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2008-04-25Add option to enable -Wframe-larger-than= on gcc 4.4Andi Kleen
Add option to enable -Wframe-larger-than= on gcc 4.4 gcc mainline (upcoming 4.4) added a new -Wframe-larger-than=... option to warn at build time about too large stack frames. Add a config option to enable this warning, since this very useful for the kernel. I choose (somewhat arbitarily) 2048 as default warning threshold for 64bit and 1024 as default for 32bit architectures. With some research and fixing all the code for smaller values these defaults should be probably lowered. With the default allyesconfigs have some new warnings, but I think that is all code that should be just fixed. At some point (when gcc 4.4 is released and widely used) this should obsolete make checkstack Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-25kbuild: add kconfig symbols to tags outputAlexey Dobriyan
Steps to reproduce: vi -t NETFILTER Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-25kbuild: fix some minor typoesRobert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-25kbuild: error out on missing MODULE_LICENSESam Ravnborg
Adrian Bunk suggested a build time check for missing MODULE_LICENSE annotation in modules. The build time check is fatal as we really want this fixed for all modules. In-tree modules should all have been fixed up by now. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@kernel.org>
2008-04-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes: "make namespacecheck" fixes x86: fix compilation error in VisWS x86: voyager fix x86: Drop duplicate from setup.c intel-iommu.c: dma ops fix
2008-04-24"make namespacecheck" fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24x86: fix compilation error in VisWSAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24x86: voyager fixIngo Molnar
Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24x86: Drop duplicate from setup.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24intel-iommu.c: dma ops fixIngo Molnar
Stephen Rothwell noticed that: Commit 2be621498d461b63ca6124f86e3b9582e1a8e722 ("x86: dma-ops on highmem fix") in Linus' tree introduced a new warning (noticed in the x86_64 allmodconfig build of linux-next): drivers/pci/intel-iommu.c:2240: warning: initialization from incompatible pointer type Which points at an instance of map_single that needs updating. Fix it to the new prototype. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] Fix typo in previous commit [CIFS] Fix define for new proxy cap to match documentation [CIFS] Fix UNC path prefix on QueryUnixPathInfo to have correct slash [CIFS] Reserve new proxy cap for WAFS [CIFS] Add various missing flags and defintions [CIFS] make cifs_dfs_automount_list_static [CIFS] Fix oops when slow oplock process races with unmount [CIFS] Fix acl length when very short ACL being modified by chmod [CIFS] Fix looping on reconnect to Samba when unexpected tree connect fail on reconnect [CIFS] minor update to change log
2008-04-24RxRPC: Fix a regression in the RXKAD security moduleDavid Howells
Fix a regression in the RXKAD security module introduced in: commit 91e916cffec7c0153c5cbaa447151862a7a9a047 Author: Al Viro <viro@ftp.linux.org.uk> Date: Sat Mar 29 03:08:38 2008 +0000 net/rxrpc trivial annotations A variable was declared as a 16-bit type rather than a 32-bit type. Signed-off-by: David Howells <dhowells@redhat.com> Acked-with-apologies-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-of-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-24Remove -numa from EXTRAVERSIONSebastian Siewior
This snuck in through 919ee677b656c52c5f86d3d916786891220d5452 ("[SPARC64]: Add NUMA support") Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-24Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (80 commits) SUNRPC: Invalidate the RPCSEC_GSS session if the server dropped the request make nfs_automount_list static NFS: remove duplicate flags assignment from nfs_validate_mount_data NFS - fix potential NULL pointer dereference v2 SUNRPC: Don't change the RPCSEC_GSS context on a credential that is in use SUNRPC: Fix a race in gss_refresh_upcall() SUNRPC: Don't disconnect more than once if retransmitting NFSv4 requests SUNRPC: Remove the unused export of xprt_force_disconnect SUNRPC: remove XS_SENDMSG_RETRY SUNRPC: Protect creds against early garbage collection NFSv4: Attempt to use machine credentials in SETCLIENTID calls NFSv4: Reintroduce machine creds NFSv4: Don't use cred->cr_ops->cr_name in nfs4_proc_setclientid() nfs: fix printout of multiword bitfields nfs: return negative error value from nfs{,4}_stat_to_errno NLM/lockd: Ensure client locking calls use correct credentials NFS: Remove the buggy lock-if-signalled case from do_setlk() NLM/lockd: Fix a race when cancelling a blocking lock NLM/lockd: Ensure that nlmclnt_cancel() returns results of the CANCEL call NLM: Remove the signal masking in nlmclnt_proc/nlmclnt_cancel ...
2008-04-24Merge branch 'for-linus' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-linus' of git://linux-nfs.org/~bfields/linux: (52 commits) knfsd: clear both setuid and setgid whenever a chown is done knfsd: get rid of imode variable in nfsd_setattr SUNRPC: Use unsigned loop and array index in svc_init_buffer() SUNRPC: Use unsigned index when looping over arrays SUNRPC: Update RPC server's TCP record marker decoder SUNRPC: RPC server still uses 2.4 method for disabling TCP Nagle NLM: don't let lockd exit on unexpected svc_recv errors (try #2) NFS: don't let nfs_callback_svc exit on unexpected svc_recv errors (try #2) Use a zero sized array for raw field in struct fid nfsd: use static memory for callback program and stats SUNRPC: remove svc_create_thread() nfsd: fix comment lockd: Fix stale nlmsvc_unlink_block comment NFSD: Strip __KERNEL__ testing from unexported header files. sunrpc: make token header values less confusing gss_krb5: consistently use unsigned for seqnum NFSD: Remove NFSv4 dependency on NFSv3 SUNRPC: Remove PROC_FS dependency NFSD: Use "depends on" for PROC_FS dependency nfsd: move most of fh_verify to separate function ...
2008-04-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvbLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (452 commits) V4L/DVB (7731): tuner-xc2028: fix signal strength calculus V4L/DVB (7730): tuner-xc2028: Fix SCODE load for MTS firmwares V4L/DVB (7729): Fix VIDIOCGAP corruption in ivtv V4L/DVB (7728): tea5761: bugzilla #10462: tea5761 autodetection code were broken V4L/DVB (7726): cx23885: Enable cx23417 support on the HVR1800 V4L/DVB (7725): cx23885: Add generic cx23417 hardware encoder support V4L/DVB (7723): pvrusb2: Clean up input selection list generation in V4L interface V4L/DVB (7722): pvrusb2: Implement FM radio support for Gotview USB2.0 DVD 2 V4L/DVB (7721): pvrusb2: Restructure cx23416 firmware loading to have a common exit point V4L/DVB (7720): pvrusb2: Fix bad error code on cx23416 firmware load failure V4L/DVB (7719): pvrusb2: Implement input selection enforcement V4L/DVB (7718): pvrusb2-dvb: update Kbuild selections V4L/DVB (7717): pvrusb2-dvb: add DVB-T support for Hauppauge pvrusb2 model 73xxx V4L/DVB (7716): pvrusb2: clean up global functions V4L/DVB (7715): pvrusb2: Clean out all use of __FUNCTION__ V4L/DVB (7714): pvrusb2: Fix hang on module removal V4L/DVB (7713): pvrusb2: Implement cleaner DVB kernel thread shutdown V4L/DVB (7712): pvrusb2: Close connect/disconnect race V4L/DVB (7711): pvrusb2: Fix race on module unload V4L/DVB (7710): pvrusb2: Implement critical digital streaming quirk for onair devices ...
2008-04-24Merge branch 'devel'Trond Myklebust
2008-04-24SUNRPC: Invalidate the RPCSEC_GSS session if the server dropped the requestTrond Myklebust
RFC 2203 requires the server to drop the request if it believes the RPCSEC_GSS context is out of sequence. The problem is that we have no way on the client to know why the server dropped the request. In order to avoid spinning forever trying to resend the request, the safe approach is therefore to always invalidate the RPCSEC_GSS context on every major timeout. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-04-24V4L/DVB (7731): tuner-xc2028: fix signal strength calculusMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7730): tuner-xc2028: Fix SCODE load for MTS firmwaresMauro Carvalho Chehab
There are different tables for MTS firmwares. This should be taken into account while selecting the proper firmware. While at tuner-xc2028.h, improve some comments. Thanks to Edward J. Sheldrake <ejs1920@yahoo.co.uk> for helping to diagnose such troubles with PAL/I standard. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7729): Fix VIDIOCGAP corruption in ivtvAlan Cox
Frank Bennett reported that ivtv was causing skype to crash. With help from one of their developers he showed it was a kernel problem. VIDIOCGCAP copies a name into a fixed length buffer - ivtv uses names that are too long and does not truncate them so corrupts a few bytes of the app data area. Possibly the names also want trimming but for now this should fix the corruption case. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7728): tea5761: bugzilla #10462: tea5761 autodetection code were brokenMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7726): cx23885: Enable cx23417 support on the HVR1800Steven Toth
cx23885: Enable cx23417 support on the HVR1800 Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7725): cx23885: Add generic cx23417 hardware encoder supportSteven Toth
cx23885: Add generic cx23417 hardware encoder support. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7723): pvrusb2: Clean up input selection list generation in V4L ↵Mike Isely
interface Change how list of possible pvrusb2 inputs is generated to include only those interfaces that make sense for the interface instance. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7722): pvrusb2: Implement FM radio support for Gotview USB2.0 DVD 2Mike Isely
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7721): pvrusb2: Restructure cx23416 firmware loading to have a ↵Mike Isely
common exit point Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7720): pvrusb2: Fix bad error code on cx23416 firmware load failureMike Isely
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7719): pvrusb2: Implement input selection enforcementMike Isely
In the pvrusb2 driver, different interfaces (e.g. V4L, DVB) have Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7718): pvrusb2-dvb: update Kbuild selectionsMichael Krufky
These changes are required with the addition of digital television support for the Hauppauge HVR1900 & HVR1950, the OnAir Creator and Sasem USB HDTV Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7717): pvrusb2-dvb: add DVB-T support for Hauppauge pvrusb2 model 73xxxMichael Krufky
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7716): pvrusb2: clean up global functionsAdrian Bunk
This patch contains the following cleanups: - make the following needlessly global function static: - pvr2_hdw_set_cur_freq() - #if 0 the following unused global functions: - pvr2_hdw_get_state_name() - pvr2_hdw_get_debug_info_unlocked() - pvr2_hdw_get_debug_info_locked() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7715): pvrusb2: Clean out all use of __FUNCTION__Mike Isely
Apparently the kernel developers no longer consider it proper etiquette to use __FUNCTION__; everyone must instead use __func__ (even though it breaks with older compilers). And worse still, actual effort is being expended to sweep this change throughout the kernel source tree. Don't these people have better things to do? So... Completely clean out all use of __FUNCTION__ from the pvrusb2 driver (it was just in the sysfs interface). I'm not going to use __func__ either. So there. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7714): pvrusb2: Fix hang on module removalMike Isely
The pvrusb2 driver was getting had by this scenario: 1. Task A calls kthread_stop() for task B. 2. Before exiting, then Task B calls kthread_stop() for task C. The problem is, kthread_stop() wants to allocate an internal resource to itself (i.e. acquire a lock), which won't be released until kthread_stop() returns. But kthread_stop() won't return until task B is dead. But task B won't die until it finishes its call to kthread_stop() for task C, and that will block waiting on the resource already allocated inside task A. Deadlock. With the pvrusb2 driver, task A is the caller to pvr_exit(), task B is the control thread run inside of pvrusb2-context.c, and task C is any worker thread run inside of pvrusb2-hdw.c. This problem got introduced by the previous threading setup change, which was itself an attempt to fix a module tear-down race (which it actually did fix). The lesson here is that a task being waited on as part of a kthread_stop() simply cannot be allow to also issue a kthread_stop() - or we make sure not to issue the enclosing kthread_stop() until we know that the inner kthread_stop() has completed first. The solution for the pvrusb2 driver is some hackish code which changes the main control thread tear down into a two step process. This then makes it possible to delay issuing the kthread_stop() on the control thread until after we know that everything has been torn down first. (And yes, we really need that kthread_stop() because it's the only way to safely guarantee that a module-referencing kernel thread has safely returned back out of the module before we finally remove the module.) Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7713): pvrusb2: Implement cleaner DVB kernel thread shutdownMike Isely
Earlier fix to handle DVB feed thread aborts was overly-aggressive. We can take better advantage of what kthread_stop() can do. This change simplifies things. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7712): pvrusb2: Close connect/disconnect raceMike Isely
If a disconnect happens before initialization is completed, the pvrusb2 driver can accidentally touch dangling pointers. The whole initialization function must be protected by the big_lock, and once inside that lock, the initialization function should abort if it is discovered that a disconnect has already taken place. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7711): pvrusb2: Fix race on module unloadMike Isely
The pvrusb2 driver - for basically forever - was not enforcing a proper module tear-down. Kernel threads are used inside the driver and all must be gone before the module can be safely removed. This changeset reimplements a chunk of pvrusb2-context.c to enforce this correctly. Unfortunately this is not a simple fix. The new implementation also cuts back on kernel thread usage; instead of there being 1 control thread per instance now it's just 1 control thread shared by all instances. (By dropping to a single thread then the module exit function can block on its shutdown and the thread itself can monitor and cleanly shut down all of the other instances first.) Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7710): pvrusb2: Implement critical digital streaming quirk for ↵Mike Isely
onair devices Implement timed measurement of encoder operation for the first time it is run. This allows the driver to note when the encoder has been run successfully for at least 1/4 second. On top of that implement various bits to ensure that the encoder has been run once before digital streaming for OnAir devices. This is done via several core state machine tweaks. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7709): pvrusb2: New device attribute for encoder usage in digital modeMike Isely
Some tuners seem to not work in digital mode unless the encoder is healthy. Implement a device attribute to represent this flag and modify the core state machines to enforce this requirement. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7708): pvrusb2-dvb: Fix stuck thread on streaming abortMike Isely
If the device fails to stream, the feed thread will block forever waiting for buffers. But while in this state it was not looking for an exit condition from the driver DVB interface. This caused the thread to jam. Implement a new stop flag (which will be set appropriately) to tell the thread to stop. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7707): pvrusb2-dvb: add atsc/qam support for Hauppauge pvrusb2 ↵Michael Krufky
model 750xx Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7706): pvrusb2: create a separate pvr2_device_desc structure for ↵Michael Krufky
751xx models Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7705): pvrusb2: Enable OnAir digital operationMichael Krufky
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7704): pvrusb2: Fix slop involving use of struct which might not be ↵Mike Isely
defined When the DVB interface is not compiled, the pvr2_dvb_props struct is not available - so it really should be ifdef'ed out as well. This didn't cause an error because in this context its usage was as an opaque pointer. But it really shouldn't be present at all if DVB is not enabled. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7703): pvrusb2: Fix minor problem involving ARRAY_SIZE confusionMike Isely
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7702): pvrusb2: Rework USB streaming start/stop executionMike Isely
The commands to start / stop USB streaming for an analog device are fairly standard, owing to the fact that all supported devices apparently started from the same common reference design. However with digital mode, the commands seem to vary by vendor. This change makes that variance more explicit. It also cleans up a related problem for OnAir devices which prevented digital mode from working at all. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7701): pvrusb2: Centralize handling of simple FX2 commandsMike Isely
Numerous places in the driver need to issue simple commands to the FX2 microcontroller (e.g. only 1 or 2 bytes, no reply needed). Previously each place that did this, had to take lock, set up a central buffer, and call the function to perform the handshake. This change puts these steps into a single spot. This also has the effect of removing the need to mess with the control lock from numerous places in the code. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7700): pvrusb2: Make FX2 command codes unsigned constantsMike Isely
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7699): pvrusb2: Implement statistics for USB I/O performance / trackingMike Isely
Implement a mechanism in the pvrusb2 driver for gathering statistics on the stream buffering, including bytes transferred, buffers handled, buffers in flight, etc. This is useful for debugging certain classes of streaming issues and for determining if the buffer pool size is generally correct for the driver. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-24V4L/DVB (7698): pvrusb2: Remove never-reached break statements (trivial)Mike Isely
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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