail(&d->global_list, &sorted_devices); if (d == dev) found = 1; break; @@ -390,8 +389,7 @@ void __devinit pcibios_sort(void) if (!found) { printk(KERN_WARNING "PCI: Device %s not found by BIOS\n", pci_name(dev)); - list_del(&dev->global_list); - list_add_tail(&dev->global_list, &sorted_devices); + list_move_tail(&dev->global_list, &sorted_devices); } } list_splice(&sorted_devices, &pci_devices); diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c index d6d582a5abb..a226668f20c 100644 --- a/arch/m68k/mm/memory.c +++ b/arch/m68k/mm/memory.c @@ -94,8 +94,7 @@ pmd_t *get_pointer_table (void) PD_MARKBITS(dp) = mask & ~tmp; if (!PD_MARKBITS(dp)) { /* move to end of list */ - list_del(dp); - list_add_tail(dp, &ptable_list); + list_move_tail(dp, &ptable_list); } return (pmd_t *) (page_address(PD_PAGE(dp)) + off); } @@ -123,8 +122,7 @@ int free_pointer_table (pmd_t *ptable) * move this descriptor to the front of the list, since * it has one or more free tables. */ - list_del(dp); - list_add(dp, &ptable_list); + list_move(dp, &ptable_list); } return 0; } diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c index f04a1d25f1a..97c7bfde8ae 100644 --- a/arch/m68k/sun3/sun3dvma.c +++ b/arch/m68k/sun3/sun3dvma.c @@ -119,8 +119,7 @@ static inline int refill(void) if(hole->end == prev->start) { hole->size += prev->size; hole->end = prev->end; - list_del(&(prev->list)); - list_add(&(prev->list), &hole_cache); + list_move(&(prev->list), &hole_cache); ret++; } @@ -182,8 +181,7 @@ static inline unsigned long get_baddr(int len, unsigned long align) #endif return hole->end; } else if(hole->size == newlen) { - list_del(&(hole->list)); - list_add(&(hole->list), &hole_cache); + list_move(&(hole->list), &hole_cache); dvma_entry_use(hole->start) = newlen; #ifdef DVMA_DEBUG dvma_allocs++; -- cgit v1.2.3 From 1bfba4e8ea0e555e3a0296051517d96253660ccc Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 26 Jun 2006 00:24:40 -0700 Subject: [PATCH] core: use list_move() This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B). Cc: Greg Kroah-Hartman Cc: Ram Pai Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/base/power/resume.c | 6 ++---- drivers/base/power/suspend.c | 13 +++++-------- fs/dcache.c | 3 +-- fs/libfs.c | 10 ++++------ fs/namespace.c | 6 ++---- fs/pnode.c | 9 +++------ fs/sysfs/dir.c | 10 ++++------ mm/swap.c | 3 +-- 8 files changed, 22 insertions(+), 38 deletions(-) diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c index 520679ce53a..826093ef4c7 100644 --- a/drivers/base/power/resume.c +++ b/drivers/base/power/resume.c @@ -53,8 +53,7 @@ void dpm_resume(void) struct device * dev = to_device(entry); get_device(dev); - list_del_init(entry); - list_add_tail(entry, &dpm_active); + list_move_tail(entry, &dpm_active); up(&dpm_list_sem); if (!dev->power.prev_state.event) @@ -101,8 +100,7 @@ void dpm_power_up(void) struct device * dev = to_device(entry); get_device(dev); - list_del_init(entry); - list_add_tail(entry, &dpm_active); + list_move_tail(entry, &dpm_active); resume_device(dev); put_device(dev); } diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index 1a1fe43a305..69509e02f70 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c @@ -116,12 +116,10 @@ int device_suspend(pm_message_t state) /* Check if the device got removed */ if (!list_empty(&dev->power.entry)) { /* Move it to the dpm_off or dpm_off_irq list */ - if (!error) { - list_del(&dev->power.entry); - list_add(&dev->power.entry, &dpm_off); - } else if (error == -EAGAIN) { - list_del(&dev->power.entry); - list_add(&dev->power.entry, &dpm_off_irq); + if (!error) + list_move(&dev->power.entry, &dpm_off); + else if (error == -EAGAIN) { + list_move(&dev->power.entry, &dpm_off_irq); error = 0; } } @@ -139,8 +137,7 @@ int device_suspend(pm_message_t state) */ while (!list_empty(&dpm_off_irq)) { struct list_head * entry = dpm_off_irq.next; - list_del(entry); - list_add(entry, &dpm_off); + list_move(entry, &dpm_off); } dpm_resume(); } diff --git a/fs/dcache.c b/fs/dcache.c index 6aa635fbfa0..48b44a714b3 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -522,8 +522,7 @@ void shrink_dcache_sb(struct super_block * sb) dentry = list_entry(tmp, struct dentry, d_lru); if (dentry->d_sb != sb) continue; - list_del(tmp); - list_add(tmp, &dentry_unused); + list_move(tmp, &dentry_unused); } /* diff --git a/fs/libfs.c b/fs/libfs.c index fc785d8befb..ac02ea602c3 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -149,10 +149,9 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) /* fallthrough */ default: spin_lock(&dcache_lock); - if (filp->f_pos == 2) { - list_del(q); - list_add(q, &dentry->d_subdirs); - } + if (filp->f_pos == 2) + list_move(q, &dentry->d_subdirs); + for (p=q->next; p != &dentry->d_subdirs; p=p->next) { struct dentry *next; next = list_entry(p, struct dentry, d_u.d_child); @@ -164,8 +163,7 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) return 0; spin_lock(&dcache_lock); /* next is still alive */ - list_del(q); - list_add(q, p); + list_move(q, p); p = q; filp->f_pos++; } diff --git a/fs/namespace.c b/fs/namespace.c index 866430bb024..b3ed212ea41 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -526,10 +526,8 @@ void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill) { struct vfsmount *p; - for (p = mnt; p; p = next_mnt(p, mnt)) { - list_del(&p->mnt_hash); - list_add(&p->mnt_hash, kill); - } + for (p = mnt; p; p = next_mnt(p, mnt)) + list_move(&p->mnt_hash, kill); if (propagate) propagate_umount(kill); diff --git a/fs/pnode.c b/fs/pnode.c index 37b568ed0e0..da42ee61c1d 100644 --- a/fs/pnode.c +++ b/fs/pnode.c @@ -53,8 +53,7 @@ static int do_make_slave(struct vfsmount *mnt) if (master) { list_for_each_entry(slave_mnt, &mnt->mnt_slave_list, mnt_slave) slave_mnt->mnt_master = master; - list_del(&mnt->mnt_slave); - list_add(&mnt->mnt_slave, &master->mnt_slave_list); + list_move(&mnt->mnt_slave, &master->mnt_slave_list); list_splice(&mnt->mnt_slave_list, master->mnt_slave_list.prev); INIT_LIST_HEAD(&mnt->mnt_slave_list); } else { @@ -283,10 +282,8 @@ static void __propagate_umount(struct vfsmount *mnt) * umount the child only if the child has no * other children */ - if (child && list_empty(&child->mnt_mounts)) { - list_del(&child->mnt_hash); - list_add_tail(&child->mnt_hash, &mnt->mnt_hash); - } + if (child && list_empty(&child->mnt_mounts)) + list_move_tail(&child->mnt_hash, &mnt->mnt_hash); } } diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 610b5bdbe75..61c42430cba 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -430,10 +430,9 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir) i++; /* fallthrough */ default: - if (filp->f_pos == 2) { - list_del(q); - list_add(q, &parent_sd->s_children); - } + if (filp->f_pos == 2) + list_move(q, &parent_sd->s_children); + for (p=q->next; p!= &parent_sd->s_children; p=p->next) { struct sysfs_dirent *next; const char * name; @@ -455,8 +454,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir) dt_type(next)) < 0) return 0; - list_del(q); - list_add(q, p); + list_move(q, p); p = q; filp->f_pos++; } diff --git a/mm/swap.c b/mm/swap.c index 03ae2076f92..990868afc1c 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -86,8 +86,7 @@ int rotate_reclaimable_page(struct page *page) zone = page_zone(page); spin_lock_irqsave(&zone->lru_lock, flags); if (PageLRU(page) && !PageActive(page)) { - list_del(&page->lru); - list_add_tail(&page->lru, &zone->inactive_list); + list_move_tail(&page->lru, &zone->inactive_list); inc_page_state(pgrotated); } if (!test_clear_page_writeback(page)) -- cgit v1.2.3 From a842ef297fd91b1b93f2aa5898d2efd19e95f6a5 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 26 Jun 2006 00:24:40 -0700 Subject: [PATCH] net/rxrpc: use list_move() This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B) under net/rxrpc. Acked-by: David Howells Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- net/rxrpc/call.c | 3 +-- net/rxrpc/connection.c | 3 +-- net/rxrpc/krxsecd.c | 3 +-- 3 files changed, 3 insertions(+), 6 deletions(-) diff --git a/net/rxrpc/call.c b/net/rxrpc/call.c index c4aeb7d4026..d07122b57e0 100644 --- a/net/rxrpc/call.c +++ b/net/rxrpc/call.c @@ -1098,8 +1098,7 @@ static void rxrpc_call_receive_data_packet(struct rxrpc_call *call, call->app_ready_seq = pmsg->seq; call->app_ready_qty += pmsg->dsize; - list_del_init(&pmsg->link); - list_add_tail(&pmsg->link, &call->app_readyq); + list_move_tail(&pmsg->link, &call->app_readyq); } /* see if we've got the last packet yet */ diff --git a/net/rxrpc/connection.c b/net/rxrpc/connection.c index 0e0a4553499..573b572f8f9 100644 --- a/net/rxrpc/connection.c +++ b/net/rxrpc/connection.c @@ -402,8 +402,7 @@ void rxrpc_put_connection(struct rxrpc_connection *conn) /* move to graveyard queue */ _debug("burying connection: {%08x}", ntohl(conn->conn_id)); - list_del(&conn->link); - list_add_tail(&conn->link, &peer->conn_graveyard); + list_move_tail(&conn->link, &peer->conn_graveyard); rxrpc_krxtimod_add_timer(&conn->timeout, rxrpc_conn_timeout * HZ); diff --git a/net/rxrpc/krxsecd.c b/net/rxrpc/krxsecd.c index 1aadd026d35..cea4eb5e249 100644 --- a/net/rxrpc/krxsecd.c +++ b/net/rxrpc/krxsecd.c @@ -160,8 +160,7 @@ void rxrpc_krxsecd_clear_transport(struct rxrpc_transport *trans) list_for_each_safe(_p, _n, &rxrpc_krxsecd_initmsgq) { msg = list_entry(_p, struct rxrpc_message, link); if (msg->trans == trans) { - list_del(&msg->link); - list_add_tail(&msg->link, &tmp); + list_move_tail(&msg->link, &tmp); atomic_dec(&rxrpc_krxsecd_qcount); } } -- cgit v1.2.3 From 179e09172ab663b8587ecc46bb18a56a770304a9 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 26 Jun 2006 00:24:41 -0700 Subject: [PATCH] drivers: use list_move() This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B) under drivers/. Acked-by: Corey Minyard Cc: Ben Collins Acked-by: Roland Dreier Cc: Alasdair Kergon Cc: Gerd Knorr Cc: Paul Mackerras Cc: Frank Pavlic Acked-by: Matthew Wilcox Cc: Andrew Vasquez Cc: Mikael Starvik Cc: Greg Kroah-Hartman Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_msghandler.c | 7 ++----- drivers/ieee1394/eth1394.c | 3 +-- drivers/ieee1394/raw1394.c | 3 +-- drivers/infiniband/core/mad.c | 9 +++------ drivers/infiniband/core/mad_rmpp.c | 3 +-- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 6 ++---- drivers/md/dm-raid1.c | 6 ++---- drivers/media/video/cx88/cx88-video.c | 6 ++---- drivers/net/ppp_generic.c | 3 +-- drivers/s390/net/lcs.c | 7 +++---- drivers/scsi/ncr53c8xx.c | 3 +-- drivers/scsi/qla2xxx/qla_init.c | 3 +-- drivers/usb/host/hc_crisv10.c | 3 +-- drivers/usb/serial/whiteheat.c | 19 +++++++------------ 14 files changed, 28 insertions(+), 53 deletions(-) diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 9f2f8fdec69..23028559dbc 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -936,11 +936,8 @@ int ipmi_set_gets_events(ipmi_user_t user, int val) if (val) { /* Deliver any queued events. */ - list_for_each_entry_safe(msg, msg2, &intf->waiting_events, - link) { - list_del(&msg->link); - list_add_tail(&msg->link, &msgs); - } + list_for_each_entry_safe(msg, msg2, &intf->waiting_events, link) + list_move_tail(&msg->link, &msgs); intf->waiting_events_count = 0; } diff --git a/drivers/ieee1394/eth1394.c b/drivers/ieee1394/eth1394.c index 5bda15904a0..2d5b57be98c 100644 --- a/drivers/ieee1394/eth1394.c +++ b/drivers/ieee1394/eth1394.c @@ -1074,8 +1074,7 @@ static inline int update_partial_datagram(struct list_head *pdgl, struct list_he /* Move list entry to beginnig of list so that oldest partial * datagrams percolate to the end of the list */ - list_del(lh); - list_add(lh, pdgl); + list_move(lh, pdgl); return 0; } diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index 20ce539580f..571ea68c0cf 100644 --- a/drivers/ieee1394/raw1394.c +++ b/drivers/ieee1394/raw1394.c @@ -132,8 +132,7 @@ static void free_pending_request(struct pending_request *req) static void __queue_complete_req(struct pending_request *req) { struct file_info *fi = req->file_info; - list_del(&req->list); - list_add_tail(&req->list, &fi->req_complete); + list_move_tail(&req->list, &fi->req_complete); up(&fi->complete_sem); wake_up_interruptible(&fi->poll_wait_complete); diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index b38e02a5db3..5ed4dab52a6 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1775,11 +1775,9 @@ ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv, void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr) { mad_send_wr->timeout = 0; - if (mad_send_wr->refcount == 1) { - list_del(&mad_send_wr->agent_list); - list_add_tail(&mad_send_wr->agent_list, + if (mad_send_wr->refcount == 1) + list_move_tail(&mad_send_wr->agent_list, &mad_send_wr->mad_agent_priv->done_list); - } } static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, @@ -2098,8 +2096,7 @@ retry: queued_send_wr = container_of(mad_list, struct ib_mad_send_wr_private, mad_list); - list_del(&mad_list->list); - list_add_tail(&mad_list->list, &send_queue->list); + list_move_tail(&mad_list->list, &send_queue->list); } spin_unlock_irqrestore(&send_queue->lock, flags); diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c index d4704e054e3..ebcd5b18177 100644 --- a/drivers/infiniband/core/mad_rmpp.c +++ b/drivers/infiniband/core/mad_rmpp.c @@ -665,8 +665,7 @@ static void process_rmpp_ack(struct ib_mad_agent_private *agent, goto out; mad_send_wr->refcount++; - list_del(&mad_send_wr->agent_list); - list_add_tail(&mad_send_wr->agent_list, + list_move_tail(&mad_send_wr->agent_list, &mad_send_wr->mad_agent_priv->send_list); } out: diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 216471fa01c..ab40488182b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -864,8 +864,7 @@ void ipoib_mcast_restart_task(void *dev_ptr) if (mcast) { /* Destroy the send only entry */ - list_del(&mcast->list); - list_add_tail(&mcast->list, &remove_list); + list_move_tail(&mcast->list, &remove_list); rb_replace_node(&mcast->rb_node, &nmcast->rb_node, @@ -890,8 +889,7 @@ void ipoib_mcast_restart_task(void *dev_ptr) rb_erase(&mcast->rb_node, &priv->multicast_tree); /* Move to the remove list */ - list_del(&mcast->list); - list_add_tail(&mcast->list, &remove_list); + list_move_tail(&mcast->list, &remove_list); } } diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index d12cf3e5e07..4ad269e6652 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -458,11 +458,9 @@ static int __rh_recovery_prepare(struct region_hash *rh) /* Already quiesced ? */ if (atomic_read(®->pending)) list_del_init(®->list); + else + list_move(®->list, &rh->quiesced_regions); - else { - list_del_init(®->list); - list_add(®->list, &rh->quiesced_regions); - } spin_unlock_irq(&rh->region_lock); return 1; diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 694d1d80ff3..dcda5291b99 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -494,8 +494,7 @@ static int restart_video_queue(struct cx8800_dev *dev, return 0; buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue); if (NULL == prev) { - list_del(&buf->vb.queue); - list_add_tail(&buf->vb.queue,&q->active); + list_move_tail(&buf->vb.queue, &q->active); start_video_dma(dev, q, buf); buf->vb.state = STATE_ACTIVE; buf->count = q->count++; @@ -506,8 +505,7 @@ static int restart_video_queue(struct cx8800_dev *dev, } else if (prev->vb.width == buf->vb.width && prev->vb.height == buf->vb.height && prev->fmt == buf->fmt) { - list_del(&buf->vb.queue); - list_add_tail(&buf->vb.queue,&q->active); + list_move_tail(&buf->vb.queue, &q->active); buf->vb.state = STATE_ACTIVE; buf->count = q->count++; prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 01cd8ec751e..d643a097faa 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -2578,8 +2578,7 @@ ppp_find_channel(int unit) list_for_each_entry(pch, &new_channels, list) { if (pch->file.index == unit) { - list_del(&pch->list); - list_add(&pch->list, &all_channels); + list_move(&pch->list, &all_channels); return pch; } } diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index f94419b334f..2eded55ae88 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -1140,10 +1140,9 @@ list_modified: } } /* re-insert all entries from the failed_list into ipm_list */ - list_for_each_entry_safe(ipm, tmp, &failed_list, list) { - list_del_init(&ipm->list); - list_add_tail(&ipm->list, &card->ipm_list); - } + list_for_each_entry_safe(ipm, tmp, &failed_list, list) + list_move_tail(&ipm->list, &card->ipm_list); + spin_unlock_irqrestore(&card->ipm_lock, flags); } diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c index 6ab035590ee..b28712df0b7 100644 --- a/drivers/scsi/ncr53c8xx.c +++ b/drivers/scsi/ncr53c8xx.c @@ -5118,8 +5118,7 @@ static void ncr_ccb_skipped(struct ncb *np, struct ccb *cp) cp->host_status &= ~HS_SKIPMASK; cp->start.schedule.l_paddr = cpu_to_scr(NCB_SCRIPT_PHYS (np, select)); - list_del(&cp->link_ccbq); - list_add_tail(&cp->link_ccbq, &lp->skip_ccbq); + list_move_tail(&cp->link_ccbq, &lp->skip_ccbq); if (cp->queued) { --lp->queuedccbs; } diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index aef093db597..3d4487eac9b 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2258,8 +2258,7 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) } /* Remove device from the new list and add it to DB */ - list_del(&fcport->list); - list_add_tail(&fcport->list, &ha->fcports); + list_move_tail(&fcport->list, &ha->fcports); /* Login and update database */ qla2x00_fabric_dev_login(ha, fcport, &next_loopid); diff --git a/drivers/usb/host/hc_crisv10.c b/drivers/usb/host/hc_crisv10.c index 2fe7fd19437..4a22909518f 100644 --- a/drivers/usb/host/hc_crisv10.c +++ b/drivers/usb/host/hc_crisv10.c @@ -411,8 +411,7 @@ static inline void urb_list_move_last(struct urb *urb, int epid) urb_entry_t *urb_entry = __urb_list_entry(urb, epid); assert(urb_entry); - list_del(&urb_entry->list); - list_add_tail(&urb_entry->list, &urb_list[epid]); + list_move_tail(&urb_entry->list, &urb_list[epid]); } /* Get the next urb in the list. */ diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 5b06fa36609..56ffc81302f 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -686,19 +686,16 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp) wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; usb_kill_urb(urb); - list_del(tmp); - list_add(tmp, &info->rx_urbs_free); - } - list_for_each_safe(tmp, tmp2, &info->rx_urb_q) { - list_del(tmp); - list_add(tmp, &info->rx_urbs_free); + list_move(tmp, &info->rx_urbs_free); } + list_for_each_safe(tmp, tmp2, &info->rx_urb_q) + list_move(tmp, &info->rx_urbs_free); + list_for_each_safe(tmp, tmp2, &info->tx_urbs_submitted) { wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; usb_kill_urb(urb); - list_del(tmp); - list_add(tmp, &info->tx_urbs_free); + list_move(tmp, &info->tx_urbs_free); } spin_unlock_irqrestore(&info->lock, flags); @@ -1080,8 +1077,7 @@ static void whiteheat_write_callback(struct urb *urb, struct pt_regs *regs) err("%s - Not my urb!", __FUNCTION__); return; } - list_del(&wrap->list); - list_add(&wrap->list, &info->tx_urbs_free); + list_move(&wrap->list, &info->tx_urbs_free); spin_unlock(&info->lock); if (urb->status) { @@ -1371,8 +1367,7 @@ static int start_port_read(struct usb_serial_port *port) wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; usb_kill_urb(urb); - list_del(tmp); - list_add(tmp, &info->rx_urbs_free); + list_move(tmp, &info->rx_urbs_free); } break; } -- cgit v1.2.3 From f116629d03655adaf7832b93b03c99391d09d4a7 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 26 Jun 2006 00:24:46 -0700 Subject: [PATCH] fs: use list_move() This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B) under fs/. Cc: Ian Kent Acked-by: Joel Becker Cc: Neil Brown Cc: Hans Reiser Cc: Urban Widmark Acked-by: David Howells Acked-by: Mark Fasheh Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/afs/cell.c | 3 +-- fs/afs/kafsasyncd.c | 9 +++------ fs/afs/server.c | 6 ++---- fs/afs/vlocation.c | 6 ++---- fs/afs/vnode.c | 3 +-- fs/autofs4/expire.c | 3 +-- fs/configfs/dir.c | 6 ++---- fs/jffs2/erase.c | 15 +++++---------- fs/jffs2/nodemgmt.c | 3 +-- fs/jffs2/wbuf.c | 3 +-- fs/nfsd/nfs4state.c | 3 +-- fs/nfsd/nfscache.c | 3 +-- fs/ocfs2/dlm/dlmast.c | 3 +-- fs/ocfs2/dlm/dlmconvert.c | 9 +++------ fs/ocfs2/dlm/dlmlock.c | 3 +-- fs/ocfs2/dlm/dlmrecovery.c | 9 +++------ fs/ocfs2/dlm/dlmthread.c | 6 ++---- fs/ocfs2/dlm/dlmunlock.c | 3 +-- fs/ocfs2/journal.c | 3 +-- fs/reiserfs/journal.c | 6 ++---- fs/smbfs/request.c | 6 ++---- fs/smbfs/smbiod.c | 3 +-- 22 files changed, 38 insertions(+), 76 deletions(-) diff --git a/fs/afs/cell.c b/fs/afs/cell.c index 009a9ae88d6..bfc1fd22d5b 100644 --- a/fs/afs/cell.c +++ b/fs/afs/cell.c @@ -413,8 +413,7 @@ int afs_server_find_by_peer(const struct rxrpc_peer *peer, /* we found it in the graveyard - resurrect it */ found_dead_server: - list_del(&server->link); - list_add_tail(&server->link, &cell->sv_list); + list_move_tail(&server->link, &cell->sv_list); afs_get_server(server); afs_kafstimod_del_timer(&server->timeout); spin_unlock(&cell->sv_gylock); diff --git a/fs/afs/kafsasyncd.c b/fs/afs/kafsasyncd.c index 7ac07d0d47b..f09a794f248 100644 --- a/fs/afs/kafsasyncd.c +++ b/fs/afs/kafsasyncd.c @@ -136,8 +136,7 @@ static int kafsasyncd(void *arg) if (!list_empty(&kafsasyncd_async_attnq)) { op = list_entry(kafsasyncd_async_attnq.next, struct afs_async_op, link); - list_del(&op->link); - list_add_tail(&op->link, + list_move_tail(&op->link, &kafsasyncd_async_busyq); } @@ -204,8 +203,7 @@ void afs_kafsasyncd_begin_op(struct afs_async_op *op) init_waitqueue_entry(&op->waiter, kafsasyncd_task); add_wait_queue(&op->call->waitq, &op->waiter); - list_del(&op->link); - list_add_tail(&op->link, &kafsasyncd_async_busyq); + list_move_tail(&op->link, &kafsasyncd_async_busyq); spin_unlock(&kafsasyncd_async_lock); @@ -223,8 +221,7 @@ void afs_kafsasyncd_attend_op(struct afs_async_op *op) spin_lock(&kafsasyncd_async_lock); - list_del(&op->link); - list_add_tail(&op->link, &kafsasyncd_async_attnq); + list_move_tail(&op->link, &kafsasyncd_async_attnq); spin_unlock(&kafsasyncd_async_lock); diff --git a/fs/afs/server.c b/fs/afs/server.c index 62b093aa41c..22afaae1a4c 100644 --- a/fs/afs/server.c +++ b/fs/afs/server.c @@ -123,8 +123,7 @@ int afs_server_lookup(struct afs_cell *cell, const struct in_addr *addr, resurrect_server: _debug("resurrecting server"); - list_del(&zombie->link); - list_add_tail(&zombie->link, &cell->sv_list); + list_move_tail(&zombie->link, &cell->sv_list); afs_get_server(zombie); afs_kafstimod_del_timer(&zombie->timeout); spin_unlock(&cell->sv_gylock); @@ -168,8 +167,7 @@ void afs_put_server(struct afs_server *server) } spin_lock(&cell->sv_gylock); - list_del(&server->link); - list_add_tail(&server->link, &cell->sv_graveyard); + list_move_tail(&server->link, &cell->sv_graveyard); /* time out in 10 secs */ afs_kafstimod_add_timer(&server->timeout, 10 * HZ); diff --git a/fs/afs/vlocation.c b/fs/afs/vlocation.c index eced20618ec..331f730a1fb 100644 --- a/fs/afs/vlocation.c +++ b/fs/afs/vlocation.c @@ -326,8 +326,7 @@ int afs_vlocation_lookup(struct afs_cell *cell, /* found in the graveyard - resurrect */ _debug("found in graveyard"); atomic_inc(&vlocation->usage); - list_del(&vlocation->link); - list_add_tail(&vlocation->link, &cell->vl_list); + list_move_tail(&vlocation->link, &cell->vl_list); spin_unlock(&cell->vl_gylock); afs_kafstimod_del_timer(&vlocation->timeout); @@ -478,8 +477,7 @@ static void __afs_put_vlocation(struct afs_vlocation *vlocation) } /* move to graveyard queue */ - list_del(&vlocation->link); - list_add_tail(&vlocation->link,&cell->vl_graveyard); + list_move_tail(&vlocation->link,&cell->vl_graveyard); /* remove from pending timeout queue (refcounted if actually being * updated) */ diff --git a/fs/afs/vnode.c b/fs/afs/vnode.c index 9867fef3261..cf62da5d782 100644 --- a/fs/afs/vnode.c +++ b/fs/afs/vnode.c @@ -104,8 +104,7 @@ static void afs_vnode_finalise_status_update(struct afs_vnode *vnode, vnode->cb_expiry * HZ); spin_lock(&afs_cb_hash_lock); - list_del(&vnode->cb_hash_link); - list_add_tail(&vnode->cb_hash_link, + list_move_tail(&vnode->cb_hash_link, &afs_cb_hash(server, &vnode->fid)); spin_unlock(&afs_cb_hash_lock); diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index 4456d1daa40..8dbd44f10e9 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -376,8 +376,7 @@ next: DPRINTK("returning %p %.*s", expired, (int)expired->d_name.len, expired->d_name.name); spin_lock(&dcache_lock); - list_del(&expired->d_parent->d_subdirs); - list_add(&expired->d_parent->d_subdirs, &expired->d_u.d_child); + list_move(&expired->d_parent->d_subdirs, &expired->d_u.d_child); spin_unlock(&dcache_lock); return expired; } diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c index 5f952187fc5..207f8006fd6 100644 --- a/fs/configfs/dir.c +++ b/fs/configfs/dir.c @@ -1009,8 +1009,7 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir /* fallthrough */ default: if (filp->f_pos == 2) { - list_del(q); - list_add(q, &parent_sd->s_children); + list_move(q, &parent_sd->s_children); } for (p=q->next; p!= &parent_sd->s_children; p=p->next) { struct configfs_dirent *next; @@ -1033,8 +1032,7 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir dt_type(next)) < 0) return 0; - list_del(q); - list_add(q, p); + list_move(q, p); p = q; filp->f_pos++; } diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index 1862e8bc101..b8886f048ea 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -53,8 +53,7 @@ static void jffs2_erase_block(struct jffs2_sb_info *c, if (!instr) { printk(KERN_WARNING "kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n"); spin_lock(&c->erase_completion_lock); - list_del(&jeb->list); - list_add(&jeb->list, &c->erase_pending_list); + list_move(&jeb->list, &c->erase_pending_list); c->erasing_size -= c->sector_size; c->dirty_size += c->sector_size; jeb->dirty_size = c->sector_size; @@ -86,8 +85,7 @@ static void jffs2_erase_block(struct jffs2_sb_info *c, /* Erase failed immediately. Refile it on the list */ D1(printk(KERN_DEBUG "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", jeb->offset, ret)); spin_lock(&c->erase_completion_lock); - list_del(&jeb->list); - list_add(&jeb->list, &c->erase_pending_list); + list_move(&jeb->list, &c->erase_pending_list); c->erasing_size -= c->sector_size; c->dirty_size += c->sector_size; jeb->dirty_size = c->sector_size; @@ -161,8 +159,7 @@ static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblo { D1(printk(KERN_DEBUG "Erase completed successfully at 0x%08x\n", jeb->offset)); spin_lock(&c->erase_completion_lock); - list_del(&jeb->list); - list_add_tail(&jeb->list, &c->erase_complete_list); + list_move_tail(&jeb->list, &c->erase_complete_list); spin_unlock(&c->erase_completion_lock); /* Ensure that kupdated calls us again to mark them clean */ jffs2_erase_pending_trigger(c); @@ -178,8 +175,7 @@ static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) { /* We'd like to give this block another try. */ spin_lock(&c->erase_completion_lock); - list_del(&jeb->list); - list_add(&jeb->list, &c->erase_pending_list); + list_move(&jeb->list, &c->erase_pending_list); c->erasing_size -= c->sector_size; c->dirty_size += c->sector_size; jeb->dirty_size = c->sector_size; @@ -191,8 +187,7 @@ static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock spin_lock(&c->erase_completion_lock); c->erasing_size -= c->sector_size; c->bad_size += c->sector_size; - list_del(&jeb->list); - list_add(&jeb->list, &c->bad_list); + list_move(&jeb->list, &c->bad_list); c->nr_erasing_blocks--; spin_unlock(&c->erase_completion_lock); wake_up(&c->erase_wait); diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index 8bedfd2ff68..ac0c350ed7d 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -211,8 +211,7 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c) struct jffs2_eraseblock *ejeb; ejeb = list_entry(c->erasable_list.next, struct jffs2_eraseblock, list); - list_del(&ejeb->list); - list_add_tail(&ejeb->list, &c->erase_pending_list); + list_move_tail(&ejeb->list, &c->erase_pending_list); c->nr_erasing_blocks++; jffs2_erase_pending_trigger(c); D1(printk(KERN_DEBUG "jffs2_find_nextblock: Triggering erase of erasable block at 0x%08x\n", diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index a7f153f79ec..b9b700730df 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -495,8 +495,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c) /* Fix up the original jeb now it's on the bad_list */ if (first_raw == jeb->first_node) { D1(printk(KERN_DEBUG "Failing block at %08x is now empty. Moving to erase_pending_list\n", jeb->offset)); - list_del(&jeb->list); - list_add(&jeb->list, &c->erase_pending_list); + list_move(&jeb->list, &c->erase_pending_list); c->nr_erasing_blocks++; jffs2_erase_pending_trigger(c); } diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 96c7578cbe1..1630b5670dc 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -529,8 +529,7 @@ move_to_confirmed(struct nfs4_client *clp) dprintk("NFSD: move_to_confirm nfs4_client %p\n", clp); list_del_init(&clp->cl_strhash); - list_del_init(&clp->cl_idhash); - list_add(&clp->cl_idhash, &conf_id_hashtbl[idhashval]); + list_move(&clp->cl_idhash, &conf_id_hashtbl[idhashval]); strhashval = clientstr_hashval(clp->cl_recdir); list_add(&clp->cl_strhash, &conf_str_hashtbl[strhashval]); renew_client(clp); diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c index d852ebb538e..fdf7cf3dfad 100644 --- a/fs/nfsd/nfscache.c +++ b/fs/nfsd/nfscache.c @@ -103,8 +103,7 @@ nfsd_cache_shutdown(void) static void lru_put_end(struct svc_cacherep *rp) { - list_del(&rp->c_lru); - list_add_tail(&rp->c_lru, &lru_head); + list_move_tail(&rp->c_lru, &lru_head); } /* diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c index 355593dd8ef..87ee29cad50 100644 --- a/fs/ocfs2/dlm/dlmast.c +++ b/fs/ocfs2/dlm/dlmast.c @@ -381,8 +381,7 @@ do_ast: ret = DLM_NORMAL; if (past->type == DLM_AST) { /* do not alter lock refcount. switching lists. */ - list_del_init(&lock->list); - list_add_tail(&lock->list, &res->granted); + list_move_tail(&lock->list, &res->granted); mlog(0, "ast: adding to granted list... type=%d, " "convert_type=%d\n", lock->ml.type, lock->ml.convert_type); if (lock->ml.convert_type != LKM_IVMODE) { diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c index 8285228d9e3..70888b31e75 100644 --- a/fs/ocfs2/dlm/dlmconvert.c +++ b/fs/ocfs2/dlm/dlmconvert.c @@ -231,8 +231,7 @@ switch_queues: lock->ml.convert_type = type; /* do not alter lock refcount. switching lists. */ - list_del_init(&lock->list); - list_add_tail(&lock->list, &res->converting); + list_move_tail(&lock->list, &res->converting); unlock_exit: spin_unlock(&lock->spinlock); @@ -248,8 +247,7 @@ void dlm_revert_pending_convert(struct dlm_lock_resource *res, struct dlm_lock *lock) { /* do not alter lock refcount. switching lists. */ - list_del_init(&lock->list); - list_add_tail(&lock->list, &res->granted); + list_move_tail(&lock->list, &res->granted); lock->ml.convert_type = LKM_IVMODE; lock->lksb->flags &= ~(DLM_LKSB_GET_LVB|DLM_LKSB_PUT_LVB); } @@ -294,8 +292,7 @@ enum dlm_status dlmconvert_remote(struct dlm_ctxt *dlm, res->state |= DLM_LOCK_RES_IN_PROGRESS; /* move lock to local convert queue */ /* do not alter lock refcount. switching lists. */ - list_del_init(&lock->list); - list_add_tail(&lock->list, &res->converting); + list_move_tail(&lock->list, &res->converting); lock->convert_pending = 1; lock->ml.convert_type = type; diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 6fea28318d6..55cda25ae11 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -239,8 +239,7 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm, mlog(0, "%s: $RECOVERY lock for this node (%u) is " "mastered by %u; got lock, manually granting (no ast)\n", dlm->name, dlm->node_num, res->owner); - list_del_init(&lock->list); - list_add_tail(&lock->list, &res->granted); + list_move_tail(&lock->list, &res->granted); } spin_unlock(&res->spinlock); diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 805cbabac05..9962190e741 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -905,13 +905,11 @@ static void dlm_move_reco_locks_to_list(struct dlm_ctxt *dlm, mlog(0, "found lockres owned by dead node while " "doing recovery for node %u. sending it.\n", dead_node); - list_del_init(&res->recovering); - list_add_tail(&res->recovering, list); + list_move_tail(&res->recovering, list); } else if (res->owner == DLM_LOCK_RES_OWNER_UNKNOWN) { mlog(0, "found UNKNOWN owner while doing recovery " "for node %u. sending it.\n", dead_node); - list_del_init(&res->recovering); - list_add_tail(&res->recovering, list); + list_move_tail(&res->recovering, list); } } spin_unlock(&dlm->spinlock); @@ -1529,8 +1527,7 @@ static int dlm_process_recovery_data(struct dlm_ctxt *dlm, /* move the lock to its proper place */ /* do not alter lock refcount. switching lists. */ - list_del_init(&lock->list); - list_add_tail(&lock->list, queue); + list_move_tail(&lock->list, queue); spin_unlock(&res->spinlock); mlog(0, "just reordered a local lock!\n"); diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index 5be9d14f12c..44d3b57ae8a 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -318,8 +318,7 @@ converting: target->ml.type = target->ml.convert_type; target->ml.convert_type = LKM_IVMODE; - list_del_init(&target->list); - list_add_tail(&target->list, &res->granted); + list_move_tail(&target->list, &res->granted); BUG_ON(!target->lksb); target->lksb->status = DLM_NORMAL; @@ -380,8 +379,7 @@ blocked: target->ml.type, target->ml.node); // target->ml.type is already correct - list_del_init(&target->list); - list_add_tail(&target->list, &res->granted); + list_move_tail(&target->list, &res->granted); BUG_ON(!target->lksb); target->lksb->status = DLM_NORMAL; diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index 7b1a2754267..ac89c509daf 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -271,8 +271,7 @@ void dlm_commit_pending_unlock(struct dlm_lock_resource *res, void dlm_commit_pending_cancel(struct dlm_lock_resource *res, struct dlm_lock *lock) { - list_del_init(&lock->list); - list_add_tail(&lock->list, &res->granted); + list_move_tail(&lock->list, &res->granted); lock->ml.convert_type = LKM_IVMODE; } diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index eebc3cfa6be..3fe8781c22c 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -222,8 +222,7 @@ void ocfs2_handle_add_inode(struct ocfs2_journal_handle *handle, BUG_ON(!list_empty(&OCFS2_I(inode)->ip_handle_list)); OCFS2_I(inode)->ip_handle = handle; - list_del(&(OCFS2_I(inode)->ip_handle_list)); - list_add_tail(&(OCFS2_I(inode)->ip_handle_list), &(handle->inode_list)); + list_move_tail(&(OCFS2_I(inode)->ip_handle_list), &(handle->inode_list)); } static void ocfs2_handle_unlock_inodes(struct ocfs2_journal_handle *handle) diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 1b73529b809..49d1a53dbef 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -834,8 +834,7 @@ static int write_ordered_buffers(spinlock_t * lock, get_bh(bh); if (test_set_buffer_locked(bh)) { if (!buffer_dirty(bh)) { - list_del_init(&jh->list); - list_add(&jh->list, &tmp); + list_move(&jh->list, &tmp); goto loop_next; } spin_unlock(lock); @@ -855,8 +854,7 @@ static int write_ordered_buffers(spinlock_t * lock, ret = -EIO; } if (buffer_dirty(bh)) { - list_del_init(&jh->list); - list_add(&jh->list, &tmp); + list_move(&jh->list, &tmp); add_to_chunk(&chunk, bh, lock, write_ordered_chunk); } else { reiserfs_free_jh(bh); diff --git a/fs/smbfs/request.c b/fs/smbfs/request.c index c71dd2760d3..c8e96195b96 100644 --- a/fs/smbfs/request.c +++ b/fs/smbfs/request.c @@ -400,8 +400,7 @@ static int smb_request_send_req(struct smb_request *req) if (!(req->rq_flags & SMB_REQ_TRANSMITTED)) goto out; - list_del_init(&req->rq_queue); - list_add_tail(&req->rq_queue, &server->recvq); + list_move_tail(&req->rq_queue, &server->recvq); result = 1; out: return result; @@ -435,8 +434,7 @@ int smb_request_send_server(struct smb_sb_info *server) result = smb_request_send_req(req); if (result < 0) { server->conn_error = result; - list_del_init(&req->rq_queue); - list_add(&req->rq_queue, &server->xmitq); + list_move(&req->rq_queue, &server->xmitq); result = -EIO; goto out; } diff --git a/fs/smbfs/smbiod.c b/fs/smbfs/smbiod.c index 3f71384020c..24577e2c489 100644 --- a/fs/smbfs/smbiod.c +++ b/fs/smbfs/smbiod.c @@ -193,8 +193,7 @@ int smbiod_retry(struct smb_sb_info *server) if (req->rq_flags & SMB_REQ_RETRY) { /* must move the request to the xmitq */ VERBOSE("retrying request %p on recvq\n", req); - list_del(&req->rq_queue); - list_add(&req->rq_queue, &server->xmitq); + list_move(&req->rq_queue, &server->xmitq); continue; } #endif -- cgit v1.2.3 From 7e047ef5fe2d52e83020e856b1bf2556a6a2ce98 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 26 Jun 2006 00:24:50 -0700 Subject: [PATCH] keys: sort out key quota system Add the ability for key creation to overrun the user's quota in some circumstances - notably when a session keyring is created and assigned to a process that didn't previously have one. This means it's still possible to log in, should PAM require the creation of a new session keyring, and fix an overburdened key quota. Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/key.h | 13 ++++++++++--- include/linux/security.h | 11 +++++++---- security/dummy.c | 3 ++- security/keys/internal.h | 3 ++- security/keys/key.c | 26 ++++++++++++++------------ security/keys/keyctl.c | 5 +++-- security/keys/keyring.c | 4 ++-- security/keys/process_keys.c | 24 +++++++++++++++++------- security/keys/request_key.c | 36 +++++++++++++++++++++--------------- security/keys/request_key_auth.c | 2 +- security/selinux/hooks.c | 9 ++++++--- 11 files changed, 85 insertions(+), 51 deletions(-) diff --git a/include/linux/key.h b/include/linux/key.h index e81ebf910d0..e693e729bc9 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -248,7 +248,14 @@ extern struct key *key_alloc(struct key_type *type, const char *desc, uid_t uid, gid_t gid, struct task_struct *ctx, - key_perm_t perm, int not_in_quota); + key_perm_t perm, + unsigned long flags); + + +#define KEY_ALLOC_IN_QUOTA 0x0000 /* add to quota, reject if would overrun */ +#define KEY_ALLOC_QUOTA_OVERRUN 0x0001 /* add to quota, permit even if overrun */ +#define KEY_ALLOC_NOT_IN_QUOTA 0x0002 /* not in quota */ + extern int key_payload_reserve(struct key *key, size_t datalen); extern int key_instantiate_and_link(struct key *key, const void *data, @@ -285,7 +292,7 @@ extern key_ref_t key_create_or_update(key_ref_t keyring, const char *description, const void *payload, size_t plen, - int not_in_quota); + unsigned long flags); extern int key_update(key_ref_t key, const void *payload, @@ -299,7 +306,7 @@ extern int key_unlink(struct key *keyring, extern struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid, struct task_struct *ctx, - int not_in_quota, + unsigned long flags, struct key *dest); extern int keyring_clear(struct key *keyring); diff --git a/include/linux/security.h b/include/linux/security.h index d2c17bd91a2..51805806f97 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -862,6 +862,7 @@ struct swap_info_struct; * Permit allocation of a key and assign security data. Note that key does * not have a serial number assigned at this point. * @key points to the key. + * @flags is the allocation flags * Return 0 if permission is granted, -ve error otherwise. * @key_free: * Notification of destruction; free security data. @@ -1324,7 +1325,7 @@ struct security_operations { /* key management security hooks */ #ifdef CONFIG_KEYS - int (*key_alloc)(struct key *key, struct task_struct *tsk); + int (*key_alloc)(struct key *key, struct task_struct *tsk, unsigned long flags); void (*key_free)(struct key *key); int (*key_permission)(key_ref_t key_ref, struct task_struct *context, @@ -3040,9 +3041,10 @@ static inline int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid #ifdef CONFIG_KEYS #ifdef CONFIG_SECURITY static inline int security_key_alloc(struct key *key, - struct task_struct *tsk) + struct task_struct *tsk, + unsigned long flags) { - return security_ops->key_alloc(key, tsk); + return security_ops->key_alloc(key, tsk, flags); } static inline void security_key_free(struct key *key) @@ -3060,7 +3062,8 @@ static inline int security_key_permission(key_ref_t key_ref, #else static inline int security_key_alloc(struct key *key, - struct task_struct *tsk) + struct task_struct *tsk, + unsigned long flags) { return 0; } diff --git a/security/dummy.c b/security/dummy.c index c3c5493581e..310fcdf7b74 100644 --- a/security/dummy.c +++ b/security/dummy.c @@ -870,7 +870,8 @@ static int dummy_setprocattr(struct task_struct *p, char *name, void *value, siz } #ifdef CONFIG_KEYS -static inline int dummy_key_alloc(struct key *key, struct task_struct *ctx) +static inline int dummy_key_alloc(struct key *key, struct task_struct *ctx, + unsigned long flags) { return 0; } diff --git a/security/keys/internal.h b/security/keys/internal.h index e066e605795..3c2877f0663 100644 --- a/security/keys/internal.h +++ b/security/keys/internal.h @@ -99,7 +99,8 @@ extern int install_process_keyring(struct task_struct *tsk); extern struct key *request_key_and_link(struct key_type *type, const char *description, const char *callout_info, - struct key *dest_keyring); + struct key *dest_keyring, + unsigned long flags); /* * request_key authorisation diff --git a/security/keys/key.c b/security/keys/key.c index 51f85155738..3601fddca9f 100644 --- a/security/keys/key.c +++ b/security/keys/key.c @@ -248,7 +248,7 @@ static inline void key_alloc_serial(struct key *key) */ struct key *key_alloc(struct key_type *type, const char *desc, uid_t uid, gid_t gid, struct task_struct *ctx, - key_perm_t perm, int not_in_quota) + key_perm_t perm, unsigned long flags) { struct key_user *user = NULL; struct key *key; @@ -269,12 +269,14 @@ struct key *key_alloc(struct key_type *type, const char *desc, /* check that the user's quota permits allocation of another key and * its description */ - if (!not_in_quota) { + if (!(flags & KEY_ALLOC_NOT_IN_QUOTA)) { spin_lock(&user->lock); - if (user->qnkeys + 1 >= KEYQUOTA_MAX_KEYS || - user->qnbytes + quotalen >= KEYQUOTA_MAX_BYTES - ) - goto no_quota; + if (!(flags & KEY_ALLOC_QUOTA_OVERRUN)) { + if (user->qnkeys + 1 >= KEYQUOTA_MAX_KEYS || + user->qnbytes + quotalen >= KEYQUOTA_MAX_BYTES + ) + goto no_quota; + } user->qnkeys++; user->qnbytes += quotalen; @@ -308,7 +310,7 @@ struct key *key_alloc(struct key_type *type, const char *desc, key->payload.data = NULL; key->security = NULL; - if (!not_in_quota) + if (!(flags & KEY_ALLOC_NOT_IN_QUOTA)) key->flags |= 1 << KEY_FLAG_IN_QUOTA; memset(&key->type_data, 0, sizeof(key->type_data)); @@ -318,7 +320,7 @@ struct key *key_alloc(struct key_type *type, const char *desc, #endif /* let the security module know about the key */ - ret = security_key_alloc(key, ctx); + ret = security_key_alloc(key, ctx, flags); if (ret < 0) goto security_error; @@ -332,7 +334,7 @@ error: security_error: kfree(key->description); kmem_cache_free(key_jar, key); - if (!not_in_quota) { + if (!(flags & KEY_ALLOC_NOT_IN_QUOTA)) { spin_lock(&user->lock); user->qnkeys--; user->qnbytes -= quotalen; @@ -345,7 +347,7 @@ security_error: no_memory_3: kmem_cache_free(key_jar, key); no_memory_2: - if (!not_in_quota) { + if (!(flags & KEY_ALLOC_NOT_IN_QUOTA)) { spin_lock(&user->lock); user->qnkeys--; user->qnbytes -= quotalen; @@ -761,7 +763,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref, const char *description, const void *payload, size_t plen, - int not_in_quota) + unsigned long flags) { struct key_type *ktype; struct key *keyring, *key = NULL; @@ -822,7 +824,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref, /* allocate a new key */ key = key_alloc(ktype, description, current->fsuid, current->fsgid, - current, perm, not_in_quota); + current, perm, flags); if (IS_ERR(key)) { key_ref = ERR_PTR(PTR_ERR(key)); goto error_3; diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index ed71d86d2ce..d74458522e9 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -102,7 +102,7 @@ asmlinkage long sys_add_key(const char __user *_type, /* create or update the requested key and add it to the target * keyring */ key_ref = key_create_or_update(keyring_ref, type, description, - payload, plen, 0); + payload, plen, KEY_ALLOC_IN_QUOTA); if (!IS_ERR(key_ref)) { ret = key_ref_to_ptr(key_ref)->serial; key_ref_put(key_ref); @@ -184,7 +184,8 @@ asmlinkage long sys_request_key(const char __user *_type, /* do the search */ key = request_key_and_link(ktype, description, callout_info, - key_ref_to_ptr(dest_ref)); + key_ref_to_ptr(dest_ref), + KEY_ALLOC_IN_QUOTA); if (IS_ERR(key)) { ret = PTR_ERR(key); goto error5; diff --git a/security/keys/keyring.c b/security/keys/keyring.c index 1357207fc9d..6c282bd937e 100644 --- a/security/keys/keyring.c +++ b/security/keys/keyring.c @@ -240,7 +240,7 @@ static long keyring_read(const struct key *keyring, * allocate a keyring and link into the destination keyring */ struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid, - struct task_struct *ctx, int not_in_quota, + struct task_struct *ctx, unsigned long flags, struct key *dest) { struct key *keyring; @@ -249,7 +249,7 @@ struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid, keyring = key_alloc(&key_type_keyring, description, uid, gid, ctx, (KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_ALL, - not_in_quota); + flags); if (!IS_ERR(keyring)) { ret = key_instantiate_and_link(keyring, NULL, 0, dest, NULL); diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c index 4d9825f9962..32150cf7c37 100644 --- a/security/keys/process_keys.c +++ b/security/keys/process_keys.c @@ -77,7 +77,8 @@ int alloc_uid_keyring(struct user_struct *user, /* concoct a default session keyring */ sprintf(buf, "_uid_ses.%u", user->uid); - session_keyring = keyring_alloc(buf, user->uid, (gid_t) -1, ctx, 0, NULL); + session_keyring = keyring_alloc(buf, user->uid, (gid_t) -1, ctx, + KEY_ALLOC_IN_QUOTA, NULL); if (IS_ERR(session_keyring)) { ret = PTR_ERR(session_keyring); goto error; @@ -87,8 +88,8 @@ int alloc_uid_keyring(struct user_struct *user, * keyring */ sprintf(buf, "_uid.%u", user->uid); - uid_keyring = keyring_alloc(buf, user->uid, (gid_t) -1, ctx, 0, - session_keyring); + uid_keyring = keyring_alloc(buf, user->uid, (gid_t) -1, ctx, + KEY_ALLOC_IN_QUOTA, session_keyring); if (IS_ERR(uid_keyring)) { key_put(session_keyring); ret = PTR_ERR(uid_keyring); @@ -144,7 +145,8 @@ int install_thread_keyring(struct task_struct *tsk) sprintf(buf, "_tid.%u", tsk->pid); - keyring = keyring_alloc(buf, tsk->uid, tsk->gid, tsk, 1, NULL); + keyring = keyring_alloc(buf, tsk->uid, tsk->gid, tsk, + KEY_ALLOC_QUOTA_OVERRUN, NULL); if (IS_ERR(keyring)) { ret = PTR_ERR(keyring); goto error; @@ -178,7 +180,8 @@ int install_process_keyring(struct task_struct *tsk) if (!tsk->signal->process_keyring) { sprintf(buf, "_pid.%u", tsk->tgid); - keyring = keyring_alloc(buf, tsk->uid, tsk->gid, tsk, 1, NULL); + keyring = keyring_alloc(buf, tsk->uid, tsk->gid, tsk, + KEY_ALLOC_QUOTA_OVERRUN, NULL); if (IS_ERR(keyring)) { ret = PTR_ERR(keyring); goto error; @@ -209,6 +212,7 @@ error: static int install_session_keyring(struct task_struct *tsk, struct key *keyring) { + unsigned long flags; struct key *old; char buf[20]; @@ -218,7 +222,12 @@ static int install_session_keyring(struct task_struct *tsk, if (!keyring) { sprintf(buf, "_ses.%u", tsk->tgid); - keyring = keyring_alloc(buf, tsk->uid, tsk->gid, tsk, 1, NULL); + flags = KEY_ALLOC_QUOTA_OVERRUN; + if (tsk->signal->session_keyring) + flags = KEY_ALLOC_IN_QUOTA; + + keyring = keyring_alloc(buf, tsk->uid, tsk->gid, tsk, + flags, NULL); if (IS_ERR(keyring)) return PTR_ERR(keyring); } @@ -728,7 +737,8 @@ long join_session_keyring(const char *name) keyring = find_keyring_by_name(name, 0); if (PTR_ERR(keyring) == -ENOKEY) { /* not found - try and create a new one */ - keyring = keyring_alloc(name, tsk->uid, tsk->gid, tsk, 0, NULL); + keyring = keyring_alloc(name, tsk->uid, tsk->gid, tsk, + KEY_ALLOC_IN_QUOTA, NULL); if (IS_ERR(keyring)) { ret = PTR_ERR(keyring); goto error2; diff --git a/security/keys/request_key.c b/security/keys/request_key.c index eab66a06ca5..58d1efd4fc2 100644 --- a/security/keys/request_key.c +++ b/security/keys/request_key.c @@ -48,8 +48,8 @@ static int call_sbin_request_key(struct key *key, /* allocate a new session keyring */ sprintf(desc, "_req.%u", key->serial); - keyring = keyring_alloc(desc, current->fsuid, current->fsgid, - current, 1, NULL); + keyring = keyring_alloc(desc, current->fsuid, current->fsgid, current, + KEY_ALLOC_QUOTA_OVERRUN, NULL); if (IS_ERR(keyring)) { ret = PTR_ERR(keyring); goto error_alloc; @@ -126,7 +126,8 @@ error_alloc: */ static struct key *__request_key_construction(struct key_type *type, const char *description, - const char *callout_info) + const char *callout_info, + unsigned long flags) { request_key_actor_t actor; struct key_construction cons; @@ -134,12 +135,12 @@ static struct key *__request_key_construction(struct key_type *type, struct key *key, *authkey; int ret, negated; - kenter("%s,%s,%s", type->name, description, callout_info); + kenter("%s,%s,%s,%lx", type->name, description, callout_info, flags); /* create a key and add it to the queue */ key = key_alloc(type, description, - current->fsuid, current->fsgid, - current, KEY_POS_ALL, 0); + current->fsuid, current->fsgid, current, KEY_POS_ALL, + flags); if (IS_ERR(key)) goto alloc_failed; @@ -258,15 +259,16 @@ alloc_failed: static struct key *request_key_construction(struct key_type *type, const char *description, struct key_user *user, - const char *callout_info) + const char *callout_info, + unsigned long flags) { struct key_construction *pcons; struct key *key, *ckey; DECLARE_WAITQUEUE(myself, current); - kenter("%s,%s,{%d},%s", - type->name, description, user->uid, callout_info); + kenter("%s,%s,{%d},%s,%lx", + type->name, description, user->uid, callout_info, flags); /* see if there's such a key under construction already */ down_write(&key_construction_sem); @@ -282,7 +284,8 @@ static struct key *request_key_construction(struct key_type *type, } /* see about getting userspace to construct the key */ - key = __request_key_construction(type, description, callout_info); + key = __request_key_construction(type, description, callout_info, + flags); error: kleave(" = %p", key); return key; @@ -389,14 +392,15 @@ static void request_key_link(struct key *key, struct key *dest_keyring) struct key *request_key_and_link(struct key_type *type, const char *description, const char *callout_info, - struct key *dest_keyring) + struct key *dest_keyring, + unsigned long flags) { struct key_user *user; struct key *key; key_ref_t key_ref; - kenter("%s,%s,%s,%p", - type->name, description, callout_info, dest_keyring); + kenter("%s,%s,%s,%p,%lx", + type->name, description, callout_info, dest_keyring, flags); /* search all the process keyrings for a key */ key_ref = search_process_keyrings(type, description, type->match, @@ -429,7 +433,8 @@ struct key *request_key_and_link(struct key_type *type, /* ask userspace (returns NULL if it waited on a key * being constructed) */ key = request_key_construction(type, description, - user, callout_info); + user, callout_info, + flags); if (key) break; @@ -485,7 +490,8 @@ struct key *request_key(struct key_type *type, const char *description, const char *callout_info) { - return request_key_and_link(type, description, callout_info, NULL); + return request_key_and_link(type, description, callout_info, NULL, + KEY_ALLOC_IN_QUOTA); } /* end request_key() */ diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c index cb9817ced3f..cbf58a91b00 100644 --- a/security/keys/request_key_auth.c +++ b/security/keys/request_key_auth.c @@ -187,7 +187,7 @@ struct key *request_key_auth_new(struct key *target, const char *callout_info) authkey = key_alloc(&key_type_request_key_auth, desc, current->fsuid, current->fsgid, current, KEY_POS_VIEW | KEY_POS_READ | KEY_POS_SEARCH | - KEY_USR_VIEW, 1); + KEY_USR_VIEW, KEY_ALLOC_NOT_IN_QUOTA); if (IS_ERR(authkey)) { ret = PTR_ERR(authkey); goto error_alloc; diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 79c16e31c88..13384fef0d6 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -4264,7 +4264,8 @@ static int selinux_setprocattr(struct task_struct *p, #ifdef CONFIG_KEYS -static int selinux_key_alloc(struct key *k, struct task_struct *tsk) +static int selinux_key_alloc(struct key *k, struct task_struct *tsk, + unsigned long flags) { struct task_security_struct *tsec = tsk->security; struct key_security_struct *ksec; @@ -4513,8 +4514,10 @@ static __init int selinux_init(void) #ifdef CONFIG_KEYS /* Add security information to initial keyrings */ - security_key_alloc(&root_user_keyring, current); - security_key_alloc(&root_session_keyring, current); + security_key_alloc(&root_user_keyring, current, + KEY_ALLOC_NOT_IN_QUOTA); + security_key_alloc(&root_session_keyring, current, + KEY_ALLOC_NOT_IN_QUOTA); #endif return 0; -- cgit v1.2.3 From 31204ed925b067d2bb65adb89501656f8274a32a Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 26 Jun 2006 00:24:51 -0700 Subject: [PATCH] keys: discard the contents of a key on revocation Cause the keys linked to a keyring to be unlinked from it when revoked and it causes the data attached to a user-defined key to be discarded when revoked. This frees up most of the quota a key occupied at that point, rather than waiting for the key to actually be destroyed. Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/keys/user-type.h | 1 + security/keys/keyring.c | 21 +++++++++++++++++++++ security/keys/user_defined.c | 25 ++++++++++++++++++++++++- 3 files changed, 46 insertions(+), 1 deletion(-) diff --git a/include/keys/user-type.h b/include/keys/user-type.h index a3dae1803f4..c37c34275a4 100644 --- a/include/keys/user-type.h +++ b/include/keys/user-type.h @@ -37,6 +37,7 @@ extern struct key_type key_type_user; extern int user_instantiate(struct key *key, const void *data, size_t datalen); extern int user_update(struct key *key, const void *data, size_t datalen); extern int user_match(const struct key *key, const void *criterion); +extern void user_revoke(struct key *key); extern void user_destroy(struct key *key); extern void user_describe(const struct key *user, struct seq_file *m); extern long user_read(const struct key *key, diff --git a/security/keys/keyring.c b/security/keys/keyring.c index 6c282bd937e..e8d02acc51e 100644 --- a/security/keys/keyring.c +++ b/security/keys/keyring.c @@ -49,6 +49,7 @@ static inline unsigned keyring_hash(const char *desc) static int keyring_instantiate(struct key *keyring, const void *data, size_t datalen); static int keyring_match(const struct key *keyring, const void *criterion); +static void keyring_revoke(struct key *keyring); static void keyring_destroy(struct key *keyring); static void keyring_describe(const struct key *keyring, struct seq_file *m); static long keyring_read(const struct key *keyring, @@ -59,6 +60,7 @@ struct key_type key_type_keyring = { .def_datalen = sizeof(struct keyring_list), .instantiate = keyring_instantiate, .match = keyring_match, + .revoke = keyring_revoke, .destroy = keyring_destroy, .describe = keyring_describe, .read = keyring_read, @@ -953,3 +955,22 @@ int keyring_clear(struct key *keyring) } /* end keyring_clear() */ EXPORT_SYMBOL(keyring_clear); + +/*****************************************************************************/ +/* + * dispose of the links from a revoked keyring + * - called with the key sem write-locked + */ +static void keyring_revoke(struct key *keyring) +{ + struct keyring_list *klist = keyring->payload.subscriptions; + + /* adjust the quota */ + key_payload_reserve(keyring, 0); + + if (klist) { + rcu_assign_pointer(keyring->payload.subscriptions, NULL); + call_rcu(&klist->rcu, keyring_clear_rcu_disposal); + } + +} /* end keyring_revoke() */ diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c index 8e71895b97a..5bbfdebb7ac 100644 --- a/security/keys/user_defined.c +++ b/security/keys/user_defined.c @@ -28,6 +28,7 @@ struct key_type key_type_user = { .instantiate = user_instantiate, .update = user_update, .match = user_match, + .revoke = user_revoke, .destroy = user_destroy, .describe = user_describe, .read = user_read, @@ -67,6 +68,7 @@ error: return ret; } /* end user_instantiate() */ + EXPORT_SYMBOL_GPL(user_instantiate); /*****************************************************************************/ @@ -141,7 +143,28 @@ EXPORT_SYMBOL_GPL(user_match); /*****************************************************************************/ /* - * dispose of the data dangling from the corpse of a user + * dispose of the links from a revoked keyring + * - called with the key sem write-locked + */ +void user_revoke(struct key *key) +{ + struct user_key_payload *upayload = key->payload.data; + + /* clear the quota */ + key_payload_reserve(key, 0); + + if (upayload) { + rcu_assign_pointer(key->payload.data, NULL); + call_rcu(&upayload->rcu, user_update_rcu_disposal); + } + +} /* end user_revoke() */ + +EXPORT_SYMBOL(user_revoke); + +/*****************************************************************************/ +/* + * dispose of the data dangling from the corpse of a user key */ void user_destroy(struct key *key) { -- cgit v1.2.3 From 5801649d8b83e7cb9b15839761bdee594653c294 Mon Sep 17 00:00:00 2001 From: Fredrik Tolf Date: Mon, 26 Jun 2006 00:24:51 -0700 Subject: [PATCH] keys: let keyctl_chown() change a key's owner Let keyctl_chown() change a key's owner, including attempting to transfer the quota burden to the new user. Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- security/keys/keyctl.c | 56 ++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 48 insertions(+), 8 deletions(-) diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index d74458522e9..329411cf876 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -673,6 +673,7 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen) */ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid) { + struct key_user *newowner, *zapowner = NULL; struct key *key; key_ref_t key_ref; long ret; @@ -696,19 +697,50 @@ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid) if (!capable(CAP_SYS_ADMIN)) { /* only the sysadmin can chown a key to some other UID */ if (uid != (uid_t) -1 && key->uid != uid) - goto no_access; + goto error_put; /* only the sysadmin can set the key's GID to a group other * than one of those that the current process subscribes to */ if (gid != (gid_t) -1 && gid != key->gid && !in_group_p(gid)) - goto no_access; + goto error_put; } - /* change the UID (have to update the quotas) */ + /* change the UID */ if (uid != (uid_t) -1 && uid != key->uid) { - /* don't support UID changing yet */ - ret = -EOPNOTSUPP; - goto no_access; + ret = -ENOMEM; + newowner = key_user_lookup(uid); + if (!newowner) + goto error_put; + + /* transfer the quota burden to the new user */ + if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) { + spin_lock(&newowner->lock); + if (newowner->qnkeys + 1 >= KEYQUOTA_MAX_KEYS || + newowner->qnbytes + key->quotalen >= + KEYQUOTA_MAX_BYTES) + goto quota_overrun; + + newowner->qnkeys++; + newowner->qnbytes += key->quotalen; + spin_unlock(&newowner->lock); + + spin_lock(&key->user->lock); + key->user->qnkeys--; + key->user->qnbytes -= key->quotalen; + spin_unlock(&key->user->lock); + } + + atomic_dec(&key->user->nkeys); + atomic_inc(&newowner->nkeys); + + if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) { + atomic_dec(&key->user->nikeys); + atomic_inc(&newowner->nikeys); + } + + zapowner = key->user; + key->user = newowner; + key->uid = uid; } /* change the GID */ @@ -717,12 +749,20 @@ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid) ret = 0; - no_access: +error_put: up_write(&key->sem); key_put(key); - error: + if (zapowner) + key_user_put(zapowner); +error: return ret; +quota_overrun: + spin_unlock(&newowner->lock); + zapowner = newowner; + ret = -EDQUOT; + goto error_put; + } /* end keyctl_chown_key() */ /*****************************************************************************/ -- cgit v1.2.3 From e51f6d343789a4f0a2a7587ad7ec7746969d5c1c Mon Sep 17 00:00:00 2001 From: Michael LeMay Date: Mon, 26 Jun 2006 00:24:54 -0700 Subject: [PATCH] keys: allocate key serial numbers randomly Cause key_alloc_serial() to generate key serial numbers randomly rather than in linear sequence. Using an linear sequence permits a covert communication channel to be established, in which one process can communicate with another by creating or not creating new keys within a certain timeframe. The second process can probe for the expected next key serial number and judge its existence by the error returned. This is a problem as the serial number namespace is globally shared between all tasks, regardless of their context. For more information on this topic, this old TCSEC guide is recommended: http://www.radium.ncsc.mil/tpep/library/rainbow/NCSC-TG-030.html Signed-off-by: Michael LeMay Signed-off-by: James Morris Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- security/keys/key.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/security/keys/key.c b/security/keys/key.c index 3601fddca9f..43295ca37b5 100644 --- a/security/keys/key.c +++ b/security/keys/key.c @@ -15,11 +15,11 @@ #include #include #include +#include #include #include "internal.h" static kmem_cache_t *key_jar; -static key_serial_t key_serial_next = 3; struct rb_root key_serial_tree; /* tree of keys indexed by serial */ DEFINE_SPINLOCK(key_serial_lock); @@ -169,22 +169,23 @@ static void __init __key_insert_serial(struct key *key) /*****************************************************************************/ /* * assign a key the next unique serial number - * - we work through all the serial numbers between 2 and 2^31-1 in turn and - * then wrap + * - these are assigned randomly to avoid security issues through covert + * channel problems */ static inline void key_alloc_serial(struct key *key) { struct rb_node *parent, **p; struct key *xkey; - spin_lock(&key_serial_lock); - - /* propose a likely serial number and look for a hole for it in the + /* propose a random serial number and look for a hole for it in the * serial number tree */ - key->serial = key_serial_next; - if (key->serial < 3) - key->serial = 3; - key_serial_next = key->serial + 1; + do { + get_random_bytes(&key->serial, sizeof(key->serial)); + + key->serial >>= 1; /* negative numbers are not permitted */ + } while (key->serial < 3); + + spin_lock(&key_serial_lock); parent = NULL; p = &key_serial_tree.rb_node; @@ -204,12 +205,11 @@ static inline void key_alloc_serial(struct key *key) /* we found a key with the proposed serial number - walk the tree from * that point looking for the next unused serial number */ - serial_exists: +serial_exists: for (;;) { - key->serial = key_serial_next; + key->serial++; if (key->serial < 2) key->serial = 2; - key_serial_next = key->serial + 1; if (!rb_parent(parent)) p = &key_serial_tree.rb_node; @@ -228,7 +228,7 @@ static inline void key_alloc_serial(struct key *key) } /* we've found a suitable hole - arrange for this key to occupy it */ - insert_here: +insert_here: rb_link_node(&key->serial_node, parent, p); rb_insert_color(&key->serial_node, &key_serial_tree); -- cgit v1.2.3 From 06ec7be557a1259611d6093a00463c42650dc71a Mon Sep 17 00:00:00 2001 From: Michael LeMay Date: Mon, 26 Jun 2006 00:24:56 -0700 Subject: [PATCH] keys: restrict contents of /proc/keys to Viewable keys Restrict /proc/keys such that only those keys to which the current task is granted View permission are presented. The documentation is also updated to reflect these changes. Signed-off-by: Michael LeMay Signed-off-by: James Morris Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/keys.txt | 16 ++++++++++++---- security/Kconfig | 20 +++++++++++++------- security/keys/proc.c | 7 +++++++ 3 files changed, 32 insertions(+), 11 deletions(-) diff --git a/Documentation/keys.txt b/Documentation/keys.txt index 3bbe157b45e..70e83cf664a 100644 --- a/Documentation/keys.txt +++ b/Documentation/keys.txt @@ -270,9 +270,17 @@ about the status of the key service: (*) /proc/keys - This lists all the keys on the system, giving information about their - type, description and permissions. The payload of the key is not available - this way: + This lists the keys that are currently viewable by the task reading the + file, giving information about their type, description and permissions. + It is not possible to view the payload of the key this way, though some + information about it may be given. + + The only keys included in the list are those that grant View permission to + the reading process whether or not it possesses them. Note that LSM + security checks are still performed, and may further filter out keys that + the current process is not authorised to view. + + The contents of the file look like this: SERIAL FLAGS USAGE EXPY PERM UID GID TYPE DESCRIPTION: SUMMARY 00000001 I----- 39 perm 1f3f0000 0 0 keyring _uid_ses.0: 1/4 @@ -300,7 +308,7 @@ about the status of the key service: (*) /proc/key-users This file lists the tracking data for each user that has at least one key - on the system. Such data includes quota information and statistics: + on the system. Such data includes quota information and statistics: [root@andromeda root]# cat /proc/key-users 0: 46 45/45 1/100 13/10000 diff --git a/security/Kconfig b/security/Kconfig index 34f593410d5..67785df264e 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -22,16 +22,22 @@ config KEYS If you are unsure as to whether this is required, answer N. config KEYS_DEBUG_PROC_KEYS - bool "Enable the /proc/keys file by which all keys may be viewed" + bool "Enable the /proc/keys file by which keys may be viewed" depends on KEYS help - This option turns on support for the /proc/keys file through which - all the keys on the system can be listed. + This option turns on support for the /proc/keys file - through which + can be listed all the keys on the system that are viewable by the + reading process. - This option is a slight security risk in that it makes it possible - for anyone to see all the keys on the system. Normally the manager - pretends keys that are inaccessible to a process don't exist as far - as that process is concerned. + The only keys included in the list are those that grant View + permission to the reading process whether or not it possesses them. + Note that LSM security checks are still performed, and may further + filter out keys that the current process is not authorised to view. + + Only key attributes are listed here; key payloads are not included in + the resulting table. + + If you are unsure as to whether this is required, answer N. config SECURITY bool "Enable different security models" diff --git a/security/keys/proc.c b/security/keys/proc.c index 12b750e51fb..686a9ee0c5d 100644 --- a/security/keys/proc.c +++ b/security/keys/proc.c @@ -137,6 +137,13 @@ static int proc_keys_show(struct seq_file *m, void *v) struct timespec now; unsigned long timo; char xbuf[12]; + int rc; + + /* check whether the current task is allowed to view the key (assuming + * non-possession) */ + rc = key_task_permission(make_key_ref(key, 0), current, KEY_VIEW); + if (rc < 0) + return 0; now = current_kernel_time(); -- cgit v1.2.3 From 4eb582cf1fbd7b9e5f466e3718a59c957e75254e Mon Sep 17 00:00:00 2001 From: Michael LeMay Date: Mon, 26 Jun 2006 00:24:57 -0700 Subject: [PATCH] keys: add a way to store the appropriate context for newly-created keys Add a /proc//attr/keycreate entry that stores the appropriate context for newly-created keys. Modify the selinux_key_alloc hook to make use of the new entry. Update the flask headers to include a new "setkeycreate" permission for processes. Update the flask headers to include a new "create" permission for keys. Use the create permission to restrict which SIDs each task can assign to newly-created keys. Add a new parameter to the security hook "security_key_alloc" to indicate whether it is being invoked by the kernel, or from userspace. If it is being invoked by the kernel, the security hook should never fail. Update the documentation to reflect these changes. Signed-off-by: Michael LeMay Signed-off-by: James Morris Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/keys.txt | 27 ++++++++++++--------- fs/proc/base.c | 6 +++++ security/selinux/hooks.c | 35 +++++++++++++++++++++++----- security/selinux/include/av_perm_to_string.h | 2 ++ security/selinux/include/av_permissions.h | 3 ++- security/selinux/include/objsec.h | 1 + 6 files changed, 56 insertions(+), 18 deletions(-) diff --git a/Documentation/keys.txt b/Documentation/keys.txt index 70e83cf664a..61c0fad2fe2 100644 --- a/Documentation/keys.txt +++ b/Documentation/keys.txt @@ -241,25 +241,30 @@ The security class "key" has been added to SELinux so that mandatory access controls can be applied to keys created within various contexts. This support is preliminary, and is likely to change quite significantly in the near future. Currently, all of the basic permissions explained above are provided in SELinux -as well; SE Linux is simply invoked after all basic permission checks have been +as well; SELinux is simply invoked after all basic permission checks have been performed. -Each key is labeled with the same context as the task to which it belongs. -Typically, this is the same task that was running when the key was created. -The default keyrings are handled differently, but in a way that is very -intuitive: +The value of the file /proc/self/attr/keycreate influences the labeling of +newly-created keys. If the contents of that file correspond to an SELinux +security context, then the key will be assigned that context. Otherwise, the +key will be assigned the current context of the task that invoked the key +creation request. Tasks must be granted explicit permission to assign a +particular context to newly-created keys, using the "create" permission in the +key security class. - (*) The user and user session keyrings that are created when the user logs in - are currently labeled with the context of the login manager. - - (*) The keyrings associated with new threads are each labeled with the context - of their associated thread, and both session and process keyrings are - handled similarly. +The default keyrings associated with users will be labeled with the default +context of the user if and only if the login programs have been instrumented to +properly initialize keycreate during the login process. Otherwise, they will +be labeled with the context of the login program itself. Note, however, that the default keyrings associated with the root user are labeled with the default kernel context, since they are created early in the boot process, before root has a chance to log in. +The keyrings associated with new threads are each labeled with the context of +their associated thread, and both session and process keyrings are handled +similarly. + ================ NEW PROCFS FILES diff --git a/fs/proc/base.c b/fs/proc/base.c index 6afff725a8c..c4a1ff371b8 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -121,6 +121,7 @@ enum pid_directory_inos { PROC_TGID_ATTR_PREV, PROC_TGID_ATTR_EXEC, PROC_TGID_ATTR_FSCREATE, + PROC_TGID_ATTR_KEYCREATE, #endif #ifdef CONFIG_AUDITSYSCALL PROC_TGID_LOGINUID, @@ -162,6 +163,7 @@ enum pid_directory_inos { PROC_TID_ATTR_PREV, PROC_TID_ATTR_EXEC, PROC_TID_ATTR_FSCREATE, + PROC_TID_ATTR_KEYCREATE, #endif #ifdef CONFIG_AUDITSYSCALL PROC_TID_LOGINUID, @@ -275,6 +277,7 @@ static struct pid_entry tgid_attr_stuff[] = { E(PROC_TGID_ATTR_PREV, "prev", S_IFREG|S_IRUGO), E(PROC_TGID_ATTR_EXEC, "exec", S_IFREG|S_IRUGO|S_IWUGO), E(PROC_TGID_ATTR_FSCREATE, "fscreate", S_IFREG|S_IRUGO|S_IWUGO), + E(PROC_TGID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO), {0,0,NULL,0} }; static struct pid_entry tid_attr_stuff[] = { @@ -282,6 +285,7 @@ static struct pid_entry tid_attr_stuff[] = { E(PROC_TID_ATTR_PREV, "prev", S_IFREG|S_IRUGO), E(PROC_TID_ATTR_EXEC, "exec", S_IFREG|S_IRUGO|S_IWUGO), E(PROC_TID_ATTR_FSCREATE, "fscreate", S_IFREG|S_IRUGO|S_IWUGO), + E(PROC_TID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO), {0,0,NULL,0} }; #endif @@ -1801,6 +1805,8 @@ static struct dentry *proc_pident_lookup(struct inode *dir, case PROC_TGID_ATTR_EXEC: case PROC_TID_ATTR_FSCREATE: case PROC_TGID_ATTR_FSCREATE: + case PROC_TID_ATTR_KEYCREATE: + case PROC_TGID_ATTR_KEYCREATE: inode->i_fop = &proc_pid_attr_operations; break; #endif diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 13384fef0d6..0d8b27513bd 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1099,6 +1099,17 @@ static int may_create(struct inode *dir, FILESYSTEM__ASSOCIATE, &ad); } +/* Check whether a task can create a key. */ +static int may_create_key(u32 ksid, + struct task_struct *ctx) +{ + struct task_security_struct *tsec; + + tsec = ctx->security; + + return avc_has_perm(tsec->sid, ksid, SECCLASS_KEY, KEY__CREATE, NULL); +} + #define MAY_LINK 0 #define MAY_UNLINK 1 #define MAY_RMDIR 2 @@ -4150,6 +4161,8 @@ static int selinux_getprocattr(struct task_struct *p, sid = tsec->exec_sid; else if (!strcmp(name, "fscreate")) sid = tsec->create_sid; + else if (!strcmp(name, "keycreate")) + sid = tsec->keycreate_sid; else return -EINVAL; @@ -4182,6 +4195,8 @@ static int selinux_setprocattr(struct task_struct *p, error = task_has_perm(current, p, PROCESS__SETEXEC); else if (!strcmp(name, "fscreate")) error = task_has_perm(current, p, PROCESS__SETFSCREATE); + else if (!strcmp(name, "keycreate")) + error = task_has_perm(current, p, PROCESS__SETKEYCREATE); else if (!strcmp(name, "current")) error = task_has_perm(current, p, PROCESS__SETCURRENT); else @@ -4211,7 +4226,12 @@ static int selinux_setprocattr(struct task_struct *p, tsec->exec_sid = sid; else if (!strcmp(name, "fscreate")) tsec->create_sid = sid; - else if (!strcmp(name, "current")) { + else if (!strcmp(name, "keycreate")) { + error = may_create_key(sid, p); + if (error) + return error; + tsec->keycreate_sid = sid; + } else if (!strcmp(name, "current")) { struct av_decision avd; if (sid == 0) @@ -4275,7 +4295,10 @@ static int selinux_key_alloc(struct key *k, struct task_struct *tsk, return -ENOMEM; ksec->obj = k; - ksec->sid = tsec->sid; + if (tsec->keycreate_sid) + ksec->sid = tsec->keycreate_sid; + else + ksec->sid = tsec->sid; k->security = ksec; return 0; @@ -4514,10 +4537,10 @@ static __init int selinux_init(void) #ifdef CONFIG_KEYS /* Add security information to initial keyrings */ - security_key_alloc(&root_user_keyring, current, - KEY_ALLOC_NOT_IN_QUOTA); - security_key_alloc(&root_session_keyring, current, - KEY_ALLOC_NOT_IN_QUOTA); + selinux_key_alloc(&root_user_keyring, current, + KEY_ALLOC_NOT_IN_QUOTA); + selinux_key_alloc(&root_session_keyring, current, + KEY_ALLOC_NOT_IN_QUOTA); #endif return 0; diff --git a/security/selinux/include/av_perm_to_string.h b/security/selinux/include/av_perm_to_string.h index bc020bde6c8..e777578ccd9 100644 --- a/security/selinux/include/av_perm_to_string.h +++ b/security/selinux/include/av_perm_to_string.h @@ -72,6 +72,7 @@ S_(SECCLASS_PROCESS, PROCESS__EXECMEM, "execmem") S_(SECCLASS_PROCESS, PROCESS__EXECSTACK, "execstack") S_(SECCLASS_PROCESS, PROCESS__EXECHEAP, "execheap") + S_(SECCLASS_PROCESS, PROCESS__SETKEYCREATE, "setkeycreate") S_(SECCLASS_MSGQ, MSGQ__ENQUEUE, "enqueue") S_(SECCLASS_MSG, MSG__SEND, "send") S_(SECCLASS_MSG, MSG__RECEIVE, "receive") @@ -248,3 +249,4 @@ S_(SECCLASS_KEY, KEY__SEARCH, "search") S_(SECCLASS_KEY, KEY__LINK, "link") S_(SECCLASS_KEY, KEY__SETATTR, "setattr") + S_(SECCLASS_KEY, KEY__CREATE, "create") diff --git a/security/selinux/include/av_permissions.h b/security/selinux/include/av_permissions.h index 1205227a3a3..1e1678023b6 100644 --- a/security/selinux/include/av_permissions.h +++ b/security/selinux/include/av_permissions.h @@ -467,6 +467,7 @@ #define PROCESS__EXECMEM 0x02000000UL #define PROCESS__EXECSTACK 0x04000000UL #define PROCESS__EXECHEAP 0x08000000UL +#define PROCESS__SETKEYCREATE 0x10000000UL #define IPC__CREATE 0x00000001UL #define IPC__DESTROY 0x00000002UL @@ -966,4 +967,4 @@ #define KEY__SEARCH 0x00000008UL #define KEY__LINK 0x00000010UL #define KEY__SETATTR 0x00000020UL - +#define KEY__CREATE 0x00000040UL diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h index 8f5547ad185..191b3e4484c 100644 --- a/security/selinux/include/objsec.h +++ b/security/selinux/include/objsec.h @@ -32,6 +32,7 @@ struct task_security_struct { u32 sid; /* current SID */ u32 exec_sid; /* exec SID */ u32 create_sid; /* fscreate SID */ + u32 keycreate_sid; /* keycreate SID */ u32 ptrace_sid; /* SID of ptrace parent */ }; -- cgit v1.2.3 From 9637f28f8b9facff53b00bea6b5d27c9b150b422 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Mon, 26 Jun 2006 00:24:57 -0700 Subject: [PATCH] reiserfs: remove reiserfs_aio_write() Signed-off-by: Alexey Dobriyan Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/reiserfs/file.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index cf6e1cf4035..752cea12e30 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -1560,12 +1560,6 @@ static ssize_t reiserfs_file_write(struct file *file, /* the file we are going t return res; } -static ssize_t reiserfs_aio_write(struct kiocb *iocb, const char __user * buf, - size_t count, loff_t pos) -{ - return generic_file_aio_write(iocb, buf, count, pos); -} - const struct file_operations reiserfs_file_operations = { .read = generic_file_read, .write = reiserfs_file_write, @@ -1575,7 +1569,7 @@ const struct file_operations reiserfs_file_operations = { .fsync = reiserfs_sync_file, .sendfile = generic_file_sendfile, .aio_read = generic_file_aio_read, - .aio_write = reiserfs_aio_write, + .aio_write = generic_file_aio_write, .splice_read = generic_file_splice_read, .splice_write = generic_file_splice_write, }; -- cgit v1.2.3 From 59f5d35f83738bf07e66f8cdcff32a433df804a3 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:24:58 -0700 Subject: [PATCH] Remove old HW RNG support This patch series replaces the old non-generic Hardware Random Number Generator support by a fully generic RNG API. This makes it possible to register additional RNGs from modules. With this patch series applied, Laptops with a bcm43xx chip (PowerBook) have a HW RNG available now. Additionally two new RNG drivers are added for the "ixp4xx" and "omap" devices. (Written by Deepak Saxena). This patch series includes the old patches by Deepak Saxena. The old x86-rng driver has beed split. The userspace RNG daemon can later be updated to select the RNG through /sys/class/misc/hw_random/ for convenience. For now it is sufficient to use cat and echo -n on the sysfs attributes. Signed-off-by: Michael Buesch Acked-by: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/Kconfig | 15 - drivers/char/Makefile | 1 - drivers/char/hw_random.c | 698 ----------------------------------------------- 3 files changed, 714 deletions(-) delete mode 100644 drivers/char/hw_random.c diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 63f28d169b3..e4b44c68ad0 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -670,21 +670,6 @@ config NWFLASH If you're not sure, say N. -config HW_RANDOM - tristate "Intel/AMD/VIA HW Random Number Generator support" - depends on (X86 || IA64) && PCI - ---help--- - This driver provides kernel-side support for the Random Number - Generator hardware found on Intel i8xx-based motherboards, - AMD 76x-based motherboards, and Via Nehemiah CPUs. - - Provides a character driver, used to read() entropy data. - - To compile this driver as a module, choose M here: the - module will be called hw_random. - - If unsure, say N. - config NVRAM tristate "/dev/nvram support" depends on ATARI || X86 || ARM || GENERIC_NVRAM diff --git a/drivers/char/Makefile b/drivers/char/Makefile index fb919bfb282..79aecef93b6 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -75,7 +75,6 @@ endif obj-$(CONFIG_TOSHIBA) += toshiba.o obj-$(CONFIG_I8K) += i8k.o obj-$(CONFIG_DS1620) += ds1620.o -obj-$(CONFIG_HW_RANDOM) += hw_random.o obj-$(CONFIG_FTAPE) += ftape/ obj-$(CONFIG_COBALT_LCD) += lcd.o obj-$(CONFIG_PPDEV) += ppdev.o diff --git a/drivers/char/hw_random.c b/drivers/char/hw_random.c deleted file mode 100644 index 29dc87e5902..00000000000 --- a/drivers/char/hw_random.c +++ /dev/null @@ -1,698 +0,0 @@ -/* - Added support for the AMD Geode LX RNG - (c) Copyright 2004-2005 Advanced Micro Devices, Inc. - - derived from - - Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG) - (c) Copyright 2003 Red Hat Inc - - derived from - - Hardware driver for the AMD 768 Random Number Generator (RNG) - (c) Copyright 2001 Red Hat Inc - - derived from - - Hardware driver for Intel i810 Random Number Generator (RNG) - Copyright 2000,2001 Jeff Garzik - Copyright 2000,2001 Philipp Rumpf - - Please read Documentation/hw_random.txt for details on use. - - ---------------------------------------------------------- - This software may be used and distributed according to the terms - of the GNU General Public License, incorporated herein by reference. - - */ - - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef __i386__ -#include -#include -#endif - -#include -#include - - -/* - * core module and version information - */ -#define RNG_VERSION "1.0.0" -#define RNG_MODULE_NAME "hw_random" -#define RNG_DRIVER_NAME RNG_MODULE_NAME " hardware driver " RNG_VERSION -#define PFX RNG_MODULE_NAME ": " - - -/* - * debugging macros - */ - -/* pr_debug() collapses to a no-op if DEBUG is not defined */ -#define DPRINTK(fmt, args...) pr_debug(PFX "%s: " fmt, __FUNCTION__ , ## args) - - -#undef RNG_NDEBUG /* define to enable lightweight runtime checks */ -#ifdef RNG_NDEBUG -#define assert(expr) \ - if(!(expr)) { \ - printk(KERN_DEBUG PFX "Assertion failed! %s,%s,%s," \ - "line=%d\n", #expr, __FILE__, __FUNCTION__, __LINE__); \ - } -#else -#define assert(expr) -#endif - -#define RNG_MISCDEV_MINOR 183 /* official */ - -static int rng_dev_open (struct inode *inode, struct file *filp); -static ssize_t rng_dev_read (struct file *filp, char __user *buf, size_t size, - loff_t * offp); - -static int __init intel_init (struct pci_dev *dev); -static void intel_cleanup(void); -static unsigned int intel_data_present (void); -static u32 intel_data_read (void); - -static int __init amd_init (struct pci_dev *dev); -static void amd_cleanup(void); -static unsigned int amd_data_present (void); -static u32 amd_data_read (void); - -#ifdef __i386__ -static int __init via_init(struct pci_dev *dev); -static void via_cleanup(void); -static unsigned int via_data_present (void); -static u32 via_data_read (void); -#endif - -static int __init geode_init(struct pci_dev *dev); -static void geode_cleanup(void); -static unsigned int geode_data_present (void); -static u32 geode_data_read (void); - -struct rng_operations { - int (*init) (struct pci_dev *dev); - void (*cleanup) (void); - unsigned int (*data_present) (void); - u32 (*data_read) (void); - unsigned int n_bytes; /* number of bytes per ->data_read */ -}; -static struct rng_operations *rng_ops; - -static struct file_operations rng_chrdev_ops = { - .owner = THIS_MODULE, - .open = rng_dev_open, - .read = rng_dev_read, -}; - - -static struct miscdevice rng_miscdev = { - RNG_MISCDEV_MINOR, - RNG_MODULE_NAME, - &rng_chrdev_ops, -}; - -enum { - rng_hw_none, - rng_hw_intel, - rng_hw_amd, -#ifdef __i386__ - rng_hw_via, -#endif - rng_hw_geode, -}; - -static struct rng_operations rng_vendor_ops[] = { - /* rng_hw_none */ - { }, - - /* rng_hw_intel */ - { intel_init, intel_cleanup, intel_data_present, - intel_data_read, 1 }, - - /* rng_hw_amd */ - { amd_init, amd_cleanup, amd_data_present, amd_data_read, 4 }, - -#ifdef __i386__ - /* rng_hw_via */ - { via_init, via_cleanup, via_data_present, via_data_read, 1 }, -#endif - - /* rng_hw_geode */ - { geode_init, geode_cleanup, geode_data_present, geode_data_read, 4 } -}; - -/* - * Data for PCI driver interface - * - * This data only exists for exporting the supported - * PCI ids via MODULE_DEVICE_TABLE. We do not actually - * register a pci_driver, because someone else might one day - * want to register another driver on the same PCI id. - */ -static struct pci_device_id rng_pci_tbl[] = { - { 0x1022, 0x7443, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_amd }, - { 0x1022, 0x746b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_amd }, - - { 0x8086, 0x2418, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, - { 0x8086, 0x2428, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, - { 0x8086, 0x2430, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, - { 0x8086, 0x2448, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, - { 0x8086, 0x244e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, - { 0x8086, 0x245e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, - - { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_AES, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_geode }, - - { 0, }, /* terminate list */ -}; -MODULE_DEVICE_TABLE (pci, rng_pci_tbl); - - -/*********************************************************************** - * - * Intel RNG operations - * - */ - -/* - * RNG registers (offsets from rng_mem) - */ -#define INTEL_RNG_HW_STATUS 0 -#define INTEL_RNG_PRESENT 0x40 -#define INTEL_RNG_ENABLED 0x01 -#define INTEL_RNG_STATUS 1 -#define INTEL_RNG_DATA_PRESENT 0x01 -#define INTEL_RNG_DATA 2 - -/* - * Magic address at which Intel PCI bridges locate the RNG - */ -#define INTEL_RNG_ADDR 0xFFBC015F -#define INTEL_RNG_ADDR_LEN 3 - -/* token to our ioremap'd RNG register area */ -static void __iomem *rng_mem; - -static inline u8 intel_hwstatus (void) -{ - assert (rng_mem != NULL); - return readb (rng_mem + INTEL_RNG_HW_STATUS); -} - -static inline u8 intel_hwstatus_set (u8 hw_status) -{ - assert (rng_mem != NULL); - writeb (hw_status, rng_mem + INTEL_RNG_HW_STATUS); - return intel_hwstatus (); -} - -static unsigned int intel_data_present(void) -{ - assert (rng_mem != NULL); - - return (readb (rng_mem + INTEL_RNG_STATUS) & INTEL_RNG_DATA_PRESENT) ? - 1 : 0; -} - -static u32 intel_data_read(void) -{ - assert (rng_mem != NULL); - - return readb (rng_mem + INTEL_RNG_DATA); -} - -static int __init intel_init (struct pci_dev *dev) -{ - int rc; - u8 hw_status; - - DPRINTK ("ENTER\n"); - - rng_mem = ioremap (INTEL_RNG_ADDR, INTEL_RNG_ADDR_LEN); - if (rng_mem == NULL) { - printk (KERN_ERR PFX "cannot ioremap RNG Memory\n"); - rc = -EBUSY; - goto err_out; - } - - /* Check for Intel 82802 */ - hw_status = intel_hwstatus (); - if ((hw_status & INTEL_RNG_PRESENT) == 0) { - printk (KERN_ERR PFX "RNG not detected\n"); - rc = -ENODEV; - goto err_out_free_map; - } - - /* turn RNG h/w on, if it's off */ - if ((hw_status & INTEL_RNG_ENABLED) == 0) - hw_status = intel_hwstatus_set (hw_status | INTEL_RNG_ENABLED); - if ((hw_status & INTEL_RNG_ENABLED) == 0) { - printk (KERN_ERR PFX "cannot enable RNG, aborting\n"); - rc = -EIO; - goto err_out_free_map; - } - - DPRINTK ("EXIT, returning 0\n"); - return 0; - -err_out_free_map: - iounmap (rng_mem); - rng_mem = NULL; -err_out: - DPRINTK ("EXIT, returning %d\n", rc); - return rc; -} - -static void intel_cleanup(void) -{ - u8 hw_status; - - hw_status = intel_hwstatus (); - if (hw_status & INTEL_RNG_ENABLED) - intel_hwstatus_set (hw_status & ~INTEL_RNG_ENABLED); - else - printk(KERN_WARNING PFX "unusual: RNG already disabled\n"); - iounmap(rng_mem); - rng_mem = NULL; -} - -/*********************************************************************** - * - * AMD RNG operations - * - */ - -static u32 pmbase; /* PMxx I/O base */ -static struct pci_dev *amd_dev; - -static unsigned int amd_data_present (void) -{ - return inl(pmbase + 0xF4) & 1; -} - - -static u32 amd_data_read (void) -{ - return inl(pmbase + 0xF0); -} - -static int __init amd_init (struct pci_dev *dev) -{ - int rc; - u8 rnen; - - DPRINTK ("ENTER\n"); - - pci_read_config_dword(dev, 0x58, &pmbase); - - pmbase &= 0x0000FF00; - - if (pmbase == 0) - { - printk (KERN_ERR PFX "power management base not set\n"); - rc = -EIO; - goto err_out; - } - - pci_read_config_byte(dev, 0x40, &rnen); - rnen |= (1 << 7); /* RNG on */ - pci_write_config_byte(dev, 0x40, rnen); - - pci_read_config_byte(dev, 0x41, &rnen); - rnen |= (1 << 7); /* PMIO enable */ - pci_write_config_byte(dev, 0x41, rnen); - - pr_info( PFX "AMD768 system management I/O registers at 0x%X.\n", - pmbase); - - amd_dev = dev; - - DPRINTK ("EXIT, returning 0\n"); - return 0; - -err_out: - DPRINTK ("EXIT, returning %d\n", rc); - return rc; -} - -static void amd_cleanup(void) -{ - u8 rnen; - - pci_read_config_byte(amd_dev, 0x40, &rnen); - rnen &= ~(1 << 7); /* RNG off */ - pci_write_config_byte(amd_dev, 0x40, rnen); - - /* FIXME: twiddle pmio, also? */ -} - -#ifdef __i386__ -/*********************************************************************** - * - * VIA RNG operations - * - */ - -enum { - VIA_STRFILT_CNT_SHIFT = 16, - VIA_STRFILT_FAIL = (1 << 15), - VIA_STRFILT_ENABLE = (1 << 14), - VIA_RAWBITS_ENABLE = (1 << 13), - VIA_RNG_ENABLE = (1 << 6), - VIA_XSTORE_CNT_MASK = 0x0F, - - VIA_RNG_CHUNK_8 = 0x00, /* 64 rand bits, 64 stored bits */ - VIA_RNG_CHUNK_4 = 0x01, /* 32 rand bits, 32 stored bits */ - VIA_RNG_CHUNK_4_MASK = 0xFFFFFFFF, - VIA_RNG_CHUNK_2 = 0x02, /* 16 rand bits, 32 stored bits */ - VIA_RNG_CHUNK_2_MASK = 0xFFFF, - VIA_RNG_CHUNK_1 = 0x03, /* 8 rand bits, 32 stored bits */ - VIA_RNG_CHUNK_1_MASK = 0xFF, -}; - -static u32 via_rng_datum; - -/* - * Investigate using the 'rep' prefix to obtain 32 bits of random data - * in one insn. The upside is potentially better performance. The - * downside is that the instruction becomes no longer atomic. Due to - * this, just like familiar issues with /dev/random itself, the worst - * case of a 'rep xstore' could potentially pause a cpu for an - * unreasonably long time. In practice, this condition would likely - * only occur when the hardware is failing. (or so we hope :)) - * - * Another possible performance boost may come from simply buffering - * until we have 4 bytes, thus returning a u32 at a time, - * instead of the current u8-at-a-time. - */ - -static inline u32 xstore(u32 *addr, u32 edx_in) -{ - u32 eax_out; - - asm(".byte 0x0F,0xA7,0xC0 /* xstore %%edi (addr=%0) */" - :"=m"(*addr), "=a"(eax_out) - :"D"(addr), "d"(edx_in)); - - return eax_out; -} - -static unsigned int via_data_present(void) -{ - u32 bytes_out; - - /* We choose the recommended 1-byte-per-instruction RNG rate, - * for greater randomness at the expense of speed. Larger - * values 2, 4, or 8 bytes-per-instruction yield greater - * speed at lesser randomness. - * - * If you change this to another VIA_CHUNK_n, you must also - * change the ->n_bytes values in rng_vendor_ops[] tables. - * VIA_CHUNK_8 requires further code changes. - * - * A copy of MSR_VIA_RNG is placed in eax_out when xstore - * completes. - */ - via_rng_datum = 0; /* paranoia, not really necessary */ - bytes_out = xstore(&via_rng_datum, VIA_RNG_CHUNK_1) & VIA_XSTORE_CNT_MASK; - if (bytes_out == 0) - return 0; - - return 1; -} - -static u32 via_data_read(void) -{ - return via_rng_datum; -} - -static int __init via_init(struct pci_dev *dev) -{ - u32 lo, hi, old_lo; - - /* Control the RNG via MSR. Tread lightly and pay very close - * close attention to values written, as the reserved fields - * are documented to be "undefined and unpredictable"; but it - * does not say to write them as zero, so I make a guess that - * we restore the values we find in the register. - */ - rdmsr(MSR_VIA_RNG, lo, hi); - - old_lo = lo; - lo &= ~(0x7f << VIA_STRFILT_CNT_SHIFT); - lo &= ~VIA_XSTORE_CNT_MASK; - lo &= ~(VIA_STRFILT_ENABLE | VIA_STRFILT_FAIL | VIA_RAWBITS_ENABLE); - lo |= VIA_RNG_ENABLE; - - if (lo != old_lo) - wrmsr(MSR_VIA_RNG, lo, hi); - - /* perhaps-unnecessary sanity check; remove after testing if - unneeded */ - rdmsr(MSR_VIA_RNG, lo, hi); - if ((lo & VIA_RNG_ENABLE) == 0) { - printk(KERN_ERR PFX "cannot enable VIA C3 RNG, aborting\n"); - return -ENODEV; - } - - return 0; -} - -static void via_cleanup(void) -{ - /* do nothing */ -} -#endif - -/*********************************************************************** - * - * AMD Geode RNG operations - * - */ - -static void __iomem *geode_rng_base = NULL; - -#define GEODE_RNG_DATA_REG 0x50 -#define GEODE_RNG_STATUS_REG 0x54 - -static u32 geode_data_read(void) -{ - u32 val; - - assert(geode_rng_base != NULL); - val = readl(geode_rng_base + GEODE_RNG_DATA_REG); - return val; -} - -static unsigned int geode_data_present(void) -{ - u32 val; - - assert(geode_rng_base != NULL); - val = readl(geode_rng_base + GEODE_RNG_STATUS_REG); - return val; -} - -static void geode_cleanup(void) -{ - iounmap(geode_rng_base); - geode_rng_base = NULL; -} - -static int geode_init(struct pci_dev *dev) -{ - unsigned long rng_base = pci_resource_start(dev, 0); - - if (rng_base == 0) - return 1; - - geode_rng_base = ioremap(rng_base, 0x58); - - if (geode_rng_base == NULL) { - printk(KERN_ERR PFX "Cannot ioremap RNG memory\n"); - return -EBUSY; - } - - return 0; -} - -/*********************************************************************** - * - * /dev/hwrandom character device handling (major 10, minor 183) - * - */ - -static int rng_dev_open (struct inode *inode, struct file *filp) -{ - /* enforce read-only access to this chrdev */ - if ((filp->f_mode & FMODE_READ) == 0) - return -EINVAL; - if (filp->f_mode & FMODE_WRITE) - return -EINVAL; - - return 0; -} - - -static ssize_t rng_dev_read (struct file *filp, char __user *buf, size_t size, - loff_t * offp) -{ - static DEFINE_SPINLOCK(rng_lock); - unsigned int have_data; - u32 data = 0; - ssize_t ret = 0; - - while (size) { - spin_lock(&rng_lock); - - have_data = 0; - if (rng_ops->data_present()) { - data = rng_ops->data_read(); - have_data = rng_ops->n_bytes; - } - - spin_unlock (&rng_lock); - - while (have_data && size) { - if (put_user((u8)data, buf++)) { - ret = ret ? : -EFAULT; - break; - } - size--; - ret++; - have_data--; - data>>=8; - } - - if (filp->f_flags & O_NONBLOCK) - return ret ? : -EAGAIN; - - if(need_resched()) - schedule_timeout_interruptible(1); - else - udelay(200); /* FIXME: We could poll for 250uS ?? */ - - if (signal_pending (current)) - return ret ? : -ERESTARTSYS; - } - return ret; -} - - - -/* - * rng_init_one - look for and attempt to init a single RNG - */ -static int __init rng_init_one (struct pci_dev *dev) -{ - int rc; - - DPRINTK ("ENTER\n"); - - assert(rng_ops != NULL); - - rc = rng_ops->init(dev); - if (rc) - goto err_out; - - rc = misc_register (&rng_miscdev); - if (rc) { - printk (KERN_ERR PFX "misc device register failed\n"); - goto err_out_cleanup_hw; - } - - DPRINTK ("EXIT, returning 0\n"); - return 0; - -err_out_cleanup_hw: - rng_ops->cleanup(); -err_out: - DPRINTK ("EXIT, returning %d\n", rc); - return rc; -} - - - -MODULE_AUTHOR("The Linux Kernel team"); -MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver"); -MODULE_LICENSE("GPL"); - - -/* - * rng_init - initialize RNG module - */ -static int __init rng_init (void) -{ - int rc; - struct pci_dev *pdev = NULL; - const struct pci_device_id *ent; - - DPRINTK ("ENTER\n"); - - /* Probe for Intel, AMD, Geode RNGs */ - for_each_pci_dev(pdev) { - ent = pci_match_id(rng_pci_tbl, pdev); - if (ent) { - rng_ops = &rng_vendor_ops[ent->driver_data]; - goto match; - } - } - -#ifdef __i386__ - /* Probe for VIA RNG */ - if (cpu_has_xstore) { - rng_ops = &rng_vendor_ops[rng_hw_via]; - pdev = NULL; - goto match; - } -#endif - - DPRINTK ("EXIT, returning -ENODEV\n"); - return -ENODEV; - -match: - rc = rng_init_one (pdev); - if (rc) - return rc; - - pr_info( RNG_DRIVER_NAME " loaded\n"); - - DPRINTK ("EXIT, returning 0\n"); - return 0; -} - - -/* - * rng_init - shutdown RNG module - */ -static void __exit rng_cleanup (void) -{ - DPRINTK ("ENTER\n"); - - misc_deregister (&rng_miscdev); - - if (rng_ops->cleanup) - rng_ops->cleanup(); - - DPRINTK ("EXIT\n"); -} - - -module_init (rng_init); -module_exit (rng_cleanup); -- cgit v1.2.3 From 844dd05fec172d98b0dacecd9b9e9f6595204c13 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:24:59 -0700 Subject: [PATCH] Add new generic HW RNG core Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- MAINTAINERS | 15 ++ drivers/char/Kconfig | 2 + drivers/char/Makefile | 1 + drivers/char/hw_random/Kconfig | 11 ++ drivers/char/hw_random/Makefile | 5 + drivers/char/hw_random/core.c | 354 ++++++++++++++++++++++++++++++++++++++++ include/linux/hw_random.h | 50 ++++++ 7 files changed, 438 insertions(+) create mode 100644 drivers/char/hw_random/Kconfig create mode 100644 drivers/char/hw_random/Makefile create mode 100644 drivers/char/hw_random/core.c create mode 100644 include/linux/hw_random.h diff --git a/MAINTAINERS b/MAINTAINERS index 4dcd2f1f14d..28c0a967692 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1118,6 +1118,11 @@ L: lm-sensors@lm-sensors.org W: http://www.lm-sensors.nu/ S: Maintained +HARDWARE RANDOM NUMBER GENERATOR CORE +P: Michael Buesch +M: mb@bu3sch.de +S: Maintained + HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER P: Robert Love M: rlove@rlove.org @@ -1436,6 +1441,11 @@ P: Tigran Aivazian M: tigran@veritas.com S: Maintained +INTEL IXP4XX RANDOM NUMBER GENERATOR SUPPORT +P: Deepak Saxena +M: dsaxena@plexity.net +S: Maintained + INTEL PRO/100 ETHERNET SUPPORT P: John Ronciak M: john.ronciak@intel.com @@ -2725,6 +2735,11 @@ P: Christoph Hellwig M: hch@infradead.org S: Maintained +TI OMAP RANDOM NUMBER GENERATOR SUPPORT +P: Deepak Saxena +M: dsaxena@plexity.net +S: Maintained + TI PARALLEL LINK CABLE DRIVER P: Romain Lievin M: roms@lpg.ticalc.org diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index e4b44c68ad0..ed31638bd75 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -670,6 +670,8 @@ config NWFLASH If you're not sure, say N. +source "drivers/char/hw_random/Kconfig" + config NVRAM tristate "/dev/nvram support" depends on ATARI || X86 || ARM || GENERIC_NVRAM diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 79aecef93b6..524105597ea 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -75,6 +75,7 @@ endif obj-$(CONFIG_TOSHIBA) += toshiba.o obj-$(CONFIG_I8K) += i8k.o obj-$(CONFIG_DS1620) += ds1620.o +obj-$(CONFIG_HW_RANDOM) += hw_random/ obj-$(CONFIG_FTAPE) += ftape/ obj-$(CONFIG_COBALT_LCD) += lcd.o obj-$(CONFIG_PPDEV) += ppdev.o diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig new file mode 100644 index 00000000000..fa4a245127a --- /dev/null +++ b/drivers/char/hw_random/Kconfig @@ -0,0 +1,11 @@ +# +# Hardware Random Number Generator (RNG) configuration +# + +config HW_RANDOM + bool "Hardware Random Number Generator Core support" + default y + ---help--- + Hardware Random Number Generator Core infrastructure. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile new file mode 100644 index 00000000000..aa752af468c --- /dev/null +++ b/drivers/char/hw_random/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for HW Random Number Generator (RNG) device drivers. +# + +obj-$(CONFIG_HW_RANDOM) += core.o diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c new file mode 100644 index 00000000000..88b026639f1 --- /dev/null +++ b/drivers/char/hw_random/core.c @@ -0,0 +1,354 @@ +/* + Added support for the AMD Geode LX RNG + (c) Copyright 2004-2005 Advanced Micro Devices, Inc. + + derived from + + Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG) + (c) Copyright 2003 Red Hat Inc + + derived from + + Hardware driver for the AMD 768 Random Number Generator (RNG) + (c) Copyright 2001 Red Hat Inc + + derived from + + Hardware driver for Intel i810 Random Number Generator (RNG) + Copyright 2000,2001 Jeff Garzik + Copyright 2000,2001 Philipp Rumpf + + Added generic RNG API + Copyright 2006 Michael Buesch + Copyright 2005 (c) MontaVista Software, Inc. + + Please read Documentation/hw_random.txt for details on use. + + ---------------------------------------------------------- + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +#define RNG_MODULE_NAME "hw_random" +#define PFX RNG_MODULE_NAME ": " +#define RNG_MISCDEV_MINOR 183 /* official */ + + +static struct hwrng *current_rng; +static LIST_HEAD(rng_list); +static DEFINE_MUTEX(rng_mutex); + + +static inline int hwrng_init(struct hwrng *rng) +{ + if (!rng->init) + return 0; + return rng->init(rng); +} + +static inline void hwrng_cleanup(struct hwrng *rng) +{ + if (rng && rng->cleanup) + rng->cleanup(rng); +} + +static inline int hwrng_data_present(struct hwrng *rng) +{ + if (!rng->data_present) + return 1; + return rng->data_present(rng); +} + +static inline int hwrng_data_read(struct hwrng *rng, u32 *data) +{ + return rng->data_read(rng, data); +} + + +static int rng_dev_open(struct inode *inode, struct file *filp) +{ + /* enforce read-only access to this chrdev */ + if ((filp->f_mode & FMODE_READ) == 0) + return -EINVAL; + if (filp->f_mode & FMODE_WRITE) + return -EINVAL; + return 0; +} + +static ssize_t rng_dev_read(struct file *filp, char __user *buf, + size_t size, loff_t *offp) +{ + u32 data; + ssize_t ret = 0; + int i, err = 0; + int data_present; + int bytes_read; + + while (size) { + err = -ERESTARTSYS; + if (mutex_lock_interruptible(&rng_mutex)) + goto out; + if (!current_rng) { + mutex_unlock(&rng_mutex); + err = -ENODEV; + goto out; + } + if (filp->f_flags & O_NONBLOCK) { + data_present = hwrng_data_present(current_rng); + } else { + /* Some RNG require some time between data_reads to gather + * new entropy. Poll it. + */ + for (i = 0; i < 20; i++) { + data_present = hwrng_data_present(current_rng); + if (data_present) + break; + udelay(10); + } + } + bytes_read = 0; + if (data_present) + bytes_read = hwrng_data_read(current_rng, &data); + mutex_unlock(&rng_mutex); + + err = -EAGAIN; + if (!bytes_read && (filp->f_flags & O_NONBLOCK)) + goto out; + + err = -EFAULT; + while (bytes_read && size) { + if (put_user((u8)data, buf++)) + goto out; + size--; + ret++; + bytes_read--; + data >>= 8; + } + + if (need_resched()) + schedule_timeout_interruptible(1); + err = -ERESTARTSYS; + if (signal_pending(current)) + goto out; + } +out: + return ret ? : err; +} + + +static struct file_operations rng_chrdev_ops = { + .owner = THIS_MODULE, + .open = rng_dev_open, + .read = rng_dev_read, +}; + +static struct miscdevice rng_miscdev = { + .minor = RNG_MISCDEV_MINOR, + .name = RNG_MODULE_NAME, + .fops = &rng_chrdev_ops, +}; + + +static ssize_t hwrng_attr_current_store(struct class_device *class, + const char *buf, size_t len) +{ + int err; + struct hwrng *rng; + + err = mutex_lock_interruptible(&rng_mutex); + if (err) + return -ERESTARTSYS; + err = -ENODEV; + list_for_each_entry(rng, &rng_list, list) { + if (strcmp(rng->name, buf) == 0) { + if (rng == current_rng) { + err = 0; + break; + } + err = hwrng_init(rng); + if (err) + break; + hwrng_cleanup(current_rng); + current_rng = rng; + err = 0; + break; + } + } + mutex_unlock(&rng_mutex); + + return err ? : len; +} + +static ssize_t hwrng_attr_current_show(struct class_device *class, + char *buf) +{ + int err; + ssize_t ret; + const char *name = "none"; + + err = mutex_lock_interruptible(&rng_mutex); + if (err) + return -ERESTARTSYS; + if (current_rng) + name = current_rng->name; + ret = snprintf(buf, PAGE_SIZE, "%s\n", name); + mutex_unlock(&rng_mutex); + + return ret; +} + +static ssize_t hwrng_attr_available_show(struct class_device *class, + char *buf) +{ + int err; + ssize_t ret = 0; + struct hwrng *rng; + + err = mutex_lock_interruptible(&rng_mutex); + if (err) + return -ERESTARTSYS; + buf[0] = '\0'; + list_for_each_entry(rng, &rng_list, list) { + strncat(buf, rng->name, PAGE_SIZE - ret - 1); + ret += strlen(rng->name); + strncat(buf, " ", PAGE_SIZE - ret - 1); + ret++; + } + strncat(buf, "\n", PAGE_SIZE - ret - 1); + ret++; + mutex_unlock(&rng_mutex); + + return ret; +} + +static CLASS_DEVICE_ATTR(rng_current, S_IRUGO | S_IWUSR, + hwrng_attr_current_show, + hwrng_attr_current_store); +static CLASS_DEVICE_ATTR(rng_available, S_IRUGO, + hwrng_attr_available_show, + NULL); + + +static void unregister_miscdev(void) +{ + class_device_remove_file(rng_miscdev.class, + &class_device_attr_rng_available); + class_device_remove_file(rng_miscdev.class, + &class_device_attr_rng_current); + misc_deregister(&rng_miscdev); +} + +static int register_miscdev(void) +{ + int err; + + err = misc_register(&rng_miscdev); + if (err) + goto out; + err = class_device_create_file(rng_miscdev.class, + &class_device_attr_rng_current); + if (err) + goto err_misc_dereg; + err = class_device_create_file(rng_miscdev.class, + &class_device_attr_rng_available); + if (err) + goto err_remove_current; +out: + return err; + +err_remove_current: + class_device_remove_file(rng_miscdev.class, + &class_device_attr_rng_current); +err_misc_dereg: + misc_deregister(&rng_miscdev); + goto out; +} + +int hwrng_register(struct hwrng *rng) +{ + int must_register_misc; + int err = -EINVAL; + struct hwrng *old_rng, *tmp; + + if (rng->name == NULL || + rng->data_read == NULL) + goto out; + + mutex_lock(&rng_mutex); + + /* Must not register two RNGs with the same name. */ + err = -EEXIST; + list_for_each_entry(tmp, &rng_list, list) { + if (strcmp(tmp->name, rng->name) == 0) + goto out_unlock; + } + + must_register_misc = (current_rng == NULL); + old_rng = current_rng; + if (!old_rng) { + err = hwrng_init(rng); + if (err) + goto out_unlock; + current_rng = rng; + } + err = 0; + if (must_register_misc) { + err = register_miscdev(); + if (err) { + if (!old_rng) { + hwrng_cleanup(rng); + current_rng = NULL; + } + goto out_unlock; + } + } + INIT_LIST_HEAD(&rng->list); + list_add_tail(&rng->list, &rng_list); +out_unlock: + mutex_unlock(&rng_mutex); +out: + return err; +} +EXPORT_SYMBOL_GPL(hwrng_register); + +void hwrng_unregister(struct hwrng *rng) +{ + int err; + + mutex_lock(&rng_mutex); + + list_del(&rng->list); + if (current_rng == rng) { + hwrng_cleanup(rng); + if (list_empty(&rng_list)) { + current_rng = NULL; + } else { + current_rng = list_entry(rng_list.prev, struct hwrng, list); + err = hwrng_init(current_rng); + if (err) + current_rng = NULL; + } + } + if (list_empty(&rng_list)) + unregister_miscdev(); + + mutex_unlock(&rng_mutex); +} +EXPORT_SYMBOL_GPL(hwrng_unregister); + + +MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/hw_random.h b/include/linux/hw_random.h new file mode 100644 index 00000000000..21ea7610e17 --- /dev/null +++ b/include/linux/hw_random.h @@ -0,0 +1,50 @@ +/* + Hardware Random Number Generator + + Please read Documentation/hw_random.txt for details on use. + + ---------------------------------------------------------- + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + */ + +#ifndef LINUX_HWRANDOM_H_ +#define LINUX_HWRANDOM_H_ +#ifdef __KERNEL__ + +#include +#include + +/** + * struct hwrng - Hardware Random Number Generator driver + * @name: Unique RNG name. + * @init: Initialization callback (can be NULL). + * @cleanup: Cleanup callback (can be NULL). + * @data_present: Callback to determine if data is available + * on the RNG. If NULL, it is assumed that + * there is always data available. + * @data_read: Read data from the RNG device. + * Returns the number of lower random bytes in "data". + * Must not be NULL. + * @priv: Private data, for use by the RNG driver. + */ +struct hwrng { + const char *name; + int (*init)(struct hwrng *rng); + void (*cleanup)(struct hwrng *rng); + int (*data_present)(struct hwrng *rng); + int (*data_read)(struct hwrng *rng, u32 *data); + unsigned long priv; + + /* internal. */ + struct list_head list; +}; + +/** Register a new Hardware Random Number Generator driver. */ +extern int hwrng_register(struct hwrng *rng); +/** Unregister a Hardware Random Number Generator driver. */ +extern void hwrng_unregister(struct hwrng *rng); + +#endif /* __KERNEL__ */ +#endif /* LINUX_HWRANDOM_H_ */ -- cgit v1.2.3 From ca644bd5039566725b7c71a559e65ea91b7abfb5 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:24:59 -0700 Subject: [PATCH] Add Intel HW RNG driver Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hw_random/Kconfig | 13 +++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/intel-rng.c | 189 +++++++++++++++++++++++++++++++++++++ 3 files changed, 203 insertions(+) create mode 100644 drivers/char/hw_random/intel-rng.c diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index fa4a245127a..e9ae4b1313a 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -9,3 +9,16 @@ config HW_RANDOM Hardware Random Number Generator Core infrastructure. If unsure, say Y. + +config HW_RANDOM_INTEL + tristate "Intel HW Random Number Generator support" + depends on HW_RANDOM && (X86 || IA64) && PCI + default y + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on Intel i8xx-based motherboards. + + To compile this driver as a module, choose M here: the + module will be called intel-rng. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index aa752af468c..d3118e3750a 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -3,3 +3,4 @@ # obj-$(CONFIG_HW_RANDOM) += core.o +obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c new file mode 100644 index 00000000000..6594bd5645f --- /dev/null +++ b/drivers/char/hw_random/intel-rng.c @@ -0,0 +1,189 @@ +/* + * RNG driver for Intel RNGs + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * with the majority of the code coming from: + * + * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG) + * (c) Copyright 2003 Red Hat Inc + * + * derived from + * + * Hardware driver for the AMD 768 Random Number Generator (RNG) + * (c) Copyright 2001 Red Hat Inc + * + * derived from + * + * Hardware driver for Intel i810 Random Number Generator (RNG) + * Copyright 2000,2001 Jeff Garzik + * Copyright 2000,2001 Philipp Rumpf + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include + + +#define PFX KBUILD_MODNAME ": " + +/* + * RNG registers + */ +#define INTEL_RNG_HW_STATUS 0 +#define INTEL_RNG_PRESENT 0x40 +#define INTEL_RNG_ENABLED 0x01 +#define INTEL_RNG_STATUS 1 +#define INTEL_RNG_DATA_PRESENT 0x01 +#define INTEL_RNG_DATA 2 + +/* + * Magic address at which Intel PCI bridges locate the RNG + */ +#define INTEL_RNG_ADDR 0xFFBC015F +#define INTEL_RNG_ADDR_LEN 3 + +/* + * Data for PCI driver interface + * + * This data only exists for exporting the supported + * PCI ids via MODULE_DEVICE_TABLE. We do not actually + * register a pci_driver, because someone else might one day + * want to register another driver on the same PCI id. + */ +static const struct pci_device_id pci_tbl[] = { + { 0x8086, 0x2418, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0x8086, 0x2428, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0x8086, 0x2430, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0x8086, 0x2448, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0x8086, 0x244e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0x8086, 0x245e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0, }, /* terminate list */ +}; +MODULE_DEVICE_TABLE(pci, pci_tbl); + + +static inline u8 hwstatus_get(void __iomem *mem) +{ + return readb(mem + INTEL_RNG_HW_STATUS); +} + +static inline u8 hwstatus_set(void __iomem *mem, + u8 hw_status) +{ + writeb(hw_status, mem + INTEL_RNG_HW_STATUS); + return hwstatus_get(mem); +} + +static int intel_rng_data_present(struct hwrng *rng) +{ + void __iomem *mem = (void __iomem *)rng->priv; + + return !!(readb(mem + INTEL_RNG_STATUS) & INTEL_RNG_DATA_PRESENT); +} + +static int intel_rng_data_read(struct hwrng *rng, u32 *data) +{ + void __iomem *mem = (void __iomem *)rng->priv; + + *data = readb(mem + INTEL_RNG_DATA); + + return 1; +} + +static int intel_rng_init(struct hwrng *rng) +{ + void __iomem *mem = (void __iomem *)rng->priv; + u8 hw_status; + int err = -EIO; + + hw_status = hwstatus_get(mem); + /* turn RNG h/w on, if it's off */ + if ((hw_status & INTEL_RNG_ENABLED) == 0) + hw_status = hwstatus_set(mem, hw_status | INTEL_RNG_ENABLED); + if ((hw_status & INTEL_RNG_ENABLED) == 0) { + printk(KERN_ERR PFX "cannot enable RNG, aborting\n"); + goto out; + } + err = 0; +out: + return err; +} + +static void intel_rng_cleanup(struct hwrng *rng) +{ + void __iomem *mem = (void __iomem *)rng->priv; + u8 hw_status; + + hw_status = hwstatus_get(mem); + if (hw_status & INTEL_RNG_ENABLED) + hwstatus_set(mem, hw_status & ~INTEL_RNG_ENABLED); + else + printk(KERN_WARNING PFX "unusual: RNG already disabled\n"); +} + + +static struct hwrng intel_rng = { + .name = "intel", + .init = intel_rng_init, + .cleanup = intel_rng_cleanup, + .data_present = intel_rng_data_present, + .data_read = intel_rng_data_read, +}; + + +static int __init mod_init(void) +{ + int err = -ENODEV; + void __iomem *mem; + u8 hw_status; + + if (!pci_dev_present(pci_tbl)) + goto out; /* Device not found. */ + + err = -ENOMEM; + mem = ioremap(INTEL_RNG_ADDR, INTEL_RNG_ADDR_LEN); + if (!mem) + goto out; + intel_rng.priv = (unsigned long)mem; + + /* Check for Intel 82802 */ + err = -ENODEV; + hw_status = hwstatus_get(mem); + if ((hw_status & INTEL_RNG_PRESENT) == 0) + goto err_unmap; + + printk(KERN_INFO "Intel 82802 RNG detected\n"); + err = hwrng_register(&intel_rng); + if (err) { + printk(KERN_ERR PFX "RNG registering failed (%d)\n", + err); + goto out; + } +out: + return err; + +err_unmap: + iounmap(mem); + goto out; +} + +static void __exit mod_exit(void) +{ + void __iomem *mem = (void __iomem *)intel_rng.priv; + + hwrng_unregister(&intel_rng); + iounmap(mem); +} + +subsys_initcall(mod_init); +module_exit(mod_exit); + +MODULE_DESCRIPTION("H/W RNG driver for Intel chipsets"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:25:00 -0700 Subject: [PATCH] Add AMD HW RNG driver Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hw_random/Kconfig | 13 ++++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/amd-rng.c | 152 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 166 insertions(+) create mode 100644 drivers/char/hw_random/amd-rng.c diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index e9ae4b1313a..950247313ca 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -22,3 +22,16 @@ config HW_RANDOM_INTEL module will be called intel-rng. If unsure, say Y. + +config HW_RANDOM_AMD + tristate "AMD HW Random Number Generator support" + depends on HW_RANDOM && X86 && PCI + default y + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on AMD 76x-based motherboards. + + To compile this driver as a module, choose M here: the + module will be called amd-rng. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index d3118e3750a..40dbc097a5d 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_HW_RANDOM) += core.o obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o +obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c new file mode 100644 index 00000000000..71e4e0f3fd5 --- /dev/null +++ b/drivers/char/hw_random/amd-rng.c @@ -0,0 +1,152 @@ +/* + * RNG driver for AMD RNGs + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * with the majority of the code coming from: + * + * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG) + * (c) Copyright 2003 Red Hat Inc + * + * derived from + * + * Hardware driver for the AMD 768 Random Number Generator (RNG) + * (c) Copyright 2001 Red Hat Inc + * + * derived from + * + * Hardware driver for Intel i810 Random Number Generator (RNG) + * Copyright 2000,2001 Jeff Garzik + * Copyright 2000,2001 Philipp Rumpf + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include + + +#define PFX KBUILD_MODNAME ": " + + +/* + * Data for PCI driver interface + * + * This data only exists for exporting the supported + * PCI ids via MODULE_DEVICE_TABLE. We do not actually + * register a pci_driver, because someone else might one day + * want to register another driver on the same PCI id. + */ +static const struct pci_device_id pci_tbl[] = { + { 0x1022, 0x7443, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0x1022, 0x746b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0, }, /* terminate list */ +}; +MODULE_DEVICE_TABLE(pci, pci_tbl); + +static struct pci_dev *amd_pdev; + + +static int amd_rng_data_present(struct hwrng *rng) +{ + u32 pmbase = (u32)rng->priv; + + return !!(inl(pmbase + 0xF4) & 1); +} + +static int amd_rng_data_read(struct hwrng *rng, u32 *data) +{ + u32 pmbase = (u32)rng->priv; + + *data = inl(pmbase + 0xF0); + + return 4; +} + +static int amd_rng_init(struct hwrng *rng) +{ + u8 rnen; + + pci_read_config_byte(amd_pdev, 0x40, &rnen); + rnen |= (1 << 7); /* RNG on */ + pci_write_config_byte(amd_pdev, 0x40, rnen); + + pci_read_config_byte(amd_pdev, 0x41, &rnen); + rnen |= (1 << 7); /* PMIO enable */ + pci_write_config_byte(amd_pdev, 0x41, rnen); + + return 0; +} + +static void amd_rng_cleanup(struct hwrng *rng) +{ + u8 rnen; + + pci_read_config_byte(amd_pdev, 0x40, &rnen); + rnen &= ~(1 << 7); /* RNG off */ + pci_write_config_byte(amd_pdev, 0x40, rnen); +} + + +static struct hwrng amd_rng = { + .name = "amd", + .init = amd_rng_init, + .cleanup = amd_rng_cleanup, + .data_present = amd_rng_data_present, + .data_read = amd_rng_data_read, +}; + + +static int __init mod_init(void) +{ + int err = -ENODEV; + struct pci_dev *pdev = NULL; + const struct pci_device_id *ent; + u32 pmbase; + + for_each_pci_dev(pdev) { + ent = pci_match_id(pci_tbl, pdev); + if (ent) + goto found; + } + /* Device not found. */ + goto out; + +found: + err = pci_read_config_dword(pdev, 0x58, &pmbase); + if (err) + goto out; + err = -EIO; + pmbase &= 0x0000FF00; + if (pmbase == 0) + goto out; + amd_rng.priv = (unsigned long)pmbase; + amd_pdev = pdev; + + printk(KERN_INFO "AMD768 RNG detected\n"); + err = hwrng_register(&amd_rng); + if (err) { + printk(KERN_ERR PFX "RNG registering failed (%d)\n", + err); + goto out; + } +out: + return err; +} + +static void __exit mod_exit(void) +{ + hwrng_unregister(&amd_rng); +} + +subsys_initcall(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("The Linux Kernel team"); +MODULE_DESCRIPTION("H/W RNG driver for AMD chipsets"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From ef5d862734b84239e0140319a95fb0bbff5ef394 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:25:01 -0700 Subject: [PATCH] Add Geode HW RNG driver Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hw_random/Kconfig | 13 ++++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/geode-rng.c | 128 +++++++++++++++++++++++++++++++++++++ 3 files changed, 142 insertions(+) create mode 100644 drivers/char/hw_random/geode-rng.c diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 950247313ca..defe6873695 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -35,3 +35,16 @@ config HW_RANDOM_AMD module will be called amd-rng. If unsure, say Y. + +config HW_RANDOM_GEODE + tristate "AMD Geode HW Random Number Generator support" + depends on HW_RANDOM && X86 && PCI + default y + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on the AMD Geode LX. + + To compile this driver as a module, choose M here: the + module will be called geode-rng. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index 40dbc097a5d..19ff20e5fb1 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_HW_RANDOM) += core.o obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o +obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o diff --git a/drivers/char/hw_random/geode-rng.c b/drivers/char/hw_random/geode-rng.c new file mode 100644 index 00000000000..be61f22ee7b --- /dev/null +++ b/drivers/char/hw_random/geode-rng.c @@ -0,0 +1,128 @@ +/* + * RNG driver for AMD Geode RNGs + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * with the majority of the code coming from: + * + * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG) + * (c) Copyright 2003 Red Hat Inc + * + * derived from + * + * Hardware driver for the AMD 768 Random Number Generator (RNG) + * (c) Copyright 2001 Red Hat Inc + * + * derived from + * + * Hardware driver for Intel i810 Random Number Generator (RNG) + * Copyright 2000,2001 Jeff Garzik + * Copyright 2000,2001 Philipp Rumpf + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include + + +#define PFX KBUILD_MODNAME ": " + +#define GEODE_RNG_DATA_REG 0x50 +#define GEODE_RNG_STATUS_REG 0x54 + +/* + * Data for PCI driver interface + * + * This data only exists for exporting the supported + * PCI ids via MODULE_DEVICE_TABLE. We do not actually + * register a pci_driver, because someone else might one day + * want to register another driver on the same PCI id. + */ +static const struct pci_device_id pci_tbl[] = { + { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_AES, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, + { 0, }, /* terminate list */ +}; +MODULE_DEVICE_TABLE(pci, pci_tbl); + + +static int geode_rng_data_read(struct hwrng *rng, u32 *data) +{ + void __iomem *mem = (void __iomem *)rng->priv; + + *data = readl(mem + GEODE_RNG_DATA_REG); + + return 4; +} + +static int geode_rng_data_present(struct hwrng *rng) +{ + void __iomem *mem = (void __iomem *)rng->priv; + + return !!(readl(mem + GEODE_RNG_STATUS_REG)); +} + + +static struct hwrng geode_rng = { + .name = "geode", + .data_present = geode_rng_data_present, + .data_read = geode_rng_data_read, +}; + + +static int __init mod_init(void) +{ + int err = -ENODEV; + struct pci_dev *pdev = NULL; + const struct pci_device_id *ent; + void __iomem *mem; + unsigned long rng_base; + + for_each_pci_dev(pdev) { + ent = pci_match_id(pci_tbl, pdev); + if (ent) + goto found; + } + /* Device not found. */ + goto out; + +found: + rng_base = pci_resource_start(pdev, 0); + if (rng_base == 0) + goto out; + err = -ENOMEM; + mem = ioremap(rng_base, 0x58); + if (!mem) + goto out; + geode_rng.priv = (unsigned long)mem; + + printk(KERN_INFO "AMD Geode RNG detected\n"); + err = hwrng_register(&geode_rng); + if (err) { + printk(KERN_ERR PFX "RNG registering failed (%d)\n", + err); + goto out; + } +out: + return err; +} + +static void __exit mod_exit(void) +{ + void __iomem *mem = (void __iomem *)geode_rng.priv; + + hwrng_unregister(&geode_rng); + iounmap(mem); +} + +subsys_initcall(mod_init); +module_exit(mod_exit); + +MODULE_DESCRIPTION("H/W RNG driver for AMD Geode LX CPUs"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 13523363577d49b9af3cad06fcb757126bedc61b Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:25:02 -0700 Subject: [PATCH] Add VIA HW RNG driver Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hw_random/Kconfig | 13 +++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/via-rng.c | 183 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 197 insertions(+) create mode 100644 drivers/char/hw_random/via-rng.c diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index defe6873695..01e2691d568 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -48,3 +48,16 @@ config HW_RANDOM_GEODE module will be called geode-rng. If unsure, say Y. + +config HW_RANDOM_VIA + tristate "VIA HW Random Number Generator support" + depends on HW_RANDOM && X86_32 + default y + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on VIA based motherboards. + + To compile this driver as a module, choose M here: the + module will be called via-rng. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index 19ff20e5fb1..f03bdf23f7b 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_HW_RANDOM) += core.o obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o +obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c new file mode 100644 index 00000000000..0e786b617bb --- /dev/null +++ b/drivers/char/hw_random/via-rng.c @@ -0,0 +1,183 @@ +/* + * RNG driver for VIA RNGs + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * with the majority of the code coming from: + * + * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG) + * (c) Copyright 2003 Red Hat Inc + * + * derived from + * + * Hardware driver for the AMD 768 Random Number Generator (RNG) + * (c) Copyright 2001 Red Hat Inc + * + * derived from + * + * Hardware driver for Intel i810 Random Number Generator (RNG) + * Copyright 2000,2001 Jeff Garzik + * Copyright 2000,2001 Philipp Rumpf + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include + + +#define PFX KBUILD_MODNAME ": " + + +enum { + VIA_STRFILT_CNT_SHIFT = 16, + VIA_STRFILT_FAIL = (1 << 15), + VIA_STRFILT_ENABLE = (1 << 14), + VIA_RAWBITS_ENABLE = (1 << 13), + VIA_RNG_ENABLE = (1 << 6), + VIA_XSTORE_CNT_MASK = 0x0F, + + VIA_RNG_CHUNK_8 = 0x00, /* 64 rand bits, 64 stored bits */ + VIA_RNG_CHUNK_4 = 0x01, /* 32 rand bits, 32 stored bits */ + VIA_RNG_CHUNK_4_MASK = 0xFFFFFFFF, + VIA_RNG_CHUNK_2 = 0x02, /* 16 rand bits, 32 stored bits */ + VIA_RNG_CHUNK_2_MASK = 0xFFFF, + VIA_RNG_CHUNK_1 = 0x03, /* 8 rand bits, 32 stored bits */ + VIA_RNG_CHUNK_1_MASK = 0xFF, +}; + +/* + * Investigate using the 'rep' prefix to obtain 32 bits of random data + * in one insn. The upside is potentially better performance. The + * downside is that the instruction becomes no longer atomic. Due to + * this, just like familiar issues with /dev/random itself, the worst + * case of a 'rep xstore' could potentially pause a cpu for an + * unreasonably long time. In practice, this condition would likely + * only occur when the hardware is failing. (or so we hope :)) + * + * Another possible performance boost may come from simply buffering + * until we have 4 bytes, thus returning a u32 at a time, + * instead of the current u8-at-a-time. + */ + +static inline u32 xstore(u32 *addr, u32 edx_in) +{ + u32 eax_out; + + asm(".byte 0x0F,0xA7,0xC0 /* xstore %%edi (addr=%0) */" + :"=m"(*addr), "=a"(eax_out) + :"D"(addr), "d"(edx_in)); + + return eax_out; +} + +static int via_rng_data_present(struct hwrng *rng) +{ + u32 bytes_out; + u32 *via_rng_datum = (u32 *)(&rng->priv); + + /* We choose the recommended 1-byte-per-instruction RNG rate, + * for greater randomness at the expense of speed. Larger + * values 2, 4, or 8 bytes-per-instruction yield greater + * speed at lesser randomness. + * + * If you change this to another VIA_CHUNK_n, you must also + * change the ->n_bytes values in rng_vendor_ops[] tables. + * VIA_CHUNK_8 requires further code changes. + * + * A copy of MSR_VIA_RNG is placed in eax_out when xstore + * completes. + */ + + *via_rng_datum = 0; /* paranoia, not really necessary */ + bytes_out = xstore(via_rng_datum, VIA_RNG_CHUNK_1); + bytes_out &= VIA_XSTORE_CNT_MASK; + if (bytes_out == 0) + return 0; + return 1; +} + +static int via_rng_data_read(struct hwrng *rng, u32 *data) +{ + u32 via_rng_datum = (u32)rng->priv; + + *data = via_rng_datum; + + return 1; +} + +static int via_rng_init(struct hwrng *rng) +{ + u32 lo, hi, old_lo; + + /* Control the RNG via MSR. Tread lightly and pay very close + * close attention to values written, as the reserved fields + * are documented to be "undefined and unpredictable"; but it + * does not say to write them as zero, so I make a guess that + * we restore the values we find in the register. + */ + rdmsr(MSR_VIA_RNG, lo, hi); + + old_lo = lo; + lo &= ~(0x7f << VIA_STRFILT_CNT_SHIFT); + lo &= ~VIA_XSTORE_CNT_MASK; + lo &= ~(VIA_STRFILT_ENABLE | VIA_STRFILT_FAIL | VIA_RAWBITS_ENABLE); + lo |= VIA_RNG_ENABLE; + + if (lo != old_lo) + wrmsr(MSR_VIA_RNG, lo, hi); + + /* perhaps-unnecessary sanity check; remove after testing if + unneeded */ + rdmsr(MSR_VIA_RNG, lo, hi); + if ((lo & VIA_RNG_ENABLE) == 0) { + printk(KERN_ERR PFX "cannot enable VIA C3 RNG, aborting\n"); + return -ENODEV; + } + + return 0; +} + + +static struct hwrng via_rng = { + .name = "via", + .init = via_rng_init, + .data_present = via_rng_data_present, + .data_read = via_rng_data_read, +}; + + +static int __init mod_init(void) +{ + int err; + + if (!cpu_has_xstore) + return -ENODEV; + printk(KERN_INFO "VIA RNG detected\n"); + err = hwrng_register(&via_rng); + if (err) { + printk(KERN_ERR PFX "RNG registering failed (%d)\n", + err); + goto out; + } +out: + return err; +} + +static void __exit mod_exit(void) +{ + hwrng_unregister(&via_rng); +} + +subsys_initcall(mod_init); +module_exit(mod_exit); + +MODULE_DESCRIPTION("H/W RNG driver for VIA chipsets"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From d7174bcb919c15b295271e37c3f65c716710715c Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:25:02 -0700 Subject: [PATCH] Add ixp4xx HW RNG driver Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hw_random/Kconfig | 13 +++++++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/ixp4xx-rng.c | 73 +++++++++++++++++++++++++++++++++++++ 3 files changed, 87 insertions(+) create mode 100644 drivers/char/hw_random/ixp4xx-rng.c diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 01e2691d568..1100fd7428e 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -61,3 +61,16 @@ config HW_RANDOM_VIA module will be called via-rng. If unsure, say Y. + +config HW_RANDOM_IXP4XX + tristate "Intel IXP4xx NPU HW Random Number Generator support" + depends on HW_RANDOM && ARCH_IXP4XX + default y + ---help--- + This driver provides kernel-side support for the Random + Number Generator hardware found on the Intel IXP4xx NPU. + + To compile this driver as a module, choose M here: the + module will be called ixp4xx-rng. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index f03bdf23f7b..46076dfbd3f 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -7,3 +7,4 @@ obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o +obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o diff --git a/drivers/char/hw_random/ixp4xx-rng.c b/drivers/char/hw_random/ixp4xx-rng.c new file mode 100644 index 00000000000..ef71022423c --- /dev/null +++ b/drivers/char/hw_random/ixp4xx-rng.c @@ -0,0 +1,73 @@ +/* + * drivers/char/rng/ixp4xx-rng.c + * + * RNG driver for Intel IXP4xx family of NPUs + * + * Author: Deepak Saxena + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * Fixes by Michael Buesch + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + + +static int ixp4xx_rng_data_read(struct hwrng *rng, u32 *buffer) +{ + void __iomem * rng_base = (void __iomem *)rng->priv; + + *buffer = __raw_readl(rng_base); + + return 4; +} + +static struct hwrng ixp4xx_rng_ops = { + .name = "ixp4xx", + .data_read = ixp4xx_rng_data_read, +}; + +static int __init ixp4xx_rng_init(void) +{ + void __iomem * rng_base; + int err; + + rng_base = ioremap(0x70002100, 4); + if (!rng_base) + return -ENOMEM; + ixp4xx_rng_ops.priv = (unsigned long)rng_base; + err = hwrng_register(&ixp4xx_rng_ops); + if (err) + iounmap(rng_base); + + return err; +} + +static void __exit ixp4xx_rng_exit(void) +{ + void __iomem * rng_base = (void __iomem *)ixp4xx_rng_ops.priv; + + hwrng_unregister(&ixp4xx_rng_ops); + iounmap(rng_base); +} + +subsys_initcall(ixp4xx_rng_init); +module_exit(ixp4xx_rng_exit); + +MODULE_AUTHOR("Deepak Saxena "); +MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver for IXP4xx"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From ebc915ad26d881ddcafbe4e0975203d23289f36f Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:25:03 -0700 Subject: [PATCH] Add TI OMAP CPU family HW RNG driver Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hw_random/Kconfig | 14 +++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/omap-rng.c | 208 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 223 insertions(+) create mode 100644 drivers/char/hw_random/omap-rng.c diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 1100fd7428e..9f7635f7517 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -74,3 +74,17 @@ config HW_RANDOM_IXP4XX module will be called ixp4xx-rng. If unsure, say Y. + +config HW_RANDOM_OMAP + tristate "OMAP Random Number Generator support" + depends on HW_RANDOM && (ARCH_OMAP16XX || ARCH_OMAP24XX) + default y + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on OMAP16xx and OMAP24xx multimedia + processors. + + To compile this driver as a module, choose M here: the + module will be called omap-rng. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index 46076dfbd3f..e263ae96f94 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -8,3 +8,4 @@ obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o +obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c new file mode 100644 index 00000000000..819516b35a7 --- /dev/null +++ b/drivers/char/hw_random/omap-rng.c @@ -0,0 +1,208 @@ +/* + * driver/char/hw_random/omap-rng.c + * + * RNG driver for TI OMAP CPU family + * + * Author: Deepak Saxena + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * Mostly based on original driver: + * + * Copyright (C) 2005 Nokia Corporation + * Author: Juha Yrj�� + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * TODO: + * + * - Make status updated be interrupt driven so we don't poll + * + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +#define RNG_OUT_REG 0x00 /* Output register */ +#define RNG_STAT_REG 0x04 /* Status register + [0] = STAT_BUSY */ +#define RNG_ALARM_REG 0x24 /* Alarm register + [7:0] = ALARM_COUNTER */ +#define RNG_CONFIG_REG 0x28 /* Configuration register + [11:6] = RESET_COUNT + [5:3] = RING2_DELAY + [2:0] = RING1_DELAY */ +#define RNG_REV_REG 0x3c /* Revision register + [7:0] = REV_NB */ +#define RNG_MASK_REG 0x40 /* Mask and reset register + [2] = IT_EN + [1] = SOFTRESET + [0] = AUTOIDLE */ +#define RNG_SYSSTATUS 0x44 /* System status + [0] = RESETDONE */ + +static void __iomem *rng_base; +static struct clk *rng_ick; +static struct device *rng_dev; + +static u32 omap_rng_read_reg(int reg) +{ + return __raw_readl(rng_base + reg); +} + +static void omap_rng_write_reg(int reg, u32 val) +{ + __raw_writel(val, rng_base + reg); +} + +/* REVISIT: Does the status bit really work on 16xx? */ +static int omap_rng_data_present(struct hwrng *rng) +{ + return omap_rng_read_reg(RNG_STAT_REG) ? 0 : 1; +} + +static int omap_rng_data_read(struct hwrng *rng, u32 *data) +{ + *data = omap_rng_read_reg(RNG_OUT_REG); + + return 4; +} + +static struct hwrng omap_rng_ops = { + .name = "omap", + .data_present = omap_rng_data_present, + .data_read = omap_rng_data_read, +}; + +static int __init omap_rng_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct resource *res, *mem; + int ret; + + /* + * A bit ugly, and it will never actually happen but there can + * be only one RNG and this catches any bork + */ + BUG_ON(rng_dev); + + if (cpu_is_omap24xx()) { + rng_ick = clk_get(NULL, "rng_ick"); + if (IS_ERR(rng_ick)) { + dev_err(dev, "Could not get rng_ick\n"); + ret = PTR_ERR(rng_ick); + return ret; + } + else { + clk_use(rng_ick); + } + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + if (!res) + return -ENOENT; + + mem = request_mem_region(res->start, res->end - res->start + 1, + pdev->name); + if (mem == NULL) + return -EBUSY; + + dev_set_drvdata(dev, mem); + rng_base = (u32 __iomem *)io_p2v(res->start); + + ret = hwrng_register(&omap_rng_ops); + if (ret) { + release_resource(mem); + rng_base = NULL; + return ret; + } + + dev_info(dev, "OMAP Random Number Generator ver. %02x\n", + omap_rng_read_reg(RNG_REV_REG)); + omap_rng_write_reg(RNG_MASK_REG, 0x1); + + rng_dev = dev; + + return 0; +} + +static int __exit omap_rng_remove(struct device *dev) +{ + struct resource *mem = dev_get_drvdata(dev); + + hwrng_unregister(&omap_rng_ops); + + omap_rng_write_reg(RNG_MASK_REG, 0x0); + + if (cpu_is_omap24xx()) { + clk_unuse(rng_ick); + clk_put(rng_ick); + } + + release_resource(mem); + rng_base = NULL; + + return 0; +} + +#ifdef CONFIG_PM + +static int omap_rng_suspend(struct device *dev, pm_message_t message, u32 level) +{ + omap_rng_write_reg(RNG_MASK_REG, 0x0); + + return 0; +} + +static int omap_rng_resume(struct device *dev, pm_message_t message, u32 level) +{ + omap_rng_write_reg(RNG_MASK_REG, 0x1); + + return 1; +} + +#else + +#define omap_rng_suspend NULL +#define omap_rng_resume NULL + +#endif + + +static struct device_driver omap_rng_driver = { + .name = "omap_rng", + .bus = &platform_bus_type, + .probe = omap_rng_probe, + .remove = __exit_p(omap_rng_remove), + .suspend = omap_rng_suspend, + .resume = omap_rng_resume +}; + +static int __init omap_rng_init(void) +{ + if (!cpu_is_omap16xx() && !cpu_is_omap24xx()) + return -ENODEV; + + return driver_register(&omap_rng_driver); +} + +static void __exit omap_rng_exit(void) +{ + driver_unregister(&omap_rng_driver); +} + +module_init(omap_rng_init); +module_exit(omap_rng_exit); + +MODULE_AUTHOR("Deepak Saxena (and others)"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 71c0cd7042672fce2463d82183d20bfb574f4cb5 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:25:04 -0700 Subject: [PATCH] Add bcm43xx HW RNG support Signed-off-by: Michael Buesch Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/net/wireless/bcm43xx/Kconfig | 1 + drivers/net/wireless/bcm43xx/bcm43xx.h | 6 +++++ drivers/net/wireless/bcm43xx/bcm43xx_main.c | 37 +++++++++++++++++++++++++++++ 3 files changed, 44 insertions(+) diff --git a/drivers/net/wireless/bcm43xx/Kconfig b/drivers/net/wireless/bcm43xx/Kconfig index 25ea4748f0b..533993f538f 100644 --- a/drivers/net/wireless/bcm43xx/Kconfig +++ b/drivers/net/wireless/bcm43xx/Kconfig @@ -2,6 +2,7 @@ config BCM43XX tristate "Broadcom BCM43xx wireless support" depends on PCI && IEEE80211 && IEEE80211_SOFTMAC && NET_RADIO && EXPERIMENTAL select FW_LOADER + select HW_RANDOM ---help--- This is an experimental driver for the Broadcom 43xx wireless chip, found in the Apple Airport Extreme and various other devices. diff --git a/drivers/net/wireless/bcm43xx/bcm43xx.h b/drivers/net/wireless/bcm43xx/bcm43xx.h index d8f917c21ea..17a56828e23 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx.h +++ b/drivers/net/wireless/bcm43xx/bcm43xx.h @@ -1,6 +1,7 @@ #ifndef BCM43xx_H_ #define BCM43xx_H_ +#include #include #include #include @@ -82,6 +83,7 @@ #define BCM43xx_MMIO_TSF_1 0x634 /* core rev < 3 only */ #define BCM43xx_MMIO_TSF_2 0x636 /* core rev < 3 only */ #define BCM43xx_MMIO_TSF_3 0x638 /* core rev < 3 only */ +#define BCM43xx_MMIO_RNG 0x65A #define BCM43xx_MMIO_POWERUP_DELAY 0x6A8 /* SPROM offsets. */ @@ -750,6 +752,10 @@ struct bcm43xx_private { const struct firmware *initvals0; const struct firmware *initvals1; + /* Random Number Generator. */ + struct hwrng rng; + char rng_name[20 + 1]; + /* Debugging stuff follows. */ #ifdef CONFIG_BCM43XX_DEBUG struct bcm43xx_dfsentry *dfsentry; diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c index 085d7857fe3..27bcf47228e 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c @@ -3237,6 +3237,39 @@ static void bcm43xx_security_init(struct bcm43xx_private *bcm) bcm43xx_clear_keys(bcm); } +static int bcm43xx_rng_read(struct hwrng *rng, u32 *data) +{ + struct bcm43xx_private *bcm = (struct bcm43xx_private *)rng->priv; + unsigned long flags; + + bcm43xx_lock_irqonly(bcm, flags); + *data = bcm43xx_read16(bcm, BCM43xx_MMIO_RNG); + bcm43xx_unlock_irqonly(bcm, flags); + + return (sizeof(u16)); +} + +static void bcm43xx_rng_exit(struct bcm43xx_private *bcm) +{ + hwrng_unregister(&bcm->rng); +} + +static int bcm43xx_rng_init(struct bcm43xx_private *bcm) +{ + int err; + + snprintf(bcm->rng_name, ARRAY_SIZE(bcm->rng_name), + "%s_%s", KBUILD_MODNAME, bcm->net_dev->name); + bcm->rng.name = bcm->rng_name; + bcm->rng.data_read = bcm43xx_rng_read; + bcm->rng.priv = (unsigned long)bcm; + err = hwrng_register(&bcm->rng); + if (err) + printk(KERN_ERR PFX "RNG init failed (%d)\n", err); + + return err; +} + /* This is the opposite of bcm43xx_init_board() */ static void bcm43xx_free_board(struct bcm43xx_private *bcm) { @@ -3248,6 +3281,7 @@ static void bcm43xx_free_board(struct bcm43xx_private *bcm) bcm43xx_set_status(bcm, BCM43xx_STAT_SHUTTINGDOWN); + bcm43xx_rng_exit(bcm); for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) { if (!bcm->core_80211[i].available) continue; @@ -3325,6 +3359,9 @@ static int bcm43xx_init_board(struct bcm43xx_private *bcm) bcm43xx_switch_core(bcm, &bcm->core_80211[0]); bcm43xx_mac_enable(bcm); } + err = bcm43xx_rng_init(bcm); + if (err) + goto err_80211_unwind; bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC); bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_SELF, (u8 *)(bcm->net_dev->dev_addr)); dprintk(KERN_INFO PFX "80211 cores initialized\n"); -- cgit v1.2.3 From ade1a29e168ba08b699a418ff5e762315fa33f70 Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Mon, 26 Jun 2006 00:25:04 -0700 Subject: [PATCH] ext3: Add "-o bh" option This patch adds "-o bh" option to force use of buffer_heads. This option is needed when we make "nobh" as default - and if we run into problems. Signed-off-by: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/ext3.txt | 8 ++++++++ fs/ext3/super.c | 6 +++++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt index afb1335c05d..4aecc9bdb27 100644 --- a/Documentation/filesystems/ext3.txt +++ b/Documentation/filesystems/ext3.txt @@ -113,6 +113,14 @@ noquota grpquota usrquota +bh (*) ext3 associates buffer heads to data pages to +nobh (a) cache disk block mapping information + (b) link pages into transaction to provide + ordering guarantees. + "bh" option forces use of buffer heads. + "nobh" option tries to avoid associating buffer + heads (supported only for "writeback" mode). + Specification ============= diff --git a/fs/ext3/super.c b/fs/ext3/super.c index b2891cc29db..b7483360a2d 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -630,7 +630,7 @@ enum { Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug, Opt_oldalloc, Opt_orlov, Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl, - Opt_reservation, Opt_noreservation, Opt_noload, Opt_nobh, + Opt_reservation, Opt_noreservation, Opt_noload, Opt_nobh, Opt_bh, Opt_commit, Opt_journal_update, Opt_journal_inum, Opt_journal_dev, Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback, Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota, @@ -666,6 +666,7 @@ static match_table_t tokens = { {Opt_noreservation, "noreservation"}, {Opt_noload, "noload"}, {Opt_nobh, "nobh"}, + {Opt_bh, "bh"}, {Opt_commit, "commit=%u"}, {Opt_journal_update, "journal=update"}, {Opt_journal_inum, "journal=%u"}, @@ -1014,6 +1015,9 @@ clear_qf_name: case Opt_nobh: set_opt(sbi->s_mount_opt, NOBH); break; + case Opt_bh: + clear_opt(sbi->s_mount_opt, NOBH); + break; default: printk (KERN_ERR "EXT3-fs: Unrecognized mount option \"%s\" " -- cgit v1.2.3 From 734efb467b31e56c2f9430590a9aa867ecf3eea1 Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:05 -0700 Subject: [PATCH] Time: Clocksource Infrastructure This introduces the clocksource management infrastructure. A clocksource is a driver-like architecture generic abstraction of a free-running counter. This code defines the clocksource structure, and provides management code for registering, selecting, accessing and scaling clocksources. Additionally, this includes the trivial jiffies clocksource, a lowest common denominator clocksource, provided mainly for use as an example. [hirofumi@mail.parknet.co.jp: Don't enable IRQ too early] Signed-off-by: John Stultz Signed-off-by: Ingo Molnar Signed-off-by: Paul Mundt Signed-off-by: John Stultz Signed-off-by: OGAWA Hirofumi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/kernel-parameters.txt | 14 +- include/linux/clocksource.h | 181 +++++++++++++++++++ kernel/time/Makefile | 1 + kernel/time/clocksource.c | 344 ++++++++++++++++++++++++++++++++++++ kernel/time/jiffies.c | 73 ++++++++ 5 files changed, 609 insertions(+), 4 deletions(-) create mode 100644 include/linux/clocksource.h create mode 100644 kernel/time/Makefile create mode 100644 kernel/time/clocksource.c create mode 100644 kernel/time/jiffies.c diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index bca6f389da6..968631678d4 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -61,6 +61,7 @@ parameter is applicable: MTD MTD support is enabled. NET Appropriate network support is enabled. NUMA NUMA support is enabled. + GENERIC_TIME The generic timeofday code is enabled. NFS Appropriate NFS support is enabled. OSS OSS sound support is enabled. PARIDE The ParIDE subsystem is enabled. @@ -341,10 +342,11 @@ running once the system is up. Value can be changed at runtime via /selinux/checkreqprot. - clock= [BUGS=IA-32,HW] gettimeofday timesource override. - Forces specified timesource (if avaliable) to be used - when calculating gettimeofday(). If specicified - timesource is not avalible, it defaults to PIT. + clock= [BUGS=IA-32, HW] gettimeofday clocksource override. + [Deprecated] + Forces specified clocksource (if avaliable) to be used + when calculating gettimeofday(). If specified + clocksource is not avalible, it defaults to PIT. Format: { pit | tsc | cyclone | pmtmr } disable_8254_timer @@ -1617,6 +1619,10 @@ running once the system is up. time Show timing data prefixed to each printk message line + clocksource= [GENERIC_TIME] Override the default clocksource + Override the default clocksource and use the clocksource + with the name specified. + tipar.timeout= [HW,PPT] Set communications timeout in tenths of a second (default 15). diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h new file mode 100644 index 00000000000..c4187cda0ee --- /dev/null +++ b/include/linux/clocksource.h @@ -0,0 +1,181 @@ +/* linux/include/linux/clocksource.h + * + * This file contains the structure definitions for clocksources. + * + * If you are not a clocksource, or timekeeping code, you should + * not be including this file! + */ +#ifndef _LINUX_CLOCKSOURCE_H +#define _LINUX_CLOCKSOURCE_H + +#include +#include +#include +#include +#include +#include + +/* clocksource cycle base type */ +typedef u64 cycle_t; + +/** + * struct clocksource - hardware abstraction for a free running counter + * Provides mostly state-free accessors to the underlying hardware. + * + * @name: ptr to clocksource name + * @list: list head for registration + * @rating: rating value for selection (higher is better) + * To avoid rating inflation the following + * list should give you a guide as to how + * to assign your clocksource a rating + * 1-99: Unfit for real use + * Only available for bootup and testing purposes. + * 100-199: Base level usability. + * Functional for real use, but not desired. + * 200-299: Good. + * A correct and usable clocksource. + * 300-399: Desired. + * A reasonably fast and accurate clocksource. + * 400-499: Perfect + * The ideal clocksource. A must-use where + * available. + * @read: returns a cycle value + * @mask: bitmask for two's complement + * subtraction of non 64 bit counters + * @mult: cycle to nanosecond multiplier + * @shift: cycle to nanosecond divisor (power of two) + * @update_callback: called when safe to alter clocksource values + * @is_continuous: defines if clocksource is free-running. + * @interval_cycles: Used internally by timekeeping core, please ignore. + * @interval_snsecs: Used internally by timekeeping core, please ignore. + */ +struct clocksource { + char *name; + struct list_head list; + int rating; + cycle_t (*read)(void); + cycle_t mask; + u32 mult; + u32 shift; + int (*update_callback)(void); + int is_continuous; + + /* timekeeping specific data, ignore */ + cycle_t interval_cycles; + u64 interval_snsecs; +}; + + +/** + * clocksource_khz2mult - calculates mult from khz and shift + * @khz: Clocksource frequency in KHz + * @shift_constant: Clocksource shift factor + * + * Helper functions that converts a khz counter frequency to a timsource + * multiplier, given the clocksource shift value + */ +static inline u32 clocksource_khz2mult(u32 khz, u32 shift_constant) +{ + /* khz = cyc/(Million ns) + * mult/2^shift = ns/cyc + * mult = ns/cyc * 2^shift + * mult = 1Million/khz * 2^shift + * mult = 1000000 * 2^shift / khz + * mult = (1000000<read(); +} + +/** + * cyc2ns - converts clocksource cycles to nanoseconds + * @cs: Pointer to clocksource + * @cycles: Cycles + * + * Uses the clocksource and ntp ajdustment to convert cycle_ts to nanoseconds. + * + * XXX - This could use some mult_lxl_ll() asm optimization + */ +static inline s64 cyc2ns(struct clocksource *cs, cycle_t cycles) +{ + u64 ret = (u64)cycles; + ret = (ret * cs->mult) >> cs->shift; + return ret; +} + +/** + * calculate_clocksource_interval - Calculates a clocksource interval struct + * + * @c: Pointer to clocksource. + * @length_nsec: Desired interval length in nanoseconds. + * + * Calculates a fixed cycle/nsec interval for a given clocksource/adjustment + * pair and interval request. + * + * Unless you're the timekeeping code, you should not be using this! + */ +static inline void calculate_clocksource_interval(struct clocksource *c, + unsigned long length_nsec) +{ + u64 tmp; + + /* XXX - All of this could use a whole lot of optimization */ + tmp = length_nsec; + tmp <<= c->shift; + tmp += c->mult/2; + do_div(tmp, c->mult); + + c->interval_cycles = (cycle_t)tmp; + if(c->interval_cycles == 0) + c->interval_cycles = 1; + + c->interval_snsecs = (u64)c->interval_cycles * c->mult; +} + +/* used to install a new clocksource */ +int register_clocksource(struct clocksource*); +void reselect_clocksource(void); +struct clocksource* get_next_clocksource(void); + +#endif /* _LINUX_CLOCKSOURCE_H */ diff --git a/kernel/time/Makefile b/kernel/time/Makefile new file mode 100644 index 00000000000..e1dfd8e86cc --- /dev/null +++ b/kernel/time/Makefile @@ -0,0 +1 @@ +obj-y += clocksource.o jiffies.o diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c new file mode 100644 index 00000000000..95dd2200a10 --- /dev/null +++ b/kernel/time/clocksource.c @@ -0,0 +1,344 @@ +/* + * linux/kernel/time/clocksource.c + * + * This file contains the functions which manage clocksource drivers. + * + * Copyright (C) 2004, 2005 IBM, John Stultz (johnstul@us.ibm.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * TODO WishList: + * o Allow clocksource drivers to be unregistered + * o get rid of clocksource_jiffies extern + */ + +#include +#include +#include +#include + +/* XXX - Would like a better way for initializing curr_clocksource */ +extern struct clocksource clocksource_jiffies; + +/*[Clocksource internal variables]--------- + * curr_clocksource: + * currently selected clocksource. Initialized to clocksource_jiffies. + * next_clocksource: + * pending next selected clocksource. + * clocksource_list: + * linked list with the registered clocksources + * clocksource_lock: + * protects manipulations to curr_clocksource and next_clocksource + * and the clocksource_list + * override_name: + * Name of the user-specified clocksource. + */ +static struct clocksource *curr_clocksource = &clocksource_jiffies; +static struct clocksource *next_clocksource; +static LIST_HEAD(clocksource_list); +static DEFINE_SPINLOCK(clocksource_lock); +static char override_name[32]; +static int finished_booting; + +/* clocksource_done_booting - Called near the end of bootup + * + * Hack to avoid lots of clocksource churn at boot time + */ +static int clocksource_done_booting(void) +{ + finished_booting = 1; + return 0; +} + +late_initcall(clocksource_done_booting); + +/** + * get_next_clocksource - Returns the selected clocksource + * + */ +struct clocksource *get_next_clocksource(void) +{ + unsigned long flags; + + spin_lock_irqsave(&clocksource_lock, flags); + if (next_clocksource && finished_booting) { + curr_clocksource = next_clocksource; + next_clocksource = NULL; + } + spin_unlock_irqrestore(&clocksource_lock, flags); + + return curr_clocksource; +} + +/** + * select_clocksource - Finds the best registered clocksource. + * + * Private function. Must hold clocksource_lock when called. + * + * Looks through the list of registered clocksources, returning + * the one with the highest rating value. If there is a clocksource + * name that matches the override string, it returns that clocksource. + */ +static struct clocksource *select_clocksource(void) +{ + struct clocksource *best = NULL; + struct list_head *tmp; + + list_for_each(tmp, &clocksource_list) { + struct clocksource *src; + + src = list_entry(tmp, struct clocksource, list); + if (!best) + best = src; + + /* check for override: */ + if (strlen(src->name) == strlen(override_name) && + !strcmp(src->name, override_name)) { + best = src; + break; + } + /* pick the highest rating: */ + if (src->rating > best->rating) + best = src; + } + + return best; +} + +/** + * is_registered_source - Checks if clocksource is registered + * @c: pointer to a clocksource + * + * Private helper function. Must hold clocksource_lock when called. + * + * Returns one if the clocksource is already registered, zero otherwise. + */ +static int is_registered_source(struct clocksource *c) +{ + int len = strlen(c->name); + struct list_head *tmp; + + list_for_each(tmp, &clocksource_list) { + struct clocksource *src; + + src = list_entry(tmp, struct clocksource, list); + if (strlen(src->name) == len && !strcmp(src->name, c->name)) + return 1; + } + + return 0; +} + +/** + * register_clocksource - Used to install new clocksources + * @t: clocksource to be registered + * + * Returns -EBUSY if registration fails, zero otherwise. + */ +int register_clocksource(struct clocksource *c) +{ + int ret = 0; + unsigned long flags; + + spin_lock_irqsave(&clocksource_lock, flags); + /* check if clocksource is already registered */ + if (is_registered_source(c)) { + printk("register_clocksource: Cannot register %s. " + "Already registered!", c->name); + ret = -EBUSY; + } else { + /* register it */ + list_add(&c->list, &clocksource_list); + /* scan the registered clocksources, and pick the best one */ + next_clocksource = select_clocksource(); + } + spin_unlock_irqrestore(&clocksource_lock, flags); + return ret; +} + +EXPORT_SYMBOL(register_clocksource); + +/** + * reselect_clocksource - Rescan list for next clocksource + * + * A quick helper function to be used if a clocksource changes its + * rating. Forces the clocksource list to be re-scaned for the best + * clocksource. + */ +void reselect_clocksource(void) +{ + unsigned long flags; + + spin_lock_irqsave(&clocksource_lock, flags); + next_clocksource = select_clocksource(); + spin_unlock_irqrestore(&clocksource_lock, flags); +} + +/** + * sysfs_show_current_clocksources - sysfs interface for current clocksource + * @dev: unused + * @buf: char buffer to be filled with clocksource list + * + * Provides sysfs interface for listing current clocksource. + */ +static ssize_t +sysfs_show_current_clocksources(struct sys_device *dev, char *buf) +{ + char *curr = buf; + + spin_lock_irq(&clocksource_lock); + curr += sprintf(curr, "%s ", curr_clocksource->name); + spin_unlock_irq(&clocksource_lock); + + curr += sprintf(curr, "\n"); + + return curr - buf; +} + +/** + * sysfs_override_clocksource - interface for manually overriding clocksource + * @dev: unused + * @buf: name of override clocksource + * @count: length of buffer + * + * Takes input from sysfs interface for manually overriding the default + * clocksource selction. + */ +static ssize_t sysfs_override_clocksource(struct sys_device *dev, + const char *buf, size_t count) +{ + size_t ret = count; + /* strings from sysfs write are not 0 terminated! */ + if (count >= sizeof(override_name)) + return -EINVAL; + + /* strip of \n: */ + if (buf[count-1] == '\n') + count--; + if (count < 1) + return -EINVAL; + + spin_lock_irq(&clocksource_lock); + + /* copy the name given: */ + memcpy(override_name, buf, count); + override_name[count] = 0; + + /* try to select it: */ + next_clocksource = select_clocksource(); + + spin_unlock_irq(&clocksource_lock); + + return ret; +} + +/** + * sysfs_show_available_clocksources - sysfs interface for listing clocksource + * @dev: unused + * @buf: char buffer to be filled with clocksource list + * + * Provides sysfs interface for listing registered clocksources + */ +static ssize_t +sysfs_show_available_clocksources(struct sys_device *dev, char *buf) +{ + struct list_head *tmp; + char *curr = buf; + + spin_lock_irq(&clocksource_lock); + list_for_each(tmp, &clocksource_list) { + struct clocksource *src; + + src = list_entry(tmp, struct clocksource, list); + curr += sprintf(curr, "%s ", src->name); + } + spin_unlock_irq(&clocksource_lock); + + curr += sprintf(curr, "\n"); + + return curr - buf; +} + +/* + * Sysfs setup bits: + */ +static SYSDEV_ATTR(current_clocksource, 0600, sysfs_show_current_clocksources, + sysfs_override_clocksource); + +static SYSDEV_ATTR(available_clocksource, 0600, + sysfs_show_available_clocksources, NULL); + +static struct sysdev_class clocksource_sysclass = { + set_kset_name("clocksource"), +}; + +static struct sys_device device_clocksource = { + .id = 0, + .cls = &clocksource_sysclass, +}; + +static int init_clocksource_sysfs(void) +{ + int error = sysdev_class_register(&clocksource_sysclass); + + if (!error) + error = sysdev_register(&device_clocksource); + if (!error) + error = sysdev_create_file( + &device_clocksource, + &attr_current_clocksource); + if (!error) + error = sysdev_create_file( + &device_clocksource, + &attr_available_clocksource); + return error; +} + +device_initcall(init_clocksource_sysfs); + +/** + * boot_override_clocksource - boot clock override + * @str: override name + * + * Takes a clocksource= boot argument and uses it + * as the clocksource override name. + */ +static int __init boot_override_clocksource(char* str) +{ + unsigned long flags; + spin_lock_irqsave(&clocksource_lock, flags); + if (str) + strlcpy(override_name, str, sizeof(override_name)); + spin_unlock_irqrestore(&clocksource_lock, flags); + return 1; +} + +__setup("clocksource=", boot_override_clocksource); + +/** + * boot_override_clock - Compatibility layer for deprecated boot option + * @str: override name + * + * DEPRECATED! Takes a clock= boot argument and uses it + * as the clocksource override name + */ +static int __init boot_override_clock(char* str) +{ + printk("Warning! clock= boot option is deprecated.\n"); + + return boot_override_clocksource(str); +} + +__setup("clock=", boot_override_clock); diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c new file mode 100644 index 00000000000..1fe8376e717 --- /dev/null +++ b/kernel/time/jiffies.c @@ -0,0 +1,73 @@ +/*********************************************************************** +* linux/kernel/time/jiffies.c +* +* This file contains the jiffies based clocksource. +* +* Copyright (C) 2004, 2005 IBM, John Stultz (johnstul@us.ibm.com) +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2 of the License, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +* +************************************************************************/ +#include +#include +#include + +/* The Jiffies based clocksource is the lowest common + * denominator clock source which should function on + * all systems. It has the same coarse resolution as + * the timer interrupt frequency HZ and it suffers + * inaccuracies caused by missed or lost timer + * interrupts and the inability for the timer + * interrupt hardware to accuratly tick at the + * requested HZ value. It is also not reccomended + * for "tick-less" systems. + */ +#define NSEC_PER_JIFFY ((u32)((((u64)NSEC_PER_SEC)<<8)/ACTHZ)) + +/* Since jiffies uses a simple NSEC_PER_JIFFY multiplier + * conversion, the .shift value could be zero. However + * this would make NTP adjustments impossible as they are + * in units of 1/2^.shift. Thus we use JIFFIES_SHIFT to + * shift both the nominator and denominator the same + * amount, and give ntp adjustments in units of 1/2^8 + * + * The value 8 is somewhat carefully chosen, as anything + * larger can result in overflows. NSEC_PER_JIFFY grows as + * HZ shrinks, so values greater then 8 overflow 32bits when + * HZ=100. + */ +#define JIFFIES_SHIFT 8 + +static cycle_t jiffies_read(void) +{ + return (cycle_t) jiffies; +} + +struct clocksource clocksource_jiffies = { + .name = "jiffies", + .rating = 0, /* lowest rating*/ + .read = jiffies_read, + .mask = 0xffffffff, /*32bits*/ + .mult = NSEC_PER_JIFFY << JIFFIES_SHIFT, /* details above */ + .shift = JIFFIES_SHIFT, + .is_continuous = 0, /* tick based, not free running */ +}; + +static int __init init_jiffies_clocksource(void) +{ + return register_clocksource(&clocksource_jiffies); +} + +module_init(init_jiffies_clocksource); -- cgit v1.2.3 From ad596171ed635c51a9eef829187af100cbf8dcf7 Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:06 -0700 Subject: [PATCH] Time: Use clocksource infrastructure for update_wall_time Modify the update_wall_time function so it increments time using the clocksource abstraction instead of jiffies. Since the only clocksource driver currently provided is the jiffies clocksource, this should result in no functional change. Additionally, a timekeeping_init and timekeeping_resume function has been added to initialize and maintain some of the new timekeping state. [hirofumi@mail.parknet.co.jp: fixlet] Signed-off-by: John Stultz Signed-off-by: OGAWA Hirofumi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/time.h | 2 + init/main.c | 1 + kernel/Makefile | 1 + kernel/time/clocksource.c | 4 +- kernel/timer.c | 93 ++++++++++++++++++++++++++++++++++++++++------- 5 files changed, 86 insertions(+), 15 deletions(-) diff --git a/include/linux/time.h b/include/linux/time.h index 0cd696cee99..88d3b812841 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -77,6 +77,8 @@ extern struct timespec xtime; extern struct timespec wall_to_monotonic; extern seqlock_t xtime_lock; +void timekeeping_init(void); + static inline unsigned long get_seconds(void) { return xtime.tv_sec; diff --git a/init/main.c b/init/main.c index f715b9b8975..9a970d317ea 100644 --- a/init/main.c +++ b/init/main.c @@ -490,6 +490,7 @@ asmlinkage void __init start_kernel(void) hrtimers_init(); softirq_init(); time_init(); + timekeeping_init(); /* * HACK ALERT! This is early. We're enabling the console before diff --git a/kernel/Makefile b/kernel/Makefile index f6ef00f4f90..bc4b8a7161f 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -10,6 +10,7 @@ obj-y = sched.o fork.o exec_domain.o panic.o printk.o profile.o \ kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \ hrtimer.o +obj-y += time/ obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o obj-$(CONFIG_FUTEX) += futex.o ifeq ($(CONFIG_COMPAT),y) diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 95dd2200a10..4288bfa12c3 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -56,7 +56,7 @@ static int finished_booting; * * Hack to avoid lots of clocksource churn at boot time */ -static int clocksource_done_booting(void) +static int __init clocksource_done_booting(void) { finished_booting = 1; return 0; @@ -289,7 +289,7 @@ static struct sys_device device_clocksource = { .cls = &clocksource_sysclass, }; -static int init_clocksource_sysfs(void) +static int __init init_clocksource_sysfs(void) { int error = sysdev_class_register(&clocksource_sysclass); diff --git a/kernel/timer.c b/kernel/timer.c index eb97371b87d..524c7f63836 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -792,24 +792,93 @@ u64 current_tick_length(void) return ((u64) delta_nsec << (SHIFT_SCALE - 10)) + time_adj; } +/* XXX - all of this timekeeping code should be later moved to time.c */ +#include +static struct clocksource *clock; /* pointer to current clocksource */ +static cycle_t last_clock_cycle; /* cycle value at last update_wall_time */ /* - * Using a loop looks inefficient, but "ticks" is - * usually just one (we shouldn't be losing ticks, - * we're doing this this way mainly for interrupt - * latency reasons, not because we think we'll - * have lots of lost timer ticks + * timekeeping_init - Initializes the clocksource and common timekeeping values */ -static void update_wall_time(unsigned long ticks) +void __init timekeeping_init(void) { - do { - ticks--; + unsigned long flags; + + write_seqlock_irqsave(&xtime_lock, flags); + clock = get_next_clocksource(); + calculate_clocksource_interval(clock, tick_nsec); + last_clock_cycle = read_clocksource(clock); + ntp_clear(); + write_sequnlock_irqrestore(&xtime_lock, flags); +} + + +/* + * timekeeping_resume - Resumes the generic timekeeping subsystem. + * @dev: unused + * + * This is for the generic clocksource timekeeping. + * xtime/wall_to_monotonic/jiffies/wall_jiffies/etc are + * still managed by arch specific suspend/resume code. + */ +static int timekeeping_resume(struct sys_device *dev) +{ + unsigned long flags; + + write_seqlock_irqsave(&xtime_lock, flags); + /* restart the last cycle value */ + last_clock_cycle = read_clocksource(clock); + write_sequnlock_irqrestore(&xtime_lock, flags); + return 0; +} + +/* sysfs resume/suspend bits for timekeeping */ +static struct sysdev_class timekeeping_sysclass = { + .resume = timekeeping_resume, + set_kset_name("timekeeping"), +}; + +static struct sys_device device_timer = { + .id = 0, + .cls = &timekeeping_sysclass, +}; + +static int __init timekeeping_init_device(void) +{ + int error = sysdev_class_register(&timekeeping_sysclass); + if (!error) + error = sysdev_register(&device_timer); + return error; +} + +device_initcall(timekeeping_init_device); + +/* + * update_wall_time - Uses the current clocksource to increment the wall time + * + * Called from the timer interrupt, must hold a write on xtime_lock. + */ +static void update_wall_time(void) +{ + cycle_t now, offset; + + now = read_clocksource(clock); + offset = (now - last_clock_cycle)&clock->mask; + + /* normally this loop will run just once, however in the + * case of lost or late ticks, it will accumulate correctly. + */ + while (offset > clock->interval_cycles) { + /* accumulate one interval */ + last_clock_cycle += clock->interval_cycles; + offset -= clock->interval_cycles; + update_wall_time_one_tick(); if (xtime.tv_nsec >= 1000000000) { xtime.tv_nsec -= 1000000000; xtime.tv_sec++; second_overflow(); } - } while (ticks); + } } /* @@ -915,10 +984,8 @@ static inline void update_times(void) unsigned long ticks; ticks = jiffies - wall_jiffies; - if (ticks) { - wall_jiffies += ticks; - update_wall_time(ticks); - } + wall_jiffies += ticks; + update_wall_time(); calc_load(ticks); } -- cgit v1.2.3 From 260a42309b31cbc54eb4b6b85649e412bcad053f Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:07 -0700 Subject: [PATCH] Time: Let user request precision from current_tick_length() Change the current_tick_length() function so it takes an argument which specifies how much precision to return in shifted nanoseconds. This provides a simple way to convert between NTPs internal nanoseconds shifted by (SHIFT_SCALE - 10) to other shifted nanosecond units that are used by the clocksource abstraction. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/kernel/time.c | 2 +- include/linux/timex.h | 2 +- kernel/timer.c | 21 +++++++++++++++++---- 3 files changed, 19 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index d20907561f4..742f07a6316 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -534,7 +534,7 @@ static __inline__ void timer_recalc_offset(u64 cur_tb) if (__USE_RTC()) return; - tlen = current_tick_length(); + tlen = current_tick_length(SHIFT_SCALE - 10); offset = cur_tb - do_gtod.varp->tb_orig_stamp; if (tlen == last_tick_len && offset < 0x80000000u) return; diff --git a/include/linux/timex.h b/include/linux/timex.h index 34d3ccff7bb..1ba3071fcb8 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -304,7 +304,7 @@ time_interpolator_reset(void) #endif /* !CONFIG_TIME_INTERPOLATION */ /* Returns how long ticks are at present, in ns / 2^(SHIFT_SCALE-10). */ -extern u64 current_tick_length(void); +extern u64 current_tick_length(long); extern int do_adjtimex(struct timex *); diff --git a/kernel/timer.c b/kernel/timer.c index 524c7f63836..623f9ea198d 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -780,16 +780,29 @@ static void update_wall_time_one_tick(void) * Return how long ticks are at the moment, that is, how much time * update_wall_time_one_tick will add to xtime next time we call it * (assuming no calls to do_adjtimex in the meantime). - * The return value is in fixed-point nanoseconds with SHIFT_SCALE-10 - * bits to the right of the binary point. + * The return value is in fixed-point nanoseconds shifted by the + * specified number of bits to the right of the binary point. * This function has no side-effects. */ -u64 current_tick_length(void) +u64 current_tick_length(long shift) { long delta_nsec; + u64 ret; + /* calculate the finest interval NTP will allow. + * ie: nanosecond value shifted by (SHIFT_SCALE - 10) + */ delta_nsec = tick_nsec + adjtime_adjustment() * 1000; - return ((u64) delta_nsec << (SHIFT_SCALE - 10)) + time_adj; + ret = ((u64) delta_nsec << (SHIFT_SCALE - 10)) + time_adj; + + /* convert from (SHIFT_SCALE - 10) to specified shift scale: */ + shift = shift - (SHIFT_SCALE - 10); + if (shift < 0) + ret >>= -shift; + else + ret <<= shift; + + return ret; } /* XXX - all of this timekeeping code should be later moved to time.c */ -- cgit v1.2.3 From 5eb6d20533d14a432df714520939a6181e28f099 Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:07 -0700 Subject: [PATCH] Time: Use clocksource abstraction for NTP adjustments Instead of incrementing xtime by tick_nsec + ntp adjustments, use the clocksource abstraction to increment and scale time. Using the clocksource abstraction allows other clocksources to be used consistently in the face of late or lost ticks, while preserving the existing behavior via the jiffies clocksource. This removes the need to keep time_phase adjustments as we just use the current_tick_length() function as the NTP interface and accumulate time using shifted nanoseconds. The basics of this design was by Roman Zippel, however it is my own interpretation and implementation, so the credit should go to him and the blame to me. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/clocksource.h | 97 +++++++++++++++++++++++++++++++++++++++++++++ kernel/timer.c | 47 +++++++++++++--------- 2 files changed, 125 insertions(+), 19 deletions(-) diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index c4187cda0ee..c4739c4e303 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -173,6 +173,103 @@ static inline void calculate_clocksource_interval(struct clocksource *c, c->interval_snsecs = (u64)c->interval_cycles * c->mult; } + +/** + * error_aproximation - calculates an error adjustment for a given error + * + * @error: Error value (unsigned) + * @unit: Adjustment unit + * + * For a given error value, this function takes the adjustment unit + * and uses binary approximation to return a power of two adjustment value. + * + * This function is only for use by the the make_ntp_adj() function + * and you must hold a write on the xtime_lock when calling. + */ +static inline int error_aproximation(u64 error, u64 unit) +{ + static int saved_adj = 0; + u64 adjusted_unit = unit << saved_adj; + + if (error > (adjusted_unit * 2)) { + /* large error, so increment the adjustment factor */ + saved_adj++; + } else if (error > adjusted_unit) { + /* just right, don't touch it */ + } else if (saved_adj) { + /* small error, so drop the adjustment factor */ + saved_adj--; + return 0; + } + + return saved_adj; +} + + +/** + * make_ntp_adj - Adjusts the specified clocksource for a given error + * + * @clock: Pointer to clock to be adjusted + * @cycles_delta: Current unacounted cycle delta + * @error: Pointer to current error value + * + * Returns clock shifted nanosecond adjustment to be applied against + * the accumulated time value (ie: xtime). + * + * If the error value is large enough, this function calulates the + * (power of two) adjustment value, and adjusts the clock's mult and + * interval_snsecs values accordingly. + * + * However, since there may be some unaccumulated cycles, to avoid + * time inconsistencies we must adjust the accumulation value + * accordingly. + * + * This is not very intuitive, so the following proof should help: + * The basic timeofday algorithm: base + cycle * mult + * Thus: + * new_base + cycle * new_mult = old_base + cycle * old_mult + * new_base = old_base + cycle * old_mult - cycle * new_mult + * new_base = old_base + cycle * (old_mult - new_mult) + * new_base - old_base = cycle * (old_mult - new_mult) + * base_delta = cycle * (old_mult - new_mult) + * base_delta = cycle * (mult_delta) + * + * Where mult_delta is the adjustment value made to mult + * + */ +static inline s64 make_ntp_adj(struct clocksource *clock, + cycles_t cycles_delta, s64* error) +{ + s64 ret = 0; + if (*error > ((s64)clock->interval_cycles+1)/2) { + /* calculate adjustment value */ + int adjustment = error_aproximation(*error, + clock->interval_cycles); + /* adjust clock */ + clock->mult += 1 << adjustment; + clock->interval_snsecs += clock->interval_cycles << adjustment; + + /* adjust the base and error for the adjustment */ + ret = -(cycles_delta << adjustment); + *error -= clock->interval_cycles << adjustment; + /* XXX adj error for cycle_delta offset? */ + } else if ((-(*error)) > ((s64)clock->interval_cycles+1)/2) { + /* calculate adjustment value */ + int adjustment = error_aproximation(-(*error), + clock->interval_cycles); + /* adjust clock */ + clock->mult -= 1 << adjustment; + clock->interval_snsecs -= clock->interval_cycles << adjustment; + + /* adjust the base and error for the adjustment */ + ret = cycles_delta << adjustment; + *error += clock->interval_cycles << adjustment; + /* XXX adj error for cycle_delta offset? */ + } + return ret; +} + + /* used to install a new clocksource */ int register_clocksource(struct clocksource*); void reselect_clocksource(void); diff --git a/kernel/timer.c b/kernel/timer.c index 623f9ea198d..6811436a031 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -597,7 +597,6 @@ long time_tolerance = MAXFREQ; /* frequency tolerance (ppm) */ long time_precision = 1; /* clock precision (us) */ long time_maxerror = NTP_PHASE_LIMIT; /* maximum error (us) */ long time_esterror = NTP_PHASE_LIMIT; /* estimated error (us) */ -static long time_phase; /* phase offset (scaled us) */ long time_freq = (((NSEC_PER_SEC + HZ/2) % HZ - HZ/2) << SHIFT_USEC) / NSEC_PER_USEC; /* frequency offset (scaled ppm)*/ static long time_adj; /* tick adjust (scaled 1 / HZ) */ @@ -747,27 +746,14 @@ static long adjtime_adjustment(void) } /* in the NTP reference this is called "hardclock()" */ -static void update_wall_time_one_tick(void) +static void update_ntp_one_tick(void) { - long time_adjust_step, delta_nsec; + long time_adjust_step; time_adjust_step = adjtime_adjustment(); if (time_adjust_step) /* Reduce by this step the amount of time left */ time_adjust -= time_adjust_step; - delta_nsec = tick_nsec + time_adjust_step * 1000; - /* - * Advance the phase, once it gets to one microsecond, then - * advance the tick more. - */ - time_phase += time_adj; - if ((time_phase >= FINENSEC) || (time_phase <= -FINENSEC)) { - long ltemp = shift_right(time_phase, (SHIFT_SCALE - 10)); - time_phase -= ltemp << (SHIFT_SCALE - 10); - delta_nsec += ltemp; - } - xtime.tv_nsec += delta_nsec; - time_interpolator_update(delta_nsec); /* Changes by adjtime() do not take effect till next tick. */ if (time_next_adjust != 0) { @@ -872,8 +858,13 @@ device_initcall(timekeeping_init_device); */ static void update_wall_time(void) { + static s64 remainder_snsecs, error; + s64 snsecs_per_sec; cycle_t now, offset; + snsecs_per_sec = (s64)NSEC_PER_SEC << clock->shift; + remainder_snsecs += (s64)xtime.tv_nsec << clock->shift; + now = read_clocksource(clock); offset = (now - last_clock_cycle)&clock->mask; @@ -881,17 +872,35 @@ static void update_wall_time(void) * case of lost or late ticks, it will accumulate correctly. */ while (offset > clock->interval_cycles) { + /* get the ntp interval in clock shifted nanoseconds */ + s64 ntp_snsecs = current_tick_length(clock->shift); + /* accumulate one interval */ + remainder_snsecs += clock->interval_snsecs; last_clock_cycle += clock->interval_cycles; offset -= clock->interval_cycles; - update_wall_time_one_tick(); - if (xtime.tv_nsec >= 1000000000) { - xtime.tv_nsec -= 1000000000; + /* interpolator bits */ + time_interpolator_update(clock->interval_snsecs + >> clock->shift); + /* increment the NTP state machine */ + update_ntp_one_tick(); + + /* accumulate error between NTP and clock interval */ + error += (ntp_snsecs - (s64)clock->interval_snsecs); + + /* correct the clock when NTP error is too big */ + remainder_snsecs += make_ntp_adj(clock, offset, &error); + + if (remainder_snsecs >= snsecs_per_sec) { + remainder_snsecs -= snsecs_per_sec; xtime.tv_sec++; second_overflow(); } } + /* store full nanoseconds into xtime */ + xtime.tv_nsec = remainder_snsecs >> clock->shift; + remainder_snsecs -= (s64)xtime.tv_nsec << clock->shift; } /* -- cgit v1.2.3 From cf3c769b4b0dd1146da84d5cf045dcfe53bd0f13 Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:08 -0700 Subject: [PATCH] Time: Introduce arch generic time accessors Introduces clocksource switching code and the arch generic time accessor functions that use the clocksource infrastructure. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/time.h | 15 +++++ kernel/time.c | 2 + kernel/timer.c | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 187 insertions(+) diff --git a/include/linux/time.h b/include/linux/time.h index 88d3b812841..65dd85b2105 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -102,6 +102,7 @@ extern int do_getitimer(int which, struct itimerval *value); extern void getnstimeofday(struct timespec *tv); extern struct timespec timespec_trunc(struct timespec t, unsigned gran); +extern int timekeeping_is_continuous(void); /** * timespec_to_ns - Convert timespec to nanoseconds @@ -144,6 +145,20 @@ extern struct timespec ns_to_timespec(const s64 nsec); */ extern struct timeval ns_to_timeval(const s64 nsec); +/** + * timespec_add_ns - Adds nanoseconds to a timespec + * @a: pointer to timespec to be incremented + * @ns: unsigned nanoseconds value to be added + */ +static inline void timespec_add_ns(struct timespec *a, u64 ns) +{ + ns += a->tv_nsec; + while(unlikely(ns >= NSEC_PER_SEC)) { + ns -= NSEC_PER_SEC; + a->tv_sec++; + } + a->tv_nsec = ns; +} #endif /* __KERNEL__ */ #define NFDBITS __NFDBITS diff --git a/kernel/time.c b/kernel/time.c index b00ddc71ced..5bd48974764 100644 --- a/kernel/time.c +++ b/kernel/time.c @@ -523,6 +523,7 @@ EXPORT_SYMBOL(do_gettimeofday); #else +#ifndef CONFIG_GENERIC_TIME /* * Simulate gettimeofday using do_gettimeofday which only allows a timeval * and therefore only yields usec accuracy @@ -537,6 +538,7 @@ void getnstimeofday(struct timespec *tv) } EXPORT_SYMBOL_GPL(getnstimeofday); #endif +#endif /* Converts Gregorian date to seconds since 1970-01-01 00:00:00. * Assumes input in normal date format, i.e. 1980-12-31 23:59:59 diff --git a/kernel/timer.c b/kernel/timer.c index 6811436a031..e5adb9e2e7a 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -795,6 +795,169 @@ u64 current_tick_length(long shift) #include static struct clocksource *clock; /* pointer to current clocksource */ static cycle_t last_clock_cycle; /* cycle value at last update_wall_time */ + +#ifdef CONFIG_GENERIC_TIME +/** + * __get_nsec_offset - Returns nanoseconds since last call to periodic_hook + * + * private function, must hold xtime_lock lock when being + * called. Returns the number of nanoseconds since the + * last call to update_wall_time() (adjusted by NTP scaling) + */ +static inline s64 __get_nsec_offset(void) +{ + cycle_t cycle_now, cycle_delta; + s64 ns_offset; + + /* read clocksource: */ + cycle_now = read_clocksource(clock); + + /* calculate the delta since the last update_wall_time: */ + cycle_delta = (cycle_now - last_clock_cycle) & clock->mask; + + /* convert to nanoseconds: */ + ns_offset = cyc2ns(clock, cycle_delta); + + return ns_offset; +} + +/** + * __get_realtime_clock_ts - Returns the time of day in a timespec + * @ts: pointer to the timespec to be set + * + * Returns the time of day in a timespec. Used by + * do_gettimeofday() and get_realtime_clock_ts(). + */ +static inline void __get_realtime_clock_ts(struct timespec *ts) +{ + unsigned long seq; + s64 nsecs; + + do { + seq = read_seqbegin(&xtime_lock); + + *ts = xtime; + nsecs = __get_nsec_offset(); + + } while (read_seqretry(&xtime_lock, seq)); + + timespec_add_ns(ts, nsecs); +} + +/** + * get_realtime_clock_ts - Returns the time of day in a timespec + * @ts: pointer to the timespec to be set + * + * Returns the time of day in a timespec. + */ +void getnstimeofday(struct timespec *ts) +{ + __get_realtime_clock_ts(ts); +} + +EXPORT_SYMBOL(getnstimeofday); + +/** + * do_gettimeofday - Returns the time of day in a timeval + * @tv: pointer to the timeval to be set + * + * NOTE: Users should be converted to using get_realtime_clock_ts() + */ +void do_gettimeofday(struct timeval *tv) +{ + struct timespec now; + + __get_realtime_clock_ts(&now); + tv->tv_sec = now.tv_sec; + tv->tv_usec = now.tv_nsec/1000; +} + +EXPORT_SYMBOL(do_gettimeofday); +/** + * do_settimeofday - Sets the time of day + * @tv: pointer to the timespec variable containing the new time + * + * Sets the time of day to the new time and update NTP and notify hrtimers + */ +int do_settimeofday(struct timespec *tv) +{ + unsigned long flags; + time_t wtm_sec, sec = tv->tv_sec; + long wtm_nsec, nsec = tv->tv_nsec; + + if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) + return -EINVAL; + + write_seqlock_irqsave(&xtime_lock, flags); + + nsec -= __get_nsec_offset(); + + wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); + wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); + + set_normalized_timespec(&xtime, sec, nsec); + set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); + + ntp_clear(); + + write_sequnlock_irqrestore(&xtime_lock, flags); + + /* signal hrtimers about time change */ + clock_was_set(); + + return 0; +} + +EXPORT_SYMBOL(do_settimeofday); + +/** + * change_clocksource - Swaps clocksources if a new one is available + * + * Accumulates current time interval and initializes new clocksource + */ +static int change_clocksource(void) +{ + struct clocksource *new; + cycle_t now; + u64 nsec; + new = get_next_clocksource(); + if (clock != new) { + now = read_clocksource(new); + nsec = __get_nsec_offset(); + timespec_add_ns(&xtime, nsec); + + clock = new; + last_clock_cycle = now; + printk(KERN_INFO "Time: %s clocksource has been installed.\n", + clock->name); + return 1; + } else if (clock->update_callback) { + return clock->update_callback(); + } + return 0; +} +#else +#define change_clocksource() (0) +#endif + +/** + * timeofday_is_continuous - check to see if timekeeping is free running + */ +int timekeeping_is_continuous(void) +{ + unsigned long seq; + int ret; + + do { + seq = read_seqbegin(&xtime_lock); + + ret = clock->is_continuous; + + } while (read_seqretry(&xtime_lock, seq)); + + return ret; +} + /* * timekeeping_init - Initializes the clocksource and common timekeeping values */ @@ -901,6 +1064,13 @@ static void update_wall_time(void) /* store full nanoseconds into xtime */ xtime.tv_nsec = remainder_snsecs >> clock->shift; remainder_snsecs -= (s64)xtime.tv_nsec << clock->shift; + + /* check to see if there is a new clocksource to use */ + if (change_clocksource()) { + error = 0; + remainder_snsecs = 0; + calculate_clocksource_interval(clock, tick_nsec); + } } /* -- cgit v1.2.3 From ede65f3926a284f07765b94d6d9fd10d63791174 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 26 Jun 2006 00:25:09 -0700 Subject: [PATCH] hangcheck: remove monotomic_clock on x86 John's about to nuke x86's monotonic clock without grepping for it first. The patch lamely borrows the ppc64 code for x86. hangcheck-timer shouldn't be doing it this way a) HAVE_MONOTONIC should be CONFIG_MONOTONIC_CLOCK and it should be defined in arch/xxx/Kconfig. b) That ifdef tangle shouldn't be in hangcheck-timer.c. It should be using arch-provided helper functions, which CONFIG_MONOTONIC_CLOCK-enabling architectures implement in arch/something.c Cc: john stultz Acked-by: Joel Becker Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hangcheck-timer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/char/hangcheck-timer.c b/drivers/char/hangcheck-timer.c index ac626418b32..d69f2ad9a67 100644 --- a/drivers/char/hangcheck-timer.c +++ b/drivers/char/hangcheck-timer.c @@ -117,12 +117,12 @@ __setup("hcheck_reboot", hangcheck_parse_reboot); __setup("hcheck_dump_tasks", hangcheck_parse_dump_tasks); #endif /* not MODULE */ -#if defined(CONFIG_X86) || defined(CONFIG_S390) +#if defined(CONFIG_X86_64) || defined(CONFIG_S390) # define HAVE_MONOTONIC # define TIMER_FREQ 1000000000ULL #elif defined(CONFIG_IA64) # define TIMER_FREQ ((unsigned long long)local_cpu_data->itc_freq) -#elif defined(CONFIG_PPC64) +#else # define TIMER_FREQ (HZ*loops_per_jiffy) #endif -- cgit v1.2.3 From 8d016ef1380a2a9a5ca5742ede04334199868f82 Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:09 -0700 Subject: [PATCH] Time: i386 Conversion - part 1: Move timer_pit.c to i8253.c A simple cleanup for the i386 arch in preparation of moving to the generic timeofday infrastructure. It simply moves the PIT initialization code, locks, and other code we want to keep from some code from timer_pit.c (which will be removed) to i8253.c. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/Makefile | 2 +- arch/i386/kernel/i8253.c | 32 ++++++++++++++++++++++++++++++++ arch/i386/kernel/time.c | 5 ----- arch/i386/kernel/timers/timer_pit.c | 13 ------------- 4 files changed, 33 insertions(+), 19 deletions(-) create mode 100644 arch/i386/kernel/i8253.c diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 96fb8a020af..4142d69a533 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ pci-dma.o i386_ksyms.o i387.o bootflag.o \ - quirks.o i8237.o topology.o alternative.o + quirks.o i8237.o topology.o alternative.o i8253.o obj-y += cpu/ obj-y += timers/ diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c new file mode 100644 index 00000000000..29cb2eb3436 --- /dev/null +++ b/arch/i386/kernel/i8253.c @@ -0,0 +1,32 @@ +/* + * i8253.c 8253/PIT functions + * + */ +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "io_ports.h" + +DEFINE_SPINLOCK(i8253_lock); +EXPORT_SYMBOL(i8253_lock); + +void setup_pit_timer(void) +{ + unsigned long flags; + + spin_lock_irqsave(&i8253_lock, flags); + outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */ + udelay(10); + outb_p(LATCH & 0xff , PIT_CH0); /* LSB */ + udelay(10); + outb(LATCH >> 8 , PIT_CH0); /* MSB */ + spin_unlock_irqrestore(&i8253_lock, flags); +} diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c index 9d307475985..796e5faa6ca 100644 --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c @@ -82,11 +82,6 @@ extern unsigned long wall_jiffies; DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -#include - -DEFINE_SPINLOCK(i8253_lock); -EXPORT_SYMBOL(i8253_lock); - struct timer_opts *cur_timer __read_mostly = &timer_none; /* diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c index b9b6bd56b9b..44cbdf9bda9 100644 --- a/arch/i386/kernel/timers/timer_pit.c +++ b/arch/i386/kernel/timers/timer_pit.c @@ -162,16 +162,3 @@ struct init_timer_opts __initdata timer_pit_init = { .init = init_pit, .opts = &timer_pit, }; - -void setup_pit_timer(void) -{ - unsigned long flags; - - spin_lock_irqsave(&i8253_lock, flags); - outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */ - udelay(10); - outb_p(LATCH & 0xff , PIT_CH0); /* LSB */ - udelay(10); - outb(LATCH >> 8 , PIT_CH0); /* MSB */ - spin_unlock_irqrestore(&i8253_lock, flags); -} -- cgit v1.2.3 From 539eb11e6e904f2cd4f62908cc5e44d724879721 Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:10 -0700 Subject: [PATCH] Time: i386 Conversion - part 2: Rework TSC Support As part of the i386 conversion to the generic timekeeping infrastructure, this introduces a new tsc.c file. The code in this file replaces the TSC initialization, management and access code currently in timer_tsc.c (which will be removed) that we want to preserve. The code also introduces the following functionality: o tsc_khz: like cpu_khz but stores the TSC frequency on systems that do not change TSC frequency w/ CPU frequency o check/mark_tsc_unstable: accessor/modifier flag for TSC timekeeping usability o minor cleanups to calibration math. This patch also includes a one line __cpuinitdata fix from Zwane Mwaikambo. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/Makefile | 2 +- arch/i386/kernel/numaq.c | 10 +- arch/i386/kernel/setup.c | 1 + arch/i386/kernel/timers/timer_tsc.c | 178 ---------------- arch/i386/kernel/tsc.c | 316 ++++++++++++++++++++++++++++ drivers/acpi/processor_idle.c | 9 + include/asm-i386/mach-default/mach_timer.h | 4 +- include/asm-i386/mach-summit/mach_mpparse.h | 3 + include/asm-i386/timex.h | 34 +-- include/asm-i386/tsc.h | 49 +++++ 10 files changed, 389 insertions(+), 217 deletions(-) create mode 100644 arch/i386/kernel/tsc.c create mode 100644 include/asm-i386/tsc.h diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 4142d69a533..ca70d61ea83 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ pci-dma.o i386_ksyms.o i387.o bootflag.o \ - quirks.o i8237.o topology.o alternative.o i8253.o + quirks.o i8237.o topology.o alternative.o i8253.o tsc.o obj-y += cpu/ obj-y += timers/ diff --git a/arch/i386/kernel/numaq.c b/arch/i386/kernel/numaq.c index 5f5b075f860..0caf14652ba 100644 --- a/arch/i386/kernel/numaq.c +++ b/arch/i386/kernel/numaq.c @@ -79,10 +79,12 @@ int __init get_memcfg_numaq(void) return 1; } -static int __init numaq_dsc_disable(void) +static int __init numaq_tsc_disable(void) { - printk(KERN_DEBUG "NUMAQ: disabling TSC\n"); - tsc_disable = 1; + if (num_online_nodes() > 1) { + printk(KERN_DEBUG "NUMAQ: disabling TSC\n"); + tsc_disable = 1; + } return 0; } -core_initcall(numaq_dsc_disable); +arch_initcall(numaq_tsc_disable); diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 6bef9273733..4a65040cc62 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -1575,6 +1575,7 @@ void __init setup_arch(char **cmdline_p) conswitchp = &dummy_con; #endif #endif + tsc_init(); } static __init int add_pcspkr(void) diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c index f1187ddb0d0..243ec048407 100644 --- a/arch/i386/kernel/timers/timer_tsc.c +++ b/arch/i386/kernel/timers/timer_tsc.c @@ -32,10 +32,6 @@ static unsigned long hpet_last; static struct timer_opts timer_tsc; #endif -static inline void cpufreq_delayed_get(void); - -int tsc_disable __devinitdata = 0; - static int use_tsc; /* Number of usecs that the last interrupt was delayed */ static int delay_at_last_interrupt; @@ -144,30 +140,6 @@ static unsigned long long monotonic_clock_tsc(void) return base + cycles_2_ns(this_offset - last_offset); } -/* - * Scheduler clock - returns current time in nanosec units. - */ -unsigned long long sched_clock(void) -{ - unsigned long long this_offset; - - /* - * In the NUMA case we dont use the TSC as they are not - * synchronized across all CPUs. - */ -#ifndef CONFIG_NUMA - if (!use_tsc) -#endif - /* no locking but a rare wrong value is not a big deal */ - return jiffies_64 * (1000000000 / HZ); - - /* Read the Time Stamp Counter */ - rdtscll(this_offset); - - /* return the value in ns */ - return cycles_2_ns(this_offset); -} - static void delay_tsc(unsigned long loops) { unsigned long bclock, now; @@ -231,136 +203,6 @@ static void mark_offset_tsc_hpet(void) } #endif - -#ifdef CONFIG_CPU_FREQ -#include - -static unsigned int cpufreq_delayed_issched = 0; -static unsigned int cpufreq_init = 0; -static struct work_struct cpufreq_delayed_get_work; - -static void handle_cpufreq_delayed_get(void *v) -{ - unsigned int cpu; - for_each_online_cpu(cpu) { - cpufreq_get(cpu); - } - cpufreq_delayed_issched = 0; -} - -/* if we notice lost ticks, schedule a call to cpufreq_get() as it tries - * to verify the CPU frequency the timing core thinks the CPU is running - * at is still correct. - */ -static inline void cpufreq_delayed_get(void) -{ - if (cpufreq_init && !cpufreq_delayed_issched) { - cpufreq_delayed_issched = 1; - printk(KERN_DEBUG "Losing some ticks... checking if CPU frequency changed.\n"); - schedule_work(&cpufreq_delayed_get_work); - } -} - -/* If the CPU frequency is scaled, TSC-based delays will need a different - * loops_per_jiffy value to function properly. - */ - -static unsigned int ref_freq = 0; -static unsigned long loops_per_jiffy_ref = 0; - -#ifndef CONFIG_SMP -static unsigned long fast_gettimeoffset_ref = 0; -static unsigned int cpu_khz_ref = 0; -#endif - -static int -time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, - void *data) -{ - struct cpufreq_freqs *freq = data; - - if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE) - write_seqlock_irq(&xtime_lock); - if (!ref_freq) { - if (!freq->old){ - ref_freq = freq->new; - goto end; - } - ref_freq = freq->old; - loops_per_jiffy_ref = cpu_data[freq->cpu].loops_per_jiffy; -#ifndef CONFIG_SMP - fast_gettimeoffset_ref = fast_gettimeoffset_quotient; - cpu_khz_ref = cpu_khz; -#endif - } - - if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) || - (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) || - (val == CPUFREQ_RESUMECHANGE)) { - if (!(freq->flags & CPUFREQ_CONST_LOOPS)) - cpu_data[freq->cpu].loops_per_jiffy = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new); -#ifndef CONFIG_SMP - if (cpu_khz) - cpu_khz = cpufreq_scale(cpu_khz_ref, ref_freq, freq->new); - if (use_tsc) { - if (!(freq->flags & CPUFREQ_CONST_LOOPS)) { - fast_gettimeoffset_quotient = cpufreq_scale(fast_gettimeoffset_ref, freq->new, ref_freq); - set_cyc2ns_scale(cpu_khz); - } - } -#endif - } - -end: - if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE) - write_sequnlock_irq(&xtime_lock); - - return 0; -} - -static struct notifier_block time_cpufreq_notifier_block = { - .notifier_call = time_cpufreq_notifier -}; - - -static int __init cpufreq_tsc(void) -{ - int ret; - INIT_WORK(&cpufreq_delayed_get_work, handle_cpufreq_delayed_get, NULL); - ret = cpufreq_register_notifier(&time_cpufreq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); - if (!ret) - cpufreq_init = 1; - return ret; -} -core_initcall(cpufreq_tsc); - -#else /* CONFIG_CPU_FREQ */ -static inline void cpufreq_delayed_get(void) { return; } -#endif - -int recalibrate_cpu_khz(void) -{ -#ifndef CONFIG_SMP - unsigned int cpu_khz_old = cpu_khz; - - if (cpu_has_tsc) { - local_irq_disable(); - init_cpu_khz(); - local_irq_enable(); - cpu_data[0].loops_per_jiffy = - cpufreq_scale(cpu_data[0].loops_per_jiffy, - cpu_khz_old, - cpu_khz); - return 0; - } else - return -ENODEV; -#else - return -ENODEV; -#endif -} -EXPORT_SYMBOL(recalibrate_cpu_khz); - static void mark_offset_tsc(void) { unsigned long lost,delay; @@ -451,9 +293,6 @@ static void mark_offset_tsc(void) clock_fallback(); } - /* ... but give the TSC a fair chance */ - if (lost_count > 25) - cpufreq_delayed_get(); } else lost_count = 0; /* update the monotonic base value */ @@ -578,23 +417,6 @@ static int tsc_resume(void) return 0; } -#ifndef CONFIG_X86_TSC -/* disable flag for tsc. Takes effect by clearing the TSC cpu flag - * in cpu/common.c */ -static int __init tsc_setup(char *str) -{ - tsc_disable = 1; - return 1; -} -#else -static int __init tsc_setup(char *str) -{ - printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, " - "cannot disable TSC.\n"); - return 1; -} -#endif -__setup("notsc", tsc_setup); diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c new file mode 100644 index 00000000000..3b64eaafce2 --- /dev/null +++ b/arch/i386/kernel/tsc.c @@ -0,0 +1,316 @@ +/* + * This code largely moved from arch/i386/kernel/timer/timer_tsc.c + * which was originally moved from arch/i386/kernel/time.c. + * See comments there for proper credits. + */ + +#include +#include +#include +#include + +#include +#include + +#include "mach_timer.h" + +/* + * On some systems the TSC frequency does not + * change with the cpu frequency. So we need + * an extra value to store the TSC freq + */ +unsigned int tsc_khz; + +int tsc_disable __cpuinitdata = 0; + +#ifdef CONFIG_X86_TSC +static int __init tsc_setup(char *str) +{ + printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, " + "cannot disable TSC.\n"); + return 1; +} +#else +/* + * disable flag for tsc. Takes effect by clearing the TSC cpu flag + * in cpu/common.c + */ +static int __init tsc_setup(char *str) +{ + tsc_disable = 1; + + return 1; +} +#endif + +__setup("notsc", tsc_setup); + + +/* + * code to mark and check if the TSC is unstable + * due to cpufreq or due to unsynced TSCs + */ +static int tsc_unstable; + +static inline int check_tsc_unstable(void) +{ + return tsc_unstable; +} + +void mark_tsc_unstable(void) +{ + tsc_unstable = 1; +} +EXPORT_SYMBOL_GPL(mark_tsc_unstable); + +/* Accellerators for sched_clock() + * convert from cycles(64bits) => nanoseconds (64bits) + * basic equation: + * ns = cycles / (freq / ns_per_sec) + * ns = cycles * (ns_per_sec / freq) + * ns = cycles * (10^9 / (cpu_khz * 10^3)) + * ns = cycles * (10^6 / cpu_khz) + * + * Then we use scaling math (suggested by george@mvista.com) to get: + * ns = cycles * (10^6 * SC / cpu_khz) / SC + * ns = cycles * cyc2ns_scale / SC + * + * And since SC is a constant power of two, we can convert the div + * into a shift. + * + * We can use khz divisor instead of mhz to keep a better percision, since + * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits. + * (mathieu.desnoyers@polymtl.ca) + * + * -johnstul@us.ibm.com "math is hard, lets go shopping!" + */ +static unsigned long cyc2ns_scale __read_mostly; + +#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ + +static inline void set_cyc2ns_scale(unsigned long cpu_khz) +{ + cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz; +} + +static inline unsigned long long cycles_2_ns(unsigned long long cyc) +{ + return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; +} + +/* + * Scheduler clock - returns current time in nanosec units. + */ +unsigned long long sched_clock(void) +{ + unsigned long long this_offset; + + /* + * in the NUMA case we dont use the TSC as they are not + * synchronized across all CPUs. + */ +#ifndef CONFIG_NUMA + if (!cpu_khz || check_tsc_unstable()) +#endif + /* no locking but a rare wrong value is not a big deal */ + return (jiffies_64 - INITIAL_JIFFIES) * (1000000000 / HZ); + + /* read the Time Stamp Counter: */ + rdtscll(this_offset); + + /* return the value in ns */ + return cycles_2_ns(this_offset); +} + +static unsigned long calculate_cpu_khz(void) +{ + unsigned long long start, end; + unsigned long count; + u64 delta64; + int i; + unsigned long flags; + + local_irq_save(flags); + + /* run 3 times to ensure the cache is warm */ + for (i = 0; i < 3; i++) { + mach_prepare_counter(); + rdtscll(start); + mach_countup(&count); + rdtscll(end); + } + /* + * Error: ECTCNEVERSET + * The CTC wasn't reliable: we got a hit on the very first read, + * or the CPU was so fast/slow that the quotient wouldn't fit in + * 32 bits.. + */ + if (count <= 1) + goto err; + + delta64 = end - start; + + /* cpu freq too fast: */ + if (delta64 > (1ULL<<32)) + goto err; + + /* cpu freq too slow: */ + if (delta64 <= CALIBRATE_TIME_MSEC) + goto err; + + delta64 += CALIBRATE_TIME_MSEC/2; /* round for do_div */ + do_div(delta64,CALIBRATE_TIME_MSEC); + + local_irq_restore(flags); + return (unsigned long)delta64; +err: + local_irq_restore(flags); + return 0; +} + +int recalibrate_cpu_khz(void) +{ +#ifndef CONFIG_SMP + unsigned long cpu_khz_old = cpu_khz; + + if (cpu_has_tsc) { + cpu_khz = calculate_cpu_khz(); + tsc_khz = cpu_khz; + cpu_data[0].loops_per_jiffy = + cpufreq_scale(cpu_data[0].loops_per_jiffy, + cpu_khz_old, cpu_khz); + return 0; + } else + return -ENODEV; +#else + return -ENODEV; +#endif +} + +EXPORT_SYMBOL(recalibrate_cpu_khz); + +void tsc_init(void) +{ + if (!cpu_has_tsc || tsc_disable) + return; + + cpu_khz = calculate_cpu_khz(); + tsc_khz = cpu_khz; + + if (!cpu_khz) + return; + + printk("Detected %lu.%03lu MHz processor.\n", + (unsigned long)cpu_khz / 1000, + (unsigned long)cpu_khz % 1000); + + set_cyc2ns_scale(cpu_khz); +} + +#ifdef CONFIG_CPU_FREQ + +static unsigned int cpufreq_delayed_issched = 0; +static unsigned int cpufreq_init = 0; +static struct work_struct cpufreq_delayed_get_work; + +static void handle_cpufreq_delayed_get(void *v) +{ + unsigned int cpu; + + for_each_online_cpu(cpu) + cpufreq_get(cpu); + + cpufreq_delayed_issched = 0; +} + +/* + * if we notice cpufreq oddness, schedule a call to cpufreq_get() as it tries + * to verify the CPU frequency the timing core thinks the CPU is running + * at is still correct. + */ +static inline void cpufreq_delayed_get(void) +{ + if (cpufreq_init && !cpufreq_delayed_issched) { + cpufreq_delayed_issched = 1; + printk(KERN_DEBUG "Checking if CPU frequency changed.\n"); + schedule_work(&cpufreq_delayed_get_work); + } +} + +/* + * if the CPU frequency is scaled, TSC-based delays will need a different + * loops_per_jiffy value to function properly. + */ +static unsigned int ref_freq = 0; +static unsigned long loops_per_jiffy_ref = 0; +static unsigned long cpu_khz_ref = 0; + +static int +time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data) +{ + struct cpufreq_freqs *freq = data; + + if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE) + write_seqlock_irq(&xtime_lock); + + if (!ref_freq) { + if (!freq->old){ + ref_freq = freq->new; + goto end; + } + ref_freq = freq->old; + loops_per_jiffy_ref = cpu_data[freq->cpu].loops_per_jiffy; + cpu_khz_ref = cpu_khz; + } + + if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) || + (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) || + (val == CPUFREQ_RESUMECHANGE)) { + if (!(freq->flags & CPUFREQ_CONST_LOOPS)) + cpu_data[freq->cpu].loops_per_jiffy = + cpufreq_scale(loops_per_jiffy_ref, + ref_freq, freq->new); + + if (cpu_khz) { + + if (num_online_cpus() == 1) + cpu_khz = cpufreq_scale(cpu_khz_ref, + ref_freq, freq->new); + if (!(freq->flags & CPUFREQ_CONST_LOOPS)) { + tsc_khz = cpu_khz; + set_cyc2ns_scale(cpu_khz); + /* + * TSC based sched_clock turns + * to junk w/ cpufreq + */ + mark_tsc_unstable(); + } + } + } +end: + if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE) + write_sequnlock_irq(&xtime_lock); + + return 0; +} + +static struct notifier_block time_cpufreq_notifier_block = { + .notifier_call = time_cpufreq_notifier +}; + +static int __init cpufreq_tsc(void) +{ + int ret; + + INIT_WORK(&cpufreq_delayed_get_work, handle_cpufreq_delayed_get, NULL); + ret = cpufreq_register_notifier(&time_cpufreq_notifier_block, + CPUFREQ_TRANSITION_NOTIFIER); + if (!ret) + cpufreq_init = 1; + + return ret; +} + +core_initcall(cpufreq_tsc); + +#endif diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 3b97a5eae9e..a5f4f2aa007 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -369,6 +369,11 @@ static void acpi_processor_idle(void) t2 = inl(acpi_fadt.xpm_tmr_blk.address); /* Get end time (ticks) */ t2 = inl(acpi_fadt.xpm_tmr_blk.address); + +#ifdef CONFIG_GENERIC_TIME + /* TSC halts in C2, so notify users */ + mark_tsc_unstable(); +#endif /* Re-enable interrupts */ local_irq_enable(); set_thread_flag(TIF_POLLING_NRFLAG); @@ -409,6 +414,10 @@ static void acpi_processor_idle(void) ACPI_MTX_DO_NOT_LOCK); } +#ifdef CONFIG_GENERIC_TIME + /* TSC halts in C3, so notify users */ + mark_tsc_unstable(); +#endif /* Re-enable interrupts */ local_irq_enable(); set_thread_flag(TIF_POLLING_NRFLAG); diff --git a/include/asm-i386/mach-default/mach_timer.h b/include/asm-i386/mach-default/mach_timer.h index 4b9703bb028..807992fd417 100644 --- a/include/asm-i386/mach-default/mach_timer.h +++ b/include/asm-i386/mach-default/mach_timer.h @@ -15,7 +15,9 @@ #ifndef _MACH_TIMER_H #define _MACH_TIMER_H -#define CALIBRATE_LATCH (5 * LATCH) +#define CALIBRATE_TIME_MSEC 30 /* 30 msecs */ +#define CALIBRATE_LATCH \ + ((CLOCK_TICK_RATE * CALIBRATE_TIME_MSEC + 1000/2)/1000) static inline void mach_prepare_counter(void) { diff --git a/include/asm-i386/mach-summit/mach_mpparse.h b/include/asm-i386/mach-summit/mach_mpparse.h index 1cce2b924a8..94268399170 100644 --- a/include/asm-i386/mach-summit/mach_mpparse.h +++ b/include/asm-i386/mach-summit/mach_mpparse.h @@ -2,6 +2,7 @@ #define __ASM_MACH_MPPARSE_H #include +#include extern int use_cyclone; @@ -29,6 +30,7 @@ static inline int mps_oem_check(struct mp_config_table *mpc, char *oem, (!strncmp(productid, "VIGIL SMP", 9) || !strncmp(productid, "EXA", 3) || !strncmp(productid, "RUTHLESS SMP", 12))){ + mark_tsc_unstable(); use_cyclone = 1; /*enable cyclone-timer*/ setup_summit(); return 1; @@ -42,6 +44,7 @@ static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) if (!strncmp(oem_id, "IBM", 3) && (!strncmp(oem_table_id, "SERVIGIL", 8) || !strncmp(oem_table_id, "EXA", 3))){ + mark_tsc_unstable(); use_cyclone = 1; /*enable cyclone-timer*/ setup_summit(); return 1; diff --git a/include/asm-i386/timex.h b/include/asm-i386/timex.h index d434984303c..3666044409f 100644 --- a/include/asm-i386/timex.h +++ b/include/asm-i386/timex.h @@ -7,6 +7,7 @@ #define _ASMi386_TIMEX_H #include +#include #ifdef CONFIG_X86_ELAN # define CLOCK_TICK_RATE 1189200 /* AMD Elan has different frequency! */ @@ -15,39 +16,6 @@ #endif -/* - * Standard way to access the cycle counter on i586+ CPUs. - * Currently only used on SMP. - * - * If you really have a SMP machine with i486 chips or older, - * compile for that, and this will just always return zero. - * That's ok, it just means that the nicer scheduling heuristics - * won't work for you. - * - * We only use the low 32 bits, and we'd simply better make sure - * that we reschedule before that wraps. Scheduling at least every - * four billion cycles just basically sounds like a good idea, - * regardless of how fast the machine is. - */ -typedef unsigned long long cycles_t; - -static inline cycles_t get_cycles (void) -{ - unsigned long long ret=0; - -#ifndef CONFIG_X86_TSC - if (!cpu_has_tsc) - return 0; -#endif - -#if defined(CONFIG_X86_GENERIC) || defined(CONFIG_X86_TSC) - rdtscll(ret); -#endif - return ret; -} - -extern unsigned int cpu_khz; - extern int read_current_timer(unsigned long *timer_value); #define ARCH_HAS_READ_CURRENT_TIMER 1 diff --git a/include/asm-i386/tsc.h b/include/asm-i386/tsc.h new file mode 100644 index 00000000000..97b828ce31e --- /dev/null +++ b/include/asm-i386/tsc.h @@ -0,0 +1,49 @@ +/* + * linux/include/asm-i386/tsc.h + * + * i386 TSC related functions + */ +#ifndef _ASM_i386_TSC_H +#define _ASM_i386_TSC_H + +#include +#include + +/* + * Standard way to access the cycle counter on i586+ CPUs. + * Currently only used on SMP. + * + * If you really have a SMP machine with i486 chips or older, + * compile for that, and this will just always return zero. + * That's ok, it just means that the nicer scheduling heuristics + * won't work for you. + * + * We only use the low 32 bits, and we'd simply better make sure + * that we reschedule before that wraps. Scheduling at least every + * four billion cycles just basically sounds like a good idea, + * regardless of how fast the machine is. + */ +typedef unsigned long long cycles_t; + +extern unsigned int cpu_khz; +extern unsigned int tsc_khz; + +static inline cycles_t get_cycles(void) +{ + unsigned long long ret = 0; + +#ifndef CONFIG_X86_TSC + if (!cpu_has_tsc) + return 0; +#endif + +#if defined(CONFIG_X86_GENERIC) || defined(CONFIG_X86_TSC) + rdtscll(ret); +#endif + return ret; +} + +extern void tsc_init(void); +extern void mark_tsc_unstable(void); + +#endif -- cgit v1.2.3 From 6f84fa2f3edc8902cfed02cd510c7c58334bb9bd Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:11 -0700 Subject: [PATCH] Time: i386 Conversion - part 3: Enable Generic Timekeeping This converts the i386 arch to use the generic timeofday subsystem. It enabled the GENERIC_TIME option, disables the timer_opts code and other arch specific timekeeping code and reworks the delay code. While this patch enables the generic timekeeping, please note that this patch does not provide any i386 clocksource. Thus only the jiffies clocksource will be available. To get full replacements for the code being disabled here, the timeofday-clocks-i386 patch will needed. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/Kconfig | 4 ++ arch/i386/kernel/Makefile | 1 - arch/i386/kernel/time.c | 153 ++++++---------------------------------------- arch/i386/kernel/tsc.c | 3 +- arch/i386/lib/delay.c | 65 +++++++++++++++++--- include/asm-i386/delay.h | 2 + include/asm-i386/timer.h | 57 ----------------- 7 files changed, 84 insertions(+), 201 deletions(-) diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 1596101cfaf..db1f8b40606 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -14,6 +14,10 @@ config X86_32 486, 586, Pentiums, and various instruction-set-compatible chips by AMD, Cyrix, and others. +config GENERIC_TIME + bool + default y + config SEMAPHORE_SLEEPERS bool default y diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index ca70d61ea83..f238cb6274e 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -10,7 +10,6 @@ obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ quirks.o i8237.o topology.o alternative.o i8253.o tsc.o obj-y += cpu/ -obj-y += timers/ obj-y += acpi/ obj-$(CONFIG_X86_BIOS_REBOOT) += reboot.o obj-$(CONFIG_MCA) += mca.o diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c index 796e5faa6ca..2a6ab86ffc1 100644 --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c @@ -82,7 +82,8 @@ extern unsigned long wall_jiffies; DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -struct timer_opts *cur_timer __read_mostly = &timer_none; +/* XXX - necessary to keep things compiling. to be removed later */ +u32 pmtmr_ioport; /* * This is a special lock that is owned by the CPU and holds the index @@ -113,99 +114,19 @@ void rtc_cmos_write(unsigned char val, unsigned char addr) } EXPORT_SYMBOL(rtc_cmos_write); -/* - * This version of gettimeofday has microsecond resolution - * and better than microsecond precision on fast x86 machines with TSC. - */ -void do_gettimeofday(struct timeval *tv) -{ - unsigned long seq; - unsigned long usec, sec; - unsigned long max_ntp_tick; - - do { - unsigned long lost; - - seq = read_seqbegin(&xtime_lock); - - usec = cur_timer->get_offset(); - lost = jiffies - wall_jiffies; - - /* - * If time_adjust is negative then NTP is slowing the clock - * so make sure not to go into next possible interval. - * Better to lose some accuracy than have time go backwards.. - */ - if (unlikely(time_adjust < 0)) { - max_ntp_tick = (USEC_PER_SEC / HZ) - tickadj; - usec = min(usec, max_ntp_tick); - - if (lost) - usec += lost * max_ntp_tick; - } - else if (unlikely(lost)) - usec += lost * (USEC_PER_SEC / HZ); - - sec = xtime.tv_sec; - usec += (xtime.tv_nsec / 1000); - } while (read_seqretry(&xtime_lock, seq)); - - while (usec >= 1000000) { - usec -= 1000000; - sec++; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int do_settimeofday(struct timespec *tv) -{ - time_t wtm_sec, sec = tv->tv_sec; - long wtm_nsec, nsec = tv->tv_nsec; - - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - /* - * This is revolting. We need to set "xtime" correctly. However, the - * value in this location is the value at the most recent update of - * wall time. Discover what correction gettimeofday() would have - * made, and then undo it! - */ - nsec -= cur_timer->get_offset() * NSEC_PER_USEC; - nsec -= (jiffies - wall_jiffies) * TICK_NSEC; - - wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); - wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); - - set_normalized_timespec(&xtime, sec, nsec); - set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - - ntp_clear(); - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; -} - -EXPORT_SYMBOL(do_settimeofday); - static int set_rtc_mmss(unsigned long nowtime) { int retval; - - WARN_ON(irqs_disabled()); + unsigned long flags; /* gets recalled with irq locally disabled */ - spin_lock_irq(&rtc_lock); + /* XXX - does irqsave resolve this? -johnstul */ + spin_lock_irqsave(&rtc_lock, flags); if (efi_enabled) retval = efi_set_rtc_mmss(nowtime); else retval = mach_set_rtc_mmss(nowtime); - spin_unlock_irq(&rtc_lock); + spin_unlock_irqrestore(&rtc_lock, flags); return retval; } @@ -213,16 +134,6 @@ static int set_rtc_mmss(unsigned long nowtime) int timer_ack; -/* monotonic_clock(): returns # of nanoseconds passed since time_init() - * Note: This function is required to return accurate - * time even in the absence of multiple timer ticks. - */ -unsigned long long monotonic_clock(void) -{ - return cur_timer->monotonic_clock(); -} -EXPORT_SYMBOL(monotonic_clock); - #if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER) unsigned long profile_pc(struct pt_regs *regs) { @@ -237,11 +148,21 @@ EXPORT_SYMBOL(profile_pc); #endif /* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "do_timer()" routine every clocktick + * This is the same as the above, except we _also_ save the current + * Time Stamp Counter value at the time of the timer interrupt, so that + * we later on can estimate the time of day more exactly. */ -static inline void do_timer_interrupt(int irq, struct pt_regs *regs) +irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) { + /* + * Here we are in the timer irq handler. We just have irqs locally + * disabled but we don't know if the timer_bh is running on the other + * CPU. We need to avoid to SMP race with it. NOTE: we don' t need + * the irq version of write_lock because as just said we have irq + * locally disabled. -arca + */ + write_seqlock(&xtime_lock); + #ifdef CONFIG_X86_IO_APIC if (timer_ack) { /* @@ -274,27 +195,6 @@ static inline void do_timer_interrupt(int irq, struct pt_regs *regs) irq = inb_p( 0x61 ); /* read the current state */ outb_p( irq|0x80, 0x61 ); /* reset the IRQ */ } -} - -/* - * This is the same as the above, except we _also_ save the current - * Time Stamp Counter value at the time of the timer interrupt, so that - * we later on can estimate the time of day more exactly. - */ -irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - /* - * Here we are in the timer irq handler. We just have irqs locally - * disabled but we don't know if the timer_bh is running on the other - * CPU. We need to avoid to SMP race with it. NOTE: we don' t need - * the irq version of write_lock because as just said we have irq - * locally disabled. -arca - */ - write_seqlock(&xtime_lock); - - cur_timer->mark_offset(); - - do_timer_interrupt(irq, regs); write_sequnlock(&xtime_lock); @@ -375,7 +275,6 @@ void notify_arch_cmos_timer(void) static long clock_cmos_diff, sleep_start; -static struct timer_opts *last_timer; static int timer_suspend(struct sys_device *dev, pm_message_t state) { /* @@ -384,10 +283,6 @@ static int timer_suspend(struct sys_device *dev, pm_message_t state) clock_cmos_diff = -get_cmos_time(); clock_cmos_diff += get_seconds(); sleep_start = get_cmos_time(); - last_timer = cur_timer; - cur_timer = &timer_none; - if (last_timer->suspend) - last_timer->suspend(state); return 0; } @@ -410,10 +305,6 @@ static int timer_resume(struct sys_device *dev) jiffies_64 += sleep_length; wall_jiffies += sleep_length; write_sequnlock_irqrestore(&xtime_lock, flags); - if (last_timer->resume) - last_timer->resume(); - cur_timer = last_timer; - last_timer = NULL; touch_softlockup_watchdog(); return 0; } @@ -455,9 +346,6 @@ static void __init hpet_time_init(void) printk("Using HPET for base-timer\n"); } - cur_timer = select_timer(); - printk(KERN_INFO "Using %s for high-res timesource\n",cur_timer->name); - time_init_hook(); } #endif @@ -479,8 +367,5 @@ void __init time_init(void) set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec); - cur_timer = select_timer(); - printk(KERN_INFO "Using %s for high-res timesource\n",cur_timer->name); - time_init_hook(); } diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index 3b64eaafce2..96b307495e5 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -10,6 +10,7 @@ #include #include +#include #include #include "mach_timer.h" @@ -45,7 +46,6 @@ static int __init tsc_setup(char *str) __setup("notsc", tsc_setup); - /* * code to mark and check if the TSC is unstable * due to cpufreq or due to unsynced TSCs @@ -205,6 +205,7 @@ void tsc_init(void) (unsigned long)cpu_khz % 1000); set_cyc2ns_scale(cpu_khz); + use_tsc_delay(); } #ifdef CONFIG_CPU_FREQ diff --git a/arch/i386/lib/delay.c b/arch/i386/lib/delay.c index c49a6acbee5..3c0714c4b66 100644 --- a/arch/i386/lib/delay.c +++ b/arch/i386/lib/delay.c @@ -10,43 +10,92 @@ * we have to worry about. */ +#include #include #include #include -#include + #include #include #include #ifdef CONFIG_SMP -#include +# include #endif -extern struct timer_opts* timer; +/* simple loop based delay: */ +static void delay_loop(unsigned long loops) +{ + int d0; + + __asm__ __volatile__( + "\tjmp 1f\n" + ".align 16\n" + "1:\tjmp 2f\n" + ".align 16\n" + "2:\tdecl %0\n\tjns 2b" + :"=&a" (d0) + :"0" (loops)); +} + +/* TSC based delay: */ +static void delay_tsc(unsigned long loops) +{ + unsigned long bclock, now; + + rdtscl(bclock); + do { + rep_nop(); + rdtscl(now); + } while ((now-bclock) < loops); +} + +/* + * Since we calibrate only once at boot, this + * function should be set once at boot and not changed + */ +static void (*delay_fn)(unsigned long) = delay_loop; + +void use_tsc_delay(void) +{ + delay_fn = delay_tsc; +} + +int read_current_timer(unsigned long *timer_val) +{ + if (delay_fn == delay_tsc) { + rdtscl(*timer_val); + return 0; + } + return -1; +} void __delay(unsigned long loops) { - cur_timer->delay(loops); + delay_fn(loops); } inline void __const_udelay(unsigned long xloops) { int d0; + xloops *= 4; __asm__("mull %0" :"=d" (xloops), "=&a" (d0) - :"1" (xloops),"0" (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (HZ/4))); - __delay(++xloops); + :"1" (xloops), "0" + (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (HZ/4))); + + __delay(++xloops); } void __udelay(unsigned long usecs) { - __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ + __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ } void __ndelay(unsigned long nsecs) { - __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ + __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ } EXPORT_SYMBOL(__delay); diff --git a/include/asm-i386/delay.h b/include/asm-i386/delay.h index 456db8501c0..b1c7650dc7b 100644 --- a/include/asm-i386/delay.h +++ b/include/asm-i386/delay.h @@ -23,4 +23,6 @@ extern void __delay(unsigned long loops); ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ __ndelay(n)) +void use_tsc_delay(void); + #endif /* defined(_I386_DELAY_H) */ diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h index aed16437479..d0ebd05f851 100644 --- a/include/asm-i386/timer.h +++ b/include/asm-i386/timer.h @@ -3,68 +3,11 @@ #include #include -/** - * struct timer_ops - used to define a timer source - * - * @name: name of the timer. - * @init: Probes and initializes the timer. Takes clock= override - * string as an argument. Returns 0 on success, anything else - * on failure. - * @mark_offset: called by the timer interrupt. - * @get_offset: called by gettimeofday(). Returns the number of microseconds - * since the last timer interupt. - * @monotonic_clock: returns the number of nanoseconds since the init of the - * timer. - * @delay: delays this many clock cycles. - */ -struct timer_opts { - char* name; - void (*mark_offset)(void); - unsigned long (*get_offset)(void); - unsigned long long (*monotonic_clock)(void); - void (*delay)(unsigned long); - unsigned long (*read_timer)(void); - int (*suspend)(pm_message_t state); - int (*resume)(void); -}; - -struct init_timer_opts { - int (*init)(char *override); - struct timer_opts *opts; -}; - #define TICK_SIZE (tick_nsec / 1000) - -extern struct timer_opts* __init select_timer(void); -extern void clock_fallback(void); void setup_pit_timer(void); - /* Modifiers for buggy PIT handling */ - extern int pit_latch_buggy; - -extern struct timer_opts *cur_timer; extern int timer_ack; - -/* list of externed timers */ -extern struct timer_opts timer_none; -extern struct timer_opts timer_pit; -extern struct init_timer_opts timer_pit_init; -extern struct init_timer_opts timer_tsc_init; -#ifdef CONFIG_X86_CYCLONE_TIMER -extern struct init_timer_opts timer_cyclone_init; -#endif - -extern unsigned long calibrate_tsc(void); -extern unsigned long read_timer_tsc(void); -extern void init_cpu_khz(void); extern int recalibrate_cpu_khz(void); -#ifdef CONFIG_HPET_TIMER -extern struct init_timer_opts timer_hpet_init; -extern unsigned long calibrate_tsc_hpet(unsigned long *tsc_hpet_quotient_ptr); -#endif -#ifdef CONFIG_X86_PM_TIMER -extern struct init_timer_opts timer_pmtmr_init; -#endif #endif -- cgit v1.2.3 From 61743fe445213b87fb55a389c8d073785323ca3e Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:12 -0700 Subject: [PATCH] Time: i386 Conversion - part 4: Remove Old timer_opts Code Remove the old timers/timer_opts infrastructure which has been disabled. It is a fairly straightforward set of deletions Note that this does not provide any i386 clocksources, so you will only have the jiffies clocksource. To get full replacements for the code being removed here, the timeofday-clocks-i386 patch will be needed. Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/timers/Makefile | 9 - arch/i386/kernel/timers/common.c | 172 ------------- arch/i386/kernel/timers/timer.c | 75 ------ arch/i386/kernel/timers/timer_cyclone.c | 259 ------------------- arch/i386/kernel/timers/timer_hpet.c | 217 ---------------- arch/i386/kernel/timers/timer_none.c | 39 --- arch/i386/kernel/timers/timer_pit.c | 164 ------------ arch/i386/kernel/timers/timer_pm.c | 342 ------------------------- arch/i386/kernel/timers/timer_tsc.c | 439 -------------------------------- 9 files changed, 1716 deletions(-) delete mode 100644 arch/i386/kernel/timers/Makefile delete mode 100644 arch/i386/kernel/timers/common.c delete mode 100644 arch/i386/kernel/timers/timer.c delete mode 100644 arch/i386/kernel/timers/timer_cyclone.c delete mode 100644 arch/i386/kernel/timers/timer_hpet.c delete mode 100644 arch/i386/kernel/timers/timer_none.c delete mode 100644 arch/i386/kernel/timers/timer_pit.c delete mode 100644 arch/i386/kernel/timers/timer_pm.c delete mode 100644 arch/i386/kernel/timers/timer_tsc.c diff --git a/arch/i386/kernel/timers/Makefile b/arch/i386/kernel/timers/Makefile deleted file mode 100644 index 8fa12be658d..00000000000 --- a/arch/i386/kernel/timers/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for x86 timers -# - -obj-y := timer.o timer_none.o timer_tsc.o timer_pit.o common.o - -obj-$(CONFIG_X86_CYCLONE_TIMER) += timer_cyclone.o -obj-$(CONFIG_HPET_TIMER) += timer_hpet.o -obj-$(CONFIG_X86_PM_TIMER) += timer_pm.o diff --git a/arch/i386/kernel/timers/common.c b/arch/i386/kernel/timers/common.c deleted file mode 100644 index 8163fe0cf1f..00000000000 --- a/arch/i386/kernel/timers/common.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Common functions used across the timers go here - */ - -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "mach_timer.h" - -/* ------ Calibrate the TSC ------- - * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset(). - * Too much 64-bit arithmetic here to do this cleanly in C, and for - * accuracy's sake we want to keep the overhead on the CTC speaker (channel 2) - * output busy loop as low as possible. We avoid reading the CTC registers - * directly because of the awkward 8-bit access mechanism of the 82C54 - * device. - */ - -#define CALIBRATE_TIME (5 * 1000020/HZ) - -unsigned long calibrate_tsc(void) -{ - mach_prepare_counter(); - - { - unsigned long startlow, starthigh; - unsigned long endlow, endhigh; - unsigned long count; - - rdtsc(startlow,starthigh); - mach_countup(&count); - rdtsc(endlow,endhigh); - - - /* Error: ECTCNEVERSET */ - if (count <= 1) - goto bad_ctc; - - /* 64-bit subtract - gcc just messes up with long longs */ - __asm__("subl %2,%0\n\t" - "sbbl %3,%1" - :"=a" (endlow), "=d" (endhigh) - :"g" (startlow), "g" (starthigh), - "0" (endlow), "1" (endhigh)); - - /* Error: ECPUTOOFAST */ - if (endhigh) - goto bad_ctc; - - /* Error: ECPUTOOSLOW */ - if (endlow <= CALIBRATE_TIME) - goto bad_ctc; - - __asm__("divl %2" - :"=a" (endlow), "=d" (endhigh) - :"r" (endlow), "0" (0), "1" (CALIBRATE_TIME)); - - return endlow; - } - - /* - * The CTC wasn't reliable: we got a hit on the very first read, - * or the CPU was so fast/slow that the quotient wouldn't fit in - * 32 bits.. - */ -bad_ctc: - return 0; -} - -#ifdef CONFIG_HPET_TIMER -/* ------ Calibrate the TSC using HPET ------- - * Return 2^32 * (1 / (TSC clocks per usec)) for getting the CPU freq. - * Second output is parameter 1 (when non NULL) - * Set 2^32 * (1 / (tsc per HPET clk)) for delay_hpet(). - * calibrate_tsc() calibrates the processor TSC by comparing - * it to the HPET timer of known frequency. - * Too much 64-bit arithmetic here to do this cleanly in C - */ -#define CALIBRATE_CNT_HPET (5 * hpet_tick) -#define CALIBRATE_TIME_HPET (5 * KERNEL_TICK_USEC) - -unsigned long __devinit calibrate_tsc_hpet(unsigned long *tsc_hpet_quotient_ptr) -{ - unsigned long tsc_startlow, tsc_starthigh; - unsigned long tsc_endlow, tsc_endhigh; - unsigned long hpet_start, hpet_end; - unsigned long result, remain; - - hpet_start = hpet_readl(HPET_COUNTER); - rdtsc(tsc_startlow, tsc_starthigh); - do { - hpet_end = hpet_readl(HPET_COUNTER); - } while ((hpet_end - hpet_start) < CALIBRATE_CNT_HPET); - rdtsc(tsc_endlow, tsc_endhigh); - - /* 64-bit subtract - gcc just messes up with long longs */ - __asm__("subl %2,%0\n\t" - "sbbl %3,%1" - :"=a" (tsc_endlow), "=d" (tsc_endhigh) - :"g" (tsc_startlow), "g" (tsc_starthigh), - "0" (tsc_endlow), "1" (tsc_endhigh)); - - /* Error: ECPUTOOFAST */ - if (tsc_endhigh) - goto bad_calibration; - - /* Error: ECPUTOOSLOW */ - if (tsc_endlow <= CALIBRATE_TIME_HPET) - goto bad_calibration; - - ASM_DIV64_REG(result, remain, tsc_endlow, 0, CALIBRATE_TIME_HPET); - if (remain > (tsc_endlow >> 1)) - result++; /* rounding the result */ - - if (tsc_hpet_quotient_ptr) { - unsigned long tsc_hpet_quotient; - - ASM_DIV64_REG(tsc_hpet_quotient, remain, tsc_endlow, 0, - CALIBRATE_CNT_HPET); - if (remain > (tsc_endlow >> 1)) - tsc_hpet_quotient++; /* rounding the result */ - *tsc_hpet_quotient_ptr = tsc_hpet_quotient; - } - - return result; -bad_calibration: - /* - * the CPU was so fast/slow that the quotient wouldn't fit in - * 32 bits.. - */ - return 0; -} -#endif - - -unsigned long read_timer_tsc(void) -{ - unsigned long retval; - rdtscl(retval); - return retval; -} - - -/* calculate cpu_khz */ -void init_cpu_khz(void) -{ - if (cpu_has_tsc) { - unsigned long tsc_quotient = calibrate_tsc(); - if (tsc_quotient) { - /* report CPU clock rate in Hz. - * The formula is (10^6 * 2^32) / (2^32 * 1 / (clocks/us)) = - * clock/second. Our precision is about 100 ppm. - */ - { unsigned long eax=0, edx=1000; - __asm__("divl %2" - :"=a" (cpu_khz), "=d" (edx) - :"r" (tsc_quotient), - "0" (eax), "1" (edx)); - printk("Detected %u.%03u MHz processor.\n", - cpu_khz / 1000, cpu_khz % 1000); - } - } - } -} - diff --git a/arch/i386/kernel/timers/timer.c b/arch/i386/kernel/timers/timer.c deleted file mode 100644 index 7e39ed8e33f..00000000000 --- a/arch/i386/kernel/timers/timer.c +++ /dev/null @@ -1,75 +0,0 @@ -#include -#include -#include -#include - -#ifdef CONFIG_HPET_TIMER -/* - * HPET memory read is slower than tsc reads, but is more dependable as it - * always runs at constant frequency and reduces complexity due to - * cpufreq. So, we prefer HPET timer to tsc based one. Also, we cannot use - * timer_pit when HPET is active. So, we default to timer_tsc. - */ -#endif -/* list of timers, ordered by preference, NULL terminated */ -static struct init_timer_opts* __initdata timers[] = { -#ifdef CONFIG_X86_CYCLONE_TIMER - &timer_cyclone_init, -#endif -#ifdef CONFIG_HPET_TIMER - &timer_hpet_init, -#endif -#ifdef CONFIG_X86_PM_TIMER - &timer_pmtmr_init, -#endif - &timer_tsc_init, - &timer_pit_init, - NULL, -}; - -static char clock_override[10] __initdata; - -static int __init clock_setup(char* str) -{ - if (str) - strlcpy(clock_override, str, sizeof(clock_override)); - return 1; -} -__setup("clock=", clock_setup); - - -/* The chosen timesource has been found to be bad. - * Fall back to a known good timesource (the PIT) - */ -void clock_fallback(void) -{ - cur_timer = &timer_pit; -} - -/* iterates through the list of timers, returning the first - * one that initializes successfully. - */ -struct timer_opts* __init select_timer(void) -{ - int i = 0; - - /* find most preferred working timer */ - while (timers[i]) { - if (timers[i]->init) - if (timers[i]->init(clock_override) == 0) - return timers[i]->opts; - ++i; - } - - panic("select_timer: Cannot find a suitable timer\n"); - return NULL; -} - -int read_current_timer(unsigned long *timer_val) -{ - if (cur_timer->read_timer) { - *timer_val = cur_timer->read_timer(); - return 0; - } - return -1; -} diff --git a/arch/i386/kernel/timers/timer_cyclone.c b/arch/i386/kernel/timers/timer_cyclone.c deleted file mode 100644 index 13892a65c94..00000000000 --- a/arch/i386/kernel/timers/timer_cyclone.c +++ /dev/null @@ -1,259 +0,0 @@ -/* Cyclone-timer: - * This code implements timer_ops for the cyclone counter found - * on IBM x440, x360, and other Summit based systems. - * - * Copyright (C) 2002 IBM, John Stultz (johnstul@us.ibm.com) - */ - - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "io_ports.h" - -/* Number of usecs that the last interrupt was delayed */ -static int delay_at_last_interrupt; - -#define CYCLONE_CBAR_ADDR 0xFEB00CD0 -#define CYCLONE_PMCC_OFFSET 0x51A0 -#define CYCLONE_MPMC_OFFSET 0x51D0 -#define CYCLONE_MPCS_OFFSET 0x51A8 -#define CYCLONE_TIMER_FREQ 100000000 -#define CYCLONE_TIMER_MASK (((u64)1<<40)-1) /* 40 bit mask */ -int use_cyclone = 0; - -static u32* volatile cyclone_timer; /* Cyclone MPMC0 register */ -static u32 last_cyclone_low; -static u32 last_cyclone_high; -static unsigned long long monotonic_base; -static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED; - -/* helper macro to atomically read both cyclone counter registers */ -#define read_cyclone_counter(low,high) \ - do{ \ - high = cyclone_timer[1]; low = cyclone_timer[0]; \ - } while (high != cyclone_timer[1]); - - -static void mark_offset_cyclone(void) -{ - unsigned long lost, delay; - unsigned long delta = last_cyclone_low; - int count; - unsigned long long this_offset, last_offset; - - write_seqlock(&monotonic_lock); - last_offset = ((unsigned long long)last_cyclone_high<<32)|last_cyclone_low; - - spin_lock(&i8253_lock); - read_cyclone_counter(last_cyclone_low,last_cyclone_high); - - /* read values for delay_at_last_interrupt */ - outb_p(0x00, 0x43); /* latch the count ASAP */ - - count = inb_p(0x40); /* read the latched count */ - count |= inb(0x40) << 8; - - /* - * VIA686a test code... reset the latch if count > max + 1 - * from timer_pit.c - cjb - */ - if (count > LATCH) { - outb_p(0x34, PIT_MODE); - outb_p(LATCH & 0xff, PIT_CH0); - outb(LATCH >> 8, PIT_CH0); - count = LATCH - 1; - } - spin_unlock(&i8253_lock); - - /* lost tick compensation */ - delta = last_cyclone_low - delta; - delta /= (CYCLONE_TIMER_FREQ/1000000); - delta += delay_at_last_interrupt; - lost = delta/(1000000/HZ); - delay = delta%(1000000/HZ); - if (lost >= 2) - jiffies_64 += lost-1; - - /* update the monotonic base value */ - this_offset = ((unsigned long long)last_cyclone_high<<32)|last_cyclone_low; - monotonic_base += (this_offset - last_offset) & CYCLONE_TIMER_MASK; - write_sequnlock(&monotonic_lock); - - /* calculate delay_at_last_interrupt */ - count = ((LATCH-1) - count) * TICK_SIZE; - delay_at_last_interrupt = (count + LATCH/2) / LATCH; - - - /* catch corner case where tick rollover occured - * between cyclone and pit reads (as noted when - * usec delta is > 90% # of usecs/tick) - */ - if (lost && abs(delay - delay_at_last_interrupt) > (900000/HZ)) - jiffies_64++; -} - -static unsigned long get_offset_cyclone(void) -{ - u32 offset; - - if(!cyclone_timer) - return delay_at_last_interrupt; - - /* Read the cyclone timer */ - offset = cyclone_timer[0]; - - /* .. relative to previous jiffy */ - offset = offset - last_cyclone_low; - - /* convert cyclone ticks to microseconds */ - /* XXX slow, can we speed this up? */ - offset = offset/(CYCLONE_TIMER_FREQ/1000000); - - /* our adjusted time offset in microseconds */ - return delay_at_last_interrupt + offset; -} - -static unsigned long long monotonic_clock_cyclone(void) -{ - u32 now_low, now_high; - unsigned long long last_offset, this_offset, base; - unsigned long long ret; - unsigned seq; - - /* atomically read monotonic base & last_offset */ - do { - seq = read_seqbegin(&monotonic_lock); - last_offset = ((unsigned long long)last_cyclone_high<<32)|last_cyclone_low; - base = monotonic_base; - } while (read_seqretry(&monotonic_lock, seq)); - - - /* Read the cyclone counter */ - read_cyclone_counter(now_low,now_high); - this_offset = ((unsigned long long)now_high<<32)|now_low; - - /* convert to nanoseconds */ - ret = base + ((this_offset - last_offset)&CYCLONE_TIMER_MASK); - return ret * (1000000000 / CYCLONE_TIMER_FREQ); -} - -static int __init init_cyclone(char* override) -{ - u32* reg; - u32 base; /* saved cyclone base address */ - u32 pageaddr; /* page that contains cyclone_timer register */ - u32 offset; /* offset from pageaddr to cyclone_timer register */ - int i; - - /* check clock override */ - if (override[0] && strncmp(override,"cyclone",7)) - return -ENODEV; - - /*make sure we're on a summit box*/ - if(!use_cyclone) return -ENODEV; - - printk(KERN_INFO "Summit chipset: Starting Cyclone Counter.\n"); - - /* find base address */ - pageaddr = (CYCLONE_CBAR_ADDR)&PAGE_MASK; - offset = (CYCLONE_CBAR_ADDR)&(~PAGE_MASK); - set_fixmap_nocache(FIX_CYCLONE_TIMER, pageaddr); - reg = (u32*)(fix_to_virt(FIX_CYCLONE_TIMER) + offset); - if(!reg){ - printk(KERN_ERR "Summit chipset: Could not find valid CBAR register.\n"); - return -ENODEV; - } - base = *reg; - if(!base){ - printk(KERN_ERR "Summit chipset: Could not find valid CBAR value.\n"); - return -ENODEV; - } - - /* setup PMCC */ - pageaddr = (base + CYCLONE_PMCC_OFFSET)&PAGE_MASK; - offset = (base + CYCLONE_PMCC_OFFSET)&(~PAGE_MASK); - set_fixmap_nocache(FIX_CYCLONE_TIMER, pageaddr); - reg = (u32*)(fix_to_virt(FIX_CYCLONE_TIMER) + offset); - if(!reg){ - printk(KERN_ERR "Summit chipset: Could not find valid PMCC register.\n"); - return -ENODEV; - } - reg[0] = 0x00000001; - - /* setup MPCS */ - pageaddr = (base + CYCLONE_MPCS_OFFSET)&PAGE_MASK; - offset = (base + CYCLONE_MPCS_OFFSET)&(~PAGE_MASK); - set_fixmap_nocache(FIX_CYCLONE_TIMER, pageaddr); - reg = (u32*)(fix_to_virt(FIX_CYCLONE_TIMER) + offset); - if(!reg){ - printk(KERN_ERR "Summit chipset: Could not find valid MPCS register.\n"); - return -ENODEV; - } - reg[0] = 0x00000001; - - /* map in cyclone_timer */ - pageaddr = (base + CYCLONE_MPMC_OFFSET)&PAGE_MASK; - offset = (base + CYCLONE_MPMC_OFFSET)&(~PAGE_MASK); - set_fixmap_nocache(FIX_CYCLONE_TIMER, pageaddr); - cyclone_timer = (u32*)(fix_to_virt(FIX_CYCLONE_TIMER) + offset); - if(!cyclone_timer){ - printk(KERN_ERR "Summit chipset: Could not find valid MPMC register.\n"); - return -ENODEV; - } - - /*quick test to make sure its ticking*/ - for(i=0; i<3; i++){ - u32 old = cyclone_timer[0]; - int stall = 100; - while(stall--) barrier(); - if(cyclone_timer[0] == old){ - printk(KERN_ERR "Summit chipset: Counter not counting! DISABLED\n"); - cyclone_timer = 0; - return -ENODEV; - } - } - - init_cpu_khz(); - - /* Everything looks good! */ - return 0; -} - - -static void delay_cyclone(unsigned long loops) -{ - unsigned long bclock, now; - if(!cyclone_timer) - return; - bclock = cyclone_timer[0]; - do { - rep_nop(); - now = cyclone_timer[0]; - } while ((now-bclock) < loops); -} -/************************************************************/ - -/* cyclone timer_opts struct */ -static struct timer_opts timer_cyclone = { - .name = "cyclone", - .mark_offset = mark_offset_cyclone, - .get_offset = get_offset_cyclone, - .monotonic_clock = monotonic_clock_cyclone, - .delay = delay_cyclone, -}; - -struct init_timer_opts __initdata timer_cyclone_init = { - .init = init_cyclone, - .opts = &timer_cyclone, -}; diff --git a/arch/i386/kernel/timers/timer_hpet.c b/arch/i386/kernel/timers/timer_hpet.c deleted file mode 100644 index 17a6fe7166e..00000000000 --- a/arch/i386/kernel/timers/timer_hpet.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * This code largely moved from arch/i386/kernel/time.c. - * See comments there for proper credits. - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "io_ports.h" -#include "mach_timer.h" -#include - -static unsigned long hpet_usec_quotient __read_mostly; /* convert hpet clks to usec */ -static unsigned long tsc_hpet_quotient __read_mostly; /* convert tsc to hpet clks */ -static unsigned long hpet_last; /* hpet counter value at last tick*/ -static unsigned long last_tsc_low; /* lsb 32 bits of Time Stamp Counter */ -static unsigned long last_tsc_high; /* msb 32 bits of Time Stamp Counter */ -static unsigned long long monotonic_base; -static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED; - -/* convert from cycles(64bits) => nanoseconds (64bits) - * basic equation: - * ns = cycles / (freq / ns_per_sec) - * ns = cycles * (ns_per_sec / freq) - * ns = cycles * (10^9 / (cpu_khz * 10^3)) - * ns = cycles * (10^6 / cpu_khz) - * - * Then we use scaling math (suggested by george@mvista.com) to get: - * ns = cycles * (10^6 * SC / cpu_khz) / SC - * ns = cycles * cyc2ns_scale / SC - * - * And since SC is a constant power of two, we can convert the div - * into a shift. - * - * We can use khz divisor instead of mhz to keep a better percision, since - * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits. - * (mathieu.desnoyers@polymtl.ca) - * - * -johnstul@us.ibm.com "math is hard, lets go shopping!" - */ -static unsigned long cyc2ns_scale __read_mostly; -#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ - -static inline void set_cyc2ns_scale(unsigned long cpu_khz) -{ - cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz; -} - -static inline unsigned long long cycles_2_ns(unsigned long long cyc) -{ - return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; -} - -static unsigned long long monotonic_clock_hpet(void) -{ - unsigned long long last_offset, this_offset, base; - unsigned seq; - - /* atomically read monotonic base & last_offset */ - do { - seq = read_seqbegin(&monotonic_lock); - last_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - base = monotonic_base; - } while (read_seqretry(&monotonic_lock, seq)); - - /* Read the Time Stamp Counter */ - rdtscll(this_offset); - - /* return the value in ns */ - return base + cycles_2_ns(this_offset - last_offset); -} - -static unsigned long get_offset_hpet(void) -{ - register unsigned long eax, edx; - - eax = hpet_readl(HPET_COUNTER); - eax -= hpet_last; /* hpet delta */ - eax = min(hpet_tick, eax); - /* - * Time offset = (hpet delta) * ( usecs per HPET clock ) - * = (hpet delta) * ( usecs per tick / HPET clocks per tick) - * = (hpet delta) * ( hpet_usec_quotient ) / (2^32) - * - * Where, - * hpet_usec_quotient = (2^32 * usecs per tick)/HPET clocks per tick - * - * Using a mull instead of a divl saves some cycles in critical path. - */ - ASM_MUL64_REG(eax, edx, hpet_usec_quotient, eax); - - /* our adjusted time offset in microseconds */ - return edx; -} - -static void mark_offset_hpet(void) -{ - unsigned long long this_offset, last_offset; - unsigned long offset; - - write_seqlock(&monotonic_lock); - last_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - rdtsc(last_tsc_low, last_tsc_high); - - if (hpet_use_timer) - offset = hpet_readl(HPET_T0_CMP) - hpet_tick; - else - offset = hpet_readl(HPET_COUNTER); - if (unlikely(((offset - hpet_last) >= (2*hpet_tick)) && (hpet_last != 0))) { - int lost_ticks = ((offset - hpet_last) / hpet_tick) - 1; - jiffies_64 += lost_ticks; - } - hpet_last = offset; - - /* update the monotonic base value */ - this_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - monotonic_base += cycles_2_ns(this_offset - last_offset); - write_sequnlock(&monotonic_lock); -} - -static void delay_hpet(unsigned long loops) -{ - unsigned long hpet_start, hpet_end; - unsigned long eax; - - /* loops is the number of cpu cycles. Convert it to hpet clocks */ - ASM_MUL64_REG(eax, loops, tsc_hpet_quotient, loops); - - hpet_start = hpet_readl(HPET_COUNTER); - do { - rep_nop(); - hpet_end = hpet_readl(HPET_COUNTER); - } while ((hpet_end - hpet_start) < (loops)); -} - -static struct timer_opts timer_hpet; - -static int __init init_hpet(char* override) -{ - unsigned long result, remain; - - /* check clock override */ - if (override[0] && strncmp(override,"hpet",4)) - return -ENODEV; - - if (!is_hpet_enabled()) - return -ENODEV; - - printk("Using HPET for gettimeofday\n"); - if (cpu_has_tsc) { - unsigned long tsc_quotient = calibrate_tsc_hpet(&tsc_hpet_quotient); - if (tsc_quotient) { - /* report CPU clock rate in Hz. - * The formula is (10^6 * 2^32) / (2^32 * 1 / (clocks/us)) = - * clock/second. Our precision is about 100 ppm. - */ - { unsigned long eax=0, edx=1000; - ASM_DIV64_REG(cpu_khz, edx, tsc_quotient, - eax, edx); - printk("Detected %u.%03u MHz processor.\n", - cpu_khz / 1000, cpu_khz % 1000); - } - set_cyc2ns_scale(cpu_khz); - } - /* set this only when cpu_has_tsc */ - timer_hpet.read_timer = read_timer_tsc; - } - - /* - * Math to calculate hpet to usec multiplier - * Look for the comments at get_offset_hpet() - */ - ASM_DIV64_REG(result, remain, hpet_tick, 0, KERNEL_TICK_USEC); - if (remain > (hpet_tick >> 1)) - result++; /* rounding the result */ - hpet_usec_quotient = result; - - return 0; -} - -static int hpet_resume(void) -{ - write_seqlock(&monotonic_lock); - /* Assume this is the last mark offset time */ - rdtsc(last_tsc_low, last_tsc_high); - - if (hpet_use_timer) - hpet_last = hpet_readl(HPET_T0_CMP) - hpet_tick; - else - hpet_last = hpet_readl(HPET_COUNTER); - write_sequnlock(&monotonic_lock); - return 0; -} -/************************************************************/ - -/* tsc timer_opts struct */ -static struct timer_opts timer_hpet __read_mostly = { - .name = "hpet", - .mark_offset = mark_offset_hpet, - .get_offset = get_offset_hpet, - .monotonic_clock = monotonic_clock_hpet, - .delay = delay_hpet, - .resume = hpet_resume, -}; - -struct init_timer_opts __initdata timer_hpet_init = { - .init = init_hpet, - .opts = &timer_hpet, -}; diff --git a/arch/i386/kernel/timers/timer_none.c b/arch/i386/kernel/timers/timer_none.c deleted file mode 100644 index 4ea2f414dbb..00000000000 --- a/arch/i386/kernel/timers/timer_none.c +++ /dev/null @@ -1,39 +0,0 @@ -#include -#include - -static void mark_offset_none(void) -{ - /* nothing needed */ -} - -static unsigned long get_offset_none(void) -{ - return 0; -} - -static unsigned long long monotonic_clock_none(void) -{ - return 0; -} - -static void delay_none(unsigned long loops) -{ - int d0; - __asm__ __volatile__( - "\tjmp 1f\n" - ".align 16\n" - "1:\tjmp 2f\n" - ".align 16\n" - "2:\tdecl %0\n\tjns 2b" - :"=&a" (d0) - :"0" (loops)); -} - -/* none timer_opts struct */ -struct timer_opts timer_none = { - .name = "none", - .mark_offset = mark_offset_none, - .get_offset = get_offset_none, - .monotonic_clock = monotonic_clock_none, - .delay = delay_none, -}; diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c deleted file mode 100644 index 44cbdf9bda9..00000000000 --- a/arch/i386/kernel/timers/timer_pit.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * This code largely moved from arch/i386/kernel/time.c. - * See comments there for proper credits. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "do_timer.h" -#include "io_ports.h" - -static int count_p; /* counter in get_offset_pit() */ - -static int __init init_pit(char* override) -{ - /* check clock override */ - if (override[0] && strncmp(override,"pit",3)) - printk(KERN_ERR "Warning: clock= override failed. Defaulting " - "to PIT\n"); - init_cpu_khz(); - count_p = LATCH; - return 0; -} - -static void mark_offset_pit(void) -{ - /* nothing needed */ -} - -static unsigned long long monotonic_clock_pit(void) -{ - return 0; -} - -static void delay_pit(unsigned long loops) -{ - int d0; - __asm__ __volatile__( - "\tjmp 1f\n" - ".align 16\n" - "1:\tjmp 2f\n" - ".align 16\n" - "2:\tdecl %0\n\tjns 2b" - :"=&a" (d0) - :"0" (loops)); -} - - -/* This function must be called with xtime_lock held. - * It was inspired by Steve McCanne's microtime-i386 for BSD. -- jrs - * - * However, the pc-audio speaker driver changes the divisor so that - * it gets interrupted rather more often - it loads 64 into the - * counter rather than 11932! This has an adverse impact on - * do_gettimeoffset() -- it stops working! What is also not - * good is that the interval that our timer function gets called - * is no longer 10.0002 ms, but 9.9767 ms. To get around this - * would require using a different timing source. Maybe someone - * could use the RTC - I know that this can interrupt at frequencies - * ranging from 8192Hz to 2Hz. If I had the energy, I'd somehow fix - * it so that at startup, the timer code in sched.c would select - * using either the RTC or the 8253 timer. The decision would be - * based on whether there was any other device around that needed - * to trample on the 8253. I'd set up the RTC to interrupt at 1024 Hz, - * and then do some jiggery to have a version of do_timer that - * advanced the clock by 1/1024 s. Every time that reached over 1/100 - * of a second, then do all the old code. If the time was kept correct - * then do_gettimeoffset could just return 0 - there is no low order - * divider that can be accessed. - * - * Ideally, you would be able to use the RTC for the speaker driver, - * but it appears that the speaker driver really needs interrupt more - * often than every 120 us or so. - * - * Anyway, this needs more thought.... pjsg (1993-08-28) - * - * If you are really that interested, you should be reading - * comp.protocols.time.ntp! - */ - -static unsigned long get_offset_pit(void) -{ - int count; - unsigned long flags; - static unsigned long jiffies_p = 0; - - /* - * cache volatile jiffies temporarily; we have xtime_lock. - */ - unsigned long jiffies_t; - - spin_lock_irqsave(&i8253_lock, flags); - /* timer count may underflow right here */ - outb_p(0x00, PIT_MODE); /* latch the count ASAP */ - - count = inb_p(PIT_CH0); /* read the latched count */ - - /* - * We do this guaranteed double memory access instead of a _p - * postfix in the previous port access. Wheee, hackady hack - */ - jiffies_t = jiffies; - - count |= inb_p(PIT_CH0) << 8; - - /* VIA686a test code... reset the latch if count > max + 1 */ - if (count > LATCH) { - outb_p(0x34, PIT_MODE); - outb_p(LATCH & 0xff, PIT_CH0); - outb(LATCH >> 8, PIT_CH0); - count = LATCH - 1; - } - - /* - * avoiding timer inconsistencies (they are rare, but they happen)... - * there are two kinds of problems that must be avoided here: - * 1. the timer counter underflows - * 2. hardware problem with the timer, not giving us continuous time, - * the counter does small "jumps" upwards on some Pentium systems, - * (see c't 95/10 page 335 for Neptun bug.) - */ - - if( jiffies_t == jiffies_p ) { - if( count > count_p ) { - /* the nutcase */ - count = do_timer_overflow(count); - } - } else - jiffies_p = jiffies_t; - - count_p = count; - - spin_unlock_irqrestore(&i8253_lock, flags); - - count = ((LATCH-1) - count) * TICK_SIZE; - count = (count + LATCH/2) / LATCH; - - return count; -} - - -/* tsc timer_opts struct */ -struct timer_opts timer_pit = { - .name = "pit", - .mark_offset = mark_offset_pit, - .get_offset = get_offset_pit, - .monotonic_clock = monotonic_clock_pit, - .delay = delay_pit, -}; - -struct init_timer_opts __initdata timer_pit_init = { - .init = init_pit, - .opts = &timer_pit, -}; diff --git a/arch/i386/kernel/timers/timer_pm.c b/arch/i386/kernel/timers/timer_pm.c deleted file mode 100644 index 144e94a0493..00000000000 --- a/arch/i386/kernel/timers/timer_pm.c +++ /dev/null @@ -1,342 +0,0 @@ -/* - * (C) Dominik Brodowski 2003 - * - * Driver to use the Power Management Timer (PMTMR) available in some - * southbridges as primary timing source for the Linux kernel. - * - * Based on parts of linux/drivers/acpi/hardware/hwtimer.c, timer_pit.c, - * timer_hpet.c, and on Arjan van de Ven's implementation for 2.4. - * - * This file is licensed under the GPL v2. - */ - - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include "mach_timer.h" - -/* Number of PMTMR ticks expected during calibration run */ -#define PMTMR_TICKS_PER_SEC 3579545 -#define PMTMR_EXPECTED_RATE \ - ((CALIBRATE_LATCH * (PMTMR_TICKS_PER_SEC >> 10)) / (CLOCK_TICK_RATE>>10)) - - -/* The I/O port the PMTMR resides at. - * The location is detected during setup_arch(), - * in arch/i386/acpi/boot.c */ -u32 pmtmr_ioport = 0; - - -/* value of the Power timer at last timer interrupt */ -static u32 offset_tick; -static u32 offset_delay; - -static unsigned long long monotonic_base; -static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED; - -#define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */ - -static int pmtmr_need_workaround __read_mostly = 1; - -/*helper function to safely read acpi pm timesource*/ -static inline u32 read_pmtmr(void) -{ - if (pmtmr_need_workaround) { - u32 v1, v2, v3; - - /* It has been reported that because of various broken - * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM time - * source is not latched, so you must read it multiple - * times to insure a safe value is read. - */ - do { - v1 = inl(pmtmr_ioport); - v2 = inl(pmtmr_ioport); - v3 = inl(pmtmr_ioport); - } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) - || (v3 > v1 && v3 < v2)); - - /* mask the output to 24 bits */ - return v2 & ACPI_PM_MASK; - } - - return inl(pmtmr_ioport) & ACPI_PM_MASK; -} - - -/* - * Some boards have the PMTMR running way too fast. We check - * the PMTMR rate against PIT channel 2 to catch these cases. - */ -static int verify_pmtmr_rate(void) -{ - u32 value1, value2; - unsigned long count, delta; - - mach_prepare_counter(); - value1 = read_pmtmr(); - mach_countup(&count); - value2 = read_pmtmr(); - delta = (value2 - value1) & ACPI_PM_MASK; - - /* Check that the PMTMR delta is within 5% of what we expect */ - if (delta < (PMTMR_EXPECTED_RATE * 19) / 20 || - delta > (PMTMR_EXPECTED_RATE * 21) / 20) { - printk(KERN_INFO "PM-Timer running at invalid rate: %lu%% of normal - aborting.\n", 100UL * delta / PMTMR_EXPECTED_RATE); - return -1; - } - - return 0; -} - - -static int init_pmtmr(char* override) -{ - u32 value1, value2; - unsigned int i; - - if (override[0] && strncmp(override,"pmtmr",5)) - return -ENODEV; - - if (!pmtmr_ioport) - return -ENODEV; - - /* we use the TSC for delay_pmtmr, so make sure it exists */ - if (!cpu_has_tsc) - return -ENODEV; - - /* "verify" this timing source */ - value1 = read_pmtmr(); - for (i = 0; i < 10000; i++) { - value2 = read_pmtmr(); - if (value2 == value1) - continue; - if (value2 > value1) - goto pm_good; - if ((value2 < value1) && ((value2) < 0xFFF)) - goto pm_good; - printk(KERN_INFO "PM-Timer had inconsistent results: 0x%#x, 0x%#x - aborting.\n", value1, value2); - return -EINVAL; - } - printk(KERN_INFO "PM-Timer had no reasonable result: 0x%#x - aborting.\n", value1); - return -ENODEV; - -pm_good: - if (verify_pmtmr_rate() != 0) - return -ENODEV; - - init_cpu_khz(); - return 0; -} - -static inline u32 cyc2us(u32 cycles) -{ - /* The Power Management Timer ticks at 3.579545 ticks per microsecond. - * 1 / PM_TIMER_FREQUENCY == 0.27936511 =~ 286/1024 [error: 0.024%] - * - * Even with HZ = 100, delta is at maximum 35796 ticks, so it can - * easily be multiplied with 286 (=0x11E) without having to fear - * u32 overflows. - */ - cycles *= 286; - return (cycles >> 10); -} - -/* - * this gets called during each timer interrupt - * - Called while holding the writer xtime_lock - */ -static void mark_offset_pmtmr(void) -{ - u32 lost, delta, last_offset; - static int first_run = 1; - last_offset = offset_tick; - - write_seqlock(&monotonic_lock); - - offset_tick = read_pmtmr(); - - /* calculate tick interval */ - delta = (offset_tick - last_offset) & ACPI_PM_MASK; - - /* convert to usecs */ - delta = cyc2us(delta); - - /* update the monotonic base value */ - monotonic_base += delta * NSEC_PER_USEC; - write_sequnlock(&monotonic_lock); - - /* convert to ticks */ - delta += offset_delay; - lost = delta / (USEC_PER_SEC / HZ); - offset_delay = delta % (USEC_PER_SEC / HZ); - - - /* compensate for lost ticks */ - if (lost >= 2) - jiffies_64 += lost - 1; - - /* don't calculate delay for first run, - or if we've got less then a tick */ - if (first_run || (lost < 1)) { - first_run = 0; - offset_delay = 0; - } -} - -static int pmtmr_resume(void) -{ - write_seqlock(&monotonic_lock); - /* Assume this is the last mark offset time */ - offset_tick = read_pmtmr(); - write_sequnlock(&monotonic_lock); - return 0; -} - -static unsigned long long monotonic_clock_pmtmr(void) -{ - u32 last_offset, this_offset; - unsigned long long base, ret; - unsigned seq; - - - /* atomically read monotonic base & last_offset */ - do { - seq = read_seqbegin(&monotonic_lock); - last_offset = offset_tick; - base = monotonic_base; - } while (read_seqretry(&monotonic_lock, seq)); - - /* Read the pmtmr */ - this_offset = read_pmtmr(); - - /* convert to nanoseconds */ - ret = (this_offset - last_offset) & ACPI_PM_MASK; - ret = base + (cyc2us(ret) * NSEC_PER_USEC); - return ret; -} - -static void delay_pmtmr(unsigned long loops) -{ - unsigned long bclock, now; - - rdtscl(bclock); - do - { - rep_nop(); - rdtscl(now); - } while ((now-bclock) < loops); -} - - -/* - * get the offset (in microseconds) from the last call to mark_offset() - * - Called holding a reader xtime_lock - */ -static unsigned long get_offset_pmtmr(void) -{ - u32 now, offset, delta = 0; - - offset = offset_tick; - now = read_pmtmr(); - delta = (now - offset)&ACPI_PM_MASK; - - return (unsigned long) offset_delay + cyc2us(delta); -} - - -/* acpi timer_opts struct */ -static struct timer_opts timer_pmtmr = { - .name = "pmtmr", - .mark_offset = mark_offset_pmtmr, - .get_offset = get_offset_pmtmr, - .monotonic_clock = monotonic_clock_pmtmr, - .delay = delay_pmtmr, - .read_timer = read_timer_tsc, - .resume = pmtmr_resume, -}; - -struct init_timer_opts __initdata timer_pmtmr_init = { - .init = init_pmtmr, - .opts = &timer_pmtmr, -}; - -#ifdef CONFIG_PCI -/* - * PIIX4 Errata: - * - * The power management timer may return improper results when read. - * Although the timer value settles properly after incrementing, - * while incrementing there is a 3 ns window every 69.8 ns where the - * timer value is indeterminate (a 4.2% chance that the data will be - * incorrect when read). As a result, the ACPI free running count up - * timer specification is violated due to erroneous reads. - */ -static int __init pmtmr_bug_check(void) -{ - static struct pci_device_id gray_list[] __initdata = { - /* these chipsets may have bug. */ - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82801DB_0) }, - { }, - }; - struct pci_dev *dev; - int pmtmr_has_bug = 0; - u8 rev; - - if (cur_timer != &timer_pmtmr || !pmtmr_need_workaround) - return 0; - - dev = pci_get_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82371AB_3, NULL); - if (dev) { - pci_read_config_byte(dev, PCI_REVISION_ID, &rev); - /* the bug has been fixed in PIIX4M */ - if (rev < 3) { - printk(KERN_WARNING "* Found PM-Timer Bug on this " - "chipset. Due to workarounds for a bug,\n" - "* this time source is slow. Consider trying " - "other time sources (clock=)\n"); - pmtmr_has_bug = 1; - } - pci_dev_put(dev); - } - - if (pci_dev_present(gray_list)) { - printk(KERN_WARNING "* This chipset may have PM-Timer Bug. Due" - " to workarounds for a bug,\n" - "* this time source is slow. If you are sure your timer" - " does not have\n" - "* this bug, please use \"pmtmr_good\" to disable the " - "workaround\n"); - pmtmr_has_bug = 1; - } - - if (!pmtmr_has_bug) - pmtmr_need_workaround = 0; - - return 0; -} -device_initcall(pmtmr_bug_check); -#endif - -static int __init pmtr_good_setup(char *__str) -{ - pmtmr_need_workaround = 0; - return 1; -} -__setup("pmtmr_good", pmtr_good_setup); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Dominik Brodowski "); -MODULE_DESCRIPTION("Power Management Timer (PMTMR) as primary timing source for x86"); diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c deleted file mode 100644 index 243ec048407..00000000000 --- a/arch/i386/kernel/timers/timer_tsc.c +++ /dev/null @@ -1,439 +0,0 @@ -/* - * This code largely moved from arch/i386/kernel/time.c. - * See comments there for proper credits. - * - * 2004-06-25 Jesper Juhl - * moved mark_offset_tsc below cpufreq_delayed_get to avoid gcc 3.4 - * failing to inline. - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -/* processor.h for distable_tsc flag */ -#include - -#include "io_ports.h" -#include "mach_timer.h" - -#include -#include - -#ifdef CONFIG_HPET_TIMER -static unsigned long hpet_usec_quotient; -static unsigned long hpet_last; -static struct timer_opts timer_tsc; -#endif - -static int use_tsc; -/* Number of usecs that the last interrupt was delayed */ -static int delay_at_last_interrupt; - -static unsigned long last_tsc_low; /* lsb 32 bits of Time Stamp Counter */ -static unsigned long last_tsc_high; /* msb 32 bits of Time Stamp Counter */ -static unsigned long long monotonic_base; -static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED; - -/* Avoid compensating for lost ticks before TSCs are synched */ -static int detect_lost_ticks; -static int __init start_lost_tick_compensation(void) -{ - detect_lost_ticks = 1; - return 0; -} -late_initcall(start_lost_tick_compensation); - -/* convert from cycles(64bits) => nanoseconds (64bits) - * basic equation: - * ns = cycles / (freq / ns_per_sec) - * ns = cycles * (ns_per_sec / freq) - * ns = cycles * (10^9 / (cpu_khz * 10^3)) - * ns = cycles * (10^6 / cpu_khz) - * - * Then we use scaling math (suggested by george@mvista.com) to get: - * ns = cycles * (10^6 * SC / cpu_khz) / SC - * ns = cycles * cyc2ns_scale / SC - * - * And since SC is a constant power of two, we can convert the div - * into a shift. - * - * We can use khz divisor instead of mhz to keep a better percision, since - * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits. - * (mathieu.desnoyers@polymtl.ca) - * - * -johnstul@us.ibm.com "math is hard, lets go shopping!" - */ -static unsigned long cyc2ns_scale __read_mostly; -#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ - -static inline void set_cyc2ns_scale(unsigned long cpu_khz) -{ - cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz; -} - -static inline unsigned long long cycles_2_ns(unsigned long long cyc) -{ - return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; -} - -static int count2; /* counter for mark_offset_tsc() */ - -/* Cached *multiplier* to convert TSC counts to microseconds. - * (see the equation below). - * Equal to 2^32 * (1 / (clocks per usec) ). - * Initialized in time_init. - */ -static unsigned long fast_gettimeoffset_quotient; - -static unsigned long get_offset_tsc(void) -{ - register unsigned long eax, edx; - - /* Read the Time Stamp Counter */ - - rdtsc(eax,edx); - - /* .. relative to previous jiffy (32 bits is enough) */ - eax -= last_tsc_low; /* tsc_low delta */ - - /* - * Time offset = (tsc_low delta) * fast_gettimeoffset_quotient - * = (tsc_low delta) * (usecs_per_clock) - * = (tsc_low delta) * (usecs_per_jiffy / clocks_per_jiffy) - * - * Using a mull instead of a divl saves up to 31 clock cycles - * in the critical path. - */ - - __asm__("mull %2" - :"=a" (eax), "=d" (edx) - :"rm" (fast_gettimeoffset_quotient), - "0" (eax)); - - /* our adjusted time offset in microseconds */ - return delay_at_last_interrupt + edx; -} - -static unsigned long long monotonic_clock_tsc(void) -{ - unsigned long long last_offset, this_offset, base; - unsigned seq; - - /* atomically read monotonic base & last_offset */ - do { - seq = read_seqbegin(&monotonic_lock); - last_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - base = monotonic_base; - } while (read_seqretry(&monotonic_lock, seq)); - - /* Read the Time Stamp Counter */ - rdtscll(this_offset); - - /* return the value in ns */ - return base + cycles_2_ns(this_offset - last_offset); -} - -static void delay_tsc(unsigned long loops) -{ - unsigned long bclock, now; - - rdtscl(bclock); - do - { - rep_nop(); - rdtscl(now); - } while ((now-bclock) < loops); -} - -#ifdef CONFIG_HPET_TIMER -static void mark_offset_tsc_hpet(void) -{ - unsigned long long this_offset, last_offset; - unsigned long offset, temp, hpet_current; - - write_seqlock(&monotonic_lock); - last_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - /* - * It is important that these two operations happen almost at - * the same time. We do the RDTSC stuff first, since it's - * faster. To avoid any inconsistencies, we need interrupts - * disabled locally. - */ - /* - * Interrupts are just disabled locally since the timer irq - * has the SA_INTERRUPT flag set. -arca - */ - /* read Pentium cycle counter */ - - hpet_current = hpet_readl(HPET_COUNTER); - rdtsc(last_tsc_low, last_tsc_high); - - /* lost tick compensation */ - offset = hpet_readl(HPET_T0_CMP) - hpet_tick; - if (unlikely(((offset - hpet_last) > hpet_tick) && (hpet_last != 0)) - && detect_lost_ticks) { - int lost_ticks = (offset - hpet_last) / hpet_tick; - jiffies_64 += lost_ticks; - } - hpet_last = hpet_current; - - /* update the monotonic base value */ - this_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - monotonic_base += cycles_2_ns(this_offset - last_offset); - write_sequnlock(&monotonic_lock); - - /* calculate delay_at_last_interrupt */ - /* - * Time offset = (hpet delta) * ( usecs per HPET clock ) - * = (hpet delta) * ( usecs per tick / HPET clocks per tick) - * = (hpet delta) * ( hpet_usec_quotient ) / (2^32) - * Where, - * hpet_usec_quotient = (2^32 * usecs per tick)/HPET clocks per tick - */ - delay_at_last_interrupt = hpet_current - offset; - ASM_MUL64_REG(temp, delay_at_last_interrupt, - hpet_usec_quotient, delay_at_last_interrupt); -} -#endif - -static void mark_offset_tsc(void) -{ - unsigned long lost,delay; - unsigned long delta = last_tsc_low; - int count; - int countmp; - static int count1 = 0; - unsigned long long this_offset, last_offset; - static int lost_count = 0; - - write_seqlock(&monotonic_lock); - last_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - /* - * It is important that these two operations happen almost at - * the same time. We do the RDTSC stuff first, since it's - * faster. To avoid any inconsistencies, we need interrupts - * disabled locally. - */ - - /* - * Interrupts are just disabled locally since the timer irq - * has the SA_INTERRUPT flag set. -arca - */ - - /* read Pentium cycle counter */ - - rdtsc(last_tsc_low, last_tsc_high); - - spin_lock(&i8253_lock); - outb_p(0x00, PIT_MODE); /* latch the count ASAP */ - - count = inb_p(PIT_CH0); /* read the latched count */ - count |= inb(PIT_CH0) << 8; - - /* - * VIA686a test code... reset the latch if count > max + 1 - * from timer_pit.c - cjb - */ - if (count > LATCH) { - outb_p(0x34, PIT_MODE); - outb_p(LATCH & 0xff, PIT_CH0); - outb(LATCH >> 8, PIT_CH0); - count = LATCH - 1; - } - - spin_unlock(&i8253_lock); - - if (pit_latch_buggy) { - /* get center value of last 3 time lutch */ - if ((count2 >= count && count >= count1) - || (count1 >= count && count >= count2)) { - count2 = count1; count1 = count; - } else if ((count1 >= count2 && count2 >= count) - || (count >= count2 && count2 >= count1)) { - countmp = count;count = count2; - count2 = count1;count1 = countmp; - } else { - count2 = count1; count1 = count; count = count1; - } - } - - /* lost tick compensation */ - delta = last_tsc_low - delta; - { - register unsigned long eax, edx; - eax = delta; - __asm__("mull %2" - :"=a" (eax), "=d" (edx) - :"rm" (fast_gettimeoffset_quotient), - "0" (eax)); - delta = edx; - } - delta += delay_at_last_interrupt; - lost = delta/(1000000/HZ); - delay = delta%(1000000/HZ); - if (lost >= 2 && detect_lost_ticks) { - jiffies_64 += lost-1; - - /* sanity check to ensure we're not always losing ticks */ - if (lost_count++ > 100) { - printk(KERN_WARNING "Losing too many ticks!\n"); - printk(KERN_WARNING "TSC cannot be used as a timesource. \n"); - printk(KERN_WARNING "Possible reasons for this are:\n"); - printk(KERN_WARNING " You're running with Speedstep,\n"); - printk(KERN_WARNING " You don't have DMA enabled for your hard disk (see hdparm),\n"); - printk(KERN_WARNING " Incorrect TSC synchronization on an SMP system (see dmesg).\n"); - printk(KERN_WARNING "Falling back to a sane timesource now.\n"); - - clock_fallback(); - } - } else - lost_count = 0; - /* update the monotonic base value */ - this_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low; - monotonic_base += cycles_2_ns(this_offset - last_offset); - write_sequnlock(&monotonic_lock); - - /* calculate delay_at_last_interrupt */ - count = ((LATCH-1) - count) * TICK_SIZE; - delay_at_last_interrupt = (count + LATCH/2) / LATCH; - - /* catch corner case where tick rollover occured - * between tsc and pit reads (as noted when - * usec delta is > 90% # of usecs/tick) - */ - if (lost && abs(delay - delay_at_last_interrupt) > (900000/HZ)) - jiffies_64++; -} - -static int __init init_tsc(char* override) -{ - - /* check clock override */ - if (override[0] && strncmp(override,"tsc",3)) { -#ifdef CONFIG_HPET_TIMER - if (is_hpet_enabled()) { - printk(KERN_ERR "Warning: clock= override failed. Defaulting to tsc\n"); - } else -#endif - { - return -ENODEV; - } - } - - /* - * If we have APM enabled or the CPU clock speed is variable - * (CPU stops clock on HLT or slows clock to save power) - * then the TSC timestamps may diverge by up to 1 jiffy from - * 'real time' but nothing will break. - * The most frequent case is that the CPU is "woken" from a halt - * state by the timer interrupt itself, so we get 0 error. In the - * rare cases where a driver would "wake" the CPU and request a - * timestamp, the maximum error is < 1 jiffy. But timestamps are - * still perfectly ordered. - * Note that the TSC counter will be reset if APM suspends - * to disk; this won't break the kernel, though, 'cuz we're - * smart. See arch/i386/kernel/apm.c. - */ - /* - * Firstly we have to do a CPU check for chips with - * a potentially buggy TSC. At this point we haven't run - * the ident/bugs checks so we must run this hook as it - * may turn off the TSC flag. - * - * NOTE: this doesn't yet handle SMP 486 machines where only - * some CPU's have a TSC. Thats never worked and nobody has - * moaned if you have the only one in the world - you fix it! - */ - - count2 = LATCH; /* initialize counter for mark_offset_tsc() */ - - if (cpu_has_tsc) { - unsigned long tsc_quotient; -#ifdef CONFIG_HPET_TIMER - if (is_hpet_enabled() && hpet_use_timer) { - unsigned long result, remain; - printk("Using TSC for gettimeofday\n"); - tsc_quotient = calibrate_tsc_hpet(NULL); - timer_tsc.mark_offset = &mark_offset_tsc_hpet; - /* - * Math to calculate hpet to usec multiplier - * Look for the comments at get_offset_tsc_hpet() - */ - ASM_DIV64_REG(result, remain, hpet_tick, - 0, KERNEL_TICK_USEC); - if (remain > (hpet_tick >> 1)) - result++; /* rounding the result */ - - hpet_usec_quotient = result; - } else -#endif - { - tsc_quotient = calibrate_tsc(); - } - - if (tsc_quotient) { - fast_gettimeoffset_quotient = tsc_quotient; - use_tsc = 1; - /* - * We could be more selective here I suspect - * and just enable this for the next intel chips ? - */ - /* report CPU clock rate in Hz. - * The formula is (10^6 * 2^32) / (2^32 * 1 / (clocks/us)) = - * clock/second. Our precision is about 100 ppm. - */ - { unsigned long eax=0, edx=1000; - __asm__("divl %2" - :"=a" (cpu_khz), "=d" (edx) - :"r" (tsc_quotient), - "0" (eax), "1" (edx)); - printk("Detected %u.%03u MHz processor.\n", - cpu_khz / 1000, cpu_khz % 1000); - } - set_cyc2ns_scale(cpu_khz); - return 0; - } - } - return -ENODEV; -} - -static int tsc_resume(void) -{ - write_seqlock(&monotonic_lock); - /* Assume this is the last mark offset time */ - rdtsc(last_tsc_low, last_tsc_high); -#ifdef CONFIG_HPET_TIMER - if (is_hpet_enabled() && hpet_use_timer) - hpet_last = hpet_readl(HPET_COUNTER); -#endif - write_sequnlock(&monotonic_lock); - return 0; -} - - - - -/************************************************************/ - -/* tsc timer_opts struct */ -static struct timer_opts timer_tsc = { - .name = "tsc", - .mark_offset = mark_offset_tsc, - .get_offset = get_offset_tsc, - .monotonic_clock = monotonic_clock_tsc, - .delay = delay_tsc, - .read_timer = read_timer_tsc, - .resume = tsc_resume, -}; - -struct init_timer_opts __initdata timer_tsc_init = { - .init = init_tsc, - .opts = &timer_tsc, -}; -- cgit v1.2.3 From 5d0cf410e94b1f1ff852c3f210d22cc6c5a27ffa Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:12 -0700 Subject: [PATCH] Time: i386 Clocksource Drivers Implement the time sources for i386 (acpi_pm, cyclone, hpet, pit, and tsc). With this patch, the conversion of the i386 arch to the generic timekeeping code should be complete. The patch should be fairly straight forward, only adding the new clocksources. [hirofumi@mail.parknet.co.jp: acpi_pm cleanup] Signed-off-by: John Stultz Signed-off-by: Adrian Bunk Signed-off-by: Paul Mundt Signed-off-by: John Stultz Signed-off-by: OGAWA Hirofumi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/kernel-parameters.txt | 5 + arch/i386/kernel/Makefile | 1 + arch/i386/kernel/hpet.c | 67 ++++++++++++++ arch/i386/kernel/i8253.c | 53 +++++++++++ arch/i386/kernel/time.c | 3 - arch/i386/kernel/tsc.c | 161 ++++++++++++++++++++++++++++++++ drivers/Makefile | 1 + drivers/clocksource/Makefile | 2 + drivers/clocksource/acpi_pm.c | 177 ++++++++++++++++++++++++++++++++++++ drivers/clocksource/cyclone.c | 119 ++++++++++++++++++++++++ kernel/time/clocksource.c | 11 ++- 11 files changed, 594 insertions(+), 6 deletions(-) create mode 100644 arch/i386/kernel/hpet.c create mode 100644 drivers/clocksource/Makefile create mode 100644 drivers/clocksource/acpi_pm.c create mode 100644 drivers/clocksource/cyclone.c diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 968631678d4..2e352a605fc 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -180,6 +180,11 @@ running once the system is up. override platform specific driver. See also Documentation/acpi-hotkey.txt. + acpi_pm_good [IA-32,X86-64] + Override the pmtimer bug detection: force the kernel + to assume that this machine's pmtimer latches its value + and always returns good values. + enable_timer_pin_1 [i386,x86-64] Enable PIN 1 of APIC timer Can be useful to work around chipset bugs diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index f238cb6274e..0fac85df64f 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_EFI) += efi.o efi_stub.o obj-$(CONFIG_DOUBLEFAULT) += doublefault.o obj-$(CONFIG_VM86) += vm86.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o +obj-$(CONFIG_HPET_TIMER) += hpet.o EXTRA_AFLAGS := -traditional diff --git a/arch/i386/kernel/hpet.c b/arch/i386/kernel/hpet.c new file mode 100644 index 00000000000..91a5bdd9f60 --- /dev/null +++ b/arch/i386/kernel/hpet.c @@ -0,0 +1,67 @@ +#include +#include +#include +#include + +#include +#include + +#define HPET_MASK 0xFFFFFFFF +#define HPET_SHIFT 22 + +/* FSEC = 10^-15 NSEC = 10^-9 */ +#define FSEC_PER_NSEC 1000000 + +static void *hpet_ptr; + +static cycle_t read_hpet(void) +{ + return (cycle_t)readl(hpet_ptr); +} + +static struct clocksource clocksource_hpet = { + .name = "hpet", + .rating = 250, + .read = read_hpet, + .mask = (cycle_t)HPET_MASK, + .mult = 0, /* set below */ + .shift = HPET_SHIFT, + .is_continuous = 1, +}; + +static int __init init_hpet_clocksource(void) +{ + unsigned long hpet_period; + void __iomem* hpet_base; + u64 tmp; + + if (!hpet_address) + return -ENODEV; + + /* calculate the hpet address: */ + hpet_base = + (void __iomem*)ioremap_nocache(hpet_address, HPET_MMAP_SIZE); + hpet_ptr = hpet_base + HPET_COUNTER; + + /* calculate the frequency: */ + hpet_period = readl(hpet_base + HPET_PERIOD); + + /* + * hpet period is in femto seconds per cycle + * so we need to convert this to ns/cyc units + * aproximated by mult/2^shift + * + * fsec/cyc * 1nsec/1000000fsec = nsec/cyc = mult/2^shift + * fsec/cyc * 1ns/1000000fsec * 2^shift = mult + * fsec/cyc * 2^shift * 1nsec/1000000fsec = mult + * (fsec/cyc << shift)/1000000 = mult + * (hpet_period << shift)/FSEC_PER_NSEC = mult + */ + tmp = (u64)hpet_period << HPET_SHIFT; + do_div(tmp, FSEC_PER_NSEC); + clocksource_hpet.mult = (u32)tmp; + + return register_clocksource(&clocksource_hpet); +} + +module_init(init_hpet_clocksource); diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c index 29cb2eb3436..a276bceade6 100644 --- a/arch/i386/kernel/i8253.c +++ b/arch/i386/kernel/i8253.c @@ -2,6 +2,7 @@ * i8253.c 8253/PIT functions * */ +#include #include #include #include @@ -30,3 +31,55 @@ void setup_pit_timer(void) outb(LATCH >> 8 , PIT_CH0); /* MSB */ spin_unlock_irqrestore(&i8253_lock, flags); } + +/* + * Since the PIT overflows every tick, its not very useful + * to just read by itself. So use jiffies to emulate a free + * running counter: + */ +static cycle_t pit_read(void) +{ + unsigned long flags; + int count; + u64 jifs; + + spin_lock_irqsave(&i8253_lock, flags); + outb_p(0x00, PIT_MODE); /* latch the count ASAP */ + count = inb_p(PIT_CH0); /* read the latched count */ + count |= inb_p(PIT_CH0) << 8; + + /* VIA686a test code... reset the latch if count > max + 1 */ + if (count > LATCH) { + outb_p(0x34, PIT_MODE); + outb_p(LATCH & 0xff, PIT_CH0); + outb(LATCH >> 8, PIT_CH0); + count = LATCH - 1; + } + spin_unlock_irqrestore(&i8253_lock, flags); + + jifs = jiffies_64; + + jifs -= INITIAL_JIFFIES; + count = (LATCH-1) - count; + + return (cycle_t)(jifs * LATCH) + count; +} + +static struct clocksource clocksource_pit = { + .name = "pit", + .rating = 110, + .read = pit_read, + .mask = (cycle_t)-1, + .mult = 0, + .shift = 20, +}; + +static int __init init_pit_clocksource(void) +{ + if (num_possible_cpus() > 4) /* PIT does not scale! */ + return 0; + + clocksource_pit.mult = clocksource_hz2mult(CLOCK_TICK_RATE, 20); + return register_clocksource(&clocksource_pit); +} +module_init(init_pit_clocksource); diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c index 2a6ab86ffc1..5f43d041012 100644 --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c @@ -82,9 +82,6 @@ extern unsigned long wall_jiffies; DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -/* XXX - necessary to keep things compiling. to be removed later */ -u32 pmtmr_ioport; - /* * This is a special lock that is owned by the CPU and holds the index * register we are working with. It is required for NMI access to the diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index 96b307495e5..7713f86389a 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -4,11 +4,14 @@ * See comments there for proper credits. */ +#include #include #include #include #include +#include +#include #include #include #include @@ -315,3 +318,161 @@ static int __init cpufreq_tsc(void) core_initcall(cpufreq_tsc); #endif + +/* clock source code */ + +static unsigned long current_tsc_khz = 0; +static int tsc_update_callback(void); + +static cycle_t read_tsc(void) +{ + cycle_t ret; + + rdtscll(ret); + + return ret; +} + +static struct clocksource clocksource_tsc = { + .name = "tsc", + .rating = 300, + .read = read_tsc, + .mask = (cycle_t)-1, + .mult = 0, /* to be set */ + .shift = 22, + .update_callback = tsc_update_callback, + .is_continuous = 1, +}; + +static int tsc_update_callback(void) +{ + int change = 0; + + /* check to see if we should switch to the safe clocksource: */ + if (clocksource_tsc.rating != 50 && check_tsc_unstable()) { + clocksource_tsc.rating = 50; + reselect_clocksource(); + change = 1; + } + + /* only update if tsc_khz has changed: */ + if (current_tsc_khz != tsc_khz) { + current_tsc_khz = tsc_khz; + clocksource_tsc.mult = clocksource_khz2mult(current_tsc_khz, + clocksource_tsc.shift); + change = 1; + } + + return change; +} + +static int __init dmi_mark_tsc_unstable(struct dmi_system_id *d) +{ + printk(KERN_NOTICE "%s detected: marking TSC unstable.\n", + d->ident); + mark_tsc_unstable(); + return 0; +} + +/* List of systems that have known TSC problems */ +static struct dmi_system_id __initdata bad_tsc_dmi_table[] = { + { + .callback = dmi_mark_tsc_unstable, + .ident = "IBM Thinkpad 380XD", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), + DMI_MATCH(DMI_BOARD_NAME, "2635FA0"), + }, + }, + {} +}; + +#define TSC_FREQ_CHECK_INTERVAL (10*MSEC_PER_SEC) /* 10sec in MS */ +static struct timer_list verify_tsc_freq_timer; + +/* XXX - Probably should add locking */ +static void verify_tsc_freq(unsigned long unused) +{ + static u64 last_tsc; + static unsigned long last_jiffies; + + u64 now_tsc, interval_tsc; + unsigned long now_jiffies, interval_jiffies; + + + if (check_tsc_unstable()) + return; + + rdtscll(now_tsc); + now_jiffies = jiffies; + + if (!last_jiffies) { + goto out; + } + + interval_jiffies = now_jiffies - last_jiffies; + interval_tsc = now_tsc - last_tsc; + interval_tsc *= HZ; + do_div(interval_tsc, cpu_khz*1000); + + if (interval_tsc < (interval_jiffies * 3 / 4)) { + printk("TSC appears to be running slowly. " + "Marking it as unstable\n"); + mark_tsc_unstable(); + return; + } + +out: + last_tsc = now_tsc; + last_jiffies = now_jiffies; + /* set us up to go off on the next interval: */ + mod_timer(&verify_tsc_freq_timer, + jiffies + msecs_to_jiffies(TSC_FREQ_CHECK_INTERVAL)); +} + +/* + * Make an educated guess if the TSC is trustworthy and synchronized + * over all CPUs. + */ +static __init int unsynchronized_tsc(void) +{ + /* + * Intel systems are normally all synchronized. + * Exceptions must mark TSC as unstable: + */ + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) + return 0; + + /* assume multi socket systems are not synchronized: */ + return num_possible_cpus() > 1; +} + +static int __init init_tsc_clocksource(void) +{ + + if (cpu_has_tsc && tsc_khz && !tsc_disable) { + /* check blacklist */ + dmi_check_system(bad_tsc_dmi_table); + + if (unsynchronized_tsc()) /* mark unstable if unsynced */ + mark_tsc_unstable(); + current_tsc_khz = tsc_khz; + clocksource_tsc.mult = clocksource_khz2mult(current_tsc_khz, + clocksource_tsc.shift); + /* lower the rating if we already know its unstable: */ + if (check_tsc_unstable()) + clocksource_tsc.rating = 50; + + init_timer(&verify_tsc_freq_timer); + verify_tsc_freq_timer.function = verify_tsc_freq; + verify_tsc_freq_timer.expires = + jiffies + msecs_to_jiffies(TSC_FREQ_CHECK_INTERVAL); + add_timer(&verify_tsc_freq_timer); + + return register_clocksource(&clocksource_tsc); + } + + return 0; +} + +module_init(init_tsc_clocksource); diff --git a/drivers/Makefile b/drivers/Makefile index 3c5170310bd..fc2d744a4e4 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -74,4 +74,5 @@ obj-$(CONFIG_SGI_SN) += sn/ obj-y += firmware/ obj-$(CONFIG_CRYPTO) += crypto/ obj-$(CONFIG_SUPERH) += sh/ +obj-$(CONFIG_GENERIC_TIME) += clocksource/ obj-$(CONFIG_DMA_ENGINE) += dma/ diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile new file mode 100644 index 00000000000..be3511a308c --- /dev/null +++ b/drivers/clocksource/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o +obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c new file mode 100644 index 00000000000..a0e5cde2fa7 --- /dev/null +++ b/drivers/clocksource/acpi_pm.c @@ -0,0 +1,177 @@ +/* + * linux/drivers/clocksource/acpi_pm.c + * + * This file contains the ACPI PM based clocksource. + * + * This code was largely moved from the i386 timer_pm.c file + * which was (C) Dominik Brodowski 2003 + * and contained the following comments: + * + * Driver to use the Power Management Timer (PMTMR) available in some + * southbridges as primary timing source for the Linux kernel. + * + * Based on parts of linux/drivers/acpi/hardware/hwtimer.c, timer_pit.c, + * timer_hpet.c, and on Arjan van de Ven's implementation for 2.4. + * + * This file is licensed under the GPL v2. + */ + +#include +#include +#include +#include +#include + +/* Number of PMTMR ticks expected during calibration run */ +#define PMTMR_TICKS_PER_SEC 3579545 + +/* + * The I/O port the PMTMR resides at. + * The location is detected during setup_arch(), + * in arch/i386/acpi/boot.c + */ +u32 pmtmr_ioport; + +#define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */ + +static inline u32 read_pmtmr(void) +{ + /* mask the output to 24 bits */ + return inl(pmtmr_ioport) & ACPI_PM_MASK; +} + +static cycle_t acpi_pm_read_verified(void) +{ + u32 v1 = 0, v2 = 0, v3 = 0; + + /* + * It has been reported that because of various broken + * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM clock + * source is not latched, so you must read it multiple + * times to ensure a safe value is read: + */ + do { + v1 = read_pmtmr(); + v2 = read_pmtmr(); + v3 = read_pmtmr(); + } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) + || (v3 > v1 && v3 < v2)); + + return (cycle_t)v2; +} + +static cycle_t acpi_pm_read(void) +{ + return (cycle_t)read_pmtmr(); +} + +static struct clocksource clocksource_acpi_pm = { + .name = "acpi_pm", + .rating = 200, + .read = acpi_pm_read, + .mask = (cycle_t)ACPI_PM_MASK, + .mult = 0, /*to be caluclated*/ + .shift = 22, + .is_continuous = 1, +}; + + +#ifdef CONFIG_PCI +static int acpi_pm_good; +static int __init acpi_pm_good_setup(char *__str) +{ + acpi_pm_good = 1; + return 1; +} +__setup("acpi_pm_good", acpi_pm_good_setup); + +static inline void acpi_pm_need_workaround(void) +{ + clocksource_acpi_pm.read = acpi_pm_read_verified; + clocksource_acpi_pm.rating = 110; +} + +/* + * PIIX4 Errata: + * + * The power management timer may return improper results when read. + * Although the timer value settles properly after incrementing, + * while incrementing there is a 3 ns window every 69.8 ns where the + * timer value is indeterminate (a 4.2% chance that the data will be + * incorrect when read). As a result, the ACPI free running count up + * timer specification is violated due to erroneous reads. + */ +static void __devinit acpi_pm_check_blacklist(struct pci_dev *dev) +{ + u8 rev; + + if (acpi_pm_good) + return; + + pci_read_config_byte(dev, PCI_REVISION_ID, &rev); + /* the bug has been fixed in PIIX4M */ + if (rev < 3) { + printk(KERN_WARNING "* Found PM-Timer Bug on the chipset." + " Due to workarounds for a bug,\n" + "* this clock source is slow. Consider trying" + " other clock sources\n"); + + acpi_pm_need_workaround(); + } +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, + acpi_pm_check_blacklist); + +static void __devinit acpi_pm_check_graylist(struct pci_dev *dev) +{ + if (acpi_pm_good) + return; + + printk(KERN_WARNING "* The chipset may have PM-Timer Bug. Due to" + " workarounds for a bug,\n" + "* this clock source is slow. If you are sure your timer" + " does not have\n" + "* this bug, please use \"acpi_pm_good\" to disable the" + " workaround\n"); + + acpi_pm_need_workaround(); +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, + acpi_pm_check_graylist); +#endif + + +static int __init init_acpi_pm_clocksource(void) +{ + u32 value1, value2; + unsigned int i; + + if (!pmtmr_ioport) + return -ENODEV; + + clocksource_acpi_pm.mult = clocksource_hz2mult(PMTMR_TICKS_PER_SEC, + clocksource_acpi_pm.shift); + + /* "verify" this timing source: */ + value1 = read_pmtmr(); + for (i = 0; i < 10000; i++) { + value2 = read_pmtmr(); + if (value2 == value1) + continue; + if (value2 > value1) + goto pm_good; + if ((value2 < value1) && ((value2) < 0xFFF)) + goto pm_good; + printk(KERN_INFO "PM-Timer had inconsistent results:" + " 0x%#x, 0x%#x - aborting.\n", value1, value2); + return -EINVAL; + } + printk(KERN_INFO "PM-Timer had no reasonable result:" + " 0x%#x - aborting.\n", value1); + return -ENODEV; + +pm_good: + return register_clocksource(&clocksource_acpi_pm); +} + +module_init(init_acpi_pm_clocksource); diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c new file mode 100644 index 00000000000..444eb11b9b4 --- /dev/null +++ b/drivers/clocksource/cyclone.c @@ -0,0 +1,119 @@ +#include +#include +#include +#include +#include + +#include +#include + +#include "mach_timer.h" + +#define CYCLONE_CBAR_ADDR 0xFEB00CD0 /* base address ptr */ +#define CYCLONE_PMCC_OFFSET 0x51A0 /* offset to control register */ +#define CYCLONE_MPCS_OFFSET 0x51A8 /* offset to select register */ +#define CYCLONE_MPMC_OFFSET 0x51D0 /* offset to count register */ +#define CYCLONE_TIMER_FREQ 99780000 /* 100Mhz, but not really */ +#define CYCLONE_TIMER_MASK 0xFFFFFFFF /* 32 bit mask */ + +int use_cyclone = 0; +static void __iomem *cyclone_ptr; + +static cycle_t read_cyclone(void) +{ + return (cycle_t)readl(cyclone_ptr); +} + +static struct clocksource clocksource_cyclone = { + .name = "cyclone", + .rating = 250, + .read = read_cyclone, + .mask = (cycle_t)CYCLONE_TIMER_MASK, + .mult = 10, + .shift = 0, + .is_continuous = 1, +}; + +static int __init init_cyclone_clocksource(void) +{ + unsigned long base; /* saved value from CBAR */ + unsigned long offset; + u32 __iomem* volatile cyclone_timer; /* Cyclone MPMC0 register */ + u32 __iomem* reg; + int i; + + /* make sure we're on a summit box: */ + if (!use_cyclone) + return -ENODEV; + + printk(KERN_INFO "Summit chipset: Starting Cyclone Counter.\n"); + + /* find base address: */ + offset = CYCLONE_CBAR_ADDR; + reg = ioremap_nocache(offset, sizeof(reg)); + if (!reg) { + printk(KERN_ERR "Summit chipset: Could not find valid CBAR register.\n"); + return -ENODEV; + } + /* even on 64bit systems, this is only 32bits: */ + base = readl(reg); + if (!base) { + printk(KERN_ERR "Summit chipset: Could not find valid CBAR value.\n"); + return -ENODEV; + } + iounmap(reg); + + /* setup PMCC: */ + offset = base + CYCLONE_PMCC_OFFSET; + reg = ioremap_nocache(offset, sizeof(reg)); + if (!reg) { + printk(KERN_ERR "Summit chipset: Could not find valid PMCC register.\n"); + return -ENODEV; + } + writel(0x00000001,reg); + iounmap(reg); + + /* setup MPCS: */ + offset = base + CYCLONE_MPCS_OFFSET; + reg = ioremap_nocache(offset, sizeof(reg)); + if (!reg) { + printk(KERN_ERR "Summit chipset: Could not find valid MPCS register.\n"); + return -ENODEV; + } + writel(0x00000001,reg); + iounmap(reg); + + /* map in cyclone_timer: */ + offset = base + CYCLONE_MPMC_OFFSET; + cyclone_timer = ioremap_nocache(offset, sizeof(u64)); + if (!cyclone_timer) { + printk(KERN_ERR "Summit chipset: Could not find valid MPMC register.\n"); + return -ENODEV; + } + + /* quick test to make sure its ticking: */ + for (i = 0; i < 3; i++){ + u32 old = readl(cyclone_timer); + int stall = 100; + + while (stall--) + barrier(); + + if (readl(cyclone_timer) == old) { + printk(KERN_ERR "Summit chipset: Counter not counting! DISABLED\n"); + iounmap(cyclone_timer); + cyclone_timer = NULL; + return -ENODEV; + } + } + cyclone_ptr = cyclone_timer; + + /* sort out mult/shift values: */ + clocksource_cyclone.shift = 22; + clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ, + clocksource_cyclone.shift); + + return register_clocksource(&clocksource_cyclone); +} + +module_init(init_cyclone_clocksource); diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 4288bfa12c3..a9f387ea83b 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -174,7 +174,7 @@ EXPORT_SYMBOL(register_clocksource); * reselect_clocksource - Rescan list for next clocksource * * A quick helper function to be used if a clocksource changes its - * rating. Forces the clocksource list to be re-scaned for the best + * rating. Forces the clocksource list to be re-scanned for the best * clocksource. */ void reselect_clocksource(void) @@ -336,8 +336,13 @@ __setup("clocksource=", boot_override_clocksource); */ static int __init boot_override_clock(char* str) { - printk("Warning! clock= boot option is deprecated.\n"); - + if (!strcmp(str, "pmtmr")) { + printk("Warning: clock=pmtmr is deprecated. " + "Use clocksource=acpi_pm.\n"); + return boot_override_clocksource("acpi_pm"); + } + printk("Warning! clock= boot option is deprecated. " + "Use clocksource=xyz\n"); return boot_override_clocksource(str); } -- cgit v1.2.3 From a275254975a29c51929ee175b92ac471ac2a0043 Mon Sep 17 00:00:00 2001 From: john stultz Date: Mon, 26 Jun 2006 00:25:14 -0700 Subject: [PATCH] time: rename clocksource functions As suggested by Roman Zippel, change clocksource functions to use clocksource_xyz rather then xyz_clocksource to avoid polluting the namespace. Signed-off-by: John Stultz Cc: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/hpet.c | 2 +- arch/i386/kernel/i8253.c | 2 +- arch/i386/kernel/tsc.c | 4 ++-- drivers/clocksource/acpi_pm.c | 2 +- drivers/clocksource/cyclone.c | 2 +- include/linux/clocksource.h | 14 +++++++------- kernel/time/clocksource.c | 16 ++++++++-------- kernel/time/jiffies.c | 2 +- kernel/timer.c | 20 ++++++++++---------- 9 files changed, 32 insertions(+), 32 deletions(-) diff --git a/arch/i386/kernel/hpet.c b/arch/i386/kernel/hpet.c index 91a5bdd9f60..23e7d2c5d25 100644 --- a/arch/i386/kernel/hpet.c +++ b/arch/i386/kernel/hpet.c @@ -61,7 +61,7 @@ static int __init init_hpet_clocksource(void) do_div(tmp, FSEC_PER_NSEC); clocksource_hpet.mult = (u32)tmp; - return register_clocksource(&clocksource_hpet); + return clocksource_register(&clocksource_hpet); } module_init(init_hpet_clocksource); diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c index a276bceade6..5b13739a7ff 100644 --- a/arch/i386/kernel/i8253.c +++ b/arch/i386/kernel/i8253.c @@ -80,6 +80,6 @@ static int __init init_pit_clocksource(void) return 0; clocksource_pit.mult = clocksource_hz2mult(CLOCK_TICK_RATE, 20); - return register_clocksource(&clocksource_pit); + return clocksource_register(&clocksource_pit); } module_init(init_pit_clocksource); diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index 7713f86389a..1c3c927755d 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -351,7 +351,7 @@ static int tsc_update_callback(void) /* check to see if we should switch to the safe clocksource: */ if (clocksource_tsc.rating != 50 && check_tsc_unstable()) { clocksource_tsc.rating = 50; - reselect_clocksource(); + clocksource_reselect(); change = 1; } @@ -469,7 +469,7 @@ static int __init init_tsc_clocksource(void) jiffies + msecs_to_jiffies(TSC_FREQ_CHECK_INTERVAL); add_timer(&verify_tsc_freq_timer); - return register_clocksource(&clocksource_tsc); + return clocksource_register(&clocksource_tsc); } return 0; diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c index a0e5cde2fa7..9217be5048d 100644 --- a/drivers/clocksource/acpi_pm.c +++ b/drivers/clocksource/acpi_pm.c @@ -171,7 +171,7 @@ static int __init init_acpi_pm_clocksource(void) return -ENODEV; pm_good: - return register_clocksource(&clocksource_acpi_pm); + return clocksource_register(&clocksource_acpi_pm); } module_init(init_acpi_pm_clocksource); diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c index 444eb11b9b4..5906a0af825 100644 --- a/drivers/clocksource/cyclone.c +++ b/drivers/clocksource/cyclone.c @@ -113,7 +113,7 @@ static int __init init_cyclone_clocksource(void) clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ, clocksource_cyclone.shift); - return register_clocksource(&clocksource_cyclone); + return clocksource_register(&clocksource_cyclone); } module_init(init_cyclone_clocksource); diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index c4739c4e303..5f4a7f72f3e 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -118,12 +118,12 @@ static inline u32 clocksource_hz2mult(u32 hz, u32 shift_constant) } /** - * read_clocksource: - Access the clocksource's current cycle value + * clocksource_read: - Access the clocksource's current cycle value * @cs: pointer to clocksource being read * * Uses the clocksource to return the current cycle_t value */ -static inline cycle_t read_clocksource(struct clocksource *cs) +static inline cycle_t clocksource_read(struct clocksource *cs) { return cs->read(); } @@ -145,7 +145,7 @@ static inline s64 cyc2ns(struct clocksource *cs, cycle_t cycles) } /** - * calculate_clocksource_interval - Calculates a clocksource interval struct + * clocksource_calculate_interval - Calculates a clocksource interval struct * * @c: Pointer to clocksource. * @length_nsec: Desired interval length in nanoseconds. @@ -155,7 +155,7 @@ static inline s64 cyc2ns(struct clocksource *cs, cycle_t cycles) * * Unless you're the timekeeping code, you should not be using this! */ -static inline void calculate_clocksource_interval(struct clocksource *c, +static inline void clocksource_calculate_interval(struct clocksource *c, unsigned long length_nsec) { u64 tmp; @@ -271,8 +271,8 @@ static inline s64 make_ntp_adj(struct clocksource *clock, /* used to install a new clocksource */ -int register_clocksource(struct clocksource*); -void reselect_clocksource(void); -struct clocksource* get_next_clocksource(void); +int clocksource_register(struct clocksource*); +void clocksource_reselect(void); +struct clocksource* clocksource_get_next(void); #endif /* _LINUX_CLOCKSOURCE_H */ diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index a9f387ea83b..74eca5939bd 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -65,10 +65,10 @@ static int __init clocksource_done_booting(void) late_initcall(clocksource_done_booting); /** - * get_next_clocksource - Returns the selected clocksource + * clocksource_get_next - Returns the selected clocksource * */ -struct clocksource *get_next_clocksource(void) +struct clocksource *clocksource_get_next(void) { unsigned long flags; @@ -142,12 +142,12 @@ static int is_registered_source(struct clocksource *c) } /** - * register_clocksource - Used to install new clocksources + * clocksource_register - Used to install new clocksources * @t: clocksource to be registered * * Returns -EBUSY if registration fails, zero otherwise. */ -int register_clocksource(struct clocksource *c) +int clocksource_register(struct clocksource *c) { int ret = 0; unsigned long flags; @@ -167,17 +167,16 @@ int register_clocksource(struct clocksource *c) spin_unlock_irqrestore(&clocksource_lock, flags); return ret; } - -EXPORT_SYMBOL(register_clocksource); +EXPORT_SYMBOL(clocksource_register); /** - * reselect_clocksource - Rescan list for next clocksource + * clocksource_reselect - Rescan list for next clocksource * * A quick helper function to be used if a clocksource changes its * rating. Forces the clocksource list to be re-scanned for the best * clocksource. */ -void reselect_clocksource(void) +void clocksource_reselect(void) { unsigned long flags; @@ -185,6 +184,7 @@ void reselect_clocksource(void) next_clocksource = select_clocksource(); spin_unlock_irqrestore(&clocksource_lock, flags); } +EXPORT_SYMBOL(clocksource_reselect); /** * sysfs_show_current_clocksources - sysfs interface for current clocksource diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c index 1fe8376e717..126bb30c4af 100644 --- a/kernel/time/jiffies.c +++ b/kernel/time/jiffies.c @@ -67,7 +67,7 @@ struct clocksource clocksource_jiffies = { static int __init init_jiffies_clocksource(void) { - return register_clocksource(&clocksource_jiffies); + return clocksource_register(&clocksource_jiffies); } module_init(init_jiffies_clocksource); diff --git a/kernel/timer.c b/kernel/timer.c index e5adb9e2e7a..890a56937cf 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -810,7 +810,7 @@ static inline s64 __get_nsec_offset(void) s64 ns_offset; /* read clocksource: */ - cycle_now = read_clocksource(clock); + cycle_now = clocksource_read(clock); /* calculate the delta since the last update_wall_time: */ cycle_delta = (cycle_now - last_clock_cycle) & clock->mask; @@ -845,7 +845,7 @@ static inline void __get_realtime_clock_ts(struct timespec *ts) } /** - * get_realtime_clock_ts - Returns the time of day in a timespec + * getnstimeofday - Returns the time of day in a timespec * @ts: pointer to the timespec to be set * * Returns the time of day in a timespec. @@ -920,9 +920,9 @@ static int change_clocksource(void) struct clocksource *new; cycle_t now; u64 nsec; - new = get_next_clocksource(); + new = clocksource_get_next(); if (clock != new) { - now = read_clocksource(new); + now = clocksource_read(new); nsec = __get_nsec_offset(); timespec_add_ns(&xtime, nsec); @@ -966,9 +966,9 @@ void __init timekeeping_init(void) unsigned long flags; write_seqlock_irqsave(&xtime_lock, flags); - clock = get_next_clocksource(); - calculate_clocksource_interval(clock, tick_nsec); - last_clock_cycle = read_clocksource(clock); + clock = clocksource_get_next(); + clocksource_calculate_interval(clock, tick_nsec); + last_clock_cycle = clocksource_read(clock); ntp_clear(); write_sequnlock_irqrestore(&xtime_lock, flags); } @@ -988,7 +988,7 @@ static int timekeeping_resume(struct sys_device *dev) write_seqlock_irqsave(&xtime_lock, flags); /* restart the last cycle value */ - last_clock_cycle = read_clocksource(clock); + last_clock_cycle = clocksource_read(clock); write_sequnlock_irqrestore(&xtime_lock, flags); return 0; } @@ -1028,7 +1028,7 @@ static void update_wall_time(void) snsecs_per_sec = (s64)NSEC_PER_SEC << clock->shift; remainder_snsecs += (s64)xtime.tv_nsec << clock->shift; - now = read_clocksource(clock); + now = clocksource_read(clock); offset = (now - last_clock_cycle)&clock->mask; /* normally this loop will run just once, however in the @@ -1069,7 +1069,7 @@ static void update_wall_time(void) if (change_clocksource()) { error = 0; remainder_snsecs = 0; - calculate_clocksource_interval(clock, tick_nsec); + clocksource_calculate_interval(clock, tick_nsec); } } -- cgit v1.2.3 From 7d622d4794490cef933c20e4a6279e43e03fafad Mon Sep 17 00:00:00 2001 From: Andreas Mohr Date: Mon, 26 Jun 2006 00:25:14 -0700 Subject: [PATCH] make pmtmr_ioport __read_mostly - written on init only, accessed for every timer read --> __read_mostly - fix broken sentence Signed-off-by: Andreas Mohr Cc: john stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/pmtimer.c | 2 +- drivers/clocksource/acpi_pm.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86_64/kernel/pmtimer.c b/arch/x86_64/kernel/pmtimer.c index bf421ed2680..7554458dc9c 100644 --- a/arch/x86_64/kernel/pmtimer.c +++ b/arch/x86_64/kernel/pmtimer.c @@ -27,7 +27,7 @@ /* The I/O port the PMTMR resides at. * The location is detected during setup_arch(), * in arch/i386/kernel/acpi/boot.c */ -u32 pmtmr_ioport; +u32 pmtmr_ioport __read_mostly; /* value of the Power timer at last timer interrupt */ static u32 offset_delay; diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c index 9217be5048d..066dc77433d 100644 --- a/drivers/clocksource/acpi_pm.c +++ b/drivers/clocksource/acpi_pm.c @@ -30,7 +30,7 @@ * The location is detected during setup_arch(), * in arch/i386/acpi/boot.c */ -u32 pmtmr_ioport; +u32 pmtmr_ioport __read_mostly; #define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */ @@ -47,7 +47,7 @@ static cycle_t acpi_pm_read_verified(void) /* * It has been reported that because of various broken * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM clock - * source is not latched, so you must read it multiple + * source is not latched, you must read it multiple * times to ensure a safe value is read: */ do { -- cgit v1.2.3 From 7f9f303aa33c7acc7b4aa9ebea25cbd990bc707b Mon Sep 17 00:00:00 2001 From: Jim Cromie Date: Mon, 26 Jun 2006 00:25:15 -0700 Subject: [PATCH] generic-time: add macro to simplify/hide mask constants Add a CLOCKSOURCE_MASK macro to simplify initializing the mask for a struct clocksource, and use it to replace literal mask constants in the various clocksource drivers. Signed-off-by: Jim Cromie Acked-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/hpet.c | 4 ++-- arch/i386/kernel/i8253.c | 2 +- arch/i386/kernel/tsc.c | 2 +- drivers/clocksource/acpi_pm.c | 2 +- drivers/clocksource/cyclone.c | 4 ++-- include/linux/clocksource.h | 2 ++ 6 files changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/i386/kernel/hpet.c b/arch/i386/kernel/hpet.c index 23e7d2c5d25..c6737c35815 100644 --- a/arch/i386/kernel/hpet.c +++ b/arch/i386/kernel/hpet.c @@ -6,7 +6,7 @@ #include #include -#define HPET_MASK 0xFFFFFFFF +#define HPET_MASK CLOCKSOURCE_MASK(32) #define HPET_SHIFT 22 /* FSEC = 10^-15 NSEC = 10^-9 */ @@ -23,7 +23,7 @@ static struct clocksource clocksource_hpet = { .name = "hpet", .rating = 250, .read = read_hpet, - .mask = (cycle_t)HPET_MASK, + .mask = HPET_MASK, .mult = 0, /* set below */ .shift = HPET_SHIFT, .is_continuous = 1, diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c index 5b13739a7ff..38aa7f19f1d 100644 --- a/arch/i386/kernel/i8253.c +++ b/arch/i386/kernel/i8253.c @@ -69,7 +69,7 @@ static struct clocksource clocksource_pit = { .name = "pit", .rating = 110, .read = pit_read, - .mask = (cycle_t)-1, + .mask = CLOCKSOURCE_MASK(64), .mult = 0, .shift = 20, }; diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index 1c3c927755d..7e0d8dab207 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -337,7 +337,7 @@ static struct clocksource clocksource_tsc = { .name = "tsc", .rating = 300, .read = read_tsc, - .mask = (cycle_t)-1, + .mask = CLOCKSOURCE_MASK(64), .mult = 0, /* to be set */ .shift = 22, .update_callback = tsc_update_callback, diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c index 066dc77433d..7ad3be8c0f4 100644 --- a/drivers/clocksource/acpi_pm.c +++ b/drivers/clocksource/acpi_pm.c @@ -32,7 +32,7 @@ */ u32 pmtmr_ioport __read_mostly; -#define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */ +#define ACPI_PM_MASK CLOCKSOURCE_MASK(24) /* limit it to 24 bits */ static inline u32 read_pmtmr(void) { diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c index 5906a0af825..bf4d3d50d1c 100644 --- a/drivers/clocksource/cyclone.c +++ b/drivers/clocksource/cyclone.c @@ -14,7 +14,7 @@ #define CYCLONE_MPCS_OFFSET 0x51A8 /* offset to select register */ #define CYCLONE_MPMC_OFFSET 0x51D0 /* offset to count register */ #define CYCLONE_TIMER_FREQ 99780000 /* 100Mhz, but not really */ -#define CYCLONE_TIMER_MASK 0xFFFFFFFF /* 32 bit mask */ +#define CYCLONE_TIMER_MASK CLOCKSOURCE_MASK(32) /* 32 bit mask */ int use_cyclone = 0; static void __iomem *cyclone_ptr; @@ -28,7 +28,7 @@ static struct clocksource clocksource_cyclone = { .name = "cyclone", .rating = 250, .read = read_cyclone, - .mask = (cycle_t)CYCLONE_TIMER_MASK, + .mask = CYCLONE_TIMER_MASK, .mult = 10, .shift = 0, .is_continuous = 1, diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 5f4a7f72f3e..4bc94282c36 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -65,6 +65,8 @@ struct clocksource { u64 interval_snsecs; }; +/* simplify initialization of mask field */ +#define CLOCKSOURCE_MASK(bits) (cycle_t)(bits<64 ? ((1ULL< Date: Mon, 26 Jun 2006 00:25:16 -0700 Subject: [PATCH] time: fix time going backward w/ clock=pit Here is the PIT fix against the TOD patches that Tim pointed out. Many thanks to Tim for hunting this down. Cc: Tim Mann Signed-off-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/i8253.c | 45 +++++++++++++++++++++++++++++++++++++++------ 1 file changed, 39 insertions(+), 6 deletions(-) diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c index 38aa7f19f1d..477b24daff5 100644 --- a/arch/i386/kernel/i8253.c +++ b/arch/i386/kernel/i8253.c @@ -41,9 +41,25 @@ static cycle_t pit_read(void) { unsigned long flags; int count; - u64 jifs; + u32 jifs; + static int old_count; + static u32 old_jifs; spin_lock_irqsave(&i8253_lock, flags); + /* + * Although our caller may have the read side of xtime_lock, + * this is now a seqlock, and we are cheating in this routine + * by having side effects on state that we cannot undo if + * there is a collision on the seqlock and our caller has to + * retry. (Namely, old_jifs and old_count.) So we must treat + * jiffies as volatile despite the lock. We read jiffies + * before latching the timer count to guarantee that although + * the jiffies value might be older than the count (that is, + * the counter may underflow between the last point where + * jiffies was incremented and the point where we latch the + * count), it cannot be newer. + */ + jifs = jiffies; outb_p(0x00, PIT_MODE); /* latch the count ASAP */ count = inb_p(PIT_CH0); /* read the latched count */ count |= inb_p(PIT_CH0) << 8; @@ -55,12 +71,29 @@ static cycle_t pit_read(void) outb(LATCH >> 8, PIT_CH0); count = LATCH - 1; } - spin_unlock_irqrestore(&i8253_lock, flags); - jifs = jiffies_64; + /* + * It's possible for count to appear to go the wrong way for a + * couple of reasons: + * + * 1. The timer counter underflows, but we haven't handled the + * resulting interrupt and incremented jiffies yet. + * 2. Hardware problem with the timer, not giving us continuous time, + * the counter does small "jumps" upwards on some Pentium systems, + * (see c't 95/10 page 335 for Neptun bug.) + * + * Previous attempts to handle these cases intelligently were + * buggy, so we just do the simple thing now. + */ + if (count > old_count && jifs == old_jifs) { + count = old_count; + } + old_count = count; + old_jifs = jifs; + + spin_unlock_irqrestore(&i8253_lock, flags); - jifs -= INITIAL_JIFFIES; - count = (LATCH-1) - count; + count = (LATCH - 1) - count; return (cycle_t)(jifs * LATCH) + count; } @@ -69,7 +102,7 @@ static struct clocksource clocksource_pit = { .name = "pit", .rating = 110, .read = pit_read, - .mask = CLOCKSOURCE_MASK(64), + .mask = CLOCKSOURCE_MASK(32), .mult = 0, .shift = 20, }; -- cgit v1.2.3 From 19923c190e0932bf0ac1e1d06a48f5c3678dd0de Mon Sep 17 00:00:00 2001 From: Roman Zippel Date: Mon, 26 Jun 2006 00:25:18 -0700 Subject: [PATCH] fix and optimize clock source update This fixes the clock source updates in update_wall_time() to correctly track the time coming in via current_tick_length(). Optimize the fast paths to be as short as possible to keep the overhead low. Signed-off-by: Roman Zippel Acked-by: John Stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/kernel/time.c | 4 +- include/linux/clocksource.h | 113 +++------------------------------ include/linux/timex.h | 4 +- kernel/timer.c | 151 ++++++++++++++++++++++++++++++++------------ 4 files changed, 123 insertions(+), 149 deletions(-) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 742f07a6316..7dd5dab789a 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -102,7 +102,7 @@ EXPORT_SYMBOL(tb_ticks_per_sec); /* for cputime_t conversions */ u64 tb_to_xs; unsigned tb_to_us; -#define TICKLEN_SCALE (SHIFT_SCALE - 10) +#define TICKLEN_SCALE TICK_LENGTH_SHIFT u64 last_tick_len; /* units are ns / 2^TICKLEN_SCALE */ u64 ticklen_to_xs; /* 0.64 fraction */ @@ -534,7 +534,7 @@ static __inline__ void timer_recalc_offset(u64 cur_tb) if (__USE_RTC()) return; - tlen = current_tick_length(SHIFT_SCALE - 10); + tlen = current_tick_length(); offset = cur_tb - do_gtod.varp->tb_orig_stamp; if (tlen == last_tick_len && offset < 0x80000000u) return; diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 4bc94282c36..d852024ed09 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -46,8 +46,8 @@ typedef u64 cycle_t; * @shift: cycle to nanosecond divisor (power of two) * @update_callback: called when safe to alter clocksource values * @is_continuous: defines if clocksource is free-running. - * @interval_cycles: Used internally by timekeeping core, please ignore. - * @interval_snsecs: Used internally by timekeeping core, please ignore. + * @cycle_interval: Used internally by timekeeping core, please ignore. + * @xtime_interval: Used internally by timekeeping core, please ignore. */ struct clocksource { char *name; @@ -61,8 +61,9 @@ struct clocksource { int is_continuous; /* timekeeping specific data, ignore */ - cycle_t interval_cycles; - u64 interval_snsecs; + cycle_t cycle_last, cycle_interval; + u64 xtime_nsec, xtime_interval; + s64 error; }; /* simplify initialization of mask field */ @@ -168,107 +169,11 @@ static inline void clocksource_calculate_interval(struct clocksource *c, tmp += c->mult/2; do_div(tmp, c->mult); - c->interval_cycles = (cycle_t)tmp; - if(c->interval_cycles == 0) - c->interval_cycles = 1; + c->cycle_interval = (cycle_t)tmp; + if (c->cycle_interval == 0) + c->cycle_interval = 1; - c->interval_snsecs = (u64)c->interval_cycles * c->mult; -} - - -/** - * error_aproximation - calculates an error adjustment for a given error - * - * @error: Error value (unsigned) - * @unit: Adjustment unit - * - * For a given error value, this function takes the adjustment unit - * and uses binary approximation to return a power of two adjustment value. - * - * This function is only for use by the the make_ntp_adj() function - * and you must hold a write on the xtime_lock when calling. - */ -static inline int error_aproximation(u64 error, u64 unit) -{ - static int saved_adj = 0; - u64 adjusted_unit = unit << saved_adj; - - if (error > (adjusted_unit * 2)) { - /* large error, so increment the adjustment factor */ - saved_adj++; - } else if (error > adjusted_unit) { - /* just right, don't touch it */ - } else if (saved_adj) { - /* small error, so drop the adjustment factor */ - saved_adj--; - return 0; - } - - return saved_adj; -} - - -/** - * make_ntp_adj - Adjusts the specified clocksource for a given error - * - * @clock: Pointer to clock to be adjusted - * @cycles_delta: Current unacounted cycle delta - * @error: Pointer to current error value - * - * Returns clock shifted nanosecond adjustment to be applied against - * the accumulated time value (ie: xtime). - * - * If the error value is large enough, this function calulates the - * (power of two) adjustment value, and adjusts the clock's mult and - * interval_snsecs values accordingly. - * - * However, since there may be some unaccumulated cycles, to avoid - * time inconsistencies we must adjust the accumulation value - * accordingly. - * - * This is not very intuitive, so the following proof should help: - * The basic timeofday algorithm: base + cycle * mult - * Thus: - * new_base + cycle * new_mult = old_base + cycle * old_mult - * new_base = old_base + cycle * old_mult - cycle * new_mult - * new_base = old_base + cycle * (old_mult - new_mult) - * new_base - old_base = cycle * (old_mult - new_mult) - * base_delta = cycle * (old_mult - new_mult) - * base_delta = cycle * (mult_delta) - * - * Where mult_delta is the adjustment value made to mult - * - */ -static inline s64 make_ntp_adj(struct clocksource *clock, - cycles_t cycles_delta, s64* error) -{ - s64 ret = 0; - if (*error > ((s64)clock->interval_cycles+1)/2) { - /* calculate adjustment value */ - int adjustment = error_aproximation(*error, - clock->interval_cycles); - /* adjust clock */ - clock->mult += 1 << adjustment; - clock->interval_snsecs += clock->interval_cycles << adjustment; - - /* adjust the base and error for the adjustment */ - ret = -(cycles_delta << adjustment); - *error -= clock->interval_cycles << adjustment; - /* XXX adj error for cycle_delta offset? */ - } else if ((-(*error)) > ((s64)clock->interval_cycles+1)/2) { - /* calculate adjustment value */ - int adjustment = error_aproximation(-(*error), - clock->interval_cycles); - /* adjust clock */ - clock->mult -= 1 << adjustment; - clock->interval_snsecs -= clock->interval_cycles << adjustment; - - /* adjust the base and error for the adjustment */ - ret = cycles_delta << adjustment; - *error += clock->interval_cycles << adjustment; - /* XXX adj error for cycle_delta offset? */ - } - return ret; + c->xtime_interval = (u64)c->cycle_interval * c->mult; } diff --git a/include/linux/timex.h b/include/linux/timex.h index 1ba3071fcb8..19bb6538b49 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -303,8 +303,10 @@ time_interpolator_reset(void) #endif /* !CONFIG_TIME_INTERPOLATION */ +#define TICK_LENGTH_SHIFT 32 + /* Returns how long ticks are at present, in ns / 2^(SHIFT_SCALE-10). */ -extern u64 current_tick_length(long); +extern u64 current_tick_length(void); extern int do_adjtimex(struct timex *); diff --git a/kernel/timer.c b/kernel/timer.c index 890a56937cf..5bb6b7976ee 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -770,7 +770,7 @@ static void update_ntp_one_tick(void) * specified number of bits to the right of the binary point. * This function has no side-effects. */ -u64 current_tick_length(long shift) +u64 current_tick_length(void) { long delta_nsec; u64 ret; @@ -779,14 +779,8 @@ u64 current_tick_length(long shift) * ie: nanosecond value shifted by (SHIFT_SCALE - 10) */ delta_nsec = tick_nsec + adjtime_adjustment() * 1000; - ret = ((u64) delta_nsec << (SHIFT_SCALE - 10)) + time_adj; - - /* convert from (SHIFT_SCALE - 10) to specified shift scale: */ - shift = shift - (SHIFT_SCALE - 10); - if (shift < 0) - ret >>= -shift; - else - ret <<= shift; + ret = (u64)delta_nsec << TICK_LENGTH_SHIFT; + ret += (s64)time_adj << (TICK_LENGTH_SHIFT - (SHIFT_SCALE - 10)); return ret; } @@ -794,7 +788,6 @@ u64 current_tick_length(long shift) /* XXX - all of this timekeeping code should be later moved to time.c */ #include static struct clocksource *clock; /* pointer to current clocksource */ -static cycle_t last_clock_cycle; /* cycle value at last update_wall_time */ #ifdef CONFIG_GENERIC_TIME /** @@ -813,7 +806,7 @@ static inline s64 __get_nsec_offset(void) cycle_now = clocksource_read(clock); /* calculate the delta since the last update_wall_time: */ - cycle_delta = (cycle_now - last_clock_cycle) & clock->mask; + cycle_delta = (cycle_now - clock->cycle_last) & clock->mask; /* convert to nanoseconds: */ ns_offset = cyc2ns(clock, cycle_delta); @@ -927,7 +920,7 @@ static int change_clocksource(void) timespec_add_ns(&xtime, nsec); clock = new; - last_clock_cycle = now; + clock->cycle_last = now; printk(KERN_INFO "Time: %s clocksource has been installed.\n", clock->name); return 1; @@ -968,7 +961,7 @@ void __init timekeeping_init(void) write_seqlock_irqsave(&xtime_lock, flags); clock = clocksource_get_next(); clocksource_calculate_interval(clock, tick_nsec); - last_clock_cycle = clocksource_read(clock); + clock->cycle_last = clocksource_read(clock); ntp_clear(); write_sequnlock_irqrestore(&xtime_lock, flags); } @@ -988,7 +981,7 @@ static int timekeeping_resume(struct sys_device *dev) write_seqlock_irqsave(&xtime_lock, flags); /* restart the last cycle value */ - last_clock_cycle = clocksource_read(clock); + clock->cycle_last = clocksource_read(clock); write_sequnlock_irqrestore(&xtime_lock, flags); return 0; } @@ -1014,6 +1007,81 @@ static int __init timekeeping_init_device(void) device_initcall(timekeeping_init_device); +/* + * If the error is already larger, we look ahead another tick, + * to compensate for late or lost adjustments. + */ +static __always_inline int clocksource_bigadjust(int sign, s64 error, s64 *interval, s64 *offset) +{ + int adj; + + /* + * As soon as the machine is synchronized to the external time + * source this should be the common case. + */ + error >>= 2; + if (likely(sign > 0 ? error <= *interval : error >= *interval)) + return sign; + + /* + * An extra look ahead dampens the effect of the current error, + * which can grow quite large with continously late updates, as + * it would dominate the adjustment value and can lead to + * oscillation. + */ + error += current_tick_length() >> (TICK_LENGTH_SHIFT - clock->shift + 1); + error -= clock->xtime_interval >> 1; + + adj = 0; + while (1) { + error >>= 1; + if (sign > 0 ? error <= *interval : error >= *interval) + break; + adj++; + } + + /* + * Add the current adjustments to the error and take the offset + * into account, the latter can cause the error to be hardly + * reduced at the next tick. Check the error again if there's + * room for another adjustment, thus further reducing the error + * which otherwise had to be corrected at the next update. + */ + error = (error << 1) - *interval + *offset; + if (sign > 0 ? error > *interval : error < *interval) + adj++; + + *interval <<= adj; + *offset <<= adj; + return sign << adj; +} + +/* + * Adjust the multiplier to reduce the error value, + * this is optimized for the most common adjustments of -1,0,1, + * for other values we can do a bit more work. + */ +static void clocksource_adjust(struct clocksource *clock, s64 offset) +{ + s64 error, interval = clock->cycle_interval; + int adj; + + error = clock->error >> (TICK_LENGTH_SHIFT - clock->shift - 1); + if (error > interval) { + adj = clocksource_bigadjust(1, error, &interval, &offset); + } else if (error < -interval) { + interval = -interval; + offset = -offset; + adj = clocksource_bigadjust(-1, error, &interval, &offset); + } else + return; + + clock->mult += adj; + clock->xtime_interval += interval; + clock->xtime_nsec -= offset; + clock->error -= (interval - offset) << (TICK_LENGTH_SHIFT - clock->shift); +} + /* * update_wall_time - Uses the current clocksource to increment the wall time * @@ -1021,54 +1089,53 @@ device_initcall(timekeeping_init_device); */ static void update_wall_time(void) { - static s64 remainder_snsecs, error; - s64 snsecs_per_sec; - cycle_t now, offset; + cycle_t offset; - snsecs_per_sec = (s64)NSEC_PER_SEC << clock->shift; - remainder_snsecs += (s64)xtime.tv_nsec << clock->shift; + clock->xtime_nsec += (s64)xtime.tv_nsec << clock->shift; - now = clocksource_read(clock); - offset = (now - last_clock_cycle)&clock->mask; +#ifdef CONFIG_GENERIC_TIME + offset = (clocksource_read(clock) - clock->cycle_last) & clock->mask; +#else + offset = clock->cycle_interval; +#endif /* normally this loop will run just once, however in the * case of lost or late ticks, it will accumulate correctly. */ - while (offset > clock->interval_cycles) { - /* get the ntp interval in clock shifted nanoseconds */ - s64 ntp_snsecs = current_tick_length(clock->shift); - + while (offset >= clock->cycle_interval) { /* accumulate one interval */ - remainder_snsecs += clock->interval_snsecs; - last_clock_cycle += clock->interval_cycles; - offset -= clock->interval_cycles; + clock->xtime_nsec += clock->xtime_interval; + clock->cycle_last += clock->cycle_interval; + offset -= clock->cycle_interval; + + if (clock->xtime_nsec >= (u64)NSEC_PER_SEC << clock->shift) { + clock->xtime_nsec -= (u64)NSEC_PER_SEC << clock->shift; + xtime.tv_sec++; + second_overflow(); + } /* interpolator bits */ - time_interpolator_update(clock->interval_snsecs + time_interpolator_update(clock->xtime_interval >> clock->shift); /* increment the NTP state machine */ update_ntp_one_tick(); /* accumulate error between NTP and clock interval */ - error += (ntp_snsecs - (s64)clock->interval_snsecs); + clock->error += current_tick_length(); + clock->error -= clock->xtime_interval << (TICK_LENGTH_SHIFT - clock->shift); + } - /* correct the clock when NTP error is too big */ - remainder_snsecs += make_ntp_adj(clock, offset, &error); + /* correct the clock when NTP error is too big */ + clocksource_adjust(clock, offset); - if (remainder_snsecs >= snsecs_per_sec) { - remainder_snsecs -= snsecs_per_sec; - xtime.tv_sec++; - second_overflow(); - } - } /* store full nanoseconds into xtime */ - xtime.tv_nsec = remainder_snsecs >> clock->shift; - remainder_snsecs -= (s64)xtime.tv_nsec << clock->shift; + xtime.tv_nsec = clock->xtime_nsec >> clock->shift; + clock->xtime_nsec -= (s64)xtime.tv_nsec << clock->shift; /* check to see if there is a new clocksource to use */ if (change_clocksource()) { - error = 0; - remainder_snsecs = 0; + clock->error = 0; + clock->xtime_nsec = 0; clocksource_calculate_interval(clock, tick_nsec); } } -- cgit v1.2.3 From 6ae7440e6b7a46f4c119c60580aa9384c1b463f7 Mon Sep 17 00:00:00 2001 From: Jim Cromie Date: Mon, 26 Jun 2006 00:25:19 -0700 Subject: [PATCH] GTOD: add scx200 HRT clocksource Add a GTOD clocksource driver based on the Geode SCx200's Hi-Res Timer. Signed-off-by: Jim Cromie Cc: Roman Zippel Cc: john stultz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/Kconfig | 20 ++++++-- drivers/clocksource/Makefile | 5 +- drivers/clocksource/scx200_hrt.c | 101 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 119 insertions(+), 7 deletions(-) create mode 100644 drivers/clocksource/scx200_hrt.c diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index db1f8b40606..374fb50608a 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -1050,13 +1050,23 @@ config SCx200 tristate "NatSemi SCx200 support" depends on !X86_VOYAGER help - This provides basic support for the National Semiconductor SCx200 - processor. Right now this is just a driver for the GPIO pins. + This provides basic support for National Semiconductor's + (now AMD's) Geode processors. The driver probes for the + PCI-IDs of several on-chip devices, so its a good dependency + for other scx200_* drivers. - If you don't know what to do here, say N. + If compiled as a module, the driver is named scx200. - This support is also available as a module. If compiled as a - module, it will be called scx200. +config SCx200HR_TIMER + tristate "NatSemi SCx200 27MHz High-Resolution Timer Support" + depends on SCx200 && GENERIC_TIME + default y + help + This driver provides a clocksource built upon the on-chip + 27MHz high-resolution timer. Its also a workaround for + NSC Geode SC-1100's buggy TSC, which loses time when the + processor goes idle (as is done by the scheduler). The + other workaround is idle=poll boot option. source "drivers/pcmcia/Kconfig" diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index be3511a308c..a5222547022 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -1,2 +1,3 @@ -obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o -obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o +obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o +obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o +obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o diff --git a/drivers/clocksource/scx200_hrt.c b/drivers/clocksource/scx200_hrt.c new file mode 100644 index 00000000000..d418b829721 --- /dev/null +++ b/drivers/clocksource/scx200_hrt.c @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2006 Jim Cromie + * + * This is a clocksource driver for the Geode SCx200's 1 or 27 MHz + * high-resolution timer. The Geode SC-1100 (at least) has a buggy + * time stamp counter (TSC), which loses time unless 'idle=poll' is + * given as a boot-arg. In its absence, the Generic Timekeeping code + * will detect and de-rate the bad TSC, allowing this timer to take + * over timekeeping duties. + * + * Based on work by John Stultz, and Ted Phelps (in a 2.6.12-rc6 patch) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + */ + +#include +#include +#include +#include +#include + +#define NAME "scx200_hrt" + +static int mhz27; +module_param(mhz27, int, 0); /* load time only */ +MODULE_PARM_DESC(mhz27, "count at 27.0 MHz (default is 1.0 MHz)"); + +static int ppm; +module_param(ppm, int, 0); /* load time only */ +MODULE_PARM_DESC(ppm, "+-adjust to actual XO freq (ppm)"); + +/* HiRes Timer configuration register address */ +#define SCx200_TMCNFG_OFFSET (SCx200_TIMER_OFFSET + 5) + +/* and config settings */ +#define HR_TMEN (1 << 0) /* timer interrupt enable */ +#define HR_TMCLKSEL (1 << 1) /* 1|0 counts at 27|1 MHz */ +#define HR_TM27MPD (1 << 2) /* 1 turns off input clock (power-down) */ + +/* The base timer frequency, * 27 if selected */ +#define HRT_FREQ 1000000 + +static cycle_t read_hrt(void) +{ + /* Read the timer value */ + return (cycle_t) inl(scx200_cb_base + SCx200_TIMER_OFFSET); +} + +#define HRT_SHIFT_1 22 +#define HRT_SHIFT_27 26 + +static struct clocksource cs_hrt = { + .name = "scx200_hrt", + .rating = 250, + .read = read_hrt, + .mask = CLOCKSOURCE_MASK(32), + .is_continuous = 1, + /* mult, shift are set based on mhz27 flag */ +}; + +static int __init init_hrt_clocksource(void) +{ + /* Make sure scx200 has initializedd the configuration block */ + if (!scx200_cb_present()) + return -ENODEV; + + /* Reserve the timer's ISA io-region for ourselves */ + if (!request_region(scx200_cb_base + SCx200_TIMER_OFFSET, + SCx200_TIMER_SIZE, + "NatSemi SCx200 High-Resolution Timer")) { + printk(KERN_WARNING NAME ": unable to lock timer region\n"); + return -ENODEV; + } + + /* write timer config */ + outb(HR_TMEN | (mhz27) ? HR_TMCLKSEL : 0, + scx200_cb_base + SCx200_TMCNFG_OFFSET); + + if (mhz27) { + cs_hrt.shift = HRT_SHIFT_27; + cs_hrt.mult = clocksource_hz2mult((HRT_FREQ + ppm) * 27, + cs_hrt.shift); + } else { + cs_hrt.shift = HRT_SHIFT_1; + cs_hrt.mult = clocksource_hz2mult(HRT_FREQ + ppm, + cs_hrt.shift); + } + printk(KERN_INFO "enabling scx200 high-res timer (%s MHz +%d ppm)\n", + mhz27 ? "27":"1", ppm); + + return clocksource_register(&cs_hrt); +} + +module_init(init_hrt_clocksource); + +MODULE_AUTHOR("Jim Cromie "); +MODULE_DESCRIPTION("clocksource on SCx200 HiRes Timer"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 585deacaca3e7bfc63580623f0344d1fa9c47f11 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Mon, 26 Jun 2006 00:25:19 -0700 Subject: [PATCH] kprobe: boost 2byte-opcodes on i386 Previous kprobe-booster patch has not handled any 2byte opcodes and prefixes. I checked whole IA32 opcode map and classified it. This patch enables kprobe to boost those 2byte opcodes and prefixes. Signed-off-by: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: "Keshavamurthy, Anil S" Cc: Prasanna S Panchamukhi Cc: Jim Keniston Cc: Yumiko Sugita Cc: Satoshi Oshima Cc: Hideo Aoki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/kprobes.c | 79 ++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 65 insertions(+), 14 deletions(-) diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c index 395a9a6dff8..37f86234bdd 100644 --- a/arch/i386/kernel/kprobes.c +++ b/arch/i386/kernel/kprobes.c @@ -57,34 +57,85 @@ static __always_inline void set_jmp_op(void *from, void *to) /* * returns non-zero if opcodes can be boosted. */ -static __always_inline int can_boost(kprobe_opcode_t opcode) +static __always_inline int can_boost(kprobe_opcode_t *opcodes) { - switch (opcode & 0xf0 ) { +#define W(row,b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,ba,bb,bc,bd,be,bf) \ + (((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) | \ + (b4##UL << 0x4)|(b5##UL << 0x5)|(b6##UL << 0x6)|(b7##UL << 0x7) | \ + (b8##UL << 0x8)|(b9##UL << 0x9)|(ba##UL << 0xa)|(bb##UL << 0xb) | \ + (bc##UL << 0xc)|(bd##UL << 0xd)|(be##UL << 0xe)|(bf##UL << 0xf)) \ + << (row % 32)) + /* + * Undefined/reserved opcodes, conditional jump, Opcode Extension + * Groups, and some special opcodes can not be boost. + */ + static const unsigned long twobyte_is_boostable[256 / 32] = { + /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ + /* ------------------------------- */ + W(0x00, 0,0,1,1,0,0,1,0,1,1,0,0,0,0,0,0)| /* 00 */ + W(0x10, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 10 */ + W(0x20, 1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0)| /* 20 */ + W(0x30, 0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 30 */ + W(0x40, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 40 */ + W(0x50, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0), /* 50 */ + W(0x60, 1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1)| /* 60 */ + W(0x70, 0,0,0,0,1,1,1,1,0,0,0,0,0,0,1,1), /* 70 */ + W(0x80, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)| /* 80 */ + W(0x90, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1), /* 90 */ + W(0xa0, 1,1,0,1,1,1,0,0,1,1,0,1,1,1,0,1)| /* a0 */ + W(0xb0, 1,1,1,1,1,1,1,1,0,0,0,1,1,1,1,1), /* b0 */ + W(0xc0, 1,1,0,0,0,0,0,0,1,1,1,1,1,1,1,1)| /* c0 */ + W(0xd0, 0,1,1,1,0,1,0,0,1,1,0,1,1,1,0,1), /* d0 */ + W(0xe0, 0,1,1,0,0,1,0,0,1,1,0,1,1,1,0,1)| /* e0 */ + W(0xf0, 0,1,1,1,0,1,0,0,1,1,1,0,1,1,1,0) /* f0 */ + /* ------------------------------- */ + /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ + }; +#undef W + kprobe_opcode_t opcode; + kprobe_opcode_t *orig_opcodes = opcodes; +retry: + if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1) + return 0; + opcode = *(opcodes++); + + /* 2nd-byte opcode */ + if (opcode == 0x0f) { + if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1) + return 0; + return test_bit(*opcodes, twobyte_is_boostable); + } + + switch (opcode & 0xf0) { + case 0x60: + if (0x63 < opcode && opcode < 0x67) + goto retry; /* prefixes */ + /* can't boost Address-size override and bound */ + return (opcode != 0x62 && opcode != 0x67); case 0x70: return 0; /* can't boost conditional jump */ - case 0x90: - /* can't boost call and pushf */ - return opcode != 0x9a && opcode != 0x9c; case 0xc0: - /* can't boost undefined opcodes and soft-interruptions */ - return (0xc1 < opcode && opcode < 0xc6) || - (0xc7 < opcode && opcode < 0xcc) || opcode == 0xcf; + /* can't boost software-interruptions */ + return (0xc1 < opcode && opcode < 0xcc) || opcode == 0xcf; case 0xd0: /* can boost AA* and XLAT */ return (opcode == 0xd4 || opcode == 0xd5 || opcode == 0xd7); case 0xe0: - /* can boost in/out and (may be) jmps */ - return (0xe3 < opcode && opcode != 0xe8); + /* can boost in/out and absolute jmps */ + return ((opcode & 0x04) || opcode == 0xea); case 0xf0: + if ((opcode & 0x0c) == 0 && opcode != 0xf1) + goto retry; /* lock/rep(ne) prefix */ /* clear and set flags can be boost */ return (opcode == 0xf5 || (0xf7 < opcode && opcode < 0xfe)); default: - /* currently, can't boost 2 bytes opcodes */ - return opcode != 0x0f; + if (opcode == 0x26 || opcode == 0x36 || opcode == 0x3e) + goto retry; /* prefixes */ + /* can't boost CS override and call */ + return (opcode != 0x2e && opcode != 0x9a); } } - /* * returns non-zero if opcode modifies the interrupt flag. */ @@ -109,7 +160,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); p->opcode = *p->addr; - if (can_boost(p->opcode)) { + if (can_boost(p->addr)) { p->ainsn.boostable = 0; } else { p->ainsn.boostable = -1; -- cgit v1.2.3 From 36721656776f177280ccb50477a02e86e6444292 Mon Sep 17 00:00:00 2001 From: "mao, bibo" Date: Mon, 26 Jun 2006 00:25:22 -0700 Subject: [PATCH] Kprobe: multi kprobe posthandler for booster If there are multi kprobes on the same probepoint, there will be one extra aggr_kprobe on the head of kprobe list. The aggr_kprobe has aggr_post_handler/aggr_break_handler whether the other kprobe post_hander/break_handler is NULL or not. This patch modifies this, only when there is one or more kprobe in the list whose post_handler is not NULL, post_handler of aggr_kprobe will be set as aggr_post_handler. [soshima@redhat.com: !CONFIG_PREEMPT fix] Signed-off-by: bibo, mao Cc: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: "Keshavamurthy, Anil S" Cc: Prasanna S Panchamukhi Cc: Jim Keniston Cc: Yumiko Sugita Cc: Hideo Aoki Signed-off-by: Satoshi Oshima Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/kprobes.c | 16 +++++----------- kernel/kprobes.c | 32 ++++++++++++++++++++++++-------- 2 files changed, 29 insertions(+), 19 deletions(-) diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c index 37f86234bdd..727e419ad78 100644 --- a/arch/i386/kernel/kprobes.c +++ b/arch/i386/kernel/kprobes.c @@ -259,7 +259,9 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) struct kprobe_ctlblk *kcb; #ifdef CONFIG_PREEMPT unsigned pre_preempt_count = preempt_count(); -#endif /* CONFIG_PREEMPT */ +#else + unsigned pre_preempt_count = 1; +#endif addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t)); @@ -336,22 +338,14 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) /* handler has already set things up, so skip ss setup */ return 1; - if (p->ainsn.boostable == 1 && -#ifdef CONFIG_PREEMPT - !(pre_preempt_count) && /* - * This enables booster when the direct - * execution path aren't preempted. - */ -#endif /* CONFIG_PREEMPT */ - !p->post_handler && !p->break_handler ) { +ss_probe: + if (pre_preempt_count && p->ainsn.boostable == 1 && !p->post_handler){ /* Boost up -- we can execute copied instructions directly */ reset_current_kprobe(); regs->eip = (unsigned long)p->ainsn.insn; preempt_enable_no_resched(); return 1; } - -ss_probe: prepare_singlestep(p, regs); kcb->kprobe_status = KPROBE_HIT_SS; return 1; diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 1fbf466a29a..f095178e48c 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -368,16 +368,15 @@ static inline void copy_kprobe(struct kprobe *old_p, struct kprobe *p) */ static int __kprobes add_new_kprobe(struct kprobe *old_p, struct kprobe *p) { - struct kprobe *kp; - if (p->break_handler) { - list_for_each_entry_rcu(kp, &old_p->list, list) { - if (kp->break_handler) - return -EEXIST; - } + if (old_p->break_handler) + return -EEXIST; list_add_tail_rcu(&p->list, &old_p->list); + old_p->break_handler = aggr_break_handler; } else list_add_rcu(&p->list, &old_p->list); + if (p->post_handler && !old_p->post_handler) + old_p->post_handler = aggr_post_handler; return 0; } @@ -390,9 +389,11 @@ static inline void add_aggr_kprobe(struct kprobe *ap, struct kprobe *p) copy_kprobe(p, ap); ap->addr = p->addr; ap->pre_handler = aggr_pre_handler; - ap->post_handler = aggr_post_handler; ap->fault_handler = aggr_fault_handler; - ap->break_handler = aggr_break_handler; + if (p->post_handler) + ap->post_handler = aggr_post_handler; + if (p->break_handler) + ap->break_handler = aggr_break_handler; INIT_LIST_HEAD(&ap->list); list_add_rcu(&p->list, &ap->list); @@ -536,6 +537,21 @@ valid_p: kfree(old_p); } arch_remove_kprobe(p); + } else { + mutex_lock(&kprobe_mutex); + if (p->break_handler) + old_p->break_handler = NULL; + if (p->post_handler){ + list_for_each_entry_rcu(list_p, &old_p->list, list){ + if (list_p->post_handler){ + cleanup_p = 2; + break; + } + } + if (cleanup_p == 0) + old_p->post_handler = NULL; + } + mutex_unlock(&kprobe_mutex); } } -- cgit v1.2.3 From 1bd858a507937cef6e8ca5efc6820a5744e73683 Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 26 Jun 2006 00:25:25 -0700 Subject: [PATCH] Notify page fault call chain for x86_64 Currently in the do_page_fault() code path, we call notify_die(DIE_PAGE_FAULT, ...) to notify the page fault. Since notify_die() is highly overloaded, this page fault notification is currently being sent to all the components registered with register_die_notification() which uses the same die_chain to loop for all the registered components which is unnecessary. In order to optimize the do_page_fault() code path, this critical page fault notification is now moved to different call chain and the test results showed great improvements. And the kprobes which is interested in this notifications, now registers onto this new call chain only when it need to, i.e Kprobes now registers for page fault notification only when their are an active probes and unregisters from this page fault notification when no probes are active. I have incorporated all the feedback given by Ananth and Keith and everyone, and thanks for all the review feedback. This patch: Overloading of page fault notification with the notify_die() has performance issues(since the only interested components for page fault is kprobes and/or kdb) and hence this patch introduces the new notifier call chain exclusively for page fault notifications their by avoiding notifying unnecessary components in the do_page_fault() code path. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/mm/fault.c | 39 +++++++++++++++++++++++++++++++++++++-- include/asm-x86_64/kdebug.h | 2 ++ 2 files changed, 39 insertions(+), 2 deletions(-) diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index 55250593d8c..0803d3858af 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -41,6 +41,41 @@ #define PF_RSVD (1<<3) #define PF_INSTR (1<<4) +#ifdef CONFIG_KPROBES +ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); + +/* Hook to register for page fault notifications */ +int register_page_fault_notifier(struct notifier_block *nb) +{ + vmalloc_sync_all(); + return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); +} + +int unregister_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); +} + +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .str = str, + .err = err, + .trapnr = trap, + .signr = sig + }; + return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); +} +#else +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + return NOTIFY_DONE; +} +#endif + void bust_spinlocks(int yes) { int loglevel_save = console_loglevel; @@ -348,7 +383,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, if (vmalloc_fault(address) >= 0) return; } - if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, + if (notify_page_fault(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, SIGSEGV) == NOTIFY_STOP) return; /* @@ -358,7 +393,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, goto bad_area_nosemaphore; } - if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, + if (notify_page_fault(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, SIGSEGV) == NOTIFY_STOP) return; diff --git a/include/asm-x86_64/kdebug.h b/include/asm-x86_64/kdebug.h index cf795631d9b..cd52c7f33bc 100644 --- a/include/asm-x86_64/kdebug.h +++ b/include/asm-x86_64/kdebug.h @@ -15,6 +15,8 @@ struct die_args { extern int register_die_notifier(struct notifier_block *); extern int unregister_die_notifier(struct notifier_block *); +extern int register_page_fault_notifier(struct notifier_block *); +extern int unregister_page_fault_notifier(struct notifier_block *); extern struct atomic_notifier_head die_chain; /* Grossly misnamed. */ -- cgit v1.2.3 From b71b5b652852db1b499d22aaabed8f5043acafad Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 26 Jun 2006 00:25:25 -0700 Subject: [PATCH] Notify page fault call chain for i386 Overloading of page fault notification with the notify_die() has performance issues(since the only interested components for page fault is kprobes and/or kdb) and hence this patch introduces the new notifier call chain exclusively for page fault notifications their by avoiding notifying unnecessary components in the do_page_fault() code path. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/mm/fault.c | 38 ++++++++++++++++++++++++++++++++++++-- include/asm-i386/kdebug.h | 2 ++ 2 files changed, 38 insertions(+), 2 deletions(-) diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c index bd6fe96cc16..6ee7faaf2c1 100644 --- a/arch/i386/mm/fault.c +++ b/arch/i386/mm/fault.c @@ -30,6 +30,40 @@ extern void die(const char *,struct pt_regs *,long); +#ifdef CONFIG_KPROBES +ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); +int register_page_fault_notifier(struct notifier_block *nb) +{ + vmalloc_sync_all(); + return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); +} + +int unregister_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); +} + +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .str = str, + .err = err, + .trapnr = trap, + .signr = sig + }; + return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); +} +#else +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + return NOTIFY_DONE; +} +#endif + + /* * Unlock any spinlocks which will prevent us from getting the * message out @@ -324,7 +358,7 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs, if (unlikely(address >= TASK_SIZE)) { if (!(error_code & 0x0000000d) && vmalloc_fault(address) >= 0) return; - if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, + if (notify_page_fault(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, SIGSEGV) == NOTIFY_STOP) return; /* @@ -334,7 +368,7 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs, goto bad_area_nosemaphore; } - if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, + if (notify_page_fault(DIE_PAGE_FAULT, "page fault", regs, error_code, 14, SIGSEGV) == NOTIFY_STOP) return; diff --git a/include/asm-i386/kdebug.h b/include/asm-i386/kdebug.h index 96d0828ce09..d18cdb9fc9a 100644 --- a/include/asm-i386/kdebug.h +++ b/include/asm-i386/kdebug.h @@ -19,6 +19,8 @@ struct die_args { extern int register_die_notifier(struct notifier_block *); extern int unregister_die_notifier(struct notifier_block *); +extern int register_page_fault_notifier(struct notifier_block *); +extern int unregister_page_fault_notifier(struct notifier_block *); extern struct atomic_notifier_head i386die_chain; -- cgit v1.2.3 From ae9a5b85655d7133ab8e7c99b742ef20c8dbb7d2 Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 26 Jun 2006 00:25:26 -0700 Subject: [PATCH] Notify page fault call chain for ia64 Overloading of page fault notification with the notify_die() has performance issues(since the only interested components for page fault is kprobes and/or kdb) and hence this patch introduces the new notifier call chain exclusively for page fault notifications their by avoiding notifying unnecessary components in the do_page_fault() code path. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/mm/fault.c | 36 +++++++++++++++++++++++++++++++++++- include/asm-ia64/kdebug.h | 2 ++ 2 files changed, 37 insertions(+), 1 deletion(-) diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index d98ec49570b..14ef7cceb20 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -19,6 +19,40 @@ extern void die (char *, struct pt_regs *, long); +#ifdef CONFIG_KPROBES +ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); + +/* Hook to register for page fault notifications */ +int register_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); +} + +int unregister_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); +} + +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .str = str, + .err = err, + .trapnr = trap, + .signr = sig + }; + return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); +} +#else +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + return NOTIFY_DONE; +} +#endif + /* * Return TRUE if ADDRESS points at a page in the kernel's mapped segment * (inside region 5, on ia64) and that page is present. @@ -84,7 +118,7 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re /* * This is to handle the kprobes on user space access instructions */ - if (notify_die(DIE_PAGE_FAULT, "page fault", regs, code, TRAP_BRKPT, + if (notify_page_fault(DIE_PAGE_FAULT, "page fault", regs, code, TRAP_BRKPT, SIGSEGV) == NOTIFY_STOP) return; diff --git a/include/asm-ia64/kdebug.h b/include/asm-ia64/kdebug.h index c195a9ad125..aed7142f9e4 100644 --- a/include/asm-ia64/kdebug.h +++ b/include/asm-ia64/kdebug.h @@ -40,6 +40,8 @@ struct die_args { extern int register_die_notifier(struct notifier_block *); extern int unregister_die_notifier(struct notifier_block *); +extern int register_page_fault_notifier(struct notifier_block *); +extern int unregister_page_fault_notifier(struct notifier_block *); extern struct atomic_notifier_head ia64die_chain; enum die_val { -- cgit v1.2.3 From 4f9e87c0454059e80f3811f95ad9f40ed28c69a2 Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 26 Jun 2006 00:25:27 -0700 Subject: [PATCH] Notify page fault call chain for powerpc Overloading of page fault notification with the notify_die() has performance issues(since the only interested components for page fault is kprobes and/or kdb) and hence this patch introduces the new notifier call chain exclusively for page fault notifications their by avoiding notifying unnecessary components in the do_page_fault() code path. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/mm/fault.c | 36 +++++++++++++++++++++++++++++++++++- include/asm-powerpc/kdebug.h | 2 ++ 2 files changed, 37 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index fdbba4206d5..a0a9e1e0061 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -40,6 +40,40 @@ #include #include +#ifdef CONFIG_KPROBES +ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); + +/* Hook to register for page fault notifications */ +int register_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); +} + +int unregister_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); +} + +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .str = str, + .err = err, + .trapnr = trap, + .signr = sig + }; + return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); +} +#else +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + return NOTIFY_DONE; +} +#endif + /* * Check whether the instruction at regs->nip is a store using * an update addressing form which will update r1. @@ -142,7 +176,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address, is_write = error_code & ESR_DST; #endif /* CONFIG_4xx || CONFIG_BOOKE */ - if (notify_die(DIE_PAGE_FAULT, "page_fault", regs, error_code, + if (notify_page_fault(DIE_PAGE_FAULT, "page_fault", regs, error_code, 11, SIGSEGV) == NOTIFY_STOP) return 0; diff --git a/include/asm-powerpc/kdebug.h b/include/asm-powerpc/kdebug.h index c01786ab5fa..532bfee934f 100644 --- a/include/asm-powerpc/kdebug.h +++ b/include/asm-powerpc/kdebug.h @@ -18,6 +18,8 @@ struct die_args { extern int register_die_notifier(struct notifier_block *); extern int unregister_die_notifier(struct notifier_block *); +extern int register_page_fault_notifier(struct notifier_block *); +extern int unregister_page_fault_notifier(struct notifier_block *); extern struct atomic_notifier_head powerpc_die_chain; /* Grossly misnamed. */ -- cgit v1.2.3 From d98f8f05188b45168db43df8ddc9feeb0b1cd512 Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 26 Jun 2006 00:25:27 -0700 Subject: [PATCH] Notify page fault call chain for sparc64 Overloading of page fault notification with the notify_die() has performance issues(since the only interested components for page fault is kprobes and/or kdb) and hence this patch introduces the new notifier call chain exclusively for page fault notifications their by avoiding notifying unnecessary components in the do_page_fault() code path. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/sparc64/mm/fault.c | 36 +++++++++++++++++++++++++++++++++++- include/asm-sparc64/kdebug.h | 2 ++ 2 files changed, 37 insertions(+), 1 deletion(-) diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 6e002aacb96..1605967cce9 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -31,6 +31,40 @@ #include #include +#ifdef CONFIG_KPROBES +ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); + +/* Hook to register for page fault notifications */ +int register_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); +} + +int unregister_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); +} + +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .str = str, + .err = err, + .trapnr = trap, + .signr = sig + }; + return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); +} +#else +static inline int notify_page_fault(enum die_val val, const char *str, + struct pt_regs *regs, long err, int trap, int sig) +{ + return NOTIFY_DONE; +} +#endif + /* * To debug kernel to catch accesses to certain virtual/physical addresses. * Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints. @@ -263,7 +297,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) fault_code = get_thread_fault_code(); - if (notify_die(DIE_PAGE_FAULT, "page_fault", regs, + if (notify_page_fault(DIE_PAGE_FAULT, "page_fault", regs, fault_code, 0, SIGSEGV) == NOTIFY_STOP) return; diff --git a/include/asm-sparc64/kdebug.h b/include/asm-sparc64/kdebug.h index 4040d127ac3..11251bdd00c 100644 --- a/include/asm-sparc64/kdebug.h +++ b/include/asm-sparc64/kdebug.h @@ -17,6 +17,8 @@ struct die_args { extern int register_die_notifier(struct notifier_block *); extern int unregister_die_notifier(struct notifier_block *); +extern int register_page_fault_notifier(struct notifier_block *); +extern int unregister_page_fault_notifier(struct notifier_block *); extern struct atomic_notifier_head sparc64die_chain; extern void bad_trap(struct pt_regs *, long); -- cgit v1.2.3 From 3d5631e0631a11633c649bc995a6537ec21b67b4 Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 26 Jun 2006 00:25:28 -0700 Subject: [PATCH] Kprobes registers for notify page fault Kprobes now registers for page fault notifications. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/kprobes.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index f095178e48c..507f26e7ae7 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -556,6 +556,11 @@ valid_p: } static struct notifier_block kprobe_exceptions_nb = { + .notifier_call = kprobe_exceptions_notify, + .priority = 0x7fffffff /* we need to be notified first */ +}; + +static struct notifier_block kprobe_page_fault_nb = { .notifier_call = kprobe_exceptions_notify, .priority = 0x7fffffff /* we need to notified first */ }; @@ -673,6 +678,9 @@ static int __init init_kprobes(void) if (!err) err = register_die_notifier(&kprobe_exceptions_nb); + if (!err) + err = register_page_fault_notifier(&kprobe_page_fault_nb); + return err; } -- cgit v1.2.3 From e6f47f978bcd5413fff610613b18e9e0eab9bc1b Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 26 Jun 2006 00:25:29 -0700 Subject: [PATCH] Notify page fault call chain With this patch Kprobes now registers for page fault notifications only when their is an active probe registered. Once all the active probes are unregistered their is no need to be notified of page faults and kprobes unregisters itself from the page fault notifications. Hence we will have ZERO side effects when no probes are active. Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/kprobes.h | 1 + include/asm-ia64/kprobes.h | 1 + include/asm-powerpc/kprobes.h | 2 ++ include/asm-sparc64/kprobes.h | 1 + include/asm-x86_64/kprobes.h | 1 + kernel/kprobes.c | 30 +++++++++++++++++++++++------- 6 files changed, 29 insertions(+), 7 deletions(-) diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index 57d157c5cf8..0730a20f6db 100644 --- a/include/asm-i386/kprobes.h +++ b/include/asm-i386/kprobes.h @@ -44,6 +44,7 @@ typedef u8 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES +#define ARCH_INACTIVE_KPROBE_COUNT 0 void arch_remove_kprobe(struct kprobe *p); void kretprobe_trampoline(void); diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 8c0fc227f0f..2418a787c40 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -82,6 +82,7 @@ struct kprobe_ctlblk { #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES +#define ARCH_INACTIVE_KPROBE_COUNT 1 #define SLOT0_OPCODE_SHIFT (37) #define SLOT1_p1_OPCODE_SHIFT (37 - (64-46)) diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h index f466bc804f4..2d0af52c823 100644 --- a/include/asm-powerpc/kprobes.h +++ b/include/asm-powerpc/kprobes.h @@ -50,6 +50,8 @@ typedef unsigned int kprobe_opcode_t; IS_TWI(instr) || IS_TDI(instr)) #define ARCH_SUPPORTS_KRETPROBES +#define ARCH_INACTIVE_KPROBE_COUNT 1 + void kretprobe_trampoline(void); extern void arch_remove_kprobe(struct kprobe *p); diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h index e9bb26f770e..15065af566c 100644 --- a/include/asm-sparc64/kprobes.h +++ b/include/asm-sparc64/kprobes.h @@ -12,6 +12,7 @@ typedef u32 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define arch_remove_kprobe(p) do {} while (0) +#define ARCH_INACTIVE_KPROBE_COUNT 0 /* Architecture specific copy of original instruction*/ struct arch_specific_insn { diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h index 98a1e95ddb9..d36febd9bb1 100644 --- a/include/asm-x86_64/kprobes.h +++ b/include/asm-x86_64/kprobes.h @@ -43,6 +43,7 @@ typedef u8 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES +#define ARCH_INACTIVE_KPROBE_COUNT 1 void kretprobe_trampoline(void); extern void arch_remove_kprobe(struct kprobe *p); diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 507f26e7ae7..64aab081153 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -47,11 +47,17 @@ static struct hlist_head kprobe_table[KPROBE_TABLE_SIZE]; static struct hlist_head kretprobe_inst_table[KPROBE_TABLE_SIZE]; +static atomic_t kprobe_count; DEFINE_MUTEX(kprobe_mutex); /* Protects kprobe_table */ DEFINE_SPINLOCK(kretprobe_lock); /* Protects kretprobe_inst_table */ static DEFINE_PER_CPU(struct kprobe *, kprobe_instance) = NULL; +static struct notifier_block kprobe_page_fault_nb = { + .notifier_call = kprobe_exceptions_notify, + .priority = 0x7fffffff /* we need to notified first */ +}; + #ifdef __ARCH_WANT_KPROBES_INSN_SLOT /* * kprobe->ainsn.insn points to the copy of the instruction to be @@ -465,6 +471,8 @@ static int __kprobes __register_kprobe(struct kprobe *p, old_p = get_kprobe(p->addr); if (old_p) { ret = register_aggr_kprobe(old_p, p); + if (!ret) + atomic_inc(&kprobe_count); goto out; } @@ -475,6 +483,10 @@ static int __kprobes __register_kprobe(struct kprobe *p, hlist_add_head_rcu(&p->hlist, &kprobe_table[hash_ptr(p->addr, KPROBE_HASH_BITS)]); + if (atomic_add_return(1, &kprobe_count) == \ + (ARCH_INACTIVE_KPROBE_COUNT + 1)) + register_page_fault_notifier(&kprobe_page_fault_nb); + arch_arm_kprobe(p); out: @@ -553,6 +565,16 @@ valid_p: } mutex_unlock(&kprobe_mutex); } + + /* Call unregister_page_fault_notifier() + * if no probes are active + */ + mutex_lock(&kprobe_mutex); + if (atomic_add_return(-1, &kprobe_count) == \ + ARCH_INACTIVE_KPROBE_COUNT) + unregister_page_fault_notifier(&kprobe_page_fault_nb); + mutex_unlock(&kprobe_mutex); + return; } static struct notifier_block kprobe_exceptions_nb = { @@ -560,10 +582,6 @@ static struct notifier_block kprobe_exceptions_nb = { .priority = 0x7fffffff /* we need to be notified first */ }; -static struct notifier_block kprobe_page_fault_nb = { - .notifier_call = kprobe_exceptions_notify, - .priority = 0x7fffffff /* we need to notified first */ -}; int __kprobes register_jprobe(struct jprobe *jp) { @@ -673,14 +691,12 @@ static int __init init_kprobes(void) INIT_HLIST_HEAD(&kprobe_table[i]); INIT_HLIST_HEAD(&kretprobe_inst_table[i]); } + atomic_set(&kprobe_count, 0); err = arch_init_kprobes(); if (!err) err = register_die_notifier(&kprobe_exceptions_nb); - if (!err) - err = register_page_fault_notifier(&kprobe_page_fault_nb); - return err; } -- cgit v1.2.3 From 6aa65472d18703064898eefb5eb58f7ecd0d8912 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Mon, 26 Jun 2006 00:25:30 -0700 Subject: [PATCH] CAPI crash / race condition I am getting more or less reproducible crashes from the CAPI subsystem using the fcdsl driver: Unable to handle kernel NULL pointer dereference at virtual address 00000010 printing eip: c39bbca4 *pde = 00000000 Oops: 0000 [#1] Modules linked in: netconsole capi capifs 3c59x mii fcdsl kernelcapi uhci_hcd usbcore ide_cd cdrom CPU: 0 EIP: 0060:[] Tainted: P VLI EFLAGS: 00010202 (2.6.16.11 #3) EIP is at handle_minor_send+0x17a/0x241 [capi] eax: c24abbc0 ebx: c0b4c980 ecx: 00000010 edx: 00000010 esi: c1679140 edi: c2783016 ebp: 0000c28d esp: c0327e24 ds: 007b es: 007b ss: 0068 Process swapper (pid: 0, threadinfo=c0326000 task=c02e1300) Stack: <0>000005b4 c1679180 00000000 c28d0000 c1ce04e0 c2f69654 c221604e c1679140 c39bc19a 00000038 c20c0400 c075c560 c1f2f800 00000000 c01dc9b5 c1e96a40 c075c560 c2ed64c0 c1e96a40 c01dcd3b c2fb94e8 c075c560 c0327f00 c1e96a40 Call Trace: [] capinc_tty_write+0xda/0xf3 [capi] [] ppp_sync_push+0x52/0xfe [] ppp_sync_send+0x1f5/0x204 [] ppp_push+0x3e/0x9c [] ppp_xmit_process+0x422/0x4cc [] ppp_start_xmit+0x1c1/0x1f6 [] qdisc_restart+0xa7/0x135 [] dev_queue_xmit+0xba/0x19e [] ip_output+0x1eb/0x236 [] ip_forward+0x1c1/0x21a [] ip_rcv+0x38e/0x3ea [] netif_receive_skb+0x166/0x195 [] process_backlog+0x6d/0xd2 [] net_rx_action+0x6a/0xff [] __do_softirq+0x35/0x7d [] do_softirq+0x22/0x26 [] do_IRQ+0x1e/0x25 [] common_interrupt+0x1a/0x20 [] default_idle+0x2b/0x53 [] cpu_idle+0x39/0x4e [] start_kernel+0x20b/0x20d Code: c0 e8 b3 b6 77 fc 85 c0 75 10 68 d8 c8 9b c3 e8 82 3d 75 fc 8b 43 60 5a eb 50 8d 56 50 c7 00 00 00 00 00 66 89 68 04 eb 02 89 ca <8b> 0a 85 c9 75 f8 89 02 89 da ff 46 54 8b 46 10 e8 30 79 fd ff <0>Kernel panic - not syncing: Fatal exception in interrupt That oops took me to the "ackqueue" implementation in capi.c. The crash occured in capincci_add_ack() (auto-inlined by the compiler). I read the code a bit and finally decided to replace the custom linked list implementation (struct capiminor->ackqueue) by a struct list_head. That did not solve the crash, but produced the following interresting oops: Unable to handle kernel paging request at virtual address 00200200 printing eip: c39bb1f5 *pde = 00000000 Oops: 0002 [#1] Modules linked in: netconsole capi capifs 3c59x mii fcdsl kernelcapi uhci_hcd usbcore ide_cd cdrom CPU: 0 EIP: 0060:[] Tainted: P VLI EFLAGS: 00010246 (2.6.16.11 #3) EIP is at capiminor_del_ack+0x18/0x49 [capi] eax: 00200200 ebx: c18d41a0 ecx: c1385620 edx: 00100100 esi: 0000d147 edi: 00001103 ebp: 0000d147 esp: c1093f3c ds: 007b es: 007b ss: 0068 Process events/0 (pid: 3, threadinfo=c1092000 task=c1089030) Stack: <0>c2a17580 c18d41a0 c39bbd16 00000038 c18d41e0 00000000 d147c640 c29e0b68 c29e0b90 00000212 c29e0b68 c39932b2 c29e0bb0 c10736a0 c0119ef0 c399326c c10736a8 c10736a0 c10736b0 c0119f93 c011a06e 00000001 00000000 00000000 Call Trace: [] handle_minor_send+0x1af/0x241 [capi] [] recv_handler+0x46/0x5f [kernelcapi] [] run_workqueue+0x5e/0x8d [] recv_handler+0x0/0x5f [kernelcapi] [] worker_thread+0x0/0x10b [] worker_thread+0xdb/0x10b [] default_wake_function+0x0/0xc [] kthread+0x90/0xbc [] kthread+0x0/0xbc [] kernel_thread_helper+0x5/0xb Code: 7e 02 89 ee 89 f0 5a f7 d0 c1 f8 1f 5b 21 f0 5e 5f 5d c3 56 53 8b 48 50 89 d6 89 c3 8b 11 eb 2f 66 39 71 08 75 25 8b 41 04 8b 11 <89> 10 89 42 04 c7 01 00 01 10 00 89 c8 c7 41 04 00 02 20 00 e8 The interresting part of it is the "virtual address 00200200", which is LIST_POISON2. I thought about some race condition, but as this is an UP system, it leads to questions on how it can happen. If we look at EFLAGS: 00010202, we see that interrupts are enabled at the time of the crash (eflags & 0x200). Finally, I don't understand all the capi code, but I think that handle_minor_send() is racing somehow against capi_recv_message(), which call both capiminor_del_ack(). So if an IRQ occurs in the middle of capiminor_del_ack() and another instance of it is invoked, it leads to linked list corruption. I came up with the following patch. With this, I could not reproduce the crash anymore. Clearly, this is not the correct fix for the issue. As this seems to be some locking issue, there might be more locking issues in that code. For example, doesn't the whole struct capiminor have to be locked somehow? Cc: Carsten Paeth Cc: Kai Germaschewski Cc: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/capi/capi.c | 54 ++++++++++++++++++++++++++++-------------------- 1 file changed, 32 insertions(+), 22 deletions(-) diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 173c899a1fb..2e541fa0202 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -87,6 +87,11 @@ struct capincci; #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE struct capiminor; +struct datahandle_queue { + struct list_head list; + u16 datahandle; +}; + struct capiminor { struct list_head list; struct capincci *nccip; @@ -109,12 +114,9 @@ struct capiminor { int outbytes; /* transmit path */ - struct datahandle_queue { - struct datahandle_queue *next; - u16 datahandle; - } *ackqueue; + struct list_head ackqueue; int nack; - + spinlock_t ackqlock; }; #endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */ @@ -156,48 +158,54 @@ static LIST_HEAD(capiminor_list); static int capincci_add_ack(struct capiminor *mp, u16 datahandle) { - struct datahandle_queue *n, **pp; + struct datahandle_queue *n; + unsigned long flags; n = kmalloc(sizeof(*n), GFP_ATOMIC); - if (!n) { - printk(KERN_ERR "capi: alloc datahandle failed\n"); - return -1; + if (unlikely(!n)) { + printk(KERN_ERR "capi: alloc datahandle failed\n"); + return -1; } - n->next = NULL; n->datahandle = datahandle; - for (pp = &mp->ackqueue; *pp; pp = &(*pp)->next) ; - *pp = n; + INIT_LIST_HEAD(&n->list); + spin_lock_irqsave(&mp->ackqlock, flags); + list_add_tail(&n->list, &mp->ackqueue); mp->nack++; + spin_unlock_irqrestore(&mp->ackqlock, flags); return 0; } static int capiminor_del_ack(struct capiminor *mp, u16 datahandle) { - struct datahandle_queue **pp, *p; + struct datahandle_queue *p, *tmp; + unsigned long flags; - for (pp = &mp->ackqueue; *pp; pp = &(*pp)->next) { - if ((*pp)->datahandle == datahandle) { - p = *pp; - *pp = (*pp)->next; + spin_lock_irqsave(&mp->ackqlock, flags); + list_for_each_entry_safe(p, tmp, &mp->ackqueue, list) { + if (p->datahandle == datahandle) { + list_del(&p->list); kfree(p); mp->nack--; + spin_unlock_irqrestore(&mp->ackqlock, flags); return 0; } } + spin_unlock_irqrestore(&mp->ackqlock, flags); return -1; } static void capiminor_del_all_ack(struct capiminor *mp) { - struct datahandle_queue **pp, *p; + struct datahandle_queue *p, *tmp; + unsigned long flags; - pp = &mp->ackqueue; - while (*pp) { - p = *pp; - *pp = (*pp)->next; + spin_lock_irqsave(&mp->ackqlock, flags); + list_for_each_entry_safe(p, tmp, &mp->ackqueue, list) { + list_del(&p->list); kfree(p); mp->nack--; } + spin_unlock_irqrestore(&mp->ackqlock, flags); } @@ -220,6 +228,8 @@ static struct capiminor *capiminor_alloc(struct capi20_appl *ap, u32 ncci) mp->ncci = ncci; mp->msgid = 0; atomic_set(&mp->ttyopencount,0); + INIT_LIST_HEAD(&mp->ackqueue); + spin_lock_init(&mp->ackqlock); skb_queue_head_init(&mp->inqueue); skb_queue_head_init(&mp->outqueue); -- cgit v1.2.3 From 9f13fae2479ed2e2801d538d6a22309123c704f6 Mon Sep 17 00:00:00 2001 From: Eric Sesterhenn Date: Mon, 26 Jun 2006 00:25:32 -0700 Subject: [PATCH] Fix typo in drivers/isdn/hisax/q931.c This fixes coverity bug #517. Since IESIZE is greater than IESIZE_NI1 we might run past the end of ielist_ni1. This fixes it by using the proper IESIZE_NI1 define. Signed-off-by: Eric Sesterhenn Acked-by: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/hisax/q931.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/isdn/hisax/q931.c b/drivers/isdn/hisax/q931.c index abecabf8c27..aacbf0d14b6 100644 --- a/drivers/isdn/hisax/q931.c +++ b/drivers/isdn/hisax/q931.c @@ -1402,12 +1402,12 @@ dlogframe(struct IsdnCardState *cs, struct sk_buff *skb, int dir) } /* No, locate it in the table */ if (cset == 0) { - for (i = 0; i < IESIZE; i++) + for (i = 0; i < IESIZE_NI1; i++) if (*buf == ielist_ni1[i].nr) break; /* When not found, give appropriate msg */ - if (i != IESIZE) { + if (i != IESIZE_NI1) { dp += sprintf(dp, " %s\n", ielist_ni1[i].descr); dp += ielist_ni1[i].f(dp, buf); } else -- cgit v1.2.3 From 06163f86349f0b39948a86d21b2db0d53e47fd8c Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 26 Jun 2006 00:25:33 -0700 Subject: [PATCH] isdn4linux: Gigaset base driver: improve error recovery The following patch to the Siemens Gigaset base driver adds graceful recovery for some frequently encountered error conditions, by retrying failed control requests (eg. stalled control pipe), and by closing and reopening the AT command channel when it appears to be stuck. Signed-off-by: Tilman Schmidt Acked-by: Hansjoerg Lipp Cc: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/gigaset/bas-gigaset.c | 298 ++++++++++++++++++++++--------------- 1 file changed, 181 insertions(+), 117 deletions(-) diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index eb41aba3dde..8a45715dd4c 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -65,23 +65,22 @@ static struct usb_device_id gigaset_table [] = { MODULE_DEVICE_TABLE(usb, gigaset_table); -/*======================= local function prototypes =============================*/ +/*======================= local function prototypes ==========================*/ -/* This function is called if a new device is connected to the USB port. It - * checks whether this new device belongs to this driver. - */ +/* function called if a new device belonging to this driver is connected */ static int gigaset_probe(struct usb_interface *interface, const struct usb_device_id *id); /* Function will be called if the device is unplugged */ static void gigaset_disconnect(struct usb_interface *interface); -static void read_ctrl_callback(struct urb *, struct pt_regs *); +static int atread_submit(struct cardstate *, int); static void stopurbs(struct bas_bc_state *); +static int req_submit(struct bc_state *, int, int, int); static int atwrite_submit(struct cardstate *, unsigned char *, int); static int start_cbsend(struct cardstate *); -/*==============================================================================*/ +/*============================================================================*/ struct bas_cardstate { struct usb_device *udev; /* USB device pointer */ @@ -91,6 +90,7 @@ struct bas_cardstate { struct urb *urb_ctrl; /* control pipe default URB */ struct usb_ctrlrequest dr_ctrl; struct timer_list timer_ctrl; /* control request timeout */ + int retry_ctrl; struct timer_list timer_atrdy; /* AT command ready timeout */ struct urb *urb_cmd_out; /* for sending AT commands */ @@ -307,6 +307,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) * hang up any existing connection because of an unrecoverable error * This function may be called from any context and takes care of scheduling * the necessary actions for execution outside of interrupt context. + * cs->lock must not be held. * argument: * B channel control structure */ @@ -325,14 +326,17 @@ static inline void error_hangup(struct bc_state *bcs) /* error_reset * reset Gigaset device because of an unrecoverable error - * This function may be called from any context, and should take care of + * This function may be called from any context, and takes care of * scheduling the necessary actions for execution outside of interrupt context. - * Right now, it just generates a kernel message calling for help. + * cs->lock must not be held. * argument: * controller state structure */ static inline void error_reset(struct cardstate *cs) { + /* close AT command channel to recover (ignore errors) */ + req_submit(cs->bcs, HD_CLOSE_ATCHANNEL, 0, BAS_TIMEOUT); + //FIXME try to recover without bothering the user dev_err(cs->dev, "unrecoverable error - please disconnect Gigaset base to reset\n"); @@ -403,14 +407,30 @@ static void cmd_in_timeout(unsigned long data) { struct cardstate *cs = (struct cardstate *) data; struct bas_cardstate *ucs = cs->hw.bas; + int rc; if (!ucs->rcvbuf_size) { gig_dbg(DEBUG_USBREQ, "%s: no receive in progress", __func__); return; } - dev_err(cs->dev, "timeout reading AT response\n"); - error_reset(cs); //FIXME retry? + if (ucs->retry_cmd_in++ < BAS_RETRY) { + dev_notice(cs->dev, "control read: timeout, retry %d\n", + ucs->retry_cmd_in); + rc = atread_submit(cs, BAS_TIMEOUT); + if (rc >= 0 || rc == -ENODEV) + /* resubmitted or disconnected */ + /* - bypass regular exit block */ + return; + } else { + dev_err(cs->dev, + "control read: timeout, giving up after %d tries\n", + ucs->retry_cmd_in); + } + kfree(ucs->rcvbuf); + ucs->rcvbuf = NULL; + ucs->rcvbuf_size = 0; + error_reset(cs); } /* set/clear bits in base connection state, return previous state @@ -428,6 +448,96 @@ inline static int update_basstate(struct bas_cardstate *ucs, return state; } +/* read_ctrl_callback + * USB completion handler for control pipe input + * called by the USB subsystem in interrupt context + * parameter: + * urb USB request block + * urb->context = inbuf structure for controller state + */ +static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) +{ + struct inbuf_t *inbuf = urb->context; + struct cardstate *cs = inbuf->cs; + struct bas_cardstate *ucs = cs->hw.bas; + int have_data = 0; + unsigned numbytes; + int rc; + + update_basstate(ucs, 0, BS_ATRDPEND); + + if (!ucs->rcvbuf_size) { + dev_warn(cs->dev, "%s: no receive in progress\n", __func__); + return; + } + + del_timer(&ucs->timer_cmd_in); + + switch (urb->status) { + case 0: /* normal completion */ + numbytes = urb->actual_length; + if (unlikely(numbytes != ucs->rcvbuf_size)) { + dev_warn(cs->dev, + "control read: received %d chars, expected %d\n", + numbytes, ucs->rcvbuf_size); + if (numbytes > ucs->rcvbuf_size) + numbytes = ucs->rcvbuf_size; + } + + /* copy received bytes to inbuf */ + have_data = gigaset_fill_inbuf(inbuf, ucs->rcvbuf, numbytes); + + if (unlikely(numbytes < ucs->rcvbuf_size)) { + /* incomplete - resubmit for remaining bytes */ + ucs->rcvbuf_size -= numbytes; + ucs->retry_cmd_in = 0; + rc = atread_submit(cs, BAS_TIMEOUT); + if (rc >= 0 || rc == -ENODEV) + /* resubmitted or disconnected */ + /* - bypass regular exit block */ + return; + error_reset(cs); + } + break; + + case -ENOENT: /* cancelled */ + case -ECONNRESET: /* cancelled (async) */ + case -EINPROGRESS: /* pending */ + case -ENODEV: /* device removed */ + case -ESHUTDOWN: /* device shut down */ + /* no action necessary */ + gig_dbg(DEBUG_USBREQ, "%s: %s", + __func__, get_usb_statmsg(urb->status)); + break; + + default: /* severe trouble */ + dev_warn(cs->dev, "control read: %s\n", + get_usb_statmsg(urb->status)); + if (ucs->retry_cmd_in++ < BAS_RETRY) { + dev_notice(cs->dev, "control read: retry %d\n", + ucs->retry_cmd_in); + rc = atread_submit(cs, BAS_TIMEOUT); + if (rc >= 0 || rc == -ENODEV) + /* resubmitted or disconnected */ + /* - bypass regular exit block */ + return; + } else { + dev_err(cs->dev, + "control read: giving up after %d tries\n", + ucs->retry_cmd_in); + } + error_reset(cs); + } + + kfree(ucs->rcvbuf); + ucs->rcvbuf = NULL; + ucs->rcvbuf_size = 0; + if (have_data) { + gig_dbg(DEBUG_INTR, "%s-->BH", __func__); + gigaset_schedule_event(cs); + } +} + /* atread_submit * submit an HD_READ_ATMESSAGE command URB and optionally start a timeout * parameters: @@ -466,7 +576,7 @@ static int atread_submit(struct cardstate *cs, int timeout) if ((ret = usb_submit_urb(ucs->urb_cmd_in, SLAB_ATOMIC)) != 0) { update_basstate(ucs, 0, BS_ATRDPEND); dev_err(cs->dev, "could not submit HD_READ_ATMESSAGE: %s\n", - get_usb_statmsg(ret)); + get_usb_rcmsg(ret)); return ret; } @@ -611,9 +721,12 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) kfree(ucs->rcvbuf); ucs->rcvbuf = NULL; ucs->rcvbuf_size = 0; - if (rc != -ENODEV) + if (rc != -ENODEV) { //FIXME corrective action? + spin_unlock_irqrestore(&cs->lock, flags); error_reset(cs); + break; + } } spin_unlock_irqrestore(&cs->lock, flags); break; @@ -643,97 +756,6 @@ resubmit: } } -/* read_ctrl_callback - * USB completion handler for control pipe input - * called by the USB subsystem in interrupt context - * parameter: - * urb USB request block - * urb->context = inbuf structure for controller state - */ -static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) -{ - struct inbuf_t *inbuf = urb->context; - struct cardstate *cs = inbuf->cs; - struct bas_cardstate *ucs = cs->hw.bas; - int have_data = 0; - unsigned numbytes; - int rc; - - update_basstate(ucs, 0, BS_ATRDPEND); - - if (!ucs->rcvbuf_size) { - dev_warn(cs->dev, "%s: no receive in progress\n", __func__); - return; - } - - del_timer(&ucs->timer_cmd_in); - - switch (urb->status) { - case 0: /* normal completion */ - numbytes = urb->actual_length; - if (unlikely(numbytes == 0)) { - dev_warn(cs->dev, - "control read: empty block received\n"); - goto retry; - } - if (unlikely(numbytes != ucs->rcvbuf_size)) { - dev_warn(cs->dev, - "control read: received %d chars, expected %d\n", - numbytes, ucs->rcvbuf_size); - if (numbytes > ucs->rcvbuf_size) - numbytes = ucs->rcvbuf_size; - } - - /* copy received bytes to inbuf */ - have_data = gigaset_fill_inbuf(inbuf, ucs->rcvbuf, numbytes); - - if (unlikely(numbytes < ucs->rcvbuf_size)) { - /* incomplete - resubmit for remaining bytes */ - ucs->rcvbuf_size -= numbytes; - ucs->retry_cmd_in = 0; - goto retry; - } - break; - - case -ENOENT: /* cancelled */ - case -ECONNRESET: /* cancelled (async) */ - case -EINPROGRESS: /* pending */ - case -ENODEV: /* device removed */ - case -ESHUTDOWN: /* device shut down */ - /* no action necessary */ - gig_dbg(DEBUG_USBREQ, "%s: %s", - __func__, get_usb_statmsg(urb->status)); - break; - - default: /* severe trouble */ - dev_warn(cs->dev, "control read: %s\n", - get_usb_statmsg(urb->status)); - retry: - if (ucs->retry_cmd_in++ < BAS_RETRY) { - dev_notice(cs->dev, "control read: retry %d\n", - ucs->retry_cmd_in); - rc = atread_submit(cs, BAS_TIMEOUT); - if (rc >= 0 || rc == -ENODEV) - /* resubmitted or disconnected */ - /* - bypass regular exit block */ - return; - } else { - dev_err(cs->dev, - "control read: giving up after %d tries\n", - ucs->retry_cmd_in); - } - error_reset(cs); - } - - kfree(ucs->rcvbuf); - ucs->rcvbuf = NULL; - ucs->rcvbuf_size = 0; - if (have_data) { - gig_dbg(DEBUG_INTR, "%s-->BH", __func__); - gigaset_schedule_event(cs); - } -} - /* read_iso_callback * USB completion handler for B channel isochronous input * called by the USB subsystem in interrupt context @@ -1378,6 +1400,7 @@ static void req_timeout(unsigned long data) case HD_CLOSE_B1CHANNEL: dev_err(bcs->cs->dev, "timeout closing channel %d\n", bcs->channel + 1); + error_reset(bcs->cs); break; default: @@ -1396,22 +1419,61 @@ static void req_timeout(unsigned long data) static void write_ctrl_callback(struct urb *urb, struct pt_regs *regs) { struct bas_cardstate *ucs = urb->context; + int rc; unsigned long flags; - spin_lock_irqsave(&ucs->lock, flags); - if (urb->status && ucs->pending) { - dev_err(&ucs->interface->dev, - "control request 0x%02x failed: %s\n", - ucs->pending, get_usb_statmsg(urb->status)); - del_timer(&ucs->timer_ctrl); - ucs->pending = 0; - } - /* individual handling of specific request types */ - switch (ucs->pending) { - case HD_DEVICE_INIT_ACK: /* no reply expected */ - ucs->pending = 0; + /* check status */ + switch (urb->status) { + case 0: /* normal completion */ + spin_lock_irqsave(&ucs->lock, flags); + switch (ucs->pending) { + case HD_DEVICE_INIT_ACK: /* no reply expected */ + del_timer(&ucs->timer_ctrl); + ucs->pending = 0; + break; + } + spin_unlock_irqrestore(&ucs->lock, flags); + return; + + case -ENOENT: /* cancelled */ + case -ECONNRESET: /* cancelled (async) */ + case -EINPROGRESS: /* pending */ + case -ENODEV: /* device removed */ + case -ESHUTDOWN: /* device shut down */ + /* ignore silently */ + gig_dbg(DEBUG_USBREQ, "%s: %s", + __func__, get_usb_statmsg(urb->status)); break; + + default: /* any failure */ + if (++ucs->retry_ctrl > BAS_RETRY) { + dev_err(&ucs->interface->dev, + "control request 0x%02x failed: %s\n", + ucs->dr_ctrl.bRequest, + get_usb_statmsg(urb->status)); + break; /* give up */ + } + dev_notice(&ucs->interface->dev, + "control request 0x%02x: %s, retry %d\n", + ucs->dr_ctrl.bRequest, get_usb_statmsg(urb->status), + ucs->retry_ctrl); + /* urb->dev is clobbered by USB subsystem */ + urb->dev = ucs->udev; + rc = usb_submit_urb(urb, SLAB_ATOMIC); + if (unlikely(rc)) { + dev_err(&ucs->interface->dev, + "could not resubmit request 0x%02x: %s\n", + ucs->dr_ctrl.bRequest, get_usb_rcmsg(rc)); + break; + } + /* resubmitted */ + return; } + + /* failed, clear pending request */ + spin_lock_irqsave(&ucs->lock, flags); + del_timer(&ucs->timer_ctrl); + ucs->pending = 0; spin_unlock_irqrestore(&ucs->lock, flags); } @@ -1455,9 +1517,11 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout) usb_sndctrlpipe(ucs->udev, 0), (unsigned char*) &ucs->dr_ctrl, NULL, 0, write_ctrl_callback, ucs); - if ((ret = usb_submit_urb(ucs->urb_ctrl, SLAB_ATOMIC)) != 0) { + ucs->retry_ctrl = 0; + ret = usb_submit_urb(ucs->urb_ctrl, SLAB_ATOMIC); + if (unlikely(ret)) { dev_err(bcs->cs->dev, "could not submit request 0x%02x: %s\n", - req, get_usb_statmsg(ret)); + req, get_usb_rcmsg(ret)); spin_unlock_irqrestore(&ucs->lock, flags); return ret; } -- cgit v1.2.3 From 698e3ed9d4f47286134f66ea333b6679b29e59e4 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 26 Jun 2006 00:25:34 -0700 Subject: [PATCH] isdn4linux: Gigaset driver cleanup The following patch to the common part of the Siemens Gigaset driver prevents it from trying to send the +++ break sequence if the device has been disconnected, and removes a couple of assignments which didn't have any effect. Signed-off-by: Tilman Schmidt Acked-by: Hansjoerg Lipp Cc: Karsten Keil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/gigaset/ev-layer.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c index 18e05c09b71..44f02dbd111 100644 --- a/drivers/isdn/gigaset/ev-layer.c +++ b/drivers/isdn/gigaset/ev-layer.c @@ -1262,7 +1262,8 @@ static void do_action(int action, struct cardstate *cs, break; case ACT_HUPMODEM: /* send "+++" (hangup in unimodem mode) */ - cs->ops->write_cmd(cs, "+++", 3, NULL); + if (cs->connected) + cs->ops->write_cmd(cs, "+++", 3, NULL); break; case ACT_RING: /* get fresh AT state structure for new CID */ @@ -1294,7 +1295,6 @@ static void do_action(int action, struct cardstate *cs, break; case ACT_ICALL: handle_icall(cs, bcs, p_at_state); - at_state = *p_at_state; break; case ACT_FAILSDOWN: dev_warn(cs->dev, "Could not shut down the device.\n"); @@ -1334,10 +1334,8 @@ static void do_action(int action, struct cardstate *cs, */ at_state->pending_commands |= PC_DLE0; atomic_set(&cs->commands_pending, 1); - } else { + } else disconnect(p_at_state); - at_state = *p_at_state; - } break; case ACT_FAKEDLE0: at_state->int_var[VAR_ZDLE] = 0; @@ -1354,10 +1352,8 @@ static void do_action(int action, struct cardstate *cs, at_state->cid = -1; if (bcs && cs->onechannel) at_state->pending_commands |= PC_DLE0; - else { + else disconnect(p_at_state); - at_state = *p_at_state; - } schedule_init(cs, MS_RECOVER); break; case ACT_FAILDLE0: @@ -1410,7 +1406,6 @@ static void do_action(int action, struct cardstate *cs, case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL processing */ disconnect(p_at_state); - at_state = *p_at_state; break; case ACT_ABORTDIAL: /* error/timeout during dial preparation */ -- cgit v1.2.3 From 5024ad4af69b3570e18d312786dc46318a1bad1a Mon Sep 17 00:00:00 2001 From: Hansjoerg Lipp Date: Mon, 26 Jun 2006 00:25:35 -0700 Subject: [PATCH] i4l: Gigaset drivers: add IOCTLs to compat_ioctl.h Add the IOCTLs of the Gigaset drivers to compat_ioctl.h in order to make them available for 32 bit programs on 64 bit platforms. Please merge. Signed-off-by: Hansjoerg Lipp Acked-by: Tilman Schmidt Cc: Karsten Keil Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/compat_ioctl.c | 1 + include/linux/compat_ioctl.h | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 9eb9824dd33..d8ecfedef18 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -80,6 +80,7 @@ #include #include +#include #include #include diff --git a/include/linux/compat_ioctl.h b/include/linux/compat_ioctl.h index 89ab677cb99..917d62e4148 100644 --- a/include/linux/compat_ioctl.h +++ b/include/linux/compat_ioctl.h @@ -673,6 +673,11 @@ COMPATIBLE_IOCTL(CAPI_SET_FLAGS) COMPATIBLE_IOCTL(CAPI_CLR_FLAGS) COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT) COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT) +/* Siemens Gigaset */ +COMPATIBLE_IOCTL(GIGASET_REDIR) +COMPATIBLE_IOCTL(GIGASET_CONFIG) +COMPATIBLE_IOCTL(GIGASET_BRKCHARS) +COMPATIBLE_IOCTL(GIGASET_VERSION) /* Misc. */ COMPATIBLE_IOCTL(0x41545900) /* ATYIO_CLKR */ COMPATIBLE_IOCTL(0x41545901) /* ATYIO_CLKW */ -- cgit v1.2.3 From f05e15b59467d97c30fbffed80db9e00b73d640b Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 26 Jun 2006 00:25:39 -0700 Subject: [PATCH] nfsd kconfig: select things at the closest tristate instead of bool I noticed recently that my CONFIG_CRYPTO_MD5 turned into a y again instead of m. It turns out that CONFIG_NFSD_V4 is selecting it to be y even though I've chosen to compile nfsd as a module. In general when we have a bool sitting under a tristate it is better to select things you need from the tristate rather than the bool since that allows the things you select to be modules. The following patch does it for nfsd. Signed-off-by: Herbert Xu Cc: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/Kconfig | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index 1cdc043922d..6c5051802bd 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -1490,7 +1490,12 @@ config NFSD select LOCKD select SUNRPC select EXPORTFS - select NFS_ACL_SUPPORT if NFSD_V3_ACL || NFSD_V2_ACL + select NFSD_V2_ACL if NFSD_V3_ACL + select NFS_ACL_SUPPORT if NFSD_V2_ACL + select NFSD_TCP if NFSD_V4 + select CRYPTO_MD5 if NFSD_V4 + select CRYPTO if NFSD_V4 + select FS_POSIX_ACL if NFSD_V4 help If you want your Linux box to act as an NFS *server*, so that other computers on your local network which support NFS can access certain @@ -1528,7 +1533,6 @@ config NFSD_V3 config NFSD_V3_ACL bool "Provide server support for the NFSv3 ACL protocol extension" depends on NFSD_V3 - select NFSD_V2_ACL help Implement the NFSv3 ACL protocol extension for manipulating POSIX Access Control Lists on exported file systems. NFS clients should @@ -1538,10 +1542,6 @@ config NFSD_V3_ACL config NFSD_V4 bool "Provide NFSv4 server support (EXPERIMENTAL)" depends on NFSD_V3 && EXPERIMENTAL - select NFSD_TCP - select CRYPTO_MD5 - select CRYPTO - select FS_POSIX_ACL help If you would like to include the NFSv4 server as well as the NFSv2 and NFSv3 servers, say Y here. This feature is experimental, and -- cgit v1.2.3 From 5634708b5fce807bdf2091cfafc2fb24d791f0c8 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:40 -0700 Subject: [PATCH] proc: Fix the .. inode number on /proc//fd Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index c4a1ff371b8..13e3ab99eb7 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1196,7 +1196,8 @@ static struct inode_operations proc_pid_link_inode_operations = { static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) { - struct inode *inode = filp->f_dentry->d_inode; + struct dentry *dentry = filp->f_dentry; + struct inode *inode = dentry->d_inode; struct task_struct *p = proc_task(inode); unsigned int fd, tid, ino; int retval; @@ -1217,7 +1218,7 @@ static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) goto out; filp->f_pos++; case 1: - ino = fake_ino(tid, PROC_TID_INO); + ino = parent_ino(dentry); if (filldir(dirent, "..", 2, 1, ino, DT_DIR) < 0) goto out; filp->f_pos++; -- cgit v1.2.3 From ff9724a3f7a69f7b443c05981f84e28017c2fc5a Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:42 -0700 Subject: [PATCH] proc: Remove useless BKL in proc_pid_readlink We already call everything except do_proc_readlink outside of the BKL in proc_pid_followlink, and there appears to be nothing in do_proc_readlink that needs any special protection. So remove this leftover from one of the BKL cleanup efforts. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 13e3ab99eb7..7169a713da1 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1167,7 +1167,6 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b struct dentry *de; struct vfsmount *mnt = NULL; - lock_kernel(); if (current->fsuid != inode->i_uid && !capable(CAP_DAC_OVERRIDE)) goto out; @@ -1183,7 +1182,6 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b dput(de); mntput(mnt); out: - unlock_kernel(); return error; } -- cgit v1.2.3 From 167965495153ba9829d0a34b6800dbf5d94de8c8 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:42 -0700 Subject: [PATCH] proc: Remove unnecessary and misleading assignments from proc_pid_make_inode The removed fields are already set by proc_alloc_inode. Initializing them in proc_alloc_inode implies they need it for proper cleanup. At least ei->pde was not set on all paths making it look like proc_alloc_inode was buggy. So just remove the redundant assignments. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 7169a713da1..0762bc34d98 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1357,7 +1357,6 @@ static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_st /* Common stuff */ ei = PROC_I(inode); - ei->task = NULL; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_ino = fake_ino(task->pid, ino); @@ -1382,7 +1381,6 @@ out: return inode; out_unlock: - ei->pde = NULL; iput(inode); return NULL; } -- cgit v1.2.3 From 87bfbf679ffb1e95dd9ada694f66aafc4bfa5959 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:43 -0700 Subject: [PATCH] proc: Simplify the ownership rules for /proc Currently in /proc if the task is dumpable all of files are owned by the tasks effective users. Otherwise the files are owned by root. Unless it is the /proc// or /proc//task/ directory in that case we always make the directory owned by the effective user. However the special case for directories is pointless except as a way to read the effective user, because the permissions on both of those directories are world readable, and executable. /proc//status provides a much better way to read a processes effecitve userid, so it is silly to try to provide that on the directory. So this patch simplifies the code by removing a pointless special case and gets us one step closer to being able to remove the hard coded /proc inode numbers. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 0762bc34d98..fa0e6bee40f 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1371,7 +1371,7 @@ static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_st ei->type = ino; inode->i_uid = 0; inode->i_gid = 0; - if (ino == PROC_TGID_INO || ino == PROC_TID_INO || task_dumpable(task)) { + if (task_dumpable(task)) { inode->i_uid = task->euid; inode->i_gid = task->egid; } @@ -1400,7 +1400,7 @@ static int pid_revalidate(struct dentry *dentry, struct nameidata *nd) struct inode *inode = dentry->d_inode; struct task_struct *task = proc_task(inode); if (pid_alive(task)) { - if (proc_type(inode) == PROC_TGID_INO || proc_type(inode) == PROC_TID_INO || task_dumpable(task)) { + if (task_dumpable(task)) { inode->i_uid = task->euid; inode->i_gid = task->egid; } else { -- cgit v1.2.3 From aed7a6c476d90660ac5af860158407ae9fe61c68 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:44 -0700 Subject: [PATCH] proc: Replace proc_inode.type with proc_inode.fd The sole renaming use of proc_inode.type is to discover the file descriptor number, so just store the file descriptor number and don't wory about processing this field. This removes any /proc limits on the maximum number of file descriptors, and clears the path to make the hard coded /proc inode numbers go away. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 6 +++--- fs/proc/inode.c | 2 +- fs/proc/internal.h | 4 ++-- include/linux/proc_fs.h | 2 +- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index fa0e6bee40f..9562df76090 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -297,7 +297,7 @@ static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsm struct task_struct *task = proc_task(inode); struct files_struct *files; struct file *file; - int fd = proc_type(inode) - PROC_TID_FD_DIR; + int fd = proc_fd(inode); files = get_files_struct(task); if (files) { @@ -1368,7 +1368,6 @@ static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_st */ get_task_struct(task); ei->task = task; - ei->type = ino; inode->i_uid = 0; inode->i_gid = 0; if (task_dumpable(task)) { @@ -1418,7 +1417,7 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd) { struct inode *inode = dentry->d_inode; struct task_struct *task = proc_task(inode); - int fd = proc_type(inode) - PROC_TID_FD_DIR; + int fd = proc_fd(inode); struct files_struct *files; files = get_files_struct(task); @@ -1525,6 +1524,7 @@ static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, if (!inode) goto out; ei = PROC_I(inode); + ei->fd = fd; files = get_files_struct(task); if (!files) goto out_unlock; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 722b9c46311..fbc94df138a 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -95,7 +95,7 @@ static struct inode *proc_alloc_inode(struct super_block *sb) if (!ei) return NULL; ei->task = NULL; - ei->type = 0; + ei->fd = 0; ei->op.proc_get_link = NULL; ei->pde = NULL; inode = &ei->vfs_inode; diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 0502f17b860..6264b7a3a9f 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -46,7 +46,7 @@ static inline struct task_struct *proc_task(struct inode *inode) return PROC_I(inode)->task; } -static inline int proc_type(struct inode *inode) +static inline int proc_fd(struct inode *inode) { - return PROC_I(inode)->type; + return PROC_I(inode)->fd; } diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 5810d28fbed..9dd84884abb 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -249,7 +249,7 @@ extern void kclist_add(struct kcore_list *, void *, size_t); struct proc_inode { struct task_struct *task; - int type; + int fd; union { int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **); int (*proc_read)(struct task_struct *task, char *page); -- cgit v1.2.3 From 68602066c3327fa340899609d715781eda423751 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:45 -0700 Subject: [PATCH] proc: Remove bogus proc_task_permission First we can access every /proc//task/ directory as /proc/ so proc_task_permission is not usefully limiting visibility. Second having related filesystems information should have nothing to do with process visibility. kill does not implement any checks like that. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 63 ---------------------------------------------------------- 1 file changed, 63 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 9562df76090..6080672276d 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -361,54 +361,6 @@ static int proc_root_link(struct inode *inode, struct dentry **dentry, struct vf return result; } - -/* Same as proc_root_link, but this addionally tries to get fs from other - * threads in the group */ -static int proc_task_root_link(struct inode *inode, struct dentry **dentry, - struct vfsmount **mnt) -{ - struct fs_struct *fs; - int result = -ENOENT; - struct task_struct *leader = proc_task(inode); - - task_lock(leader); - fs = leader->fs; - if (fs) { - atomic_inc(&fs->count); - task_unlock(leader); - } else { - /* Try to get fs from other threads */ - task_unlock(leader); - read_lock(&tasklist_lock); - if (pid_alive(leader)) { - struct task_struct *task = leader; - - while ((task = next_thread(task)) != leader) { - task_lock(task); - fs = task->fs; - if (fs) { - atomic_inc(&fs->count); - task_unlock(task); - break; - } - task_unlock(task); - } - } - read_unlock(&tasklist_lock); - } - - if (fs) { - read_lock(&fs->lock); - *mnt = mntget(fs->rootmnt); - *dentry = dget(fs->root); - read_unlock(&fs->lock); - result = 0; - put_fs_struct(fs); - } - return result; -} - - #define MAY_PTRACE(task) \ (task == current || \ (task->parent == current && \ @@ -600,20 +552,6 @@ static int proc_permission(struct inode *inode, int mask, struct nameidata *nd) return proc_check_root(inode); } -static int proc_task_permission(struct inode *inode, int mask, struct nameidata *nd) -{ - struct dentry *root; - struct vfsmount *vfsmnt; - - if (generic_permission(inode, mask, NULL) != 0) - return -EACCES; - - if (proc_task_root_link(inode, &root, &vfsmnt)) - return -ENOENT; - - return proc_check_chroot(root, vfsmnt); -} - extern struct seq_operations proc_pid_maps_op; static int maps_open(struct inode *inode, struct file *file) { @@ -1583,7 +1521,6 @@ static struct inode_operations proc_fd_inode_operations = { static struct inode_operations proc_task_inode_operations = { .lookup = proc_task_lookup, - .permission = proc_task_permission, }; #ifdef CONFIG_SECURITY -- cgit v1.2.3 From 22c2c5d75e6ad4b9ac41269476b32ba8c9fe263f Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:45 -0700 Subject: [PATCH] proc: Kill proc_mem_inode_operations The inode operations only exist to support the proc_permission function. Currently mem_read and mem_write have all the same permission checks as ptrace. The fs check makes no sense in this context, and we can trivially get around it by calling ptrace. So simply the code by killing the strange weird case. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 6080672276d..2e4356f5d5e 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -927,10 +927,6 @@ static struct file_operations proc_oom_adjust_operations = { .write = oom_adjust_write, }; -static struct inode_operations proc_mem_inode_operations = { - .permission = proc_permission, -}; - #ifdef CONFIG_AUDITSYSCALL #define TMPBUFLEN 21 static ssize_t proc_loginuid_read(struct file * file, char __user * buf, @@ -1697,7 +1693,6 @@ static struct dentry *proc_pident_lookup(struct inode *dir, #endif case PROC_TID_MEM: case PROC_TGID_MEM: - inode->i_op = &proc_mem_inode_operations; inode->i_fop = &proc_mem_operations; break; #ifdef CONFIG_SECCOMP -- cgit v1.2.3 From 0f2fe20f55c85f26efaf14feeb69c7c2eb3f7a75 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:46 -0700 Subject: [PATCH] proc: Properly filter out files that are not visible to a process Long ago and far away in 2.2 we started checking to ensure the files we displayed in /proc were visible to the current process. It was an unsophisticated time and no one was worried about functions full of FIXMES in a stable kernel. As time passed the function became sacred and was enshrined in the shrine of how things have always been. The fixes came in but only to keep the function working no one really remembering or documenting why we did things that way. The intent and the functionality make a lot of sense. Don't let /proc be an access point for files a process can see no other way. The implementation however is completely wrong. We are currently checking the root directories of the two processes, we are not checking the actual file descriptors themselves. We are strangely checking with a permission method instead of just when we use the data. This patch fixes the logic to actually check the file descriptors and make a note that implementing a permission method for this part of /proc almost certainly indicates a bug in the reasoning. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 101 ++++++++++++++++++++++++++++++++++++++------------------- 1 file changed, 68 insertions(+), 33 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 2e4356f5d5e..a85b073408e 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -74,6 +74,16 @@ #include #include "internal.h" +/* NOTE: + * Implementing inode permission operations in /proc is almost + * certainly an error. Permission checks need to happen during + * each system call not at open time. The reason is that most of + * what we wish to check for permissions in /proc varies at runtime. + * + * The classic example of a problem is opening file descriptors + * in /proc for a task before it execs a suid executable. + */ + /* * For hysterical raisins we keep the same inumbers as in the old procfs. * Feel free to change the macro below - just keep the range distinct from @@ -494,13 +504,11 @@ static int proc_oom_score(struct task_struct *task, char *buffer) /* If the process being read is separated by chroot from the reading process, * don't let the reader access the threads. - * - * note: this does dput(root) and mntput(vfsmnt) on exit. */ -static int proc_check_chroot(struct dentry *root, struct vfsmount *vfsmnt) +static int proc_check_chroot(struct dentry *de, struct vfsmount *mnt) { - struct dentry *de, *base; - struct vfsmount *our_vfsmnt, *mnt; + struct dentry *base; + struct vfsmount *our_vfsmnt; int res = 0; read_lock(¤t->fs->lock); @@ -509,8 +517,6 @@ static int proc_check_chroot(struct dentry *root, struct vfsmount *vfsmnt) read_unlock(¤t->fs->lock); spin_lock(&vfsmount_lock); - de = root; - mnt = vfsmnt; while (mnt != our_vfsmnt) { if (mnt == mnt->mnt_parent) @@ -526,8 +532,6 @@ static int proc_check_chroot(struct dentry *root, struct vfsmount *vfsmnt) exit: dput(base); mntput(our_vfsmnt); - dput(root); - mntput(vfsmnt); return res; out: spin_unlock(&vfsmount_lock); @@ -535,23 +539,6 @@ out: goto exit; } -static int proc_check_root(struct inode *inode) -{ - struct dentry *root; - struct vfsmount *vfsmnt; - - if (proc_root_link(inode, &root, &vfsmnt)) /* Ewww... */ - return -ENOENT; - return proc_check_chroot(root, vfsmnt); -} - -static int proc_permission(struct inode *inode, int mask, struct nameidata *nd) -{ - if (generic_permission(inode, mask, NULL) != 0) - return -EACCES; - return proc_check_root(inode); -} - extern struct seq_operations proc_pid_maps_op; static int maps_open(struct inode *inode, struct file *file) { @@ -1048,6 +1035,48 @@ static struct file_operations proc_seccomp_operations = { }; #endif /* CONFIG_SECCOMP */ +static int proc_check_dentry_visible(struct inode *inode, + struct dentry *dentry, struct vfsmount *mnt) +{ + /* Verify that the current process can already see the + * file pointed at by the file descriptor. + * This prevents /proc from being an accidental information leak. + * + * This prevents access to files that are not visible do to + * being on the otherside of a chroot, in a different + * namespace, or are simply process local (like pipes). + */ + struct task_struct *task; + struct files_struct *task_files, *files; + int error = -EACCES; + + /* See if the the two tasks share a commone set of + * file descriptors. If so everything is visible. + */ + task = proc_task(inode); + if (!task) + goto out; + files = get_files_struct(current); + task_files = get_files_struct(task); + if (files && task_files && (files == task_files)) + error = 0; + if (task_files) + put_files_struct(task_files); + if (files) + put_files_struct(files); + if (!error) + goto out; + + /* If the two tasks don't share a common set of file + * descriptors see if the destination dentry is already + * visible in the current tasks filesystem namespace. + */ + error = proc_check_chroot(dentry, mnt); +out: + return error; + +} + static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) { struct inode *inode = dentry->d_inode; @@ -1058,12 +1087,16 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) if (current->fsuid != inode->i_uid && !capable(CAP_DAC_OVERRIDE)) goto out; - error = proc_check_root(inode); - if (error) - goto out; error = PROC_I(inode)->op.proc_get_link(inode, &nd->dentry, &nd->mnt); nd->last_type = LAST_BIND; + if (error) + goto out; + + /* Only return files this task can already see */ + error = proc_check_dentry_visible(inode, nd->dentry, nd->mnt); + if (error) + path_release(nd); out: return ERR_PTR(error); } @@ -1104,15 +1137,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b if (current->fsuid != inode->i_uid && !capable(CAP_DAC_OVERRIDE)) goto out; - error = proc_check_root(inode); - if (error) - goto out; error = PROC_I(inode)->op.proc_get_link(inode, &de, &mnt); if (error) goto out; + /* Only return files this task can already see */ + error = proc_check_dentry_visible(inode, de, mnt); + if (error) + goto out_put; + error = do_proc_readlink(de, mnt, buffer, buflen); +out_put: dput(de); mntput(mnt); out: @@ -1512,7 +1548,6 @@ static struct file_operations proc_task_operations = { */ static struct inode_operations proc_fd_inode_operations = { .lookup = proc_lookupfd, - .permission = proc_permission, }; static struct inode_operations proc_task_inode_operations = { -- cgit v1.2.3 From 6e66b52bf587f0dd9a8e0a581b9570e5c1969e33 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:47 -0700 Subject: [PATCH] proc: Fix the link count for /proc//task Use getattr to get an accurate link count when needed. This is cheaper and more accurate than trying to derive it by walking the thread list of a process. Especially as it happens when needed stat instead of at readdir time. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index a85b073408e..29539c2268a 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1532,6 +1532,7 @@ out: static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldir); static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd); +static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); static struct file_operations proc_fd_operations = { .read = generic_read_dir, @@ -1552,6 +1553,7 @@ static struct inode_operations proc_fd_inode_operations = { static struct inode_operations proc_task_inode_operations = { .lookup = proc_task_lookup, + .getattr = proc_task_getattr, }; #ifdef CONFIG_SECURITY @@ -1658,7 +1660,7 @@ static struct dentry *proc_pident_lookup(struct inode *dir, */ switch(p->type) { case PROC_TGID_TASK: - inode->i_nlink = 2 + get_tid_list(2, NULL, dir); + inode->i_nlink = 2; inode->i_op = &proc_task_inode_operations; inode->i_fop = &proc_task_operations; break; @@ -2261,7 +2263,6 @@ static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldi } nr_tids = get_tid_list(pos, tid_array, inode); - inode->i_nlink = pos + nr_tids; for (i = 0; i < nr_tids; i++) { unsigned long j = PROC_NUMBUF; @@ -2281,3 +2282,19 @@ out: filp->f_pos = pos; return retval; } + +static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +{ + struct inode *inode = dentry->d_inode; + struct task_struct *p = proc_task(inode); + generic_fillattr(inode, stat); + + if (pid_alive(p)) { + task_lock(p); + if (p->signal) + stat->nlink += atomic_read(&p->signal->count); + task_unlock(p); + } + + return 0; +} -- cgit v1.2.3 From 662795deb854b31501e0ffb42b7f0cce802c134a Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:48 -0700 Subject: [PATCH] proc: Move proc_maps_operations into task_mmu.c All of the functions for proc_maps_operations are already defined in task_mmu.c so move the operations structure to keep the functionality together. Since task_nommu.c implements a dummy version of /proc//maps give it a simplified version of proc_maps_operations that it can modify to best suit its needs. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 61 ---------------------------------------------------- fs/proc/internal.h | 4 ++++ fs/proc/task_mmu.c | 54 +++++++++++++++++++++++++++++++++++++++++++--- fs/proc/task_nommu.c | 21 +++++++++++++++++- 4 files changed, 75 insertions(+), 65 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 29539c2268a..c8636841bbc 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -539,67 +539,6 @@ out: goto exit; } -extern struct seq_operations proc_pid_maps_op; -static int maps_open(struct inode *inode, struct file *file) -{ - struct task_struct *task = proc_task(inode); - int ret = seq_open(file, &proc_pid_maps_op); - if (!ret) { - struct seq_file *m = file->private_data; - m->private = task; - } - return ret; -} - -static struct file_operations proc_maps_operations = { - .open = maps_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -#ifdef CONFIG_NUMA -extern struct seq_operations proc_pid_numa_maps_op; -static int numa_maps_open(struct inode *inode, struct file *file) -{ - struct task_struct *task = proc_task(inode); - int ret = seq_open(file, &proc_pid_numa_maps_op); - if (!ret) { - struct seq_file *m = file->private_data; - m->private = task; - } - return ret; -} - -static struct file_operations proc_numa_maps_operations = { - .open = numa_maps_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; -#endif - -#ifdef CONFIG_MMU -extern struct seq_operations proc_pid_smaps_op; -static int smaps_open(struct inode *inode, struct file *file) -{ - struct task_struct *task = proc_task(inode); - int ret = seq_open(file, &proc_pid_smaps_op); - if (!ret) { - struct seq_file *m = file->private_data; - m->private = task; - } - return ret; -} - -static struct file_operations proc_smaps_operations = { - .open = smaps_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; -#endif - extern struct seq_operations mounts_op; struct proc_mounts { struct seq_file m; diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 6264b7a3a9f..548e7447ea4 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -37,6 +37,10 @@ extern int proc_tgid_stat(struct task_struct *, char *); extern int proc_pid_status(struct task_struct *, char *); extern int proc_pid_statm(struct task_struct *, char *); +extern struct file_operations proc_maps_operations; +extern struct file_operations proc_numa_maps_operations; +extern struct file_operations proc_smaps_operations; + void free_proc_entry(struct proc_dir_entry *de); int proc_init_inodecache(void); diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 91b7c15ab37..4187b4e9cdb 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -374,27 +374,75 @@ static void *m_next(struct seq_file *m, void *v, loff_t *pos) return (vma != tail_vma)? tail_vma: NULL; } -struct seq_operations proc_pid_maps_op = { +static struct seq_operations proc_pid_maps_op = { .start = m_start, .next = m_next, .stop = m_stop, .show = show_map }; -struct seq_operations proc_pid_smaps_op = { +static struct seq_operations proc_pid_smaps_op = { .start = m_start, .next = m_next, .stop = m_stop, .show = show_smap }; +static int do_maps_open(struct inode *inode, struct file *file, + struct seq_operations *ops) +{ + struct task_struct *task = proc_task(inode); + int ret = seq_open(file, ops); + if (!ret) { + struct seq_file *m = file->private_data; + m->private = task; + } + return ret; +} + +static int maps_open(struct inode *inode, struct file *file) +{ + return do_maps_open(inode, file, &proc_pid_maps_op); +} + +struct file_operations proc_maps_operations = { + .open = maps_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + #ifdef CONFIG_NUMA extern int show_numa_map(struct seq_file *m, void *v); -struct seq_operations proc_pid_numa_maps_op = { +static struct seq_operations proc_pid_numa_maps_op = { .start = m_start, .next = m_next, .stop = m_stop, .show = show_numa_map }; + +static int numa_maps_open(struct inode *inode, struct file *file) +{ + return do_maps_open(inode, file, &proc_pid_numa_maps_op); +} + +struct file_operations proc_numa_maps_operations = { + .open = numa_maps_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; #endif + +static int smaps_open(struct inode *inode, struct file *file) +{ + return do_maps_open(inode, file, &proc_pid_smaps_op); +} + +struct file_operations proc_smaps_operations = { + .open = smaps_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c index 8f68827ed10..af69f28277b 100644 --- a/fs/proc/task_nommu.c +++ b/fs/proc/task_nommu.c @@ -156,9 +156,28 @@ static void *m_next(struct seq_file *m, void *v, loff_t *pos) { return NULL; } -struct seq_operations proc_pid_maps_op = { +static struct seq_operations proc_pid_maps_op = { .start = m_start, .next = m_next, .stop = m_stop, .show = show_map }; + +static int maps_open(struct inode *inode, struct file *file) +{ + int ret; + ret = seq_open(file, &proc_pid_maps_op); + if (!ret) { + struct seq_file *m = file->private_data; + m->private = NULL; + } + return ret; +} + +struct file_operations proc_maps_operations = { + .open = maps_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + -- cgit v1.2.3 From 48e6484d49020dba3578ad117b461e8a391e8f0f Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:48 -0700 Subject: [PATCH] proc: Rewrite the proc dentry flush on exit optimization To keep the dcache from filling up with dead /proc entries we flush them on process exit. However over the years that code has gotten hairy with a dentry_pointer and a lock in task_struct and misdocumented as a correctness feature. I have rewritten this code to look and see if we have a corresponding entry in the dcache and if so flush it on process exit. This removes the extra fields in the task_struct and allows me to trivially handle the case of a /proc//task/ entry as well as the current /proc/ entries. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 10 ---- fs/proc/base.c | 134 +++++++++++++++++++++------------------------- include/linux/init_task.h | 1 - include/linux/proc_fs.h | 6 +-- include/linux/sched.h | 3 -- kernel/exit.c | 7 +-- kernel/fork.c | 3 -- 7 files changed, 64 insertions(+), 100 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index 0b88bf64614..8c5196087f3 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -666,8 +666,6 @@ static int de_thread(struct task_struct *tsk) * and to assume its PID: */ if (!thread_group_leader(current)) { - struct dentry *proc_dentry1, *proc_dentry2; - /* * Wait for the thread group leader to be a zombie. * It should already be zombie at this point, most @@ -689,10 +687,6 @@ static int de_thread(struct task_struct *tsk) */ current->start_time = leader->start_time; - spin_lock(&leader->proc_lock); - spin_lock(¤t->proc_lock); - proc_dentry1 = proc_pid_unhash(current); - proc_dentry2 = proc_pid_unhash(leader); write_lock_irq(&tasklist_lock); BUG_ON(leader->tgid != current->tgid); @@ -729,10 +723,6 @@ static int de_thread(struct task_struct *tsk) leader->exit_state = EXIT_DEAD; write_unlock_irq(&tasklist_lock); - spin_unlock(&leader->proc_lock); - spin_unlock(¤t->proc_lock); - proc_pid_flush(proc_dentry1); - proc_pid_flush(proc_dentry2); } /* diff --git a/fs/proc/base.c b/fs/proc/base.c index c8636841bbc..f435932e643 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1352,16 +1352,6 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd) return 0; } -static void pid_base_iput(struct dentry *dentry, struct inode *inode) -{ - struct task_struct *task = proc_task(inode); - spin_lock(&task->proc_lock); - if (task->proc_dentry == dentry) - task->proc_dentry = NULL; - spin_unlock(&task->proc_lock); - iput(inode); -} - static int pid_delete_dentry(struct dentry * dentry) { /* Is the task we represent dead? @@ -1383,13 +1373,6 @@ static struct dentry_operations pid_dentry_operations = .d_delete = pid_delete_dentry, }; -static struct dentry_operations pid_base_dentry_operations = -{ - .d_revalidate = pid_revalidate, - .d_iput = pid_base_iput, - .d_delete = pid_delete_dentry, -}; - /* Lookups */ static unsigned name_to_int(struct dentry *dentry) @@ -1859,57 +1842,70 @@ static struct inode_operations proc_self_inode_operations = { }; /** - * proc_pid_unhash - Unhash /proc/@pid entry from the dcache. - * @p: task that should be flushed. + * proc_flush_task - Remove dcache entries for @task from the /proc dcache. + * + * @task: task that should be flushed. + * + * Looks in the dcache for + * /proc/@pid + * /proc/@tgid/task/@pid + * if either directory is present flushes it and all of it'ts children + * from the dcache. * - * Drops the /proc/@pid dcache entry from the hash chains. + * It is safe and reasonable to cache /proc entries for a task until + * that task exits. After that they just clog up the dcache with + * useless entries, possibly causing useful dcache entries to be + * flushed instead. This routine is proved to flush those useless + * dcache entries at process exit time. * - * Dropping /proc/@pid entries and detach_pid must be synchroneous, - * otherwise e.g. /proc/@pid/exe might point to the wrong executable, - * if the pid value is immediately reused. This is enforced by - * - caller must acquire spin_lock(p->proc_lock) - * - must be called before detach_pid() - * - proc_pid_lookup acquires proc_lock, and checks that - * the target is not dead by looking at the attach count - * of PIDTYPE_PID. + * NOTE: This routine is just an optimization so it does not guarantee + * that no dcache entries will exist at process exit time it + * just makes it very unlikely that any will persist. */ - -struct dentry *proc_pid_unhash(struct task_struct *p) +void proc_flush_task(struct task_struct *task) { - struct dentry *proc_dentry; + struct dentry *dentry, *leader, *dir; + char buf[30]; + struct qstr name; + + name.name = buf; + name.len = snprintf(buf, sizeof(buf), "%d", task->pid); + dentry = d_hash_and_lookup(proc_mnt->mnt_root, &name); + if (dentry) { + shrink_dcache_parent(dentry); + d_drop(dentry); + dput(dentry); + } - proc_dentry = p->proc_dentry; - if (proc_dentry != NULL) { + if (thread_group_leader(task)) + goto out; - spin_lock(&dcache_lock); - spin_lock(&proc_dentry->d_lock); - if (!d_unhashed(proc_dentry)) { - dget_locked(proc_dentry); - __d_drop(proc_dentry); - spin_unlock(&proc_dentry->d_lock); - } else { - spin_unlock(&proc_dentry->d_lock); - proc_dentry = NULL; - } - spin_unlock(&dcache_lock); - } - return proc_dentry; -} + name.name = buf; + name.len = snprintf(buf, sizeof(buf), "%d", task->tgid); + leader = d_hash_and_lookup(proc_mnt->mnt_root, &name); + if (!leader) + goto out; -/** - * proc_pid_flush - recover memory used by stale /proc/@pid/x entries - * @proc_dentry: directoy to prune. - * - * Shrink the /proc directory that was used by the just killed thread. - */ - -void proc_pid_flush(struct dentry *proc_dentry) -{ - might_sleep(); - if(proc_dentry != NULL) { - shrink_dcache_parent(proc_dentry); - dput(proc_dentry); + name.name = "task"; + name.len = strlen(name.name); + dir = d_hash_and_lookup(leader, &name); + if (!dir) + goto out_put_leader; + + name.name = buf; + name.len = snprintf(buf, sizeof(buf), "%d", task->pid); + dentry = d_hash_and_lookup(dir, &name); + if (dentry) { + shrink_dcache_parent(dentry); + d_drop(dentry); + dput(dentry); } + + dput(dir); +out_put_leader: + dput(leader); +out: + return; } /* SMP-safe */ @@ -1919,7 +1915,6 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct struct inode *inode; struct proc_inode *ei; unsigned tgid; - int died; if (dentry->d_name.len == 4 && !memcmp(dentry->d_name.name,"self",4)) { inode = new_inode(dir->i_sb); @@ -1965,23 +1960,16 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct inode->i_nlink = 4; #endif - dentry->d_op = &pid_base_dentry_operations; + dentry->d_op = &pid_dentry_operations; - died = 0; d_add(dentry, inode); - spin_lock(&task->proc_lock); - task->proc_dentry = dentry; if (!pid_alive(task)) { - dentry = proc_pid_unhash(task); - died = 1; + d_drop(dentry); + shrink_dcache_parent(dentry); + goto out; } - spin_unlock(&task->proc_lock); put_task_struct(task); - if (died) { - proc_pid_flush(dentry); - goto out; - } return NULL; out: return ERR_PTR(-ENOENT); @@ -2024,7 +2012,7 @@ static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry inode->i_nlink = 3; #endif - dentry->d_op = &pid_base_dentry_operations; + dentry->d_op = &pid_dentry_operations; d_add(dentry, inode); diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 41ecbb847f3..e127ef7e8da 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -119,7 +119,6 @@ extern struct group_info init_groups; .signal = {{0}}}, \ .blocked = {{0}}, \ .alloc_lock = SPIN_LOCK_UNLOCKED, \ - .proc_lock = SPIN_LOCK_UNLOCKED, \ .journal_info = NULL, \ .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ .fs_excl = ATOMIC_INIT(0), \ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 9dd84884abb..d4d2081dbaf 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -99,9 +99,8 @@ extern void proc_misc_init(void); struct mm_struct; +void proc_flush_task(struct task_struct *task); struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *); -struct dentry *proc_pid_unhash(struct task_struct *p); -void proc_pid_flush(struct dentry *proc_dentry); int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir); unsigned long task_vsize(struct mm_struct *); int task_statm(struct mm_struct *, int *, int *, int *, int *); @@ -211,8 +210,7 @@ static inline void proc_net_remove(const char *name) #define proc_net_create(name, mode, info) ({ (void)(mode), NULL; }) static inline void proc_net_remove(const char *name) {} -static inline struct dentry *proc_pid_unhash(struct task_struct *p) { return NULL; } -static inline void proc_pid_flush(struct dentry *proc_dentry) { } +static inline void proc_flush_task(struct task_struct *task) { } static inline struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode, struct proc_dir_entry *parent) { return NULL; } diff --git a/include/linux/sched.h b/include/linux/sched.h index 8d11d9310db..122a25c1b99 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -842,8 +842,6 @@ struct task_struct { u32 self_exec_id; /* Protection of (de-)allocation: mm, files, fs, tty, keyrings */ spinlock_t alloc_lock; -/* Protection of proc_dentry: nesting proc_lock, dcache_lock, write_lock_irq(&tasklist_lock); */ - spinlock_t proc_lock; #ifdef CONFIG_DEBUG_MUTEXES /* mutex deadlock detection */ @@ -856,7 +854,6 @@ struct task_struct { /* VM state */ struct reclaim_state *reclaim_state; - struct dentry *proc_dentry; struct backing_dev_info *backing_dev_info; struct io_context *io_context; diff --git a/kernel/exit.c b/kernel/exit.c index e76bd02e930..304ef637be6 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -137,12 +137,8 @@ void release_task(struct task_struct * p) { int zap_leader; task_t *leader; - struct dentry *proc_dentry; - repeat: atomic_dec(&p->user->processes); - spin_lock(&p->proc_lock); - proc_dentry = proc_pid_unhash(p); write_lock_irq(&tasklist_lock); ptrace_unlink(p); BUG_ON(!list_empty(&p->ptrace_list) || !list_empty(&p->ptrace_children)); @@ -171,8 +167,7 @@ repeat: sched_exit(p); write_unlock_irq(&tasklist_lock); - spin_unlock(&p->proc_lock); - proc_pid_flush(proc_dentry); + proc_flush_task(p); release_thread(p); call_rcu(&p->rcu, delayed_put_task_struct); diff --git a/kernel/fork.c b/kernel/fork.c index dfd10cb370c..79e91046f36 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -993,13 +993,10 @@ static task_t *copy_process(unsigned long clone_flags, if (put_user(p->pid, parent_tidptr)) goto bad_fork_cleanup; - p->proc_dentry = NULL; - INIT_LIST_HEAD(&p->children); INIT_LIST_HEAD(&p->sibling); p->vfork_done = NULL; spin_lock_init(&p->alloc_lock); - spin_lock_init(&p->proc_lock); clear_tsk_thread_flag(p, TIF_SIGPENDING); init_sigpending(&p->pending); -- cgit v1.2.3 From cd6a3ce9ec040c0b56ea92a81ff710417798c559 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:49 -0700 Subject: [PATCH] proc: Close the race of a process dying durning lookup proc_lookup and task exiting are not synchronized, although some of the previous code may have suggested that. Every time before we reuse a dentry namei.c calls d_op->derevalidate which prevents us from reusing a stale dcache entry. Unfortunately it does not prevent us from returning a stale dcache entry. This race has been explicitly plugged in proc_pid_lookup but there is nothing to confine it to just that proc lookup function. So to prevent the race I call revalidate explictily in all of the proc lookup functions after I call d_add, and report an error if the revalidate does not succeed. Years ago Al Viro did something similar but those changes got lost in the churn. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 54 +++++++++++++++++++++++++++++------------------------- 1 file changed, 29 insertions(+), 25 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index f435932e643..98eaeaa9fdd 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1402,6 +1402,7 @@ static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, { struct task_struct *task = proc_task(dir); unsigned fd = name_to_int(dentry); + struct dentry *result = ERR_PTR(-ENOENT); struct file * file; struct files_struct * files; struct inode *inode; @@ -1441,15 +1442,18 @@ static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, ei->op.proc_get_link = proc_fd_link; dentry->d_op = &tid_fd_dentry_operations; d_add(dentry, inode); - return NULL; + /* Close the race of the process dying before we return the dentry */ + if (tid_fd_revalidate(dentry, NULL)) + result = NULL; +out: + return result; out_unlock2: spin_unlock(&files->file_lock); put_files_struct(files); out_unlock: iput(inode); -out: - return ERR_PTR(-ENOENT); + goto out; } static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldir); @@ -1549,12 +1553,12 @@ static struct dentry *proc_pident_lookup(struct inode *dir, struct pid_entry *ents) { struct inode *inode; - int error; + struct dentry *error; struct task_struct *task = proc_task(dir); struct pid_entry *p; struct proc_inode *ei; - error = -ENOENT; + error = ERR_PTR(-ENOENT); inode = NULL; if (!pid_alive(task)) @@ -1569,7 +1573,7 @@ static struct dentry *proc_pident_lookup(struct inode *dir, if (!p->name) goto out; - error = -EINVAL; + error = ERR_PTR(-EINVAL); inode = proc_pid_make_inode(dir->i_sb, task, p->type); if (!inode) goto out; @@ -1736,14 +1740,16 @@ static struct dentry *proc_pident_lookup(struct inode *dir, default: printk("procfs: impossible type (%d)",p->type); iput(inode); - return ERR_PTR(-EINVAL); + error = ERR_PTR(-EINVAL); + goto out; } dentry->d_op = &pid_dentry_operations; d_add(dentry, inode); - return NULL; - + /* Close the race of the process dying before we return the dentry */ + if (pid_revalidate(dentry, NULL)) + error = NULL; out: - return ERR_PTR(error); + return error; } static struct dentry *proc_tgid_base_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd){ @@ -1911,6 +1917,7 @@ out: /* SMP-safe */ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd) { + struct dentry *result = ERR_PTR(-ENOENT); struct task_struct *task; struct inode *inode; struct proc_inode *ei; @@ -1944,12 +1951,9 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct goto out; inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO); + if (!inode) + goto out_put_task; - - if (!inode) { - put_task_struct(task); - goto out; - } inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; inode->i_op = &proc_tgid_base_inode_operations; inode->i_fop = &proc_tgid_base_operations; @@ -1963,21 +1967,20 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct dentry->d_op = &pid_dentry_operations; d_add(dentry, inode); - if (!pid_alive(task)) { - d_drop(dentry); - shrink_dcache_parent(dentry); - goto out; - } + /* Close the race of the process dying before we return the dentry */ + if (pid_revalidate(dentry, NULL)) + result = NULL; +out_put_task: put_task_struct(task); - return NULL; out: - return ERR_PTR(-ENOENT); + return result; } /* SMP-safe */ static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd) { + struct dentry *result = ERR_PTR(-ENOENT); struct task_struct *task; struct task_struct *leader = proc_task(dir); struct inode *inode; @@ -2015,13 +2018,14 @@ static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry dentry->d_op = &pid_dentry_operations; d_add(dentry, inode); + /* Close the race of the process dying before we return the dentry */ + if (pid_revalidate(dentry, NULL)) + result = NULL; - put_task_struct(task); - return NULL; out_drop_task: put_task_struct(task); out: - return ERR_PTR(-ENOENT); + return result; } #define PROC_NUMBUF 10 -- cgit v1.2.3 From 0bc58a910220be3446eedc8e77fd45c0a16d8f25 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:50 -0700 Subject: [PATCH] proc: refactor reading directories of tasks There are a couple of problems this patch addresses. - /proc//task currently does not work correctly if you stop reading in the middle of a directory. - /proc/ currently requires a full pass through the task list with the tasklist lock held, to determine there are no more processes to read. - The hand rolled integer to string conversion does not properly running out of buffer space. - We seem to be batching reading of pids from the tasklist without reason, and complicating the logic of the code. This patch addresses that by changing how tasks are processed. A first_ function is built that handles restarts, and a next_ function is built that just advances to the next task. first_ when it detects a restart usually uses find_task_by_pid. If that doesn't work because there has been a seek on the directory, or we have already given a complete directory listing, it first checks the number tasks of that type, and only if we are under that count does it walk through all of the tasks to find the one we are interested in. The code that fills in the directory is simpler because there is only a single for loop. The hand rolled integer to string conversion is replaced by snprintf which should handle the the out of buffer case correctly. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 268 +++++++++++++++++++++++++++++++++++---------------------- 1 file changed, 163 insertions(+), 105 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 98eaeaa9fdd..2236f7d3878 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1545,8 +1545,6 @@ static struct file_operations proc_tgid_attr_operations; static struct inode_operations proc_tgid_attr_inode_operations; #endif -static int get_tid_list(int index, unsigned int *tids, struct inode *dir); - /* SMP-safe */ static struct dentry *proc_pident_lookup(struct inode *dir, struct dentry *dentry, @@ -2029,88 +2027,83 @@ out: } #define PROC_NUMBUF 10 -#define PROC_MAXPIDS 20 /* - * Get a few tgid's to return for filldir - we need to hold the - * tasklist lock while doing this, and we must release it before - * we actually do the filldir itself, so we use a temp buffer.. + * Find the first tgid to return to user space. + * + * Usually this is just whatever follows &init_task, but if the users + * buffer was too small to hold the full list or there was a seek into + * the middle of the directory we have more work to do. + * + * In the case of a short read we start with find_task_by_pid. + * + * In the case of a seek we start with &init_task and walk nr + * threads past it. */ -static int get_tgid_list(int index, unsigned long version, unsigned int *tgids) +static struct task_struct *first_tgid(int tgid, int nr) { - struct task_struct *p; - int nr_tgids = 0; - - index--; + struct task_struct *pos = NULL; read_lock(&tasklist_lock); - p = NULL; - if (version) { - p = find_task_by_pid(version); - if (p && !thread_group_leader(p)) - p = NULL; + if (tgid && nr) { + pos = find_task_by_pid(tgid); + if (pos && !thread_group_leader(pos)) + pos = NULL; + if (pos) + nr = 0; } + /* If nr exceeds the number of processes get out quickly */ + if (nr && nr >= nr_processes()) + goto done; - if (p) - index = 0; - else - p = next_task(&init_task); + /* If we haven't found our starting place yet start with + * the init_task and walk nr tasks forward. + */ + if (!pos && (nr >= 0)) + pos = next_task(&init_task); - for ( ; p != &init_task; p = next_task(p)) { - int tgid = p->pid; - if (!pid_alive(p)) - continue; - if (--index >= 0) + for (; pos && pid_alive(pos); pos = next_task(pos)) { + if (--nr > 0) continue; - tgids[nr_tgids] = tgid; - nr_tgids++; - if (nr_tgids >= PROC_MAXPIDS) - break; + get_task_struct(pos); + goto done; } + pos = NULL; +done: read_unlock(&tasklist_lock); - return nr_tgids; + return pos; } /* - * Get a few tid's to return for filldir - we need to hold the - * tasklist lock while doing this, and we must release it before - * we actually do the filldir itself, so we use a temp buffer.. + * Find the next task in the task list. + * Return NULL if we loop or there is any error. + * + * The reference to the input task_struct is released. */ -static int get_tid_list(int index, unsigned int *tids, struct inode *dir) +static struct task_struct *next_tgid(struct task_struct *start) { - struct task_struct *leader_task = proc_task(dir); - struct task_struct *task = leader_task; - int nr_tids = 0; - - index -= 2; + struct task_struct *pos; read_lock(&tasklist_lock); - /* - * The starting point task (leader_task) might be an already - * unlinked task, which cannot be used to access the task-list - * via next_thread(). - */ - if (pid_alive(task)) do { - int tid = task->pid; - - if (--index >= 0) - continue; - if (tids != NULL) - tids[nr_tids] = tid; - nr_tids++; - if (nr_tids >= PROC_MAXPIDS) - break; - } while ((task = next_thread(task)) != leader_task); + pos = start; + if (pid_alive(start)) + pos = next_task(start); + if (pid_alive(pos) && (pos != &init_task)) { + get_task_struct(pos); + goto done; + } + pos = NULL; +done: read_unlock(&tasklist_lock); - return nr_tids; + put_task_struct(start); + return pos; } /* for the /proc/ directory itself, after non-process stuff has been done */ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir) { - unsigned int tgid_array[PROC_MAXPIDS]; char buf[PROC_NUMBUF]; unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY; - unsigned int nr_tgids, i; - int next_tgid; + struct task_struct *task; + int tgid; if (!nr) { ino_t ino = fake_ino(0,PROC_TGID_INO); @@ -2119,62 +2112,123 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir) filp->f_pos++; nr++; } + nr -= 1; /* f_version caches the tgid value that the last readdir call couldn't * return. lseek aka telldir automagically resets f_version to 0. */ - next_tgid = filp->f_version; + tgid = filp->f_version; filp->f_version = 0; - for (;;) { - nr_tgids = get_tgid_list(nr, next_tgid, tgid_array); - if (!nr_tgids) { - /* no more entries ! */ + for (task = first_tgid(tgid, nr); + task; + task = next_tgid(task), filp->f_pos++) { + int len; + ino_t ino; + tgid = task->pid; + len = snprintf(buf, sizeof(buf), "%d", tgid); + ino = fake_ino(tgid, PROC_TGID_INO); + if (filldir(dirent, buf, len, filp->f_pos, ino, DT_DIR) < 0) { + /* returning this tgid failed, save it as the first + * pid for the next readir call */ + filp->f_version = tgid; + put_task_struct(task); break; } - next_tgid = 0; + } + return 0; +} - /* do not use the last found pid, reserve it for next_tgid */ - if (nr_tgids == PROC_MAXPIDS) { - nr_tgids--; - next_tgid = tgid_array[nr_tgids]; - } +/* + * Find the first tid of a thread group to return to user space. + * + * Usually this is just the thread group leader, but if the users + * buffer was too small or there was a seek into the middle of the + * directory we have more work todo. + * + * In the case of a short read we start with find_task_by_pid. + * + * In the case of a seek we start with the leader and walk nr + * threads past it. + */ +static struct task_struct *first_tid(struct task_struct *leader, int tid, int nr) +{ + struct task_struct *pos = NULL; + read_lock(&tasklist_lock); - for (i=0;i 0)) { + pos = find_task_by_pid(tid); + if (pos && (pos->group_leader != leader)) + pos = NULL; + if (pos) + nr = 0; + } - do - buf[--j] = '0' + (tgid % 10); - while ((tgid /= 10) != 0); + /* If nr exceeds the number of threads there is nothing todo */ + if (nr) { + int threads = 0; + task_lock(leader); + if (leader->signal) + threads = atomic_read(&leader->signal->count); + task_unlock(leader); + if (nr >= threads) + goto done; + } - if (filldir(dirent, buf+j, PROC_NUMBUF-j, filp->f_pos, ino, DT_DIR) < 0) { - /* returning this tgid failed, save it as the first - * pid for the next readir call */ - filp->f_version = tgid_array[i]; - goto out; - } - filp->f_pos++; - nr++; - } + /* If we haven't found our starting place yet start with the + * leader and walk nr threads forward. + */ + if (!pos && (nr >= 0)) + pos = leader; + + for (; pos && pid_alive(pos); pos = next_thread(pos)) { + if (--nr > 0) + continue; + get_task_struct(pos); + goto done; } -out: - return 0; + pos = NULL; +done: + read_unlock(&tasklist_lock); + return pos; +} + +/* + * Find the next thread in the thread list. + * Return NULL if there is an error or no next thread. + * + * The reference to the input task_struct is released. + */ +static struct task_struct *next_tid(struct task_struct *start) +{ + struct task_struct *pos; + read_lock(&tasklist_lock); + pos = start; + if (pid_alive(start)) + pos = next_thread(start); + if (pid_alive(pos) && (pos != start->group_leader)) + get_task_struct(pos); + else + pos = NULL; + read_unlock(&tasklist_lock); + put_task_struct(start); + return pos; } /* for the /proc/TGID/task/ directories */ static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldir) { - unsigned int tid_array[PROC_MAXPIDS]; char buf[PROC_NUMBUF]; - unsigned int nr_tids, i; struct dentry *dentry = filp->f_dentry; struct inode *inode = dentry->d_inode; + struct task_struct *leader = proc_task(inode); + struct task_struct *task; int retval = -ENOENT; ino_t ino; + int tid; unsigned long pos = filp->f_pos; /* avoiding "long long" filp->f_pos */ - if (!pid_alive(proc_task(inode))) + if (!pid_alive(leader)) goto out; retval = 0; @@ -2193,21 +2247,25 @@ static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldi /* fall through */ } - nr_tids = get_tid_list(pos, tid_array, inode); - - for (i = 0; i < nr_tids; i++) { - unsigned long j = PROC_NUMBUF; - int tid = tid_array[i]; - - ino = fake_ino(tid,PROC_TID_INO); - - do - buf[--j] = '0' + (tid % 10); - while ((tid /= 10) != 0); - - if (filldir(dirent, buf+j, PROC_NUMBUF-j, pos, ino, DT_DIR) < 0) + /* f_version caches the tgid value that the last readdir call couldn't + * return. lseek aka telldir automagically resets f_version to 0. + */ + tid = filp->f_version; + filp->f_version = 0; + for (task = first_tid(leader, tid, pos - 2); + task; + task = next_tid(task), pos++) { + int len; + tid = task->pid; + len = snprintf(buf, sizeof(buf), "%d", tid); + ino = fake_ino(tid, PROC_TID_INO); + if (filldir(dirent, buf, len, pos, ino, DT_DIR < 0)) { + /* returning this tgid failed, save it as the first + * pid for the next readir call */ + filp->f_version = tid; + put_task_struct(task); break; - pos++; + } } out: filp->f_pos = pos; -- cgit v1.2.3 From 454cc105ef690f2a0ba7c6b194d55666b4e918ce Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:51 -0700 Subject: [PATCH] proc: Remove tasklist_lock from proc_pid_readdir We don't need the tasklist_lock to safely iterate through processes anymore. This depends on my previous to task patches that make get_task_struct rcu safe, and that make next_task() rcu safe. I haven't gotten first_tid/next_tid yet only because next_thread is missing an rcu_dereference. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 2236f7d3878..cc578a300a2 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2043,7 +2043,7 @@ out: static struct task_struct *first_tgid(int tgid, int nr) { struct task_struct *pos = NULL; - read_lock(&tasklist_lock); + rcu_read_lock(); if (tgid && nr) { pos = find_task_by_pid(tgid); if (pos && !thread_group_leader(pos)) @@ -2069,7 +2069,7 @@ static struct task_struct *first_tgid(int tgid, int nr) } pos = NULL; done: - read_unlock(&tasklist_lock); + rcu_read_unlock(); return pos; } @@ -2082,7 +2082,7 @@ done: static struct task_struct *next_tgid(struct task_struct *start) { struct task_struct *pos; - read_lock(&tasklist_lock); + rcu_read_lock(); pos = start; if (pid_alive(start)) pos = next_task(start); @@ -2092,7 +2092,7 @@ static struct task_struct *next_tgid(struct task_struct *start) } pos = NULL; done: - read_unlock(&tasklist_lock); + rcu_read_unlock(); put_task_struct(start); return pos; } -- cgit v1.2.3 From de7587343bfebc186995ad294e3de0da382eb9bc Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:51 -0700 Subject: [PATCH] proc: Remove tasklist_lock from proc_pid_lookup() and proc_task_lookup() Since we no longer need the tasklist_lock for get_task_struct the lookup methods no longer need the tasklist_lock. This just depends on my previous patch that makes get_task_struct() rcu safe. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index cc578a300a2..8180579f879 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1940,11 +1940,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct if (tgid == ~0U) goto out; - read_lock(&tasklist_lock); + rcu_read_lock(); task = find_task_by_pid(tgid); if (task) get_task_struct(task); - read_unlock(&tasklist_lock); + rcu_read_unlock(); if (!task) goto out; @@ -1988,11 +1988,11 @@ static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry if (tid == ~0U) goto out; - read_lock(&tasklist_lock); + rcu_read_lock(); task = find_task_by_pid(tid); if (task) get_task_struct(task); - read_unlock(&tasklist_lock); + rcu_read_unlock(); if (!task) goto out; if (leader->tgid != task->tgid) -- cgit v1.2.3 From 9cc8cbc7f8b7bc3db48bf6d59a731af728e786ce Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:52 -0700 Subject: [PATCH] simply fix first_tgid Like the bug Oleg spotted in first_tid there was also a small off by one error in first_tgid, when a seek was done on the /proc directory. This fixes that and changes the code structure to make it a little more obvious what is going on. Signed-off-by: Eric W. Biederman Cc: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 8180579f879..bbcaef9adb5 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2040,34 +2040,32 @@ out: * In the case of a seek we start with &init_task and walk nr * threads past it. */ -static struct task_struct *first_tgid(int tgid, int nr) +static struct task_struct *first_tgid(int tgid, unsigned int nr) { - struct task_struct *pos = NULL; + struct task_struct *pos; rcu_read_lock(); if (tgid && nr) { pos = find_task_by_pid(tgid); - if (pos && !thread_group_leader(pos)) - pos = NULL; - if (pos) - nr = 0; + if (pos && thread_group_leader(pos)) + goto found; } /* If nr exceeds the number of processes get out quickly */ + pos = NULL; if (nr && nr >= nr_processes()) goto done; /* If we haven't found our starting place yet start with * the init_task and walk nr tasks forward. */ - if (!pos && (nr >= 0)) - pos = next_task(&init_task); - - for (; pos && pid_alive(pos); pos = next_task(pos)) { - if (--nr > 0) - continue; - get_task_struct(pos); - goto done; + for (pos = next_task(&init_task); nr > 0; --nr) { + pos = next_task(pos); + if (pos == &init_task) { + pos = NULL; + goto done; + } } - pos = NULL; +found: + get_task_struct(pos); done: rcu_read_unlock(); return pos; -- cgit v1.2.3 From 8578cea7509cbdec25b31d08b48a92fcc3b1a9e3 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:54 -0700 Subject: [PATCH] proc: make PROC_NUMBUF the buffer size for holding integers as strings Currently in /proc at several different places we define buffers to hold a process id, or a file descriptor . In most of them we use either a hard coded number or a different define. Modify them all to use PROC_NUMBUF, so the code has a chance of being maintained. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index bbcaef9adb5..20746e12440 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -185,6 +185,9 @@ enum pid_directory_inos { PROC_TID_FD_DIR = 0x8000, /* 0x8000-0xffff */ }; +/* Worst case buffer size needed for holding an integer. */ +#define PROC_NUMBUF 10 + struct pid_entry { int type; int len; @@ -807,12 +810,12 @@ static ssize_t oom_adjust_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { struct task_struct *task = proc_task(file->f_dentry->d_inode); - char buffer[8]; + char buffer[PROC_NUMBUF]; size_t len; int oom_adjust = task->oomkilladj; loff_t __ppos = *ppos; - len = sprintf(buffer, "%i\n", oom_adjust); + len = snprintf(buffer, sizeof(buffer), "%i\n", oom_adjust); if (__ppos >= len) return 0; if (count > len-__ppos) @@ -827,14 +830,14 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { struct task_struct *task = proc_task(file->f_dentry->d_inode); - char buffer[8], *end; + char buffer[PROC_NUMBUF], *end; int oom_adjust; if (!capable(CAP_SYS_RESOURCE)) return -EPERM; - memset(buffer, 0, 8); - if (count > 6) - count = 6; + memset(buffer, 0, sizeof(buffer)); + if (count > sizeof(buffer) - 1) + count = sizeof(buffer) - 1; if (copy_from_user(buffer, buf, count)) return -EFAULT; oom_adjust = simple_strtol(buffer, &end, 0); @@ -1099,8 +1102,6 @@ static struct inode_operations proc_pid_link_inode_operations = { .follow_link = proc_pid_follow_link }; -#define NUMBUF 10 - static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) { struct dentry *dentry = filp->f_dentry; @@ -1108,7 +1109,7 @@ static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) struct task_struct *p = proc_task(inode); unsigned int fd, tid, ino; int retval; - char buf[NUMBUF]; + char buf[PROC_NUMBUF]; struct files_struct * files; struct fdtable *fdt; @@ -1144,7 +1145,7 @@ static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) continue; rcu_read_unlock(); - j = NUMBUF; + j = PROC_NUMBUF; i = fd; do { j--; @@ -1153,7 +1154,7 @@ static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) } while (i); ino = fake_ino(tid, PROC_TID_FD_DIR + fd); - if (filldir(dirent, buf+j, NUMBUF-j, fd+2, ino, DT_LNK) < 0) { + if (filldir(dirent, buf+j, PROC_NUMBUF-j, fd+2, ino, DT_LNK) < 0) { rcu_read_lock(); break; } @@ -1828,14 +1829,14 @@ static struct inode_operations proc_tid_attr_inode_operations = { static int proc_self_readlink(struct dentry *dentry, char __user *buffer, int buflen) { - char tmp[30]; + char tmp[PROC_NUMBUF]; sprintf(tmp, "%d", current->tgid); return vfs_readlink(dentry,buffer,buflen,tmp); } static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd) { - char tmp[30]; + char tmp[PROC_NUMBUF]; sprintf(tmp, "%d", current->tgid); return ERR_PTR(vfs_follow_link(nd,tmp)); } @@ -1869,7 +1870,7 @@ static struct inode_operations proc_self_inode_operations = { void proc_flush_task(struct task_struct *task) { struct dentry *dentry, *leader, *dir; - char buf[30]; + char buf[PROC_NUMBUF]; struct qstr name; name.name = buf; @@ -2026,8 +2027,6 @@ out: return result; } -#define PROC_NUMBUF 10 - /* * Find the first tgid to return to user space. * -- cgit v1.2.3 From 99f895518368252ba862cc15ce4eb98ebbe1bec6 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:55 -0700 Subject: [PATCH] proc: don't lock task_structs indefinitely Every inode in /proc holds a reference to a struct task_struct. If a directory or file is opened and remains open after the the task exits this pinning continues. With 8K stacks on a 32bit machine the amount pinned per file descriptor is about 10K. Normally I would figure a reasonable per user process limit is about 100 processes. With 80 processes, with a 1000 file descriptors each I can trigger the 00M killer on a 32bit kernel, because I have pinned about 800MB of useless data. This patch replaces the struct task_struct pointer with a pointer to a struct task_ref which has a struct task_struct pointer. The so the pinning of dead tasks does not happen. The code now has to contend with the fact that the task may now exit at any time. Which is a little but not muh more complicated. With this change it takes about 1000 processes each opening up 1000 file descriptors before I can trigger the OOM killer. Much better. [mlp@google.com: task_mmu small fixes] Signed-off-by: Eric W. Biederman Cc: Trond Myklebust Cc: Paul Jackson Cc: Oleg Nesterov Cc: Albert Cahalan Signed-off-by: Prasanna Meda Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 355 ++++++++++++++++++++++++++++++++++-------------- fs/proc/inode.c | 9 +- fs/proc/internal.h | 15 +- fs/proc/task_mmu.c | 72 +++++++--- include/linux/proc_fs.h | 8 +- kernel/cpuset.c | 27 +++- mm/mempolicy.c | 6 +- 7 files changed, 349 insertions(+), 143 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 20746e12440..489810abc72 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -307,12 +307,15 @@ static struct pid_entry tid_attr_stuff[] = { static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt) { - struct task_struct *task = proc_task(inode); - struct files_struct *files; + struct task_struct *task = get_proc_task(inode); + struct files_struct *files = NULL; struct file *file; int fd = proc_fd(inode); - files = get_files_struct(task); + if (task) { + files = get_files_struct(task); + put_task_struct(task); + } if (files) { /* * We are not taking a ref to the file structure, so we must @@ -344,10 +347,29 @@ static struct fs_struct *get_fs_struct(struct task_struct *task) return fs; } +static int get_nr_threads(struct task_struct *tsk) +{ + /* Must be called with the rcu_read_lock held */ + unsigned long flags; + int count = 0; + + if (lock_task_sighand(tsk, &flags)) { + count = atomic_read(&tsk->signal->count); + unlock_task_sighand(tsk, &flags); + } + return count; +} + static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt) { - struct fs_struct *fs = get_fs_struct(proc_task(inode)); + struct task_struct *task = get_proc_task(inode); + struct fs_struct *fs = NULL; int result = -ENOENT; + + if (task) { + fs = get_fs_struct(task); + put_task_struct(task); + } if (fs) { read_lock(&fs->lock); *mnt = mntget(fs->pwdmnt); @@ -361,8 +383,14 @@ static int proc_cwd_link(struct inode *inode, struct dentry **dentry, struct vfs static int proc_root_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt) { - struct fs_struct *fs = get_fs_struct(proc_task(inode)); + struct task_struct *task = get_proc_task(inode); + struct fs_struct *fs = NULL; int result = -ENOENT; + + if (task) { + fs = get_fs_struct(task); + put_task_struct(task); + } if (fs) { read_lock(&fs->lock); *mnt = mntget(fs->rootmnt); @@ -550,16 +578,19 @@ struct proc_mounts { static int mounts_open(struct inode *inode, struct file *file) { - struct task_struct *task = proc_task(inode); - struct namespace *namespace; + struct task_struct *task = get_proc_task(inode); + struct namespace *namespace = NULL; struct proc_mounts *p; int ret = -EINVAL; - task_lock(task); - namespace = task->namespace; - if (namespace) - get_namespace(namespace); - task_unlock(task); + if (task) { + task_lock(task); + namespace = task->namespace; + if (namespace) + get_namespace(namespace); + task_unlock(task); + put_task_struct(task); + } if (namespace) { ret = -ENOMEM; @@ -616,17 +647,21 @@ static struct file_operations proc_mounts_operations = { extern struct seq_operations mountstats_op; static int mountstats_open(struct inode *inode, struct file *file) { - struct task_struct *task = proc_task(inode); int ret = seq_open(file, &mountstats_op); if (!ret) { struct seq_file *m = file->private_data; - struct namespace *namespace; - task_lock(task); - namespace = task->namespace; - if (namespace) - get_namespace(namespace); - task_unlock(task); + struct namespace *namespace = NULL; + struct task_struct *task = get_proc_task(inode); + + if (task) { + task_lock(task); + namespace = task->namespace; + if (namespace) + get_namespace(namespace); + task_unlock(task); + put_task_struct(task); + } if (namespace) m->private = namespace; @@ -653,18 +688,27 @@ static ssize_t proc_info_read(struct file * file, char __user * buf, struct inode * inode = file->f_dentry->d_inode; unsigned long page; ssize_t length; - struct task_struct *task = proc_task(inode); + struct task_struct *task = get_proc_task(inode); + + length = -ESRCH; + if (!task) + goto out_no_task; if (count > PROC_BLOCK_SIZE) count = PROC_BLOCK_SIZE; + + length = -ENOMEM; if (!(page = __get_free_page(GFP_KERNEL))) - return -ENOMEM; + goto out; length = PROC_I(inode)->op.proc_read(task, (char*)page); if (length >= 0) length = simple_read_from_buffer(buf, count, ppos, (char *)page, length); free_page(page); +out: + put_task_struct(task); +out_no_task: return length; } @@ -681,12 +725,15 @@ static int mem_open(struct inode* inode, struct file* file) static ssize_t mem_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct task_struct *task = proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file->f_dentry->d_inode); char *page; unsigned long src = *ppos; int ret = -ESRCH; struct mm_struct *mm; + if (!task) + goto out_no_task; + if (!MAY_PTRACE(task) || !ptrace_may_attach(task)) goto out; @@ -736,6 +783,8 @@ out_put: out_free: free_page((unsigned long) page); out: + put_task_struct(task); +out_no_task: return ret; } @@ -748,15 +797,20 @@ static ssize_t mem_write(struct file * file, const char * buf, { int copied = 0; char *page; - struct task_struct *task = proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file->f_dentry->d_inode); unsigned long dst = *ppos; + copied = -ESRCH; + if (!task) + goto out_no_task; + if (!MAY_PTRACE(task) || !ptrace_may_attach(task)) - return -ESRCH; + goto out; + copied = -ENOMEM; page = (char *)__get_free_page(GFP_USER); if (!page) - return -ENOMEM; + goto out; while (count > 0) { int this_len, retval; @@ -779,6 +833,9 @@ static ssize_t mem_write(struct file * file, const char * buf, } *ppos = dst; free_page((unsigned long) page); +out: + put_task_struct(task); +out_no_task: return copied; } #endif @@ -809,12 +866,17 @@ static struct file_operations proc_mem_operations = { static ssize_t oom_adjust_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *task = proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file->f_dentry->d_inode); char buffer[PROC_NUMBUF]; size_t len; - int oom_adjust = task->oomkilladj; + int oom_adjust; loff_t __ppos = *ppos; + if (!task) + return -ESRCH; + oom_adjust = task->oomkilladj; + put_task_struct(task); + len = snprintf(buffer, sizeof(buffer), "%i\n", oom_adjust); if (__ppos >= len) return 0; @@ -829,7 +891,7 @@ static ssize_t oom_adjust_read(struct file *file, char __user *buf, static ssize_t oom_adjust_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *task = proc_task(file->f_dentry->d_inode); + struct task_struct *task; char buffer[PROC_NUMBUF], *end; int oom_adjust; @@ -845,7 +907,11 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf, return -EINVAL; if (*end == '\n') end++; + task = get_proc_task(file->f_dentry->d_inode); + if (!task) + return -ESRCH; task->oomkilladj = oom_adjust; + put_task_struct(task); if (end - buffer == 0) return -EIO; return end - buffer; @@ -862,12 +928,15 @@ static ssize_t proc_loginuid_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { struct inode * inode = file->f_dentry->d_inode; - struct task_struct *task = proc_task(inode); + struct task_struct *task = get_proc_task(inode); ssize_t length; char tmpbuf[TMPBUFLEN]; + if (!task) + return -ESRCH; length = scnprintf(tmpbuf, TMPBUFLEN, "%u", audit_get_loginuid(task->audit_context)); + put_task_struct(task); return simple_read_from_buffer(buf, count, ppos, tmpbuf, length); } @@ -877,13 +946,12 @@ static ssize_t proc_loginuid_write(struct file * file, const char __user * buf, struct inode * inode = file->f_dentry->d_inode; char *page, *tmp; ssize_t length; - struct task_struct *task = proc_task(inode); uid_t loginuid; if (!capable(CAP_AUDIT_CONTROL)) return -EPERM; - if (current != task) + if (current != proc_tref(inode)->task) return -EPERM; if (count >= PAGE_SIZE) @@ -907,7 +975,7 @@ static ssize_t proc_loginuid_write(struct file * file, const char __user * buf, goto out_free_page; } - length = audit_set_loginuid(task, loginuid); + length = audit_set_loginuid(current, loginuid); if (likely(length == 0)) length = count; @@ -926,13 +994,16 @@ static struct file_operations proc_loginuid_operations = { static ssize_t seccomp_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *tsk = proc_task(file->f_dentry->d_inode); + struct task_struct *tsk = get_proc_task(file->f_dentry->d_inode); char __buf[20]; loff_t __ppos = *ppos; size_t len; + if (!tsk) + return -ESRCH; /* no need to print the trailing zero, so use only len */ len = sprintf(__buf, "%u\n", tsk->seccomp.mode); + put_task_struct(tsk); if (__ppos >= len) return 0; if (count > len - __ppos) @@ -946,29 +1017,43 @@ static ssize_t seccomp_read(struct file *file, char __user *buf, static ssize_t seccomp_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *tsk = proc_task(file->f_dentry->d_inode); + struct task_struct *tsk = get_proc_task(file->f_dentry->d_inode); char __buf[20], *end; unsigned int seccomp_mode; + ssize_t result; + + result = -ESRCH; + if (!tsk) + goto out_no_task; /* can set it only once to be even more secure */ + result = -EPERM; if (unlikely(tsk->seccomp.mode)) - return -EPERM; + goto out; + result = -EFAULT; memset(__buf, 0, sizeof(__buf)); count = min(count, sizeof(__buf) - 1); if (copy_from_user(__buf, buf, count)) - return -EFAULT; + goto out; + seccomp_mode = simple_strtoul(__buf, &end, 0); if (*end == '\n') end++; + result = -EINVAL; if (seccomp_mode && seccomp_mode <= NR_SECCOMP_MODES) { tsk->seccomp.mode = seccomp_mode; set_tsk_thread_flag(tsk, TIF_SECCOMP); } else - return -EINVAL; + goto out; + result = -EIO; if (unlikely(!(end - __buf))) - return -EIO; - return end - __buf; + goto out; + result = end - __buf; +out: + put_task_struct(tsk); +out_no_task: + return result; } static struct file_operations proc_seccomp_operations = { @@ -995,7 +1080,7 @@ static int proc_check_dentry_visible(struct inode *inode, /* See if the the two tasks share a commone set of * file descriptors. If so everything is visible. */ - task = proc_task(inode); + task = get_proc_task(inode); if (!task) goto out; files = get_files_struct(current); @@ -1006,6 +1091,7 @@ static int proc_check_dentry_visible(struct inode *inode, put_files_struct(task_files); if (files) put_files_struct(files); + put_task_struct(task); if (!error) goto out; @@ -1106,7 +1192,7 @@ static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) { struct dentry *dentry = filp->f_dentry; struct inode *inode = dentry->d_inode; - struct task_struct *p = proc_task(inode); + struct task_struct *p = get_proc_task(inode); unsigned int fd, tid, ino; int retval; char buf[PROC_NUMBUF]; @@ -1114,8 +1200,8 @@ static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) struct fdtable *fdt; retval = -ENOENT; - if (!pid_alive(p)) - goto out; + if (!p) + goto out_no_task; retval = 0; tid = p->pid; @@ -1164,6 +1250,8 @@ static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) put_files_struct(files); } out: + put_task_struct(p); +out_no_task: return retval; } @@ -1175,16 +1263,18 @@ static int proc_pident_readdir(struct file *filp, int pid; struct dentry *dentry = filp->f_dentry; struct inode *inode = dentry->d_inode; + struct task_struct *task = get_proc_task(inode); struct pid_entry *p; ino_t ino; int ret; ret = -ENOENT; - if (!pid_alive(proc_task(inode))) + if (!task) goto out; ret = 0; - pid = proc_task(inode)->pid; + pid = task->pid; + put_task_struct(task); i = filp->f_pos; switch (i) { case 0: @@ -1270,14 +1360,13 @@ static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_st inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_ino = fake_ino(task->pid, ino); - if (!pid_alive(task)) - goto out_unlock; - /* * grab the reference to task. */ - get_task_struct(task); - ei->task = task; + ei->tref = tref_get_by_task(task); + if (!tref_task(ei->tref)) + goto out_unlock; + inode->i_uid = 0; inode->i_gid = 0; if (task_dumpable(task)) { @@ -1303,13 +1392,21 @@ out_unlock: * * Rewrite the inode's ownerships here because the owning task may have * performed a setuid(), etc. + * + * Before the /proc/pid/status file was created the only way to read + * the effective uid of a /process was to stat /proc/pid. Reading + * /proc/pid/status is slow enough that procps and other packages + * kept stating /proc/pid. To keep the rules in /proc simple I have + * made this apply to all per process world readable and executable + * directories. */ static int pid_revalidate(struct dentry *dentry, struct nameidata *nd) { struct inode *inode = dentry->d_inode; - struct task_struct *task = proc_task(inode); - if (pid_alive(task)) { - if (task_dumpable(task)) { + struct task_struct *task = get_proc_task(inode); + if (task) { + if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || + task_dumpable(task)) { inode->i_uid = task->euid; inode->i_gid = task->egid; } else { @@ -1317,37 +1414,63 @@ static int pid_revalidate(struct dentry *dentry, struct nameidata *nd) inode->i_gid = 0; } security_task_to_inode(task, inode); + put_task_struct(task); return 1; } d_drop(dentry); return 0; } +static int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) +{ + struct inode *inode = dentry->d_inode; + struct task_struct *task; + generic_fillattr(inode, stat); + + rcu_read_lock(); + stat->uid = 0; + stat->gid = 0; + task = pid_task(proc_pid(inode), PIDTYPE_PID); + if (task) { + if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || + task_dumpable(task)) { + stat->uid = task->euid; + stat->gid = task->egid; + } + } + rcu_read_unlock(); + return 0; +} + static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd) { struct inode *inode = dentry->d_inode; - struct task_struct *task = proc_task(inode); + struct task_struct *task = get_proc_task(inode); int fd = proc_fd(inode); struct files_struct *files; - files = get_files_struct(task); - if (files) { - rcu_read_lock(); - if (fcheck_files(files, fd)) { + if (task) { + files = get_files_struct(task); + if (files) { + rcu_read_lock(); + if (fcheck_files(files, fd)) { + rcu_read_unlock(); + put_files_struct(files); + if (task_dumpable(task)) { + inode->i_uid = task->euid; + inode->i_gid = task->egid; + } else { + inode->i_uid = 0; + inode->i_gid = 0; + } + security_task_to_inode(task, inode); + put_task_struct(task); + return 1; + } rcu_read_unlock(); put_files_struct(files); - if (task_dumpable(task)) { - inode->i_uid = task->euid; - inode->i_gid = task->egid; - } else { - inode->i_uid = 0; - inode->i_gid = 0; - } - security_task_to_inode(task, inode); - return 1; } - rcu_read_unlock(); - put_files_struct(files); + put_task_struct(task); } d_drop(dentry); return 0; @@ -1359,7 +1482,7 @@ static int pid_delete_dentry(struct dentry * dentry) * If so, then don't put the dentry on the lru list, * kill it immediately. */ - return !pid_alive(proc_task(dentry->d_inode)); + return !proc_tref(dentry->d_inode)->task; } static struct dentry_operations tid_fd_dentry_operations = @@ -1401,7 +1524,7 @@ out: /* SMP-safe */ static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, struct nameidata *nd) { - struct task_struct *task = proc_task(dir); + struct task_struct *task = get_proc_task(dir); unsigned fd = name_to_int(dentry); struct dentry *result = ERR_PTR(-ENOENT); struct file * file; @@ -1409,10 +1532,10 @@ static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, struct inode *inode; struct proc_inode *ei; + if (!task) + goto out_no_task; if (fd == ~0U) goto out; - if (!pid_alive(task)) - goto out; inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_FD_DIR+fd); if (!inode) @@ -1447,6 +1570,8 @@ static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, if (tid_fd_revalidate(dentry, NULL)) result = NULL; out: + put_task_struct(task); +out_no_task: return result; out_unlock2: @@ -1490,12 +1615,17 @@ static ssize_t proc_pid_attr_read(struct file * file, char __user * buf, struct inode * inode = file->f_dentry->d_inode; unsigned long page; ssize_t length; - struct task_struct *task = proc_task(inode); + struct task_struct *task = get_proc_task(inode); + + length = -ESRCH; + if (!task) + goto out_no_task; if (count > PAGE_SIZE) count = PAGE_SIZE; + length = -ENOMEM; if (!(page = __get_free_page(GFP_KERNEL))) - return -ENOMEM; + goto out; length = security_getprocattr(task, (char*)file->f_dentry->d_name.name, @@ -1503,6 +1633,9 @@ static ssize_t proc_pid_attr_read(struct file * file, char __user * buf, if (length >= 0) length = simple_read_from_buffer(buf, count, ppos, (char *)page, length); free_page(page); +out: + put_task_struct(task); +out_no_task: return length; } @@ -1512,26 +1645,36 @@ static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf, struct inode * inode = file->f_dentry->d_inode; char *page; ssize_t length; - struct task_struct *task = proc_task(inode); + struct task_struct *task = get_proc_task(inode); + length = -ESRCH; + if (!task) + goto out_no_task; if (count > PAGE_SIZE) count = PAGE_SIZE; - if (*ppos != 0) { - /* No partial writes. */ - return -EINVAL; - } + + /* No partial writes. */ + length = -EINVAL; + if (*ppos != 0) + goto out; + + length = -ENOMEM; page = (char*)__get_free_page(GFP_USER); if (!page) - return -ENOMEM; + goto out; + length = -EFAULT; if (copy_from_user(page, buf, count)) - goto out; + goto out_free; length = security_setprocattr(task, (char*)file->f_dentry->d_name.name, (void*)page, count); -out: +out_free: free_page((unsigned long) page); +out: + put_task_struct(task); +out_no_task: return length; } @@ -1553,15 +1696,15 @@ static struct dentry *proc_pident_lookup(struct inode *dir, { struct inode *inode; struct dentry *error; - struct task_struct *task = proc_task(dir); + struct task_struct *task = get_proc_task(dir); struct pid_entry *p; struct proc_inode *ei; error = ERR_PTR(-ENOENT); inode = NULL; - if (!pid_alive(task)) - goto out; + if (!task) + goto out_no_task; for (p = ents; p->name; p++) { if (p->len != dentry->d_name.len) @@ -1748,6 +1891,8 @@ static struct dentry *proc_pident_lookup(struct inode *dir, if (pid_revalidate(dentry, NULL)) error = NULL; out: + put_task_struct(task); +out_no_task: return error; } @@ -1771,10 +1916,12 @@ static struct file_operations proc_tid_base_operations = { static struct inode_operations proc_tgid_base_inode_operations = { .lookup = proc_tgid_base_lookup, + .getattr = pid_getattr, }; static struct inode_operations proc_tid_base_inode_operations = { .lookup = proc_tid_base_lookup, + .getattr = pid_getattr, }; #ifdef CONFIG_SECURITY @@ -1816,10 +1963,12 @@ static struct dentry *proc_tid_attr_lookup(struct inode *dir, static struct inode_operations proc_tgid_attr_inode_operations = { .lookup = proc_tgid_attr_lookup, + .getattr = pid_getattr, }; static struct inode_operations proc_tid_attr_inode_operations = { .lookup = proc_tid_attr_lookup, + .getattr = pid_getattr, }; #endif @@ -1981,10 +2130,13 @@ static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry { struct dentry *result = ERR_PTR(-ENOENT); struct task_struct *task; - struct task_struct *leader = proc_task(dir); + struct task_struct *leader = get_proc_task(dir); struct inode *inode; unsigned tid; + if (!leader) + goto out_no_task; + tid = name_to_int(dentry); if (tid == ~0U) goto out; @@ -2024,6 +2176,8 @@ static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry out_drop_task: put_task_struct(task); out: + put_task_struct(leader); +out_no_task: return result; } @@ -2163,12 +2317,7 @@ static struct task_struct *first_tid(struct task_struct *leader, int tid, int nr /* If nr exceeds the number of threads there is nothing todo */ if (nr) { - int threads = 0; - task_lock(leader); - if (leader->signal) - threads = atomic_read(&leader->signal->count); - task_unlock(leader); - if (nr >= threads) + if (nr >= get_nr_threads(leader)) goto done; } @@ -2218,15 +2367,15 @@ static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldi char buf[PROC_NUMBUF]; struct dentry *dentry = filp->f_dentry; struct inode *inode = dentry->d_inode; - struct task_struct *leader = proc_task(inode); + struct task_struct *leader = get_proc_task(inode); struct task_struct *task; int retval = -ENOENT; ino_t ino; int tid; unsigned long pos = filp->f_pos; /* avoiding "long long" filp->f_pos */ - if (!pid_alive(leader)) - goto out; + if (!leader) + goto out_no_task; retval = 0; switch (pos) { @@ -2266,20 +2415,22 @@ static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldi } out: filp->f_pos = pos; + put_task_struct(leader); +out_no_task: return retval; } static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { struct inode *inode = dentry->d_inode; - struct task_struct *p = proc_task(inode); + struct task_struct *p = get_proc_task(inode); generic_fillattr(inode, stat); - if (pid_alive(p)) { - task_lock(p); - if (p->signal) - stat->nlink += atomic_read(&p->signal->count); - task_unlock(p); + if (p) { + rcu_read_lock(); + stat->nlink += get_nr_threads(p); + rcu_read_unlock(); + put_task_struct(p); } return 0; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index fbc94df138a..31e0475c6cb 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -58,14 +58,11 @@ static void de_put(struct proc_dir_entry *de) static void proc_delete_inode(struct inode *inode) { struct proc_dir_entry *de; - struct task_struct *tsk; truncate_inode_pages(&inode->i_data, 0); - /* Let go of any associated process */ - tsk = PROC_I(inode)->task; - if (tsk) - put_task_struct(tsk); + /* Stop tracking associated processes */ + tref_put(PROC_I(inode)->tref); /* Let go of any associated proc directory entry */ de = PROC_I(inode)->pde; @@ -94,7 +91,7 @@ static struct inode *proc_alloc_inode(struct super_block *sb) ei = (struct proc_inode *)kmem_cache_alloc(proc_inode_cachep, SLAB_KERNEL); if (!ei) return NULL; - ei->task = NULL; + ei->tref = NULL; ei->fd = 0; ei->op.proc_get_link = NULL; ei->pde = NULL; diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 548e7447ea4..37f1648adc2 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -10,6 +10,7 @@ */ #include +#include struct vmalloc_info { unsigned long used; @@ -41,13 +42,23 @@ extern struct file_operations proc_maps_operations; extern struct file_operations proc_numa_maps_operations; extern struct file_operations proc_smaps_operations; +extern struct file_operations proc_maps_operations; +extern struct file_operations proc_numa_maps_operations; +extern struct file_operations proc_smaps_operations; + + void free_proc_entry(struct proc_dir_entry *de); int proc_init_inodecache(void); -static inline struct task_struct *proc_task(struct inode *inode) +static inline struct task_ref *proc_tref(struct inode *inode) +{ + return PROC_I(inode)->tref; +} + +static inline struct task_struct *get_proc_task(struct inode *inode) { - return PROC_I(inode)->task; + return get_tref_task(proc_tref(inode)); } static inline int proc_fd(struct inode *inode) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 4187b4e9cdb..abf3208c3f6 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -75,9 +75,13 @@ int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount * { struct vm_area_struct * vma; int result = -ENOENT; - struct task_struct *task = proc_task(inode); - struct mm_struct * mm = get_task_mm(task); + struct task_struct *task = get_proc_task(inode); + struct mm_struct * mm = NULL; + if (task) { + mm = get_task_mm(task); + put_task_struct(task); + } if (!mm) goto out; down_read(&mm->mmap_sem); @@ -120,7 +124,8 @@ struct mem_size_stats static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats *mss) { - struct task_struct *task = m->private; + struct proc_maps_private *priv = m->private; + struct task_struct *task = priv->task; struct vm_area_struct *vma = v; struct mm_struct *mm = vma->vm_mm; struct file *file = vma->vm_file; @@ -295,12 +300,16 @@ static int show_smap(struct seq_file *m, void *v) static void *m_start(struct seq_file *m, loff_t *pos) { - struct task_struct *task = m->private; + struct proc_maps_private *priv = m->private; unsigned long last_addr = m->version; struct mm_struct *mm; - struct vm_area_struct *vma, *tail_vma; + struct vm_area_struct *vma, *tail_vma = NULL; loff_t l = *pos; + /* Clear the per syscall fields in priv */ + priv->task = NULL; + priv->tail_vma = NULL; + /* * We remember last_addr rather than next_addr to hit with * mmap_cache most of the time. We have zero last_addr at @@ -311,11 +320,15 @@ static void *m_start(struct seq_file *m, loff_t *pos) if (last_addr == -1UL) return NULL; - mm = get_task_mm(task); + priv->task = get_tref_task(priv->tref); + if (!priv->task) + return NULL; + + mm = get_task_mm(priv->task); if (!mm) return NULL; - tail_vma = get_gate_vma(task); + priv->tail_vma = tail_vma = get_gate_vma(priv->task); down_read(&mm->mmap_sem); /* Start with last addr hint */ @@ -350,11 +363,9 @@ out: return tail_vma; } -static void m_stop(struct seq_file *m, void *v) +static void vma_stop(struct proc_maps_private *priv, struct vm_area_struct *vma) { - struct task_struct *task = m->private; - struct vm_area_struct *vma = v; - if (vma && vma != get_gate_vma(task)) { + if (vma && vma != priv->tail_vma) { struct mm_struct *mm = vma->vm_mm; up_read(&mm->mmap_sem); mmput(mm); @@ -363,17 +374,27 @@ static void m_stop(struct seq_file *m, void *v) static void *m_next(struct seq_file *m, void *v, loff_t *pos) { - struct task_struct *task = m->private; + struct proc_maps_private *priv = m->private; struct vm_area_struct *vma = v; - struct vm_area_struct *tail_vma = get_gate_vma(task); + struct vm_area_struct *tail_vma = priv->tail_vma; (*pos)++; if (vma && (vma != tail_vma) && vma->vm_next) return vma->vm_next; - m_stop(m, v); + vma_stop(priv, vma); return (vma != tail_vma)? tail_vma: NULL; } +static void m_stop(struct seq_file *m, void *v) +{ + struct proc_maps_private *priv = m->private; + struct vm_area_struct *vma = v; + + vma_stop(priv, vma); + if (priv->task) + put_task_struct(priv->task); +} + static struct seq_operations proc_pid_maps_op = { .start = m_start, .next = m_next, @@ -391,11 +412,18 @@ static struct seq_operations proc_pid_smaps_op = { static int do_maps_open(struct inode *inode, struct file *file, struct seq_operations *ops) { - struct task_struct *task = proc_task(inode); - int ret = seq_open(file, ops); - if (!ret) { - struct seq_file *m = file->private_data; - m->private = task; + struct proc_maps_private *priv; + int ret = -ENOMEM; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (priv) { + priv->tref = proc_tref(inode); + ret = seq_open(file, ops); + if (!ret) { + struct seq_file *m = file->private_data; + m->private = priv; + } else { + kfree(priv); + } } return ret; } @@ -409,7 +437,7 @@ struct file_operations proc_maps_operations = { .open = maps_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_private, }; #ifdef CONFIG_NUMA @@ -431,7 +459,7 @@ struct file_operations proc_numa_maps_operations = { .open = numa_maps_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_private, }; #endif @@ -444,5 +472,5 @@ struct file_operations proc_smaps_operations = { .open = smaps_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_private, }; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index d4d2081dbaf..4c7271f0469 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -246,7 +246,7 @@ extern void kclist_add(struct kcore_list *, void *, size_t); #endif struct proc_inode { - struct task_struct *task; + struct task_ref *tref; int fd; union { int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **); @@ -266,4 +266,10 @@ static inline struct proc_dir_entry *PDE(const struct inode *inode) return PROC_I(inode)->pde; } +struct proc_maps_private { + struct task_ref *tref; + struct task_struct *task; + struct vm_area_struct *tail_vma; +}; + #endif /* _LINUX_PROC_FS_H */ diff --git a/kernel/cpuset.c b/kernel/cpuset.c index b602f73fb38..3e991c0c02e 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -50,6 +50,7 @@ #include #include #include +#include #include #include @@ -2442,31 +2443,43 @@ void __cpuset_memory_pressure_bump(void) */ static int proc_cpuset_show(struct seq_file *m, void *v) { + struct task_ref *tref; struct task_struct *tsk; char *buf; - int retval = 0; + int retval; + retval = -ENOMEM; buf = kmalloc(PAGE_SIZE, GFP_KERNEL); if (!buf) - return -ENOMEM; + goto out; + + retval = -ESRCH; + tref = m->private; + tsk = get_tref_task(tref); + if (!tsk) + goto out_free; - tsk = m->private; + retval = -EINVAL; mutex_lock(&manage_mutex); + retval = cpuset_path(tsk->cpuset, buf, PAGE_SIZE); if (retval < 0) - goto out; + goto out_unlock; seq_puts(m, buf); seq_putc(m, '\n'); -out: +out_unlock: mutex_unlock(&manage_mutex); + put_task_struct(tsk); +out_free: kfree(buf); +out: return retval; } static int cpuset_open(struct inode *inode, struct file *file) { - struct task_struct *tsk = PROC_I(inode)->task; - return single_open(file, proc_cpuset_show, tsk); + struct task_ref *tref = PROC_I(inode)->tref; + return single_open(file, proc_cpuset_show, tref); } struct file_operations proc_cpuset_operations = { diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 73e0f23b7f5..6b9740bbf4c 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1821,7 +1821,7 @@ static inline void check_huge_range(struct vm_area_struct *vma, int show_numa_map(struct seq_file *m, void *v) { - struct task_struct *task = m->private; + struct proc_maps_private *priv = m->private; struct vm_area_struct *vma = v; struct numa_maps *md; struct file *file = vma->vm_file; @@ -1837,7 +1837,7 @@ int show_numa_map(struct seq_file *m, void *v) return 0; mpol_to_str(buffer, sizeof(buffer), - get_vma_policy(task, vma, vma->vm_start)); + get_vma_policy(priv->task, vma, vma->vm_start)); seq_printf(m, "%08lx %s", vma->vm_start, buffer); @@ -1891,7 +1891,7 @@ out: kfree(md); if (m->count < m->size) - m->version = (vma != get_gate_vma(task)) ? vma->vm_start : 0; + m->version = (vma != priv->tail_vma) ? vma->vm_start : 0; return 0; } -- cgit v1.2.3 From 13b41b09491e5d75e8027dca1ee78f5e073bc4c0 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:56 -0700 Subject: [PATCH] proc: Use struct pid not struct task_ref Incrementally update my proc-dont-lock-task_structs-indefinitely patches so that they work with struct pid instead of struct task_ref. Mostly this is a straight 1-1 substitution. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 8 ++++---- fs/proc/inode.c | 4 ++-- fs/proc/internal.h | 7 +++---- fs/proc/task_mmu.c | 4 ++-- include/linux/proc_fs.h | 4 ++-- kernel/cpuset.c | 11 +++++------ 6 files changed, 18 insertions(+), 20 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 489810abc72..c7f85544157 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -951,7 +951,7 @@ static ssize_t proc_loginuid_write(struct file * file, const char __user * buf, if (!capable(CAP_AUDIT_CONTROL)) return -EPERM; - if (current != proc_tref(inode)->task) + if (current != pid_task(proc_pid(inode), PIDTYPE_PID)) return -EPERM; if (count >= PAGE_SIZE) @@ -1363,8 +1363,8 @@ static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_st /* * grab the reference to task. */ - ei->tref = tref_get_by_task(task); - if (!tref_task(ei->tref)) + ei->pid = get_pid(task->pids[PIDTYPE_PID].pid); + if (!ei->pid) goto out_unlock; inode->i_uid = 0; @@ -1482,7 +1482,7 @@ static int pid_delete_dentry(struct dentry * dentry) * If so, then don't put the dentry on the lru list, * kill it immediately. */ - return !proc_tref(dentry->d_inode)->task; + return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first; } static struct dentry_operations tid_fd_dentry_operations = diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 31e0475c6cb..6dcef089e18 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -62,7 +62,7 @@ static void proc_delete_inode(struct inode *inode) truncate_inode_pages(&inode->i_data, 0); /* Stop tracking associated processes */ - tref_put(PROC_I(inode)->tref); + put_pid(PROC_I(inode)->pid); /* Let go of any associated proc directory entry */ de = PROC_I(inode)->pde; @@ -91,7 +91,7 @@ static struct inode *proc_alloc_inode(struct super_block *sb) ei = (struct proc_inode *)kmem_cache_alloc(proc_inode_cachep, SLAB_KERNEL); if (!ei) return NULL; - ei->tref = NULL; + ei->pid = NULL; ei->fd = 0; ei->op.proc_get_link = NULL; ei->pde = NULL; diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 37f1648adc2..146a434ba94 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -10,7 +10,6 @@ */ #include -#include struct vmalloc_info { unsigned long used; @@ -51,14 +50,14 @@ void free_proc_entry(struct proc_dir_entry *de); int proc_init_inodecache(void); -static inline struct task_ref *proc_tref(struct inode *inode) +static inline struct pid *proc_pid(struct inode *inode) { - return PROC_I(inode)->tref; + return PROC_I(inode)->pid; } static inline struct task_struct *get_proc_task(struct inode *inode) { - return get_tref_task(proc_tref(inode)); + return get_pid_task(proc_pid(inode), PIDTYPE_PID); } static inline int proc_fd(struct inode *inode) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index abf3208c3f6..0137ec4c136 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -320,7 +320,7 @@ static void *m_start(struct seq_file *m, loff_t *pos) if (last_addr == -1UL) return NULL; - priv->task = get_tref_task(priv->tref); + priv->task = get_pid_task(priv->pid, PIDTYPE_PID); if (!priv->task) return NULL; @@ -416,7 +416,7 @@ static int do_maps_open(struct inode *inode, struct file *file, int ret = -ENOMEM; priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (priv) { - priv->tref = proc_tref(inode); + priv->pid = proc_pid(inode); ret = seq_open(file, ops); if (!ret) { struct seq_file *m = file->private_data; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 4c7271f0469..17e75783e3a 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -246,7 +246,7 @@ extern void kclist_add(struct kcore_list *, void *, size_t); #endif struct proc_inode { - struct task_ref *tref; + struct pid *pid; int fd; union { int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **); @@ -267,7 +267,7 @@ static inline struct proc_dir_entry *PDE(const struct inode *inode) } struct proc_maps_private { - struct task_ref *tref; + struct pid *pid; struct task_struct *task; struct vm_area_struct *tail_vma; }; diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 3e991c0c02e..1535af3a912 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -50,7 +50,6 @@ #include #include #include -#include #include #include @@ -2443,7 +2442,7 @@ void __cpuset_memory_pressure_bump(void) */ static int proc_cpuset_show(struct seq_file *m, void *v) { - struct task_ref *tref; + struct pid *pid; struct task_struct *tsk; char *buf; int retval; @@ -2454,8 +2453,8 @@ static int proc_cpuset_show(struct seq_file *m, void *v) goto out; retval = -ESRCH; - tref = m->private; - tsk = get_tref_task(tref); + pid = m->private; + tsk = get_pid_task(pid, PIDTYPE_PID); if (!tsk) goto out_free; @@ -2478,8 +2477,8 @@ out: static int cpuset_open(struct inode *inode, struct file *file) { - struct task_ref *tref = PROC_I(inode)->tref; - return single_open(file, proc_cpuset_show, tref); + struct pid *pid = PROC_I(inode)->pid; + return single_open(file, proc_cpuset_show, pid); } struct file_operations proc_cpuset_operations = { -- cgit v1.2.3 From 5b0c1dd38b66e2dd0cf655aa845e341b50b93ddd Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:57 -0700 Subject: [PATCH] proc: optimize proc_check_dentry_visible The code doesn't need to sleep to when making this check so I can just do the comparison and not worry about the reference counts. TODO: While looking at this I realized that my original cleanup did not push the permission check far enough down into the stack. The call of proc_check_dentry_visible needs to move out of the generic proc readlink/follow link code and into the individual get_link instances. Otherwise the shared resources checks are not quite correct (shared files_struct does not require a shared fs_struct), and there are races with unshare. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index c7f85544157..f0db7f616ac 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1074,24 +1074,27 @@ static int proc_check_dentry_visible(struct inode *inode, * namespace, or are simply process local (like pipes). */ struct task_struct *task; - struct files_struct *task_files, *files; int error = -EACCES; /* See if the the two tasks share a commone set of * file descriptors. If so everything is visible. */ - task = get_proc_task(inode); - if (!task) - goto out; - files = get_files_struct(current); - task_files = get_files_struct(task); - if (files && task_files && (files == task_files)) - error = 0; - if (task_files) - put_files_struct(task_files); - if (files) - put_files_struct(files); - put_task_struct(task); + rcu_read_lock(); + task = tref_task(proc_tref(inode)); + if (task) { + struct files_struct *task_files, *files; + /* This test answeres the question: + * Is there a point in time since we looked up the + * file descriptor where the two tasks share the + * same files struct? + */ + rmb(); + files = current->files; + task_files = task->files; + if (files && (files == task_files)) + error = 0; + } + rcu_read_unlock(); if (!error) goto out; -- cgit v1.2.3 From 778c1144771f0064b6f51bee865cceb0d996f2f9 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:58 -0700 Subject: [PATCH] proc: Use sane permission checks on the /proc//fd/ symlinks Since 2.2 we have been doing a chroot check to see if it is appropriate to return a read or follow one of these magic symlinks. The chroot check was asking a question about the visibility of files to the calling process and it was actually checking the destination process, and not the files themselves. That test was clearly bogus. In my first pass through I simply fixed the test to check the visibility of the files themselves. That naive approach to fixing the permissions was too strict and resulted in cases where a task could not even see all of it's file descriptors. What has disturbed me about relaxing this check is that file descriptors are per-process private things, and they are occasionaly used a user space capability tokens. Looking a little farther into the symlink path on /proc I did find userid checks and a check for capability (CAP_DAC_OVERRIDE) so there were permissions checking this. But I was still concerned about privacy. Besides /proc there is only one other way to find out this kind of information, and that is ptrace. ptrace has been around for a long time and it has a well established security model. So after thinking about it I finally realized that the permission checks that make sense are the permission checks applied to ptrace_attach. The checks are simple per process, and won't cause nasty surprises for people coming from less capable unices. Unfortunately there is one case that the current ptrace_attach test does not cover: Zombies and kernel threads. Single stepping those kinds of processes is impossible. Being able to see which file descriptors are open on these tasks is important to lsof, fuser and friends. So for these special processes I made the rule you can't find out unless you have CAP_SYS_PTRACE. These proc permission checks should now conform to the principle of least surprise. As well as using much less code to implement :) Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 124 ++++++++++++++------------------------------------------- 1 file changed, 29 insertions(+), 95 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index f0db7f616ac..f38da6bda26 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -532,42 +532,34 @@ static int proc_oom_score(struct task_struct *task, char *buffer) /************************************************************************/ /* permission checks */ - -/* If the process being read is separated by chroot from the reading process, - * don't let the reader access the threads. - */ -static int proc_check_chroot(struct dentry *de, struct vfsmount *mnt) +static int proc_fd_access_allowed(struct inode *inode) { - struct dentry *base; - struct vfsmount *our_vfsmnt; - int res = 0; - - read_lock(¤t->fs->lock); - our_vfsmnt = mntget(current->fs->rootmnt); - base = dget(current->fs->root); - read_unlock(¤t->fs->lock); - - spin_lock(&vfsmount_lock); + struct task_struct *task; + int allowed = 0; + /* Allow access to a task's file descriptors if either we may + * use ptrace attach to the process and find out that + * information, or if the task cannot possibly be ptraced + * allow access if we have the proper capability. + */ + task = get_proc_task(inode); + if (task == current) + allowed = 1; + if (task && !allowed) { + int alive; - while (mnt != our_vfsmnt) { - if (mnt == mnt->mnt_parent) - goto out; - de = mnt->mnt_mountpoint; - mnt = mnt->mnt_parent; + task_lock(task); + alive = !!task->mm; + task_unlock(task); + if (alive) + /* For a living task obey ptrace_may_attach */ + allowed = ptrace_may_attach(task); + else + /* For a special task simply check the capability */ + allowed = capable(CAP_SYS_PTRACE); } - - if (!is_subdir(de, base)) - goto out; - spin_unlock(&vfsmount_lock); - -exit: - dput(base); - mntput(our_vfsmnt); - return res; -out: - spin_unlock(&vfsmount_lock); - res = -EACCES; - goto exit; + if (task) + put_task_struct(task); + return allowed; } extern struct seq_operations mounts_op; @@ -1062,52 +1054,6 @@ static struct file_operations proc_seccomp_operations = { }; #endif /* CONFIG_SECCOMP */ -static int proc_check_dentry_visible(struct inode *inode, - struct dentry *dentry, struct vfsmount *mnt) -{ - /* Verify that the current process can already see the - * file pointed at by the file descriptor. - * This prevents /proc from being an accidental information leak. - * - * This prevents access to files that are not visible do to - * being on the otherside of a chroot, in a different - * namespace, or are simply process local (like pipes). - */ - struct task_struct *task; - int error = -EACCES; - - /* See if the the two tasks share a commone set of - * file descriptors. If so everything is visible. - */ - rcu_read_lock(); - task = tref_task(proc_tref(inode)); - if (task) { - struct files_struct *task_files, *files; - /* This test answeres the question: - * Is there a point in time since we looked up the - * file descriptor where the two tasks share the - * same files struct? - */ - rmb(); - files = current->files; - task_files = task->files; - if (files && (files == task_files)) - error = 0; - } - rcu_read_unlock(); - if (!error) - goto out; - - /* If the two tasks don't share a common set of file - * descriptors see if the destination dentry is already - * visible in the current tasks filesystem namespace. - */ - error = proc_check_chroot(dentry, mnt); -out: - return error; - -} - static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) { struct inode *inode = dentry->d_inode; @@ -1116,18 +1062,12 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) /* We don't need a base pointer in the /proc filesystem */ path_release(nd); - if (current->fsuid != inode->i_uid && !capable(CAP_DAC_OVERRIDE)) + /* Are we allowed to snoop on the tasks file descriptors? */ + if (!proc_fd_access_allowed(inode)) goto out; error = PROC_I(inode)->op.proc_get_link(inode, &nd->dentry, &nd->mnt); nd->last_type = LAST_BIND; - if (error) - goto out; - - /* Only return files this task can already see */ - error = proc_check_dentry_visible(inode, nd->dentry, nd->mnt); - if (error) - path_release(nd); out: return ERR_PTR(error); } @@ -1165,21 +1105,15 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b struct dentry *de; struct vfsmount *mnt = NULL; - - if (current->fsuid != inode->i_uid && !capable(CAP_DAC_OVERRIDE)) + /* Are we allowed to snoop on the tasks file descriptors? */ + if (!proc_fd_access_allowed(inode)) goto out; error = PROC_I(inode)->op.proc_get_link(inode, &de, &mnt); if (error) goto out; - /* Only return files this task can already see */ - error = proc_check_dentry_visible(inode, de, mnt); - if (error) - goto out_put; - error = do_proc_readlink(de, mnt, buffer, buflen); -out_put: dput(de); mntput(mnt); out: -- cgit v1.2.3 From df26c40e567356caeefe2861311e19c54444d917 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:25:59 -0700 Subject: [PATCH] proc: Cleanup proc_fd_access_allowed In process of getting proc_fd_access_allowed to work it has developed a few warts. In particular the special case that always allows introspection and the special case to allow inspection of kernel threads. The special case for introspection is needed for /proc/self/mem. The special case for kernel threads really should be overridable by security modules. So consolidate these checks into ptrace.c:may_attach(). The check to always allow introspection is trivial. The check to allow access to kernel threads, and zombies is a little trickier. mem_read and mem_write already verify an mm exists so it isn't needed twice. proc_fd_access_allowed only doesn't want a check to verify task->mm exits, s it prevents all access to kernel threads. So just move the task->mm check into ptrace_attach where it is needed for practical reasons. I did a quick audit and none of the security modules in the kernel seem to care if they are passed a task without an mm into security_ptrace. So the above move should be safe and it allows security modules to come up with more restrictive policy. Signed-off-by: Eric W. Biederman Cc: Stephen Smalley Cc: Chris Wright Cc: James Morris Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 26 ++++++-------------------- kernel/ptrace.c | 20 +++++++++++++++++--- 2 files changed, 23 insertions(+), 23 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index f38da6bda26..773469703c6 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -536,29 +536,15 @@ static int proc_fd_access_allowed(struct inode *inode) { struct task_struct *task; int allowed = 0; - /* Allow access to a task's file descriptors if either we may - * use ptrace attach to the process and find out that - * information, or if the task cannot possibly be ptraced - * allow access if we have the proper capability. + /* Allow access to a task's file descriptors if it is us or we + * may use ptrace attach to the process and find out that + * information. */ task = get_proc_task(inode); - if (task == current) - allowed = 1; - if (task && !allowed) { - int alive; - - task_lock(task); - alive = !!task->mm; - task_unlock(task); - if (alive) - /* For a living task obey ptrace_may_attach */ - allowed = ptrace_may_attach(task); - else - /* For a special task simply check the capability */ - allowed = capable(CAP_SYS_PTRACE); - } - if (task) + if (task) { + allowed = ptrace_may_attach(task); put_task_struct(task); + } return allowed; } diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 921c22ad16e..6252d2fa2bf 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -120,8 +120,18 @@ int ptrace_check_attach(struct task_struct *child, int kill) static int may_attach(struct task_struct *task) { - if (!task->mm) - return -EPERM; + /* May we inspect the given task? + * This check is used both for attaching with ptrace + * and for allowing access to sensitive information in /proc. + * + * ptrace_attach denies several cases that /proc allows + * because setting up the necessary parent/child relationship + * or halting the specified task is impossible. + */ + int dumpable = 0; + /* Don't let security modules deny introspection */ + if (task == current) + return 0; if (((current->uid != task->euid) || (current->uid != task->suid) || (current->uid != task->uid) || @@ -130,7 +140,9 @@ static int may_attach(struct task_struct *task) (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE)) return -EPERM; smp_rmb(); - if (!task->mm->dumpable && !capable(CAP_SYS_PTRACE)) + if (task->mm) + dumpable = task->mm->dumpable; + if (!dumpable && !capable(CAP_SYS_PTRACE)) return -EPERM; return security_ptrace(current, task); @@ -176,6 +188,8 @@ repeat: goto repeat; } + if (!task->mm) + goto bad; /* the same process cannot be attached many times */ if (task->ptrace & PT_PTRACED) goto bad; -- cgit v1.2.3 From cc288738c9ae3c64d3c50b86604044d1f6d22941 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 26 Jun 2006 00:26:01 -0700 Subject: [PATCH] proc: Remove tasklist_lock from proc_task_readdir. This is just like my previous removal of tasklist_lock from first_tgid, and next_tgid. It simply had to wait until it was rcu safe to walk the thread list. This should be the last instance of the tasklist_lock in proc. So user processes should not be able to influence the tasklist lock hold times. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 773469703c6..6092a6e2c5a 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2224,11 +2224,12 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir) * In the case of a seek we start with the leader and walk nr * threads past it. */ -static struct task_struct *first_tid(struct task_struct *leader, int tid, int nr) +static struct task_struct *first_tid(struct task_struct *leader, + int tid, int nr) { struct task_struct *pos = NULL; - read_lock(&tasklist_lock); + rcu_read_lock(); /* Attempt to start with the pid of a thread */ if (tid && (nr > 0)) { pos = find_task_by_pid(tid); @@ -2258,7 +2259,7 @@ static struct task_struct *first_tid(struct task_struct *leader, int tid, int nr } pos = NULL; done: - read_unlock(&tasklist_lock); + rcu_read_unlock(); return pos; } @@ -2271,7 +2272,7 @@ done: static struct task_struct *next_tid(struct task_struct *start) { struct task_struct *pos; - read_lock(&tasklist_lock); + rcu_read_lock(); pos = start; if (pid_alive(start)) pos = next_thread(start); @@ -2279,7 +2280,7 @@ static struct task_struct *next_tid(struct task_struct *start) get_task_struct(pos); else pos = NULL; - read_unlock(&tasklist_lock); + rcu_read_unlock(); put_task_struct(start); return pos; } -- cgit v1.2.3 From a872ff0cb2218dc9688b990c5ccda064dc40946b Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:01 -0700 Subject: [PATCH] simplify/fix first_tid() first_tid: /* If nr exceeds the number of threads there is nothing todo */ if (nr) { if (nr >= get_nr_threads(leader)) goto done; } This is not reliable: sub-threads can exit after this check, so the 'for' loop below can overlap and proc_task_readdir() can return an already filldir'ed dirents. for (; pos && pid_alive(pos); pos = next_thread(pos)) { if (--nr > 0) continue; Off-by-one error, will return 'leader' when nr == 1. This patch tries to fix these problems and simplify the code. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 38 +++++++++++++++++--------------------- 1 file changed, 17 insertions(+), 21 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 6092a6e2c5a..5ee46d3a5ca 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2227,38 +2227,34 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir) static struct task_struct *first_tid(struct task_struct *leader, int tid, int nr) { - struct task_struct *pos = NULL; + struct task_struct *pos; rcu_read_lock(); /* Attempt to start with the pid of a thread */ if (tid && (nr > 0)) { pos = find_task_by_pid(tid); - if (pos && (pos->group_leader != leader)) - pos = NULL; - if (pos) - nr = 0; + if (pos && (pos->group_leader == leader)) + goto found; } /* If nr exceeds the number of threads there is nothing todo */ - if (nr) { - if (nr >= get_nr_threads(leader)) - goto done; - } + pos = NULL; + if (nr && nr >= get_nr_threads(leader)) + goto out; - /* If we haven't found our starting place yet start with the - * leader and walk nr threads forward. + /* If we haven't found our starting place yet start + * with the leader and walk nr threads forward. */ - if (!pos && (nr >= 0)) - pos = leader; - - for (; pos && pid_alive(pos); pos = next_thread(pos)) { - if (--nr > 0) - continue; - get_task_struct(pos); - goto done; + for (pos = leader; nr > 0; --nr) { + pos = next_thread(pos); + if (pos == leader) { + pos = NULL; + goto out; + } } - pos = NULL; -done: +found: + get_task_struct(pos); +out: rcu_read_unlock(); return pos; } -- cgit v1.2.3 From c1df7fb88a011b39ea722ac00975c5b8a803261b Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:02 -0700 Subject: [PATCH] cleanup next_tid() Try to make next_tid() a bit more readable and deletes unnecessary "pid_alive(pos)" check. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 5ee46d3a5ca..43871c85729 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2267,15 +2267,15 @@ out: */ static struct task_struct *next_tid(struct task_struct *start) { - struct task_struct *pos; + struct task_struct *pos = NULL; rcu_read_lock(); - pos = start; - if (pid_alive(start)) + if (pid_alive(start)) { pos = next_thread(start); - if (pid_alive(pos) && (pos != start->group_leader)) - get_task_struct(pos); - else - pos = NULL; + if (thread_group_leader(pos)) + pos = NULL; + else + get_task_struct(pos); + } rcu_read_unlock(); put_task_struct(start); return pos; -- cgit v1.2.3 From 42c3e03ef6b298813557cdb997bd6db619cd65a2 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 26 Jun 2006 00:26:03 -0700 Subject: [PATCH] SELinux: Add sockcreate node to procattr API Below is a patch to add a new /proc/self/attr/sockcreate A process may write a context into this interface and all subsequent sockets created will be labeled with that context. This is the same idea as the fscreate interface where a process can specify the label of a file about to be created. At this time one envisioned user of this will be xinetd. It will be able to better label sockets for the actual services. At this time all sockets take the label of the creating process, so all xinitd sockets would just be labeled the same. I tested this by creating a tcp sender and listener. The sender was able to write to this new proc file and then create sockets with the specified label. I am able to be sure the new label was used since the avc denial messages kicked out by the kernel included both the new security permission setsockcreate and all the socket denials were for the new label, not the label of the running process. Signed-off-by: Eric Paris Signed-off-by: James Morris Cc: Chris Wright Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/base.c | 6 ++++++ security/selinux/hooks.c | 22 +++++++++++++++++----- security/selinux/include/av_perm_to_string.h | 1 + security/selinux/include/av_permissions.h | 1 + security/selinux/include/objsec.h | 1 + 5 files changed, 26 insertions(+), 5 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 43871c85729..6ba7785319d 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -132,6 +132,7 @@ enum pid_directory_inos { PROC_TGID_ATTR_EXEC, PROC_TGID_ATTR_FSCREATE, PROC_TGID_ATTR_KEYCREATE, + PROC_TGID_ATTR_SOCKCREATE, #endif #ifdef CONFIG_AUDITSYSCALL PROC_TGID_LOGINUID, @@ -174,6 +175,7 @@ enum pid_directory_inos { PROC_TID_ATTR_EXEC, PROC_TID_ATTR_FSCREATE, PROC_TID_ATTR_KEYCREATE, + PROC_TID_ATTR_SOCKCREATE, #endif #ifdef CONFIG_AUDITSYSCALL PROC_TID_LOGINUID, @@ -291,6 +293,7 @@ static struct pid_entry tgid_attr_stuff[] = { E(PROC_TGID_ATTR_EXEC, "exec", S_IFREG|S_IRUGO|S_IWUGO), E(PROC_TGID_ATTR_FSCREATE, "fscreate", S_IFREG|S_IRUGO|S_IWUGO), E(PROC_TGID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO), + E(PROC_TGID_ATTR_SOCKCREATE, "sockcreate", S_IFREG|S_IRUGO|S_IWUGO), {0,0,NULL,0} }; static struct pid_entry tid_attr_stuff[] = { @@ -299,6 +302,7 @@ static struct pid_entry tid_attr_stuff[] = { E(PROC_TID_ATTR_EXEC, "exec", S_IFREG|S_IRUGO|S_IWUGO), E(PROC_TID_ATTR_FSCREATE, "fscreate", S_IFREG|S_IRUGO|S_IWUGO), E(PROC_TID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO), + E(PROC_TID_ATTR_SOCKCREATE, "sockcreate", S_IFREG|S_IRUGO|S_IWUGO), {0,0,NULL,0} }; #endif @@ -1764,6 +1768,8 @@ static struct dentry *proc_pident_lookup(struct inode *dir, case PROC_TGID_ATTR_FSCREATE: case PROC_TID_ATTR_KEYCREATE: case PROC_TGID_ATTR_KEYCREATE: + case PROC_TID_ATTR_SOCKCREATE: + case PROC_TGID_ATTR_SOCKCREATE: inode->i_fop = &proc_pid_attr_operations; break; #endif diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 0d8b27513bd..ac7f2b2e392 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1532,8 +1532,9 @@ static int selinux_bprm_set_security(struct linux_binprm *bprm) /* Default to the current task SID. */ bsec->sid = tsec->sid; - /* Reset create SID on execve. */ + /* Reset create and sockcreate SID on execve. */ tsec->create_sid = 0; + tsec->sockcreate_sid = 0; if (tsec->exec_sid) { newsid = tsec->exec_sid; @@ -2585,9 +2586,10 @@ static int selinux_task_alloc_security(struct task_struct *tsk) tsec2->osid = tsec1->osid; tsec2->sid = tsec1->sid; - /* Retain the exec and create SIDs across fork */ + /* Retain the exec, create, and sock SIDs across fork */ tsec2->exec_sid = tsec1->exec_sid; tsec2->create_sid = tsec1->create_sid; + tsec2->sockcreate_sid = tsec1->sockcreate_sid; /* Retain ptracer SID across fork, if any. This will be reset by the ptrace hook upon any @@ -2937,12 +2939,14 @@ static int selinux_socket_create(int family, int type, { int err = 0; struct task_security_struct *tsec; + u32 newsid; if (kern) goto out; tsec = current->security; - err = avc_has_perm(tsec->sid, tsec->sid, + newsid = tsec->sockcreate_sid ? : tsec->sid; + err = avc_has_perm(tsec->sid, newsid, socket_type_to_security_class(family, type, protocol), SOCKET__CREATE, NULL); @@ -2955,12 +2959,14 @@ static void selinux_socket_post_create(struct socket *sock, int family, { struct inode_security_struct *isec; struct task_security_struct *tsec; + u32 newsid; isec = SOCK_INODE(sock)->i_security; tsec = current->security; + newsid = tsec->sockcreate_sid ? : tsec->sid; isec->sclass = socket_type_to_security_class(family, type, protocol); - isec->sid = kern ? SECINITSID_KERNEL : tsec->sid; + isec->sid = kern ? SECINITSID_KERNEL : newsid; isec->initialized = 1; return; @@ -4163,6 +4169,8 @@ static int selinux_getprocattr(struct task_struct *p, sid = tsec->create_sid; else if (!strcmp(name, "keycreate")) sid = tsec->keycreate_sid; + else if (!strcmp(name, "sockcreate")) + sid = tsec->sockcreate_sid; else return -EINVAL; @@ -4197,6 +4205,8 @@ static int selinux_setprocattr(struct task_struct *p, error = task_has_perm(current, p, PROCESS__SETFSCREATE); else if (!strcmp(name, "keycreate")) error = task_has_perm(current, p, PROCESS__SETKEYCREATE); + else if (!strcmp(name, "sockcreate")) + error = task_has_perm(current, p, PROCESS__SETSOCKCREATE); else if (!strcmp(name, "current")) error = task_has_perm(current, p, PROCESS__SETCURRENT); else @@ -4231,7 +4241,9 @@ static int selinux_setprocattr(struct task_struct *p, if (error) return error; tsec->keycreate_sid = sid; - } else if (!strcmp(name, "current")) { + } else if (!strcmp(name, "sockcreate")) + tsec->sockcreate_sid = sid; + else if (!strcmp(name, "current")) { struct av_decision avd; if (sid == 0) diff --git a/security/selinux/include/av_perm_to_string.h b/security/selinux/include/av_perm_to_string.h index e777578ccd9..7c9b5838083 100644 --- a/security/selinux/include/av_perm_to_string.h +++ b/security/selinux/include/av_perm_to_string.h @@ -73,6 +73,7 @@ S_(SECCLASS_PROCESS, PROCESS__EXECSTACK, "execstack") S_(SECCLASS_PROCESS, PROCESS__EXECHEAP, "execheap") S_(SECCLASS_PROCESS, PROCESS__SETKEYCREATE, "setkeycreate") + S_(SECCLASS_PROCESS, PROCESS__SETSOCKCREATE, "setsockcreate") S_(SECCLASS_MSGQ, MSGQ__ENQUEUE, "enqueue") S_(SECCLASS_MSG, MSG__SEND, "send") S_(SECCLASS_MSG, MSG__RECEIVE, "receive") diff --git a/security/selinux/include/av_permissions.h b/security/selinux/include/av_permissions.h index 1e1678023b6..69fd4b48202 100644 --- a/security/selinux/include/av_permissions.h +++ b/security/selinux/include/av_permissions.h @@ -468,6 +468,7 @@ #define PROCESS__EXECSTACK 0x04000000UL #define PROCESS__EXECHEAP 0x08000000UL #define PROCESS__SETKEYCREATE 0x10000000UL +#define PROCESS__SETSOCKCREATE 0x20000000UL #define IPC__CREATE 0x00000001UL #define IPC__DESTROY 0x00000002UL diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h index 191b3e4484c..cf54a304169 100644 --- a/security/selinux/include/objsec.h +++ b/security/selinux/include/objsec.h @@ -33,6 +33,7 @@ struct task_security_struct { u32 exec_sid; /* exec SID */ u32 create_sid; /* fscreate SID */ u32 keycreate_sid; /* keycreate SID */ + u32 sockcreate_sid; /* fscreate SID */ u32 ptrace_sid; /* SID of ptrace parent */ }; -- cgit v1.2.3 From 2ceb8693ef63ae3d154ce1a05d275f2bb20a5e4c Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:04 -0700 Subject: [PATCH] de_thread: fix lockless do_each_thread We should keep the value of old_leader->tasks.next in de_thread, otherwise we can't do for_each_process/do_each_thread without tasklist_lock held. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index 8c5196087f3..fffea1eef8d 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -707,7 +707,7 @@ static int de_thread(struct task_struct *tsk) attach_pid(current, PIDTYPE_PID, current->pid); attach_pid(current, PIDTYPE_PGID, current->signal->pgrp); attach_pid(current, PIDTYPE_SID, current->signal->session); - list_add_tail_rcu(¤t->tasks, &init_task.tasks); + list_replace_rcu(&leader->tasks, ¤t->tasks); current->group_leader = current; leader->group_leader = current; @@ -715,7 +715,6 @@ static int de_thread(struct task_struct *tsk) /* Reduce leader to a thread */ detach_pid(leader, PIDTYPE_PGID); detach_pid(leader, PIDTYPE_SID); - list_del_init(&leader->tasks); current->exit_signal = SIGCHLD; -- cgit v1.2.3 From aceecc041217b35df753d1ed6e25bd17c0c558d8 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:05 -0700 Subject: [PATCH] coredump: optimize ->mm users traversal zap_threads() iterates over all threads to find those ones which share current->mm. All threads in the thread group share the same ->mm, so we can skip entire thread group if it has another ->mm. This patch shifts the killing of thread group into the newly added zap_process() function. This looks as unnecessary complication, but it is used in further patches. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Acked-by: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 36 ++++++++++++++++++++++++++---------- 1 file changed, 26 insertions(+), 10 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index fffea1eef8d..80fe7bcfa09 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1368,6 +1368,22 @@ static void format_corename(char *corename, const char *pattern, long signr) *out_ptr = 0; } +static void zap_process(struct task_struct *start, int *ptraced) +{ + struct task_struct *t; + + t = start; + do { + if (t != current && t->mm) { + t->mm->core_waiters++; + force_sig_specific(SIGKILL, t); + if (unlikely(t->ptrace) && + unlikely(t->parent->mm == t->mm)) + *ptraced = 1; + } + } while ((t = next_thread(t)) != start); +} + static void zap_threads (struct mm_struct *mm) { struct task_struct *g, *p; @@ -1385,16 +1401,16 @@ static void zap_threads (struct mm_struct *mm) } read_lock(&tasklist_lock); - do_each_thread(g,p) - if (mm == p->mm && p != tsk) { - force_sig_specific(SIGKILL, p); - mm->core_waiters++; - if (unlikely(p->ptrace) && - unlikely(p->parent->mm == mm)) - traced = 1; - } - while_each_thread(g,p); - + for_each_process(g) { + p = g; + do { + if (p->mm) { + if (p->mm == mm) + zap_process(p, &traced); + break; + } + } while ((p = next_thread(p)) != g); + } read_unlock(&tasklist_lock); if (unlikely(traced)) { -- cgit v1.2.3 From 281de339ceb822ca6c04d4373ecb9a45c1890ce4 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:06 -0700 Subject: [PATCH] coredump: speedup SIGKILL sending With this patch a thread group is killed atomically under ->siglock. This is faster because we can use sigaddset() instead of force_sig_info() and this is used in further patches. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Acked-by: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/fs/exec.c b/fs/exec.c index 80fe7bcfa09..a5c51646d1a 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1371,17 +1371,24 @@ static void format_corename(char *corename, const char *pattern, long signr) static void zap_process(struct task_struct *start, int *ptraced) { struct task_struct *t; + unsigned long flags; + + spin_lock_irqsave(&start->sighand->siglock, flags); t = start; do { if (t != current && t->mm) { t->mm->core_waiters++; - force_sig_specific(SIGKILL, t); + sigaddset(&t->pending.signal, SIGKILL); + signal_wake_up(t, 1); + if (unlikely(t->ptrace) && unlikely(t->parent->mm == t->mm)) *ptraced = 1; } } while ((t = next_thread(t)) != start); + + spin_unlock_irqrestore(&start->sighand->siglock, flags); } static void zap_threads (struct mm_struct *mm) -- cgit v1.2.3 From d5f70c00ad24cd1158d3678b44ff969b4c971d49 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:07 -0700 Subject: [PATCH] coredump: kill ptrace related stuff With this patch zap_process() sets SIGNAL_GROUP_EXIT while sending SIGKILL to the thread group. This means that a TASK_TRACED task 1. Will be awakened by signal_wake_up(1) 2. Can't sleep again via ptrace_notify() 3. Can't go to do_signal_stop() after return from ptrace_stop() in get_signal_to_deliver() So we can remove all ptrace related stuff from coredump path. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 30 +++++------------------------- include/linux/ptrace.h | 1 - kernel/ptrace.c | 3 ++- kernel/signal.c | 35 ++++++++++++++++++++++++++++++----- 4 files changed, 37 insertions(+), 32 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index a5c51646d1a..b58ba7d127e 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1368,12 +1368,14 @@ static void format_corename(char *corename, const char *pattern, long signr) *out_ptr = 0; } -static void zap_process(struct task_struct *start, int *ptraced) +static void zap_process(struct task_struct *start) { struct task_struct *t; unsigned long flags; spin_lock_irqsave(&start->sighand->siglock, flags); + start->signal->flags = SIGNAL_GROUP_EXIT; + start->signal->group_stop_count = 0; t = start; do { @@ -1381,22 +1383,17 @@ static void zap_process(struct task_struct *start, int *ptraced) t->mm->core_waiters++; sigaddset(&t->pending.signal, SIGKILL); signal_wake_up(t, 1); - - if (unlikely(t->ptrace) && - unlikely(t->parent->mm == t->mm)) - *ptraced = 1; } } while ((t = next_thread(t)) != start); spin_unlock_irqrestore(&start->sighand->siglock, flags); } -static void zap_threads (struct mm_struct *mm) +static void zap_threads(struct mm_struct *mm) { struct task_struct *g, *p; struct task_struct *tsk = current; struct completion *vfork_done = tsk->vfork_done; - int traced = 0; /* * Make sure nobody is waiting for us to release the VM, @@ -1413,29 +1410,12 @@ static void zap_threads (struct mm_struct *mm) do { if (p->mm) { if (p->mm == mm) - zap_process(p, &traced); + zap_process(p); break; } } while ((p = next_thread(p)) != g); } read_unlock(&tasklist_lock); - - if (unlikely(traced)) { - /* - * We are zapping a thread and the thread it ptraces. - * If the tracee went into a ptrace stop for exit tracing, - * we could deadlock since the tracer is waiting for this - * coredump to finish. Detach them so they can both die. - */ - write_lock_irq(&tasklist_lock); - do_each_thread(g,p) { - if (mm == p->mm && p != tsk && - p->ptrace && p->parent->mm == mm) { - __ptrace_detach(p, 0); - } - } while_each_thread(g,p); - write_unlock_irq(&tasklist_lock); - } } static void coredump_wait(struct mm_struct *mm) diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index ee918bc6e18..8b2749a259d 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -88,7 +88,6 @@ extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __us extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len); extern int ptrace_attach(struct task_struct *tsk); extern int ptrace_detach(struct task_struct *, unsigned int); -extern void __ptrace_detach(struct task_struct *, unsigned int); extern void ptrace_disable(struct task_struct *); extern int ptrace_check_attach(struct task_struct *task, int kill); extern int ptrace_request(struct task_struct *child, long request, long addr, long data); diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 6252d2fa2bf..335c5b932e1 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -214,7 +214,7 @@ out: return retval; } -void __ptrace_detach(struct task_struct *child, unsigned int data) +static inline void __ptrace_detach(struct task_struct *child, unsigned int data) { child->exit_code = data; /* .. re-parent .. */ @@ -233,6 +233,7 @@ int ptrace_detach(struct task_struct *child, unsigned int data) ptrace_disable(child); write_lock_irq(&tasklist_lock); + /* protect against de_thread()->release_task() */ if (child->ptrace) __ptrace_detach(child, data); write_unlock_irq(&tasklist_lock); diff --git a/kernel/signal.c b/kernel/signal.c index 1b3c921737e..52adf53929f 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1531,6 +1531,35 @@ static void do_notify_parent_cldstop(struct task_struct *tsk, int why) spin_unlock_irqrestore(&sighand->siglock, flags); } +static inline int may_ptrace_stop(void) +{ + if (!likely(current->ptrace & PT_PTRACED)) + return 0; + + if (unlikely(current->parent == current->real_parent && + (current->ptrace & PT_ATTACHED))) + return 0; + + if (unlikely(current->signal == current->parent->signal) && + unlikely(current->signal->flags & SIGNAL_GROUP_EXIT)) + return 0; + + /* + * Are we in the middle of do_coredump? + * If so and our tracer is also part of the coredump stopping + * is a deadlock situation, and pointless because our tracer + * is dead so don't allow us to stop. + * If SIGKILL was already sent before the caller unlocked + * ->siglock we must see ->core_waiters != 0. Otherwise it + * is safe to enter schedule(). + */ + if (unlikely(current->mm->core_waiters) && + unlikely(current->mm == current->parent->mm)) + return 0; + + return 1; +} + /* * This must be called with current->sighand->siglock held. * @@ -1559,11 +1588,7 @@ static void ptrace_stop(int exit_code, int nostop_code, siginfo_t *info) spin_unlock_irq(¤t->sighand->siglock); try_to_freeze(); read_lock(&tasklist_lock); - if (likely(current->ptrace & PT_PTRACED) && - likely(current->parent != current->real_parent || - !(current->ptrace & PT_ATTACHED)) && - (likely(current->parent->signal != current->signal) || - !unlikely(current->signal->flags & SIGNAL_GROUP_EXIT))) { + if (may_ptrace_stop()) { do_notify_parent_cldstop(current, CLD_TRAPPED); read_unlock(&tasklist_lock); schedule(); -- cgit v1.2.3 From 7b1c6154fa8bb937e0b1b4f2adbb315d70270f10 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:08 -0700 Subject: [PATCH] coredump: don't take tasklist_lock This patch removes tasklist_lock from zap_threads(). This is safe wrt: do_exit: The caller holds mm->mmap_sem. This means that task which shares the same ->mm can't pass exit_mm(), so it can't be unhashed from init_task.tasks or ->thread_group lists. fork: None of sub-threads can fork after zap_process(leader). All processes which were created before this point should be visible to zap_threads() because copy_process() adds the new process to the tail of init_task.tasks list, and ->siglock lock/unlock provides a memory barrier. de_thread: It does list_replace_rcu(&leader->tasks, ¤t->tasks). So zap_threads() will see either old or new leader, it does not matter. However, it can change p->sighand, so we should use lock_task_sighand() in zap_process(). Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index b58ba7d127e..49fa0127a33 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1373,7 +1373,11 @@ static void zap_process(struct task_struct *start) struct task_struct *t; unsigned long flags; - spin_lock_irqsave(&start->sighand->siglock, flags); + /* + * start->sighand can't disappear, but may be + * changed by de_thread() + */ + lock_task_sighand(start, &flags); start->signal->flags = SIGNAL_GROUP_EXIT; start->signal->group_stop_count = 0; @@ -1386,7 +1390,7 @@ static void zap_process(struct task_struct *start) } } while ((t = next_thread(t)) != start); - spin_unlock_irqrestore(&start->sighand->siglock, flags); + unlock_task_sighand(start, &flags); } static void zap_threads(struct mm_struct *mm) @@ -1404,7 +1408,7 @@ static void zap_threads(struct mm_struct *mm) complete(vfork_done); } - read_lock(&tasklist_lock); + rcu_read_lock(); for_each_process(g) { p = g; do { @@ -1415,7 +1419,7 @@ static void zap_threads(struct mm_struct *mm) } } while ((p = next_thread(p)) != g); } - read_unlock(&tasklist_lock); + rcu_read_unlock(); } static void coredump_wait(struct mm_struct *mm) -- cgit v1.2.3 From dcf560c59330945a231d5e52f95dfedde4e32c9d Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:08 -0700 Subject: [PATCH] coredump: some code relocations This is a preparation for the next patch. No functional changes. Basically, this patch moves '->flags & SIGNAL_GROUP_EXIT' check into zap_threads(), and 'complete(vfork_done)' into coredump_wait outside of ->mmap_sem protected area. Signed-off-by: Oleg Nesterov Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 70 ++++++++++++++++++++++++++++++++++++--------------------------- 1 file changed, 40 insertions(+), 30 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index 49fa0127a33..8c8f2894949 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1393,20 +1393,22 @@ static void zap_process(struct task_struct *start) unlock_task_sighand(start, &flags); } -static void zap_threads(struct mm_struct *mm) +static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm, + int exit_code) { struct task_struct *g, *p; - struct task_struct *tsk = current; - struct completion *vfork_done = tsk->vfork_done; - - /* - * Make sure nobody is waiting for us to release the VM, - * otherwise we can deadlock when we wait on each other - */ - if (vfork_done) { - tsk->vfork_done = NULL; - complete(vfork_done); + int err = -EAGAIN; + + spin_lock_irq(&tsk->sighand->siglock); + if (!(tsk->signal->flags & SIGNAL_GROUP_EXIT)) { + tsk->signal->flags = SIGNAL_GROUP_EXIT; + tsk->signal->group_exit_code = exit_code; + tsk->signal->group_stop_count = 0; + err = 0; } + spin_unlock_irq(&tsk->sighand->siglock); + if (err) + return err; rcu_read_lock(); for_each_process(g) { @@ -1420,22 +1422,43 @@ static void zap_threads(struct mm_struct *mm) } while ((p = next_thread(p)) != g); } rcu_read_unlock(); + + return mm->core_waiters; } -static void coredump_wait(struct mm_struct *mm) +static int coredump_wait(int exit_code) { - DECLARE_COMPLETION(startup_done); + struct task_struct *tsk = current; + struct mm_struct *mm = tsk->mm; + struct completion startup_done; + struct completion *vfork_done; int core_waiters; + init_completion(&mm->core_done); + init_completion(&startup_done); mm->core_startup_done = &startup_done; - zap_threads(mm); - core_waiters = mm->core_waiters; + core_waiters = zap_threads(tsk, mm, exit_code); up_write(&mm->mmap_sem); + if (unlikely(core_waiters < 0)) + goto fail; + + /* + * Make sure nobody is waiting for us to release the VM, + * otherwise we can deadlock when we wait on each other + */ + vfork_done = tsk->vfork_done; + if (vfork_done) { + tsk->vfork_done = NULL; + complete(vfork_done); + } + if (core_waiters) wait_for_completion(&startup_done); +fail: BUG_ON(mm->core_waiters); + return core_waiters; } int do_coredump(long signr, int exit_code, struct pt_regs * regs) @@ -1469,22 +1492,9 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs) } mm->dumpable = 0; - retval = -EAGAIN; - spin_lock_irq(¤t->sighand->siglock); - if (!(current->signal->flags & SIGNAL_GROUP_EXIT)) { - current->signal->flags = SIGNAL_GROUP_EXIT; - current->signal->group_exit_code = exit_code; - current->signal->group_stop_count = 0; - retval = 0; - } - spin_unlock_irq(¤t->sighand->siglock); - if (retval) { - up_write(&mm->mmap_sem); + retval = coredump_wait(exit_code); + if (retval < 0) goto fail; - } - - init_completion(&mm->core_done); - coredump_wait(mm); /* * Clear any false indication of pending signals that might -- cgit v1.2.3 From 5debfa6da5b06954bc79fe8deed0d1062c58dcec Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:09 -0700 Subject: [PATCH] coredump: shutdown current process first This patch optimizes zap_threads() for the case when there are no ->mm users except the current's thread group. In that case we can avoid 'for_each_process()' loop. It also adds a useful invariant: SIGNAL_GROUP_EXIT (if checked under ->siglock) always implies that all threads (except may be current) have pending SIGKILL. Signed-off-by: Oleg Nesterov Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index 8c8f2894949..c8494f513ea 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1371,13 +1371,7 @@ static void format_corename(char *corename, const char *pattern, long signr) static void zap_process(struct task_struct *start) { struct task_struct *t; - unsigned long flags; - /* - * start->sighand can't disappear, but may be - * changed by de_thread() - */ - lock_task_sighand(start, &flags); start->signal->flags = SIGNAL_GROUP_EXIT; start->signal->group_stop_count = 0; @@ -1389,40 +1383,51 @@ static void zap_process(struct task_struct *start) signal_wake_up(t, 1); } } while ((t = next_thread(t)) != start); - - unlock_task_sighand(start, &flags); } static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm, int exit_code) { struct task_struct *g, *p; + unsigned long flags; int err = -EAGAIN; spin_lock_irq(&tsk->sighand->siglock); if (!(tsk->signal->flags & SIGNAL_GROUP_EXIT)) { - tsk->signal->flags = SIGNAL_GROUP_EXIT; tsk->signal->group_exit_code = exit_code; - tsk->signal->group_stop_count = 0; + zap_process(tsk); err = 0; } spin_unlock_irq(&tsk->sighand->siglock); if (err) return err; + if (atomic_read(&mm->mm_users) == mm->core_waiters + 1) + goto done; + rcu_read_lock(); for_each_process(g) { + if (g == tsk->group_leader) + continue; + p = g; do { if (p->mm) { - if (p->mm == mm) + if (p->mm == mm) { + /* + * p->sighand can't disappear, but + * may be changed by de_thread() + */ + lock_task_sighand(p, &flags); zap_process(p); + unlock_task_sighand(p, &flags); + } break; } } while ((p = next_thread(p)) != g); } rcu_read_unlock(); - +done: return mm->core_waiters; } -- cgit v1.2.3 From cf2dfbfbf4c5cb489ea12defd85a484307b955b8 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 26 Jun 2006 00:26:10 -0700 Subject: [PATCH] coredump: copy_process: don't check SIGNAL_GROUP_EXIT After the previous patch SIGNAL_GROUP_EXIT implies a pending SIGKILL, we can remove this check from copy_process() because we already checked !signal_pending(). Signed-off-by: Oleg Nesterov Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/fork.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index 79e91046f36..9b4e54ef022 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1156,18 +1156,6 @@ static task_t *copy_process(unsigned long clone_flags, } if (clone_flags & CLONE_THREAD) { - /* - * Important: if an exit-all has been started then - * do not create this new thread - the whole thread - * group is supposed to exit anyway. - */ - if (current->signal->flags & SIGNAL_GROUP_EXIT) { - spin_unlock(¤t->sighand->siglock); - write_unlock_irq(&tasklist_lock); - retval = -EAGAIN; - goto bad_fork_cleanup_namespace; - } - p->group_leader = current->group_leader; list_add_tail_rcu(&p->thread_group, &p->group_leader->thread_group); -- cgit v1.2.3 From b5cdccf841d7d29fb96e03de5a64ed395e0fde61 Mon Sep 17 00:00:00 2001 From: Tobias Oed Date: Mon, 26 Jun 2006 00:26:11 -0700 Subject: [PATCH] ide: pdc202xx_old.c: remove unneeded tuneproc() call Remove a call to hwif->tuneproc() on the error path of config_chipset_for_dma(), as its single caller (pdc202xx_config_drive_xfer_rate()) will do the call in that case. Signed-off-by: Tobias Oed Cc: Bartlomiej Zolnierkiewicz Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/pci/pdc202xx_old.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index 7ce5bf78368..c6e87c5f1dc 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -370,7 +370,6 @@ chipset_is_set: if (!(speed)) { /* restore original pci-config space */ pci_write_config_dword(dev, drive_pci, drive_conf); - hwif->tuneproc(drive, 5); return 0; } -- cgit v1.2.3 From 4fb0f76d8cf4f7a3ffc36dd5e1bc8ca977b68824 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 26 Jun 2006 00:26:12 -0700 Subject: [PATCH] Fix IDE locking error This bit us a few kernels ago, and for some reason never made it's way upstream. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=144743 Kernel panic - not syncing: drivers/ide/pci/piix.c:231: spin_lock(drivers/ide/ide.c:c03cef28) already locked by driver/ide/ide-iops.c/1153. Signed-off-by: Dave Jones Cc: Bartlomiej Zolnierkiewicz Cc: Dave Jones Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/pci/piix.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c index e9b83e1a302..7fac6f57b5d 100644 --- a/drivers/ide/pci/piix.c +++ b/drivers/ide/pci/piix.c @@ -222,6 +222,8 @@ static void piix_tune_drive (ide_drive_t *drive, u8 pio) unsigned long flags; u16 master_data; u8 slave_data; + static DEFINE_SPINLOCK(tune_lock); + /* ISP RTC */ u8 timings[][2] = { { 0, 0 }, { 0, 0 }, @@ -230,7 +232,13 @@ static void piix_tune_drive (ide_drive_t *drive, u8 pio) { 2, 3 }, }; pio = ide_get_best_pio_mode(drive, pio, 5, NULL); - spin_lock_irqsave(&ide_lock, flags); + + /* + * Master vs slave is synchronized above us but the slave register is + * shared by the two hwifs so the corner case of two slave timeouts in + * parallel must be locked. + */ + spin_lock_irqsave(&tune_lock, flags); pci_read_config_word(dev, master_port, &master_data); if (is_slave) { master_data = master_data | 0x4000; @@ -250,7 +258,7 @@ static void piix_tune_drive (ide_drive_t *drive, u8 pio) pci_write_config_word(dev, master_port, master_data); if (is_slave) pci_write_config_byte(dev, slave_port, slave_data); - spin_unlock_irqrestore(&ide_lock, flags); + spin_unlock_irqrestore(&tune_lock, flags); } /** -- cgit v1.2.3 From 178184b60979992508130741f16499c360bc9c9a Mon Sep 17 00:00:00 2001 From: Al Boldi Date: Mon, 26 Jun 2006 00:26:13 -0700 Subject: [PATCH] ide-io: increase timeout value to allow for slave wakeup During an STR resume cycle, the ide master disk times-out when there is also a slave present (especially CD). Increasing the timeout in ide-io from 10,000 to 100,000 fixes this problem. Acked-by: Alan Cox Cc: Bartlomiej Zolnierkiewicz Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/ide-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 622a55c72f0..d2428cef159 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -959,7 +959,7 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq) printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name); SELECT_DRIVE(drive); HWIF(drive)->OUTB(8, HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]); - rc = ide_wait_not_busy(HWIF(drive), 10000); + rc = ide_wait_not_busy(HWIF(drive), 100000); if (rc) printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name); } -- cgit v1.2.3 From 17c1033d331a430ce631805e15215e63b4cce764 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 26 Jun 2006 00:26:15 -0700 Subject: [PATCH] ide: actually honor drive's minimum PIO/DMA cycle times The function ide_timing_compute() fails to *actually* take drive's specified minimum PIO/DMA cycle times into account -- when doing this, it calls ide_timing_merge() on the 'struct ide_timing' argument which contains garbage at the moment, and then ultimately destroys the read cycle time by quantizing the ide_timing[] entry, instead of copying from that entry to the argument structure, and only then doing a merge/quantize. Cc: Bartlomiej Zolnierkiewicz Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/ide-timing.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h index 2fcfac6e967..c0864b1e922 100644 --- a/drivers/ide/ide-timing.h +++ b/drivers/ide/ide-timing.h @@ -219,6 +219,12 @@ static int ide_timing_compute(ide_drive_t *drive, short speed, struct ide_timing if (!(s = ide_timing_find_mode(speed))) return -EINVAL; +/* + * Copy the timing from the table. + */ + + *t = *s; + /* * If the drive is an EIDE drive, it can tell us it needs extended * PIO/MWDMA cycle timing. @@ -247,7 +253,7 @@ static int ide_timing_compute(ide_drive_t *drive, short speed, struct ide_timing * Convert the timing to bus clock counts. */ - ide_timing_quantize(s, t, T, UT); + ide_timing_quantize(t, t, T, UT); /* * Even in DMA/UDMA modes we still use PIO access for IDENTIFY, S.M.A.R.T -- cgit v1.2.3 From 8b6ebe016bf68fc9b3f3f2ce79c1918b0808481c Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 26 Jun 2006 00:26:16 -0700 Subject: [PATCH] ide: pdc202xx_old: remove the obsolete busproc Remove the busproc from pdc202xx_old.c because: - it handles the obsolete HDIO_TRISTATE_HWIF ioctl instead of the modern HDIO_SET_BUSSTATE, so treats its argument wrong; - I don't think that tristating both channels is good idea (probably can't be done otherwise since there seems to be only single bit controlling this). Signed-off-by: Sergei Shtylyov Cc: Bartlomiej Zolnierkiewicz Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/pci/pdc202xx_old.c | 29 +---------------------------- 1 file changed, 1 insertion(+), 28 deletions(-) diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index c6e87c5f1dc..4cb15644941 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -549,31 +549,6 @@ static void pdc202xx_reset (ide_drive_t *drive) #endif } -/* - * Since SUN Cobalt is attempting to do this operation, I should disclose - * this has been a long time ago Thu Jul 27 16:40:57 2000 was the patch date - * HOTSWAP ATA Infrastructure. - */ -static int pdc202xx_tristate (ide_drive_t * drive, int state) -{ - ide_hwif_t *hwif = HWIF(drive); -// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel)); - unsigned long high_16 = hwif->dma_master; - u8 sc1f = hwif->INB(high_16|0x001f); - - if (!hwif) - return -EINVAL; - -// hwif->bus_state = state; - - if (state) { - hwif->OUTB(sc1f | 0x08, (high_16|0x001f)); - } else { - hwif->OUTB(sc1f & ~0x08, (high_16|0x001f)); - } - return 0; -} - static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev, const char *name) { if (dev->resource[PCI_ROM_RESOURCE].start) { @@ -623,10 +598,8 @@ static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif) hwif->tuneproc = &config_chipset_for_pio; hwif->quirkproc = &pdc202xx_quirkproc; - if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) { - hwif->busproc = &pdc202xx_tristate; + if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) hwif->resetproc = &pdc202xx_reset; - } hwif->speedproc = &pdc202xx_tune_chipset; -- cgit v1.2.3 From 3d1c1cc962cebaae6a70fd89a0adb29ad10a2a12 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 26 Jun 2006 00:26:17 -0700 Subject: [PATCH] fix IDE deadlock in error reporting code Michal Piotrowski reported the following validator assert: hdd: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error } hdd: set_drive_speed_status: error=0xb4 { AbortedCommand LastFailedSense=0x0b } ============================ [ BUG: illegal lock usage! ] ---------------------------- illegal {in-hardirq-W} -> {hardirq-on-W} usage. hdparm/1821 [HC0[0]:SC0[0]:HE1:SE1] takes: (ide_lock){++..}, at: [] ide_dump_opcode+0x13/0x9b [...] stack backtrace: [] show_trace+0x1b/0x20 [] dump_stack+0x1f/0x24 [] print_usage_bug+0x1a5/0x1b1 [] mark_lock+0x2ca/0x4f7 [] __lockdep_acquire+0x47e/0xaa4 [] lockdep_acquire+0x67/0x7f [] _spin_lock+0x24/0x32 [] ide_dump_opcode+0x13/0x9b [] ide_dump_status+0x4a6/0x4cc [] ide_config_drive_speed+0x32a/0x33a [] piix_tune_chipset+0x2ed/0x2f8 [] piix_config_drive_xfer_rate+0x61/0xb5 [] set_using_dma+0x2f/0x60 [] ide_write_setting+0x4a/0xc3 [] generic_ide_ioctl+0x8a/0x47f [] idecd_ioctl+0xfd/0x133 [ide_cd] [] blkdev_driver_ioctl+0x4b/0x5f [] blkdev_ioctl+0x770/0x7bd [] block_ioctl+0x1f/0x21 [] do_ioctl+0x27/0x6e [] vfs_ioctl+0x26a/0x280 [] sys_ioctl+0x4d/0x7e [] sysenter_past_esp+0x63/0xa1 in ide_dump_opcode() takes the ide_lock in an irq-unsafe manner, i.e. this function expects to be called with irqs disabled. But ide_dump_ata[pi]_status() doesnt do that - it enables interrupts specifically. That is a no-no - what guarantees that another IDE port couldnt generate an IDE interrupt while we are dumping this error? The fix is to turn the irq-enabling in these functions into irq-disabling. Signed-off-by: Ingo Molnar Cc: Michal Piotrowski Cc: Alan Cox Cc: Bartlomiej Zolnierkiewicz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/ide-lib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index 16a143133f9..7ddb1182873 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -485,7 +485,7 @@ static u8 ide_dump_ata_status(ide_drive_t *drive, const char *msg, u8 stat) unsigned long flags; u8 err = 0; - local_irq_set(flags); + local_irq_save(flags); printk("%s: %s: status=0x%02x { ", drive->name, msg, stat); if (stat & BUSY_STAT) printk("Busy "); @@ -567,7 +567,7 @@ static u8 ide_dump_atapi_status(ide_drive_t *drive, const char *msg, u8 stat) status.all = stat; error.all = 0; - local_irq_set(flags); + local_irq_save(flags); printk("%s: %s: status=0x%02x { ", drive->name, msg, stat); if (status.b.bsy) printk("Busy "); -- cgit v1.2.3 From fb4ece268bfebaa9f8084b3aa854b56867935724 Mon Sep 17 00:00:00 2001 From: Tobias Oed Date: Mon, 26 Jun 2006 00:26:18 -0700 Subject: [PATCH] pdc202xx_old depends on CONFIG_BLK_DEV_IDEDMA The driver pdc202xx_old requires CONFIG_BLK_DEV_IDEDMA, so it's always defined Signed-off-by: Tobias Oed Acked-by: Alan Cox Cc: Bartlomiej Zolnierkiewicz Cc: Sergei Shtylyov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/pci/pdc202xx_old.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index 4cb15644941..e4d87170b37 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -491,12 +491,8 @@ static int pdc202xx_ide_dma_timeout(ide_drive_t *drive) static void pdc202xx_reset_host (ide_hwif_t *hwif) { -#ifdef CONFIG_BLK_DEV_IDEDMA // unsigned long high_16 = hwif->dma_base - (8*(hwif->channel)); unsigned long high_16 = hwif->dma_master; -#else /* !CONFIG_BLK_DEV_IDEDMA */ - unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4); -#endif /* CONFIG_BLK_DEV_IDEDMA */ u8 udma_speed_flag = hwif->INB(high_16|0x001f); hwif->OUTB((udma_speed_flag | 0x10), (high_16|0x001f)); -- cgit v1.2.3 From 1ba70a019599b4fa3e091c6dbc4a04e2c607eea3 Mon Sep 17 00:00:00 2001 From: Tobias Oed Date: Mon, 26 Jun 2006 00:26:19 -0700 Subject: [PATCH] Remove code that has long been commented out from pdc20265_old Signed-off-by: Tobias Oed Acked-by: Alan Cox Cc: Bartlomiej Zolnierkiewicz Cc: Sergei Shtylyov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/pci/pdc202xx_old.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index e4d87170b37..22d17548ecd 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -414,8 +414,6 @@ static void pdc202xx_old_ide_dma_start(ide_drive_t *drive) if (drive->addressing == 1) { struct request *rq = HWGROUP(drive)->rq; ide_hwif_t *hwif = HWIF(drive); -// struct pci_dev *dev = hwif->pci_dev; -// unsgned long high_16 = pci_resource_start(dev, 4); unsigned long high_16 = hwif->dma_master; unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20); u32 word_count = 0; @@ -435,7 +433,6 @@ static int pdc202xx_old_ide_dma_end(ide_drive_t *drive) { if (drive->addressing == 1) { ide_hwif_t *hwif = HWIF(drive); -// unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4); unsigned long high_16 = hwif->dma_master; unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20); u8 clock = 0; @@ -452,8 +449,6 @@ static int pdc202xx_old_ide_dma_end(ide_drive_t *drive) static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); -// struct pci_dev *dev = hwif->pci_dev; -// unsigned long high_16 = pci_resource_start(dev, 4); unsigned long high_16 = hwif->dma_master; u8 dma_stat = hwif->INB(hwif->dma_status); u8 sc1d = hwif->INB((high_16 + 0x001d)); @@ -491,7 +486,6 @@ static int pdc202xx_ide_dma_timeout(ide_drive_t *drive) static void pdc202xx_reset_host (ide_hwif_t *hwif) { -// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel)); unsigned long high_16 = hwif->dma_master; u8 udma_speed_flag = hwif->INB(high_16|0x001f); -- cgit v1.2.3 From 2356614b08bf8769790c4f1f55c83d95f802bc51 Mon Sep 17 00:00:00 2001 From: "Antonino A. Daplas" Date: Mon, 26 Jun 2006 00:26:23 -0700 Subject: [PATCH] savagefb: Allocate space for current and saved register states Allocate space for 2 register states: 'current' for the current state of the hardware, and 'saved', to be used for restoring the hardware to a sane state. This is in preparation for the addition of state save and restore hooks to make savagefb work together with the latest Xorg savage driver. Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/savage/savagefb.h | 45 +-- drivers/video/savage/savagefb_driver.c | 515 +++++++++++++++++---------------- 2 files changed, 282 insertions(+), 278 deletions(-) diff --git a/drivers/video/savage/savagefb.h b/drivers/video/savage/savagefb.h index 58cfdfb4183..e648a6c0f6d 100644 --- a/drivers/video/savage/savagefb.h +++ b/drivers/video/savage/savagefb.h @@ -147,7 +147,27 @@ struct xtimings { int interlaced; }; +struct savage_reg { + unsigned char MiscOutReg; /* Misc */ + unsigned char CRTC[25]; /* Crtc Controller */ + unsigned char Sequencer[5]; /* Video Sequencer */ + unsigned char Graphics[9]; /* Video Graphics */ + unsigned char Attribute[21]; /* Video Atribute */ + unsigned int mode, refresh; + unsigned char SR08, SR0E, SR0F; + unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30; + unsigned char SR54[8]; + unsigned char Clock; + unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C; + unsigned char CR40, CR41, CR42, CR43, CR45; + unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E; + unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F; + unsigned char CR86, CR88; + unsigned char CR90, CR91, CRB0; + unsigned int STREAMS[22]; /* yuck, streams regs */ + unsigned int MMPR0, MMPR1, MMPR2, MMPR3; +}; /* --------------------------------------------------------------------- */ #define NR_PALETTE 256 @@ -167,6 +187,8 @@ struct savagefb_par { struct pci_dev *pcidev; savage_chipset chip; struct savagefb_i2c_chan chan; + struct savage_reg state; + struct savage_reg save; unsigned char *edid; u32 pseudo_palette[16]; int paletteEnabled; @@ -179,6 +201,7 @@ struct savagefb_par { int minClock; int numClocks; int clock[4]; + int MCLK, REFCLK, LCDclk; struct { u8 __iomem *vbase; u32 pbase; @@ -196,7 +219,6 @@ struct savagefb_par { volatile u32 __iomem *bci_base; unsigned int bci_ptr; - u32 cob_offset; u32 cob_size; int cob_index; @@ -204,7 +226,6 @@ struct savagefb_par { void (*SavageWaitIdle) (struct savagefb_par *par); void (*SavageWaitFifo) (struct savagefb_par *par, int space); - int MCLK, REFCLK, LCDclk; int HorizScaleFactor; /* Panels size */ @@ -217,26 +238,6 @@ struct savagefb_par { int depth; int vwidth; - - unsigned char MiscOutReg; /* Misc */ - unsigned char CRTC[25]; /* Crtc Controller */ - unsigned char Sequencer[5]; /* Video Sequencer */ - unsigned char Graphics[9]; /* Video Graphics */ - unsigned char Attribute[21]; /* Video Atribute */ - - unsigned int mode, refresh; - unsigned char SR08, SR0E, SR0F; - unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30; - unsigned char SR54[8]; - unsigned char Clock; - unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C; - unsigned char CR40, CR41, CR42, CR43, CR45; - unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E; - unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F; - unsigned char CR86, CR88; - unsigned char CR90, CR91, CRB0; - unsigned int STREAMS[22]; /* yuck, streams regs */ - unsigned int MMPR0, MMPR1, MMPR2, MMPR3; }; #define BCI_BD_BW_DISABLE 0x10000000 diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c index 0da624e6524..267d4e5c999 100644 --- a/drivers/video/savage/savagefb_driver.c +++ b/drivers/video/savage/savagefb_driver.c @@ -122,66 +122,67 @@ static void vgaHWProtect (struct savagefb_par *par, int on) } } -static void vgaHWRestore (struct savagefb_par *par) +static void vgaHWRestore (struct savagefb_par *par, struct savage_reg *reg) { int i; - VGAwMISC (par->MiscOutReg, par); + VGAwMISC (reg->MiscOutReg, par); for (i = 1; i < 5; i++) - VGAwSEQ (i, par->Sequencer[i], par); + VGAwSEQ (i, reg->Sequencer[i], par); /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or CRTC[17] */ - VGAwCR (17, par->CRTC[17] & ~0x80, par); + VGAwCR (17, reg->CRTC[17] & ~0x80, par); for (i = 0; i < 25; i++) - VGAwCR (i, par->CRTC[i], par); + VGAwCR (i, reg->CRTC[i], par); for (i = 0; i < 9; i++) - VGAwGR (i, par->Graphics[i], par); + VGAwGR (i, reg->Graphics[i], par); VGAenablePalette(par); for (i = 0; i < 21; i++) - VGAwATTR (i, par->Attribute[i], par); + VGAwATTR (i, reg->Attribute[i], par); VGAdisablePalette(par); } static void vgaHWInit (struct fb_var_screeninfo *var, struct savagefb_par *par, - struct xtimings *timings) + struct xtimings *timings, + struct savage_reg *reg) { - par->MiscOutReg = 0x23; + reg->MiscOutReg = 0x23; if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT)) - par->MiscOutReg |= 0x40; + reg->MiscOutReg |= 0x40; if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT)) - par->MiscOutReg |= 0x80; + reg->MiscOutReg |= 0x80; /* * Time Sequencer */ - par->Sequencer[0x00] = 0x00; - par->Sequencer[0x01] = 0x01; - par->Sequencer[0x02] = 0x0F; - par->Sequencer[0x03] = 0x00; /* Font select */ - par->Sequencer[0x04] = 0x0E; /* Misc */ + reg->Sequencer[0x00] = 0x00; + reg->Sequencer[0x01] = 0x01; + reg->Sequencer[0x02] = 0x0F; + reg->Sequencer[0x03] = 0x00; /* Font select */ + reg->Sequencer[0x04] = 0x0E; /* Misc */ /* * CRTC Controller */ - par->CRTC[0x00] = (timings->HTotal >> 3) - 5; - par->CRTC[0x01] = (timings->HDisplay >> 3) - 1; - par->CRTC[0x02] = (timings->HSyncStart >> 3) - 1; - par->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80; - par->CRTC[0x04] = (timings->HSyncStart >> 3); - par->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) | + reg->CRTC[0x00] = (timings->HTotal >> 3) - 5; + reg->CRTC[0x01] = (timings->HDisplay >> 3) - 1; + reg->CRTC[0x02] = (timings->HSyncStart >> 3) - 1; + reg->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80; + reg->CRTC[0x04] = (timings->HSyncStart >> 3); + reg->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) | (((timings->HSyncEnd >> 3)) & 0x1f); - par->CRTC[0x06] = (timings->VTotal - 2) & 0xFF; - par->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) | + reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF; + reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) | (((timings->VDisplay - 1) & 0x100) >> 7) | ((timings->VSyncStart & 0x100) >> 6) | (((timings->VSyncStart - 1) & 0x100) >> 5) | @@ -189,27 +190,27 @@ static void vgaHWInit (struct fb_var_screeninfo *var, (((timings->VTotal - 2) & 0x200) >> 4) | (((timings->VDisplay - 1) & 0x200) >> 3) | ((timings->VSyncStart & 0x200) >> 2); - par->CRTC[0x08] = 0x00; - par->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40; + reg->CRTC[0x08] = 0x00; + reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40; if (timings->dblscan) - par->CRTC[0x09] |= 0x80; - - par->CRTC[0x0a] = 0x00; - par->CRTC[0x0b] = 0x00; - par->CRTC[0x0c] = 0x00; - par->CRTC[0x0d] = 0x00; - par->CRTC[0x0e] = 0x00; - par->CRTC[0x0f] = 0x00; - par->CRTC[0x10] = timings->VSyncStart & 0xff; - par->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20; - par->CRTC[0x12] = (timings->VDisplay - 1) & 0xff; - par->CRTC[0x13] = var->xres_virtual >> 4; - par->CRTC[0x14] = 0x00; - par->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff; - par->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff; - par->CRTC[0x17] = 0xc3; - par->CRTC[0x18] = 0xff; + reg->CRTC[0x09] |= 0x80; + + reg->CRTC[0x0a] = 0x00; + reg->CRTC[0x0b] = 0x00; + reg->CRTC[0x0c] = 0x00; + reg->CRTC[0x0d] = 0x00; + reg->CRTC[0x0e] = 0x00; + reg->CRTC[0x0f] = 0x00; + reg->CRTC[0x10] = timings->VSyncStart & 0xff; + reg->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20; + reg->CRTC[0x12] = (timings->VDisplay - 1) & 0xff; + reg->CRTC[0x13] = var->xres_virtual >> 4; + reg->CRTC[0x14] = 0x00; + reg->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff; + reg->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff; + reg->CRTC[0x17] = 0xc3; + reg->CRTC[0x18] = 0xff; /* * are these unnecessary? @@ -220,38 +221,38 @@ static void vgaHWInit (struct fb_var_screeninfo *var, /* * Graphics Display Controller */ - par->Graphics[0x00] = 0x00; - par->Graphics[0x01] = 0x00; - par->Graphics[0x02] = 0x00; - par->Graphics[0x03] = 0x00; - par->Graphics[0x04] = 0x00; - par->Graphics[0x05] = 0x40; - par->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */ - par->Graphics[0x07] = 0x0F; - par->Graphics[0x08] = 0xFF; - - - par->Attribute[0x00] = 0x00; /* standard colormap translation */ - par->Attribute[0x01] = 0x01; - par->Attribute[0x02] = 0x02; - par->Attribute[0x03] = 0x03; - par->Attribute[0x04] = 0x04; - par->Attribute[0x05] = 0x05; - par->Attribute[0x06] = 0x06; - par->Attribute[0x07] = 0x07; - par->Attribute[0x08] = 0x08; - par->Attribute[0x09] = 0x09; - par->Attribute[0x0a] = 0x0A; - par->Attribute[0x0b] = 0x0B; - par->Attribute[0x0c] = 0x0C; - par->Attribute[0x0d] = 0x0D; - par->Attribute[0x0e] = 0x0E; - par->Attribute[0x0f] = 0x0F; - par->Attribute[0x10] = 0x41; - par->Attribute[0x11] = 0xFF; - par->Attribute[0x12] = 0x0F; - par->Attribute[0x13] = 0x00; - par->Attribute[0x14] = 0x00; + reg->Graphics[0x00] = 0x00; + reg->Graphics[0x01] = 0x00; + reg->Graphics[0x02] = 0x00; + reg->Graphics[0x03] = 0x00; + reg->Graphics[0x04] = 0x00; + reg->Graphics[0x05] = 0x40; + reg->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */ + reg->Graphics[0x07] = 0x0F; + reg->Graphics[0x08] = 0xFF; + + + reg->Attribute[0x00] = 0x00; /* standard colormap translation */ + reg->Attribute[0x01] = 0x01; + reg->Attribute[0x02] = 0x02; + reg->Attribute[0x03] = 0x03; + reg->Attribute[0x04] = 0x04; + reg->Attribute[0x05] = 0x05; + reg->Attribute[0x06] = 0x06; + reg->Attribute[0x07] = 0x07; + reg->Attribute[0x08] = 0x08; + reg->Attribute[0x09] = 0x09; + reg->Attribute[0x0a] = 0x0A; + reg->Attribute[0x0b] = 0x0B; + reg->Attribute[0x0c] = 0x0C; + reg->Attribute[0x0d] = 0x0D; + reg->Attribute[0x0e] = 0x0E; + reg->Attribute[0x0f] = 0x0F; + reg->Attribute[0x10] = 0x41; + reg->Attribute[0x11] = 0xFF; + reg->Attribute[0x12] = 0x0F; + reg->Attribute[0x13] = 0x00; + reg->Attribute[0x14] = 0x00; } /* -------------------- Hardware specific routines ------------------------- */ @@ -513,7 +514,7 @@ static void SavagePrintRegs(void) /* --------------------------------------------------------------------- */ -static void savage_get_default_par(struct savagefb_par *par) +static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg) { unsigned char cr3a, cr53, cr66; @@ -543,96 +544,96 @@ static void savage_get_default_par(struct savagefb_par *par) /* unlock extended seq regs */ vga_out8 (0x3c4, 0x08, par); - par->SR08 = vga_in8 (0x3c5, par); + reg->SR08 = vga_in8 (0x3c5, par); vga_out8 (0x3c5, 0x06, par); /* now save all the extended regs we need */ vga_out8 (0x3d4, 0x31, par); - par->CR31 = vga_in8 (0x3d5, par); + reg->CR31 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x32, par); - par->CR32 = vga_in8 (0x3d5, par); + reg->CR32 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x34, par); - par->CR34 = vga_in8 (0x3d5, par); + reg->CR34 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x36, par); - par->CR36 = vga_in8 (0x3d5, par); + reg->CR36 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x3a, par); - par->CR3A = vga_in8 (0x3d5, par); + reg->CR3A = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x40, par); - par->CR40 = vga_in8 (0x3d5, par); + reg->CR40 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x42, par); - par->CR42 = vga_in8 (0x3d5, par); + reg->CR42 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x45, par); - par->CR45 = vga_in8 (0x3d5, par); + reg->CR45 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x50, par); - par->CR50 = vga_in8 (0x3d5, par); + reg->CR50 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x51, par); - par->CR51 = vga_in8 (0x3d5, par); + reg->CR51 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x53, par); - par->CR53 = vga_in8 (0x3d5, par); + reg->CR53 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x58, par); - par->CR58 = vga_in8 (0x3d5, par); + reg->CR58 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x60, par); - par->CR60 = vga_in8 (0x3d5, par); + reg->CR60 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x66, par); - par->CR66 = vga_in8 (0x3d5, par); + reg->CR66 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x67, par); - par->CR67 = vga_in8 (0x3d5, par); + reg->CR67 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x68, par); - par->CR68 = vga_in8 (0x3d5, par); + reg->CR68 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x69, par); - par->CR69 = vga_in8 (0x3d5, par); + reg->CR69 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x6f, par); - par->CR6F = vga_in8 (0x3d5, par); + reg->CR6F = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x33, par); - par->CR33 = vga_in8 (0x3d5, par); + reg->CR33 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x86, par); - par->CR86 = vga_in8 (0x3d5, par); + reg->CR86 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x88, par); - par->CR88 = vga_in8 (0x3d5, par); + reg->CR88 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x90, par); - par->CR90 = vga_in8 (0x3d5, par); + reg->CR90 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x91, par); - par->CR91 = vga_in8 (0x3d5, par); + reg->CR91 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0xb0, par); - par->CRB0 = vga_in8 (0x3d5, par) | 0x80; + reg->CRB0 = vga_in8 (0x3d5, par) | 0x80; /* extended mode timing regs */ vga_out8 (0x3d4, 0x3b, par); - par->CR3B = vga_in8 (0x3d5, par); + reg->CR3B = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x3c, par); - par->CR3C = vga_in8 (0x3d5, par); + reg->CR3C = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x43, par); - par->CR43 = vga_in8 (0x3d5, par); + reg->CR43 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x5d, par); - par->CR5D = vga_in8 (0x3d5, par); + reg->CR5D = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x5e, par); - par->CR5E = vga_in8 (0x3d5, par); + reg->CR5E = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x65, par); - par->CR65 = vga_in8 (0x3d5, par); + reg->CR65 = vga_in8 (0x3d5, par); /* save seq extended regs for DCLK PLL programming */ vga_out8 (0x3c4, 0x0e, par); - par->SR0E = vga_in8 (0x3c5, par); + reg->SR0E = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x0f, par); - par->SR0F = vga_in8 (0x3c5, par); + reg->SR0F = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x10, par); - par->SR10 = vga_in8 (0x3c5, par); + reg->SR10 = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x11, par); - par->SR11 = vga_in8 (0x3c5, par); + reg->SR11 = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x12, par); - par->SR12 = vga_in8 (0x3c5, par); + reg->SR12 = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x13, par); - par->SR13 = vga_in8 (0x3c5, par); + reg->SR13 = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x29, par); - par->SR29 = vga_in8 (0x3c5, par); + reg->SR29 = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x15, par); - par->SR15 = vga_in8 (0x3c5, par); + reg->SR15 = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x30, par); - par->SR30 = vga_in8 (0x3c5, par); + reg->SR30 = vga_in8 (0x3c5, par); vga_out8 (0x3c4, 0x18, par); - par->SR18 = vga_in8 (0x3c5, par); + reg->SR18 = vga_in8 (0x3c5, par); /* Save flat panel expansion regsters. */ if (par->chip == S3_SAVAGE_MX) { @@ -640,7 +641,7 @@ static void savage_get_default_par(struct savagefb_par *par) for (i = 0; i < 8; i++) { vga_out8 (0x3c4, 0x54+i, par); - par->SR54[i] = vga_in8 (0x3c5, par); + reg->SR54[i] = vga_in8 (0x3c5, par); } } @@ -653,10 +654,10 @@ static void savage_get_default_par(struct savagefb_par *par) /* now save MIU regs */ if (par->chip != S3_SAVAGE_MX) { - par->MMPR0 = savage_in32(FIFO_CONTROL_REG, par); - par->MMPR1 = savage_in32(MIU_CONTROL_REG, par); - par->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par); - par->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par); + reg->MMPR0 = savage_in32(FIFO_CONTROL_REG, par); + reg->MMPR1 = savage_in32(MIU_CONTROL_REG, par); + reg->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par); + reg->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par); } vga_out8 (0x3d4, 0x3a, par); @@ -789,7 +790,8 @@ static int savagefb_check_var (struct fb_var_screeninfo *var, static int savagefb_decode_var (struct fb_var_screeninfo *var, - struct savagefb_par *par) + struct savagefb_par *par, + struct savage_reg *reg) { struct xtimings timings; int width, dclk, i, j; /*, refresh; */ @@ -831,39 +833,39 @@ static int savagefb_decode_var (struct fb_var_screeninfo *var, * This will allocate the datastructure and initialize all of the * generic VGA registers. */ - vgaHWInit (var, par, &timings); + vgaHWInit (var, par, &timings, reg); /* We need to set CR67 whether or not we use the BIOS. */ dclk = timings.Clock; - par->CR67 = 0x00; + reg->CR67 = 0x00; switch( var->bits_per_pixel ) { case 8: if( (par->chip == S3_SAVAGE2000) && (dclk >= 230000) ) - par->CR67 = 0x10; /* 8bpp, 2 pixels/clock */ + reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */ else - par->CR67 = 0x00; /* 8bpp, 1 pixel/clock */ + reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */ break; case 15: if ( S3_SAVAGE_MOBILE_SERIES(par->chip) || ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)) ) - par->CR67 = 0x30; /* 15bpp, 2 pixel/clock */ + reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */ else - par->CR67 = 0x20; /* 15bpp, 1 pixels/clock */ + reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */ break; case 16: if( S3_SAVAGE_MOBILE_SERIES(par->chip) || ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)) ) - par->CR67 = 0x50; /* 16bpp, 2 pixel/clock */ + reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */ else - par->CR67 = 0x40; /* 16bpp, 1 pixels/clock */ + reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */ break; case 24: - par->CR67 = 0x70; + reg->CR67 = 0x70; break; case 32: - par->CR67 = 0xd0; + reg->CR67 = 0xd0; break; } @@ -875,58 +877,58 @@ static int savagefb_decode_var (struct fb_var_screeninfo *var, vga_out8 (0x3d4, 0x3a, par); tmp = vga_in8 (0x3d5, par); if (1 /*FIXME:psav->pci_burst*/) - par->CR3A = (tmp & 0x7f) | 0x15; + reg->CR3A = (tmp & 0x7f) | 0x15; else - par->CR3A = tmp | 0x95; + reg->CR3A = tmp | 0x95; - par->CR53 = 0x00; - par->CR31 = 0x8c; - par->CR66 = 0x89; + reg->CR53 = 0x00; + reg->CR31 = 0x8c; + reg->CR66 = 0x89; vga_out8 (0x3d4, 0x58, par); - par->CR58 = vga_in8 (0x3d5, par) & 0x80; - par->CR58 |= 0x13; + reg->CR58 = vga_in8 (0x3d5, par) & 0x80; + reg->CR58 |= 0x13; - par->SR15 = 0x03 | 0x80; - par->SR18 = 0x00; - par->CR43 = par->CR45 = par->CR65 = 0x00; + reg->SR15 = 0x03 | 0x80; + reg->SR18 = 0x00; + reg->CR43 = reg->CR45 = reg->CR65 = 0x00; vga_out8 (0x3d4, 0x40, par); - par->CR40 = vga_in8 (0x3d5, par) & ~0x01; + reg->CR40 = vga_in8 (0x3d5, par) & ~0x01; - par->MMPR0 = 0x010400; - par->MMPR1 = 0x00; - par->MMPR2 = 0x0808; - par->MMPR3 = 0x08080810; + reg->MMPR0 = 0x010400; + reg->MMPR1 = 0x00; + reg->MMPR2 = 0x0808; + reg->MMPR3 = 0x08080810; SavageCalcClock (dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r); /* m = 107; n = 4; r = 2; */ if (par->MCLK <= 0) { - par->SR10 = 255; - par->SR11 = 255; + reg->SR10 = 255; + reg->SR11 = 255; } else { common_calc_clock (par->MCLK, 1, 1, 31, 0, 3, 135000, 270000, - &par->SR11, &par->SR10); - /* par->SR10 = 80; // MCLK == 286000 */ - /* par->SR11 = 125; */ + ®->SR11, ®->SR10); + /* reg->SR10 = 80; // MCLK == 286000 */ + /* reg->SR11 = 125; */ } - par->SR12 = (r << 6) | (n & 0x3f); - par->SR13 = m & 0xff; - par->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2; + reg->SR12 = (r << 6) | (n & 0x3f); + reg->SR13 = m & 0xff; + reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2; if (var->bits_per_pixel < 24) - par->MMPR0 -= 0x8000; + reg->MMPR0 -= 0x8000; else - par->MMPR0 -= 0x4000; + reg->MMPR0 -= 0x4000; if (timings.interlaced) - par->CR42 = 0x20; + reg->CR42 = 0x20; else - par->CR42 = 0x00; + reg->CR42 = 0x00; - par->CR34 = 0x10; /* display fifo */ + reg->CR34 = 0x10; /* display fifo */ i = ((((timings.HTotal >> 3) - 5) & 0x100) >> 8) | ((((timings.HDisplay >> 3) - 1) & 0x100) >> 7) | @@ -938,77 +940,77 @@ static int savagefb_decode_var (struct fb_var_screeninfo *var, if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 32) i |= 0x20; - j = (par->CRTC[0] + ((i & 0x01) << 8) + - par->CRTC[4] + ((i & 0x10) << 4) + 1) / 2; + j = (reg->CRTC[0] + ((i & 0x01) << 8) + + reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2; - if (j - (par->CRTC[4] + ((i & 0x10) << 4)) < 4) { - if (par->CRTC[4] + ((i & 0x10) << 4) + 4 <= - par->CRTC[0] + ((i & 0x01) << 8)) - j = par->CRTC[4] + ((i & 0x10) << 4) + 4; + if (j - (reg->CRTC[4] + ((i & 0x10) << 4)) < 4) { + if (reg->CRTC[4] + ((i & 0x10) << 4) + 4 <= + reg->CRTC[0] + ((i & 0x01) << 8)) + j = reg->CRTC[4] + ((i & 0x10) << 4) + 4; else - j = par->CRTC[0] + ((i & 0x01) << 8) + 1; + j = reg->CRTC[0] + ((i & 0x01) << 8) + 1; } - par->CR3B = j & 0xff; + reg->CR3B = j & 0xff; i |= (j & 0x100) >> 2; - par->CR3C = (par->CRTC[0] + ((i & 0x01) << 8)) / 2; - par->CR5D = i; - par->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) | + reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2; + reg->CR5D = i; + reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) | (((timings.VDisplay - 1) & 0x400) >> 9) | (((timings.VSyncStart) & 0x400) >> 8) | (((timings.VSyncStart) & 0x400) >> 6) | 0x40; width = (var->xres_virtual * ((var->bits_per_pixel+7) / 8)) >> 3; - par->CR91 = par->CRTC[19] = 0xff & width; - par->CR51 = (0x300 & width) >> 4; - par->CR90 = 0x80 | (width >> 8); - par->MiscOutReg |= 0x0c; + reg->CR91 = reg->CRTC[19] = 0xff & width; + reg->CR51 = (0x300 & width) >> 4; + reg->CR90 = 0x80 | (width >> 8); + reg->MiscOutReg |= 0x0c; /* Set frame buffer description. */ if (var->bits_per_pixel <= 8) - par->CR50 = 0; + reg->CR50 = 0; else if (var->bits_per_pixel <= 16) - par->CR50 = 0x10; + reg->CR50 = 0x10; else - par->CR50 = 0x30; + reg->CR50 = 0x30; if (var->xres_virtual <= 640) - par->CR50 |= 0x40; + reg->CR50 |= 0x40; else if (var->xres_virtual == 800) - par->CR50 |= 0x80; + reg->CR50 |= 0x80; else if (var->xres_virtual == 1024) - par->CR50 |= 0x00; + reg->CR50 |= 0x00; else if (var->xres_virtual == 1152) - par->CR50 |= 0x01; + reg->CR50 |= 0x01; else if (var->xres_virtual == 1280) - par->CR50 |= 0xc0; + reg->CR50 |= 0xc0; else if (var->xres_virtual == 1600) - par->CR50 |= 0x81; + reg->CR50 |= 0x81; else - par->CR50 |= 0xc1; /* Use GBD */ + reg->CR50 |= 0xc1; /* Use GBD */ if( par->chip == S3_SAVAGE2000 ) - par->CR33 = 0x08; + reg->CR33 = 0x08; else - par->CR33 = 0x20; + reg->CR33 = 0x20; - par->CRTC[0x17] = 0xeb; + reg->CRTC[0x17] = 0xeb; - par->CR67 |= 1; + reg->CR67 |= 1; vga_out8(0x3d4, 0x36, par); - par->CR36 = vga_in8 (0x3d5, par); + reg->CR36 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x68, par); - par->CR68 = vga_in8 (0x3d5, par); - par->CR69 = 0; + reg->CR68 = vga_in8 (0x3d5, par); + reg->CR69 = 0; vga_out8 (0x3d4, 0x6f, par); - par->CR6F = vga_in8 (0x3d5, par); + reg->CR6F = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x86, par); - par->CR86 = vga_in8 (0x3d5, par); + reg->CR86 = vga_in8 (0x3d5, par); vga_out8 (0x3d4, 0x88, par); - par->CR88 = vga_in8 (0x3d5, par) | 0x08; + reg->CR88 = vga_in8 (0x3d5, par) | 0x08; vga_out8 (0x3d4, 0xb0, par); - par->CRB0 = vga_in8 (0x3d5, par) | 0x80; + reg->CRB0 = vga_in8 (0x3d5, par) | 0x80; return 0; } @@ -1075,7 +1077,7 @@ static int savagefb_setcolreg(unsigned regno, return 0; } -static void savagefb_set_par_int (struct savagefb_par *par) +static void savagefb_set_par_int (struct savagefb_par *par, struct savage_reg *reg) { unsigned char tmp, cr3a, cr66, cr67; @@ -1110,30 +1112,30 @@ static void savagefb_set_par_int (struct savagefb_par *par) /* restore extended regs */ vga_out8 (0x3d4, 0x66, par); - vga_out8 (0x3d5, par->CR66, par); + vga_out8 (0x3d5, reg->CR66, par); vga_out8 (0x3d4, 0x3a, par); - vga_out8 (0x3d5, par->CR3A, par); + vga_out8 (0x3d5, reg->CR3A, par); vga_out8 (0x3d4, 0x31, par); - vga_out8 (0x3d5, par->CR31, par); + vga_out8 (0x3d5, reg->CR31, par); vga_out8 (0x3d4, 0x32, par); - vga_out8 (0x3d5, par->CR32, par); + vga_out8 (0x3d5, reg->CR32, par); vga_out8 (0x3d4, 0x58, par); - vga_out8 (0x3d5, par->CR58, par); + vga_out8 (0x3d5, reg->CR58, par); vga_out8 (0x3d4, 0x53, par); - vga_out8 (0x3d5, par->CR53 & 0x7f, par); + vga_out8 (0x3d5, reg->CR53 & 0x7f, par); vga_out16 (0x3c4, 0x0608, par); /* Restore DCLK registers. */ vga_out8 (0x3c4, 0x0e, par); - vga_out8 (0x3c5, par->SR0E, par); + vga_out8 (0x3c5, reg->SR0E, par); vga_out8 (0x3c4, 0x0f, par); - vga_out8 (0x3c5, par->SR0F, par); + vga_out8 (0x3c5, reg->SR0F, par); vga_out8 (0x3c4, 0x29, par); - vga_out8 (0x3c5, par->SR29, par); + vga_out8 (0x3c5, reg->SR29, par); vga_out8 (0x3c4, 0x15, par); - vga_out8 (0x3c5, par->SR15, par); + vga_out8 (0x3c5, reg->SR15, par); /* Restore flat panel expansion regsters. */ if( par->chip == S3_SAVAGE_MX ) { @@ -1141,27 +1143,27 @@ static void savagefb_set_par_int (struct savagefb_par *par) for( i = 0; i < 8; i++ ) { vga_out8 (0x3c4, 0x54+i, par); - vga_out8 (0x3c5, par->SR54[i], par); + vga_out8 (0x3c5, reg->SR54[i], par); } } - vgaHWRestore (par); + vgaHWRestore (par, reg); /* extended mode timing registers */ vga_out8 (0x3d4, 0x53, par); - vga_out8 (0x3d5, par->CR53, par); + vga_out8 (0x3d5, reg->CR53, par); vga_out8 (0x3d4, 0x5d, par); - vga_out8 (0x3d5, par->CR5D, par); + vga_out8 (0x3d5, reg->CR5D, par); vga_out8 (0x3d4, 0x5e, par); - vga_out8 (0x3d5, par->CR5E, par); + vga_out8 (0x3d5, reg->CR5E, par); vga_out8 (0x3d4, 0x3b, par); - vga_out8 (0x3d5, par->CR3B, par); + vga_out8 (0x3d5, reg->CR3B, par); vga_out8 (0x3d4, 0x3c, par); - vga_out8 (0x3d5, par->CR3C, par); + vga_out8 (0x3d5, reg->CR3C, par); vga_out8 (0x3d4, 0x43, par); - vga_out8 (0x3d5, par->CR43, par); + vga_out8 (0x3d5, reg->CR43, par); vga_out8 (0x3d4, 0x65, par); - vga_out8 (0x3d5, par->CR65, par); + vga_out8 (0x3d5, reg->CR65, par); /* restore the desired video mode with cr67 */ vga_out8 (0x3d4, 0x67, par); @@ -1171,52 +1173,52 @@ static void savagefb_set_par_int (struct savagefb_par *par) udelay (10000); vga_out8 (0x3d4, 0x67, par); /* end of part */ - vga_out8 (0x3d5, par->CR67 & ~0x0c, par); + vga_out8 (0x3d5, reg->CR67 & ~0x0c, par); /* other mode timing and extended regs */ vga_out8 (0x3d4, 0x34, par); - vga_out8 (0x3d5, par->CR34, par); + vga_out8 (0x3d5, reg->CR34, par); vga_out8 (0x3d4, 0x40, par); - vga_out8 (0x3d5, par->CR40, par); + vga_out8 (0x3d5, reg->CR40, par); vga_out8 (0x3d4, 0x42, par); - vga_out8 (0x3d5, par->CR42, par); + vga_out8 (0x3d5, reg->CR42, par); vga_out8 (0x3d4, 0x45, par); - vga_out8 (0x3d5, par->CR45, par); + vga_out8 (0x3d5, reg->CR45, par); vga_out8 (0x3d4, 0x50, par); - vga_out8 (0x3d5, par->CR50, par); + vga_out8 (0x3d5, reg->CR50, par); vga_out8 (0x3d4, 0x51, par); - vga_out8 (0x3d5, par->CR51, par); + vga_out8 (0x3d5, reg->CR51, par); /* memory timings */ vga_out8 (0x3d4, 0x36, par); - vga_out8 (0x3d5, par->CR36, par); + vga_out8 (0x3d5, reg->CR36, par); vga_out8 (0x3d4, 0x60, par); - vga_out8 (0x3d5, par->CR60, par); + vga_out8 (0x3d5, reg->CR60, par); vga_out8 (0x3d4, 0x68, par); - vga_out8 (0x3d5, par->CR68, par); + vga_out8 (0x3d5, reg->CR68, par); vga_out8 (0x3d4, 0x69, par); - vga_out8 (0x3d5, par->CR69, par); + vga_out8 (0x3d5, reg->CR69, par); vga_out8 (0x3d4, 0x6f, par); - vga_out8 (0x3d5, par->CR6F, par); + vga_out8 (0x3d5, reg->CR6F, par); vga_out8 (0x3d4, 0x33, par); - vga_out8 (0x3d5, par->CR33, par); + vga_out8 (0x3d5, reg->CR33, par); vga_out8 (0x3d4, 0x86, par); - vga_out8 (0x3d5, par->CR86, par); + vga_out8 (0x3d5, reg->CR86, par); vga_out8 (0x3d4, 0x88, par); - vga_out8 (0x3d5, par->CR88, par); + vga_out8 (0x3d5, reg->CR88, par); vga_out8 (0x3d4, 0x90, par); - vga_out8 (0x3d5, par->CR90, par); + vga_out8 (0x3d5, reg->CR90, par); vga_out8 (0x3d4, 0x91, par); - vga_out8 (0x3d5, par->CR91, par); + vga_out8 (0x3d5, reg->CR91, par); if (par->chip == S3_SAVAGE4) { vga_out8 (0x3d4, 0xb0, par); - vga_out8 (0x3d5, par->CRB0, par); + vga_out8 (0x3d5, reg->CRB0, par); } vga_out8 (0x3d4, 0x32, par); - vga_out8 (0x3d5, par->CR32, par); + vga_out8 (0x3d5, reg->CR32, par); /* unlock extended seq regs */ vga_out8 (0x3c4, 0x08, par); @@ -1225,27 +1227,27 @@ static void savagefb_set_par_int (struct savagefb_par *par) /* Restore extended sequencer regs for MCLK. SR10 == 255 indicates * that we should leave the default SR10 and SR11 values there. */ - if (par->SR10 != 255) { + if (reg->SR10 != 255) { vga_out8 (0x3c4, 0x10, par); - vga_out8 (0x3c5, par->SR10, par); + vga_out8 (0x3c5, reg->SR10, par); vga_out8 (0x3c4, 0x11, par); - vga_out8 (0x3c5, par->SR11, par); + vga_out8 (0x3c5, reg->SR11, par); } /* restore extended seq regs for dclk */ vga_out8 (0x3c4, 0x0e, par); - vga_out8 (0x3c5, par->SR0E, par); + vga_out8 (0x3c5, reg->SR0E, par); vga_out8 (0x3c4, 0x0f, par); - vga_out8 (0x3c5, par->SR0F, par); + vga_out8 (0x3c5, reg->SR0F, par); vga_out8 (0x3c4, 0x12, par); - vga_out8 (0x3c5, par->SR12, par); + vga_out8 (0x3c5, reg->SR12, par); vga_out8 (0x3c4, 0x13, par); - vga_out8 (0x3c5, par->SR13, par); + vga_out8 (0x3c5, reg->SR13, par); vga_out8 (0x3c4, 0x29, par); - vga_out8 (0x3c5, par->SR29, par); + vga_out8 (0x3c5, reg->SR29, par); vga_out8 (0x3c4, 0x18, par); - vga_out8 (0x3c5, par->SR18, par); + vga_out8 (0x3c5, reg->SR18, par); /* load new m, n pll values for dclk & mclk */ vga_out8 (0x3c4, 0x15, par); @@ -1254,18 +1256,18 @@ static void savagefb_set_par_int (struct savagefb_par *par) vga_out8 (0x3c5, tmp | 0x03, par); vga_out8 (0x3c5, tmp | 0x23, par); vga_out8 (0x3c5, tmp | 0x03, par); - vga_out8 (0x3c5, par->SR15, par); + vga_out8 (0x3c5, reg->SR15, par); udelay (100); vga_out8 (0x3c4, 0x30, par); - vga_out8 (0x3c5, par->SR30, par); + vga_out8 (0x3c5, reg->SR30, par); vga_out8 (0x3c4, 0x08, par); - vga_out8 (0x3c5, par->SR08, par); + vga_out8 (0x3c5, reg->SR08, par); /* now write out cr67 in full, possibly starting STREAMS */ VerticalRetraceWait(par); vga_out8 (0x3d4, 0x67, par); - vga_out8 (0x3d5, par->CR67, par); + vga_out8 (0x3d5, reg->CR67, par); vga_out8 (0x3d4, 0x66, par); cr66 = vga_in8 (0x3d5, par); @@ -1276,13 +1278,13 @@ static void savagefb_set_par_int (struct savagefb_par *par) if (par->chip != S3_SAVAGE_MX) { VerticalRetraceWait(par); - savage_out32 (FIFO_CONTROL_REG, par->MMPR0, par); + savage_out32 (FIFO_CONTROL_REG, reg->MMPR0, par); par->SavageWaitIdle (par); - savage_out32 (MIU_CONTROL_REG, par->MMPR1, par); + savage_out32 (MIU_CONTROL_REG, reg->MMPR1, par); par->SavageWaitIdle (par); - savage_out32 (STREAMS_TIMEOUT_REG, par->MMPR2, par); + savage_out32 (STREAMS_TIMEOUT_REG, reg->MMPR2, par); par->SavageWaitIdle (par); - savage_out32 (MISC_TIMEOUT_REG, par->MMPR3, par); + savage_out32 (MISC_TIMEOUT_REG, reg->MMPR3, par); } vga_out8 (0x3d4, 0x66, par); @@ -1347,7 +1349,7 @@ static int savagefb_set_par (struct fb_info *info) int err; DBG("savagefb_set_par"); - err = savagefb_decode_var (var, par); + err = savagefb_decode_var (var, par, &par->state); if (err) return err; @@ -1366,7 +1368,7 @@ static int savagefb_set_par (struct fb_info *info) par->maxClock = par->dacSpeedBpp; par->minClock = 10000; - savagefb_set_par_int (par); + savagefb_set_par_int (par, &par->state); fb_set_cmap (&info->cmap, info); savagefb_set_fix(info); savagefb_set_clip(info); @@ -1824,7 +1826,8 @@ static int savage_init_hw (struct savagefb_par *par) par->display_type = DISP_CRT; } - savage_get_default_par (par); + savage_get_default_par (par, &par->state); + par->save = par->state; if( S3_SAVAGE4_SERIES(par->chip) ) { /* -- cgit v1.2.3 From f8020dc560fde089becc05de1d0ada1f7f46dc51 Mon Sep 17 00:00:00 2001 From: "Antonino A. Daplas" Date: Mon, 26 Jun 2006 00:26:24 -0700 Subject: [PATCH] savagefb: Add state save and_restore hooks Reported by: Rich (Bugzilla Bug 6417) "if savage driver is used in x.org together with savagefb, it results in seriously garbled and distorted screen - coupled with severe slowdowns." This bug is the result of Xorg unable to handle savagefb altering the hardware which results in X failing to start properly and/or failed console switching. Add savagefb_state_save and savagefb_state_restore. These hooks will only save and restore the extended VGA registers. Standard VGA registers will be left alone. This is enough to make savagefb play nicely with the latest Xorg savage driver, and perhaps with savage DRI. (Transient screen artifacts may appear before X loads and during console switches). (Unfortunately, blanking the screen also leaves Xorg in a blanked state, so I have to unblank the screen before Xorg loads. So I doubt if the transient screen artifacts will be completely invisible but hopefully it will only be for a shorter duration (not much).) [akpm@osdl.org: cleanups] Signed-off-by: Antonino Daplas Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/savage/savagefb_driver.c | 209 ++++++++++++++++++++++++++++++--- 1 file changed, 191 insertions(+), 18 deletions(-) diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c index 267d4e5c999..3bd0a573d75 100644 --- a/drivers/video/savage/savagefb_driver.c +++ b/drivers/video/savage/savagefb_driver.c @@ -305,7 +305,7 @@ savage2000_waitidle(struct savagefb_par *par) while ((savage_in32(0x48C60, par) & 0x009fffff)); } - +#ifdef CONFIG_FB_SAVAGE_ACCEL static void SavageSetup2DEngine (struct savagefb_par *par) { @@ -388,6 +388,22 @@ SavageSetup2DEngine (struct savagefb_par *par) BCI_SEND( GlobalBitmapDescriptor ); } +static void savagefb_set_clip(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + int cmd; + + cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW; + par->bci_ptr = 0; + par->SavageWaitFifo(par,3); + BCI_SEND(cmd); + BCI_SEND(BCI_CLIP_TL(0, 0)); + BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff)); +} +#else +static void SavageSetup2DEngine (struct savagefb_par *par) {} + +#endif static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1, int min_n2, int max_n2, long freq_min, @@ -666,6 +682,159 @@ static void savage_get_default_par(struct savagefb_par *par, struct savage_reg * vga_out8 (0x3d5, cr66, par); } +static void savage_set_default_par(struct savagefb_par *par, + struct savage_reg *reg) +{ + unsigned char cr3a, cr53, cr66; + + vga_out16(0x3d4, 0x4838, par); + vga_out16(0x3d4, 0xa039, par); + vga_out16(0x3c4, 0x0608, par); + + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x80, par); + vga_out8(0x3d4, 0x3a, par); + cr3a = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3a | 0x80, par); + vga_out8(0x3d4, 0x53, par); + cr53 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr53 & 0x7f, par); + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + + /* unlock extended seq regs */ + vga_out8(0x3c4, 0x08, par); + vga_out8(0x3c5, reg->SR08, par); + vga_out8(0x3c5, 0x06, par); + + /* now restore all the extended regs we need */ + vga_out8(0x3d4, 0x31, par); + vga_out8(0x3d5, reg->CR31, par); + vga_out8(0x3d4, 0x32, par); + vga_out8(0x3d5, reg->CR32, par); + vga_out8(0x3d4, 0x34, par); + vga_out8(0x3d5, reg->CR34, par); + vga_out8(0x3d4, 0x36, par); + vga_out8(0x3d5,reg->CR36, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, reg->CR3A, par); + vga_out8(0x3d4, 0x40, par); + vga_out8(0x3d5, reg->CR40, par); + vga_out8(0x3d4, 0x42, par); + vga_out8(0x3d5, reg->CR42, par); + vga_out8(0x3d4, 0x45, par); + vga_out8(0x3d5, reg->CR45, par); + vga_out8(0x3d4, 0x50, par); + vga_out8(0x3d5, reg->CR50, par); + vga_out8(0x3d4, 0x51, par); + vga_out8(0x3d5, reg->CR51, par); + vga_out8(0x3d4, 0x53, par); + vga_out8(0x3d5, reg->CR53, par); + vga_out8(0x3d4, 0x58, par); + vga_out8(0x3d5, reg->CR58, par); + vga_out8(0x3d4, 0x60, par); + vga_out8(0x3d5, reg->CR60, par); + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, reg->CR66, par); + vga_out8(0x3d4, 0x67, par); + vga_out8(0x3d5, reg->CR67, par); + vga_out8(0x3d4, 0x68, par); + vga_out8(0x3d5, reg->CR68, par); + vga_out8(0x3d4, 0x69, par); + vga_out8(0x3d5, reg->CR69, par); + vga_out8(0x3d4, 0x6f, par); + vga_out8(0x3d5, reg->CR6F, par); + + vga_out8(0x3d4, 0x33, par); + vga_out8(0x3d5, reg->CR33, par); + vga_out8(0x3d4, 0x86, par); + vga_out8(0x3d5, reg->CR86, par); + vga_out8(0x3d4, 0x88, par); + vga_out8(0x3d5, reg->CR88, par); + vga_out8(0x3d4, 0x90, par); + vga_out8(0x3d5, reg->CR90, par); + vga_out8(0x3d4, 0x91, par); + vga_out8(0x3d5, reg->CR91, par); + vga_out8(0x3d4, 0xb0, par); + vga_out8(0x3d5, reg->CRB0, par); + + /* extended mode timing regs */ + vga_out8(0x3d4, 0x3b, par); + vga_out8(0x3d5, reg->CR3B, par); + vga_out8(0x3d4, 0x3c, par); + vga_out8(0x3d5, reg->CR3C, par); + vga_out8(0x3d4, 0x43, par); + vga_out8(0x3d5, reg->CR43, par); + vga_out8(0x3d4, 0x5d, par); + vga_out8(0x3d5, reg->CR5D, par); + vga_out8(0x3d4, 0x5e, par); + vga_out8(0x3d5, reg->CR5E, par); + vga_out8(0x3d4, 0x65, par); + vga_out8(0x3d5, reg->CR65, par); + + /* save seq extended regs for DCLK PLL programming */ + vga_out8(0x3c4, 0x0e, par); + vga_out8(0x3c5, reg->SR0E, par); + vga_out8(0x3c4, 0x0f, par); + vga_out8(0x3c5, reg->SR0F, par); + vga_out8(0x3c4, 0x10, par); + vga_out8(0x3c5, reg->SR10, par); + vga_out8(0x3c4, 0x11, par); + vga_out8(0x3c5, reg->SR11, par); + vga_out8(0x3c4, 0x12, par); + vga_out8(0x3c5, reg->SR12, par); + vga_out8(0x3c4, 0x13, par); + vga_out8(0x3c5, reg->SR13, par); + vga_out8(0x3c4, 0x29, par); + vga_out8(0x3c5, reg->SR29, par); + + vga_out8(0x3c4, 0x15, par); + vga_out8(0x3c5, reg->SR15, par); + vga_out8(0x3c4, 0x30, par); + vga_out8(0x3c5, reg->SR30, par); + vga_out8(0x3c4, 0x18, par); + vga_out8(0x3c5, reg->SR18, par); + + /* Save flat panel expansion regsters. */ + if (par->chip == S3_SAVAGE_MX) { + int i; + + for (i = 0; i < 8; i++) { + vga_out8(0x3c4, 0x54+i, par); + vga_out8(0x3c5, reg->SR54[i], par); + } + } + + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x80, par); + vga_out8(0x3d4, 0x3a, par); + cr3a = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3a | 0x80, par); + + /* now save MIU regs */ + if (par->chip != S3_SAVAGE_MX) { + savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par); + savage_out32(MIU_CONTROL_REG, reg->MMPR1, par); + savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par); + savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par); + } + + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); +} + static void savage_update_var(struct fb_var_screeninfo *var, struct fb_videomode *modedb) { var->xres = var->xres_virtual = modedb->xres; @@ -1327,21 +1496,6 @@ static void savagefb_set_fix(struct fb_info *info) } -#if defined(CONFIG_FB_SAVAGE_ACCEL) -static void savagefb_set_clip(struct fb_info *info) -{ - struct savagefb_par *par = info->par; - int cmd; - - cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW; - par->bci_ptr = 0; - par->SavageWaitFifo(par,3); - BCI_SEND(cmd); - BCI_SEND(BCI_CLIP_TL(0, 0)); - BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff)); -} -#endif - static int savagefb_set_par (struct fb_info *info) { struct savagefb_par *par = info->par; @@ -1442,6 +1596,22 @@ static int savagefb_blank(int blank, struct fb_info *info) return (blank == FB_BLANK_NORMAL) ? 1 : 0; } +static void savagefb_save_state(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + + savage_get_default_par(par, &par->save); +} + +static void savagefb_restore_state(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + + savagefb_blank(FB_BLANK_POWERDOWN, info); + savage_set_default_par(par, &par->save); + savagefb_blank(FB_BLANK_UNBLANK, info); +} + static struct fb_ops savagefb_ops = { .owner = THIS_MODULE, .fb_check_var = savagefb_check_var, @@ -1449,6 +1619,8 @@ static struct fb_ops savagefb_ops = { .fb_setcolreg = savagefb_setcolreg, .fb_pan_display = savagefb_pan_display, .fb_blank = savagefb_blank, + .fb_save_state = savagefb_save_state, + .fb_restore_state = savagefb_restore_state, #if defined(CONFIG_FB_SAVAGE_ACCEL) .fb_fillrect = savagefb_fillrect, .fb_copyarea = savagefb_copyarea, @@ -2180,6 +2352,7 @@ static int savagefb_suspend (struct pci_dev* dev, pm_message_t state) info->fbops->fb_sync(info); savagefb_blank(FB_BLANK_POWERDOWN, info); + savage_set_default_par(par, &par->save); savage_disable_mmio(par); pci_save_state(dev); pci_disable_device(dev); @@ -2219,9 +2392,9 @@ static int savagefb_resume (struct pci_dev* dev) pci_set_master(dev); savage_enable_mmio(par); savage_init_hw(par); - savagefb_set_par (info); - savagefb_blank(FB_BLANK_UNBLANK, info); + savagefb_set_par(info); fb_set_suspend (info, 0); + savagefb_blank(FB_BLANK_UNBLANK, info); release_console_sem(); return 0; -- cgit v1.2.3 From e4423781850025726b6c4e24ba3d93c7ff9cd826 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Mon, 26 Jun 2006 00:26:27 -0700 Subject: [PATCH] backlight: LOCOMO Backlight Driver updates Add backlight intensity control to the LOCOMO lcd/backlight driver using the backlight class and add basic power management support. This is a reimplementation and improvement of patches by John Lenz and Pavel Machek Signed-off-by: Richard Purdie Signed-off-by: Antonino Daplas Cc: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/common/locomo.c | 45 +++++++------ drivers/video/backlight/Kconfig | 8 +++ drivers/video/backlight/Makefile | 2 +- drivers/video/backlight/locomolcd.c | 123 +++++++++++++++++++++++++++++++----- include/asm-arm/hardware/locomo.h | 5 ++ 5 files changed, 146 insertions(+), 37 deletions(-) diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c index a7dc1370695..0dafba3a701 100644 --- a/arch/arm/common/locomo.c +++ b/arch/arm/common/locomo.c @@ -629,21 +629,6 @@ static int locomo_resume(struct platform_device *dev) #endif -#define LCM_ALC_EN 0x8000 - -void frontlight_set(struct locomo *lchip, int duty, int vr, int bpwf) -{ - unsigned long flags; - - spin_lock_irqsave(&lchip->lock, flags); - locomo_writel(bpwf, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); - udelay(100); - locomo_writel(duty, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD); - locomo_writel(bpwf | LCM_ALC_EN, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); - spin_unlock_irqrestore(&lchip->lock, flags); -} - - /** * locomo_probe - probe for a single LoCoMo chip. * @phys_addr: physical address of device. @@ -698,14 +683,10 @@ __locomo_probe(struct device *me, struct resource *mem, int irq) , lchip->base + LOCOMO_GPD); locomo_writel(0, lchip->base + LOCOMO_GIE); - /* FrontLight */ + /* Frontlight */ locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD); - /* Same constants can be used for collie and poodle - (depending on CONFIG options in original sharp code)? */ - frontlight_set(lchip, 163, 0, 148); - /* Longtime timer */ locomo_writel(0, lchip->base + LOCOMO_LTINT); /* SPI */ @@ -1062,6 +1043,30 @@ void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int spin_unlock_irqrestore(&lchip->lock, flags); } +/* + * Frontlight control + */ + +static struct locomo *locomo_chip_driver(struct locomo_dev *ldev); + +void locomo_frontlight_set(struct locomo_dev *dev, int duty, int vr, int bpwf) +{ + unsigned long flags; + struct locomo *lchip = locomo_chip_driver(dev); + + if (vr) + locomo_gpio_write(dev, LOCOMO_GPIO_FL_VR, 1); + else + locomo_gpio_write(dev, LOCOMO_GPIO_FL_VR, 0); + + spin_lock_irqsave(&lchip->lock, flags); + locomo_writel(bpwf, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); + udelay(100); + locomo_writel(duty, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD); + locomo_writel(bpwf | LOCOMO_ALC_EN, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS); + spin_unlock_irqrestore(&lchip->lock, flags); +} + /* * LoCoMo "Register Access Bus." * diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index b895eaaa73f..02f15297a02 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -50,6 +50,14 @@ config BACKLIGHT_CORGI If you have a Sharp Zaurus SL-C7xx, SL-Cxx00 or SL-6000x say y to enable the backlight driver. +config BACKLIGHT_LOCOMO + tristate "Sharp LOCOMO LCD/Backlight Driver" + depends on BACKLIGHT_DEVICE && SHARP_LOCOMO + default y + help + If you have a Sharp Zaurus SL-5500 (Collie) or SL-5600 (Poodle) say y to + enable the LCD/backlight driver. + config BACKLIGHT_HP680 tristate "HP Jornada 680 Backlight Driver" depends on BACKLIGHT_DEVICE && SH_HP6XX diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index 744210c38e7..65e5553fc84 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -4,4 +4,4 @@ obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o -obj-$(CONFIG_SHARP_LOCOMO) += locomolcd.o +obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomolcd.o diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c index 60831bb2368..bd879b7ec11 100644 --- a/drivers/video/backlight/locomolcd.c +++ b/drivers/video/backlight/locomolcd.c @@ -17,6 +17,8 @@ #include #include #include +#include +#include #include #include @@ -25,7 +27,10 @@ #include "../../../arch/arm/mach-sa1100/generic.h" +static struct backlight_device *locomolcd_bl_device; static struct locomo_dev *locomolcd_dev; +static unsigned long locomolcd_flags; +#define LOCOMOLCD_SUSPENDED 0x01 static void locomolcd_on(int comadj) { @@ -89,12 +94,10 @@ void locomolcd_power(int on) } /* read comadj */ - if (comadj == -1) { - if (machine_is_poodle()) - comadj = 118; - if (machine_is_collie()) - comadj = 128; - } + if (comadj == -1 && machine_is_collie()) + comadj = 128; + if (comadj == -1 && machine_is_poodle()) + comadj = 118; if (on) locomolcd_on(comadj); @@ -105,26 +108,100 @@ void locomolcd_power(int on) } EXPORT_SYMBOL(locomolcd_power); -static int poodle_lcd_probe(struct locomo_dev *dev) + +static int current_intensity; + +static int locomolcd_set_intensity(struct backlight_device *bd) +{ + int intensity = bd->props->brightness; + + if (bd->props->power != FB_BLANK_UNBLANK) + intensity = 0; + if (bd->props->fb_blank != FB_BLANK_UNBLANK) + intensity = 0; + if (locomolcd_flags & LOCOMOLCD_SUSPENDED) + intensity = 0; + + switch (intensity) { + /* AC and non-AC are handled differently, but produce same results in sharp code? */ + case 0: locomo_frontlight_set(locomolcd_dev, 0, 0, 161); break; + case 1: locomo_frontlight_set(locomolcd_dev, 117, 0, 161); break; + case 2: locomo_frontlight_set(locomolcd_dev, 163, 0, 148); break; + case 3: locomo_frontlight_set(locomolcd_dev, 194, 0, 161); break; + case 4: locomo_frontlight_set(locomolcd_dev, 194, 1, 161); break; + + default: + return -ENODEV; + } + current_intensity = intensity; + return 0; +} + +static int locomolcd_get_intensity(struct backlight_device *bd) +{ + return current_intensity; +} + +static struct backlight_properties locomobl_data = { + .owner = THIS_MODULE, + .get_brightness = locomolcd_get_intensity, + .update_status = locomolcd_set_intensity, + .max_brightness = 4, +}; + +#ifdef CONFIG_PM +static int locomolcd_suspend(struct locomo_dev *dev, pm_message_t state) +{ + locomolcd_flags |= LOCOMOLCD_SUSPENDED; + locomolcd_set_intensity(locomolcd_bl_device); + return 0; +} + +static int locomolcd_resume(struct locomo_dev *dev) +{ + locomolcd_flags &= ~LOCOMOLCD_SUSPENDED; + locomolcd_set_intensity(locomolcd_bl_device); + return 0; +} +#else +#define locomolcd_suspend NULL +#define locomolcd_resume NULL +#endif + +static int locomolcd_probe(struct locomo_dev *dev) { unsigned long flags; local_irq_save(flags); locomolcd_dev = dev; + locomo_gpio_set_dir(dev, LOCOMO_GPIO_FL_VR, 0); + /* the poodle_lcd_power function is called for the first time * from fs_initcall, which is before locomo is activated. * We need to recall poodle_lcd_power here*/ -#ifdef CONFIG_MACH_POODLE - locomolcd_power(1); -#endif + if (machine_is_poodle()) + locomolcd_power(1); + local_irq_restore(flags); + + locomolcd_bl_device = backlight_device_register("locomo-bl", NULL, &locomobl_data); + + if (IS_ERR (locomolcd_bl_device)) + return PTR_ERR (locomolcd_bl_device); + + /* Set up frontlight so that screen is readable */ + locomobl_data.brightness = 2; + locomolcd_set_intensity(locomolcd_bl_device); + return 0; } -static int poodle_lcd_remove(struct locomo_dev *dev) +static int locomolcd_remove(struct locomo_dev *dev) { unsigned long flags; + + backlight_device_unregister(locomolcd_bl_device); local_irq_save(flags); locomolcd_dev = NULL; local_irq_restore(flags); @@ -136,19 +213,33 @@ static struct locomo_driver poodle_lcd_driver = { .name = "locomo-backlight", }, .devid = LOCOMO_DEVID_BACKLIGHT, - .probe = poodle_lcd_probe, - .remove = poodle_lcd_remove, + .probe = locomolcd_probe, + .remove = locomolcd_remove, + .suspend = locomolcd_suspend, + .resume = locomolcd_resume, }; -static int __init poodle_lcd_init(void) + +static int __init locomolcd_init(void) { int ret = locomo_driver_register(&poodle_lcd_driver); - if (ret) return ret; + if (ret) + return ret; #ifdef CONFIG_SA1100_COLLIE sa1100fb_lcd_power = locomolcd_power; #endif return 0; } -device_initcall(poodle_lcd_init); +static void __exit locomolcd_exit(void) +{ + locomo_driver_unregister(&poodle_lcd_driver); +} + +module_init(locomolcd_init); +module_exit(locomolcd_exit); + +MODULE_AUTHOR("John Lenz , Pavel Machek "); +MODULE_DESCRIPTION("Collie LCD driver"); +MODULE_LICENSE("GPL"); diff --git a/include/asm-arm/hardware/locomo.h b/include/asm-arm/hardware/locomo.h index 5f10048ec54..22dfb173776 100644 --- a/include/asm-arm/hardware/locomo.h +++ b/include/asm-arm/hardware/locomo.h @@ -111,6 +111,8 @@ #define LOCOMO_ALS 0x00 /* Adjust light cycle */ #define LOCOMO_ALD 0x04 /* Adjust light duty */ +#define LOCOMO_ALC_EN 0x8000 + /* Backlight controller: TFT signal */ #define LOCOMO_BACKLIGHT 0x38 #define LOCOMO_TC 0x00 /* TFT control signal */ @@ -203,4 +205,7 @@ void locomo_gpio_write(struct locomo_dev *ldev, unsigned int bits, unsigned int /* M62332 control function */ void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel); +/* Frontlight control */ +void locomo_frontlight_set(struct locomo_dev *dev, int duty, int vr, int bpwf); + #endif -- cgit v1.2.3 From 31c5cdba69c3c6e9bb1aaf15870f5c23402267e0 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 26 Jun 2006 00:26:28 -0700 Subject: [PATCH] fbdev: cleanup the CONFIG_VIDEO_SELECT mess We had three (sic) VIDEO_SELECT options: - two in drivers/video/Kconfig - one in drivers/video/console/Kconfig This patch removes the two options in drivers/video/Kconfig and also removes the unneeded usage in drivers/video/sis/sis_main.c . Signed-off-by: Adrian Bunk Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/Kconfig | 11 ----------- drivers/video/sis/sis_main.c | 2 +- 2 files changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 168ede7902b..90cd5587d4e 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -551,11 +551,6 @@ config FB_VESA You will get a boot time penguin logo at no additional cost. Please read . If unsure, say Y. -config VIDEO_SELECT - bool - depends on FB_VESA - default y - config FB_HGA tristate "Hercules mono graphics support" depends on FB && X86 @@ -578,12 +573,6 @@ config FB_HGA_ACCEL This will compile the Hercules mono graphics with acceleration functions. - -config VIDEO_SELECT - bool - depends on (FB = y) && X86 - default y - config FB_SGIVW tristate "SGI Visual Workstation framebuffer support" depends on FB && X86_VISWS diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c index 8adf5bf91ee..c63c0e721b8 100644 --- a/drivers/video/sis/sis_main.c +++ b/drivers/video/sis/sis_main.c @@ -275,7 +275,7 @@ sisfb_search_mode(char *name, BOOLEAN quiet) static void __devinit sisfb_get_vga_mode_from_kernel(void) { -#if (defined(__i386__) || defined(__x86_64__)) && defined(CONFIG_VIDEO_SELECT) +#ifdef CONFIG_X86 char mymode[32]; int mydepth = screen_info.lfb_depth; -- cgit v1.2.3 From 22f4a00fd5207a107fb81984f7b4cc09e5047b45 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 26 Jun 2006 00:26:28 -0700 Subject: [PATCH] fbdev: Remove duplicate #include's Remove unneeded duplicate #include's of the same header file. In the case of fbmon.c linux/pci.h is now #include'd unconditional, but this should be safe. Signed-off-by: Adrian Bunk Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/fbmem.c | 2 -- drivers/video/fbmon.c | 3 +-- drivers/video/tgafb.c | 1 - 3 files changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 372aa177682..9bb6763d0cb 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -34,7 +34,6 @@ #endif #include #include -#include #include #include @@ -162,7 +161,6 @@ char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size } #ifdef CONFIG_LOGO -#include static inline unsigned safe_shift(unsigned d, int n) { diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c index 53beeb4a999..fbbcb7156a3 100644 --- a/drivers/video/fbmon.c +++ b/drivers/video/fbmon.c @@ -29,9 +29,9 @@ #include #include #include +#include #include