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2007-04-27IEEE1394: remove rwsem use from ieee1394 coreGreg Kroah-Hartman
The subsystem rwsem is not used by the driver core at all, so the use of it in the ieee1394 code doesn't make any sense. They might possibly want to use a local lock, but as most of these operations are already protected by a local lock, it really doesn't look like it would be needed. Cc: Ben Collins <bcollins@debian.org> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: linux1394-devel <linux1394-devel@lists.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27uevent: use add_uevent_var() instead of open coding itEric Rannaud
Make use of add_uevent_var() instead of (often incorrectly) open coding it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Eric Rannaud <eric.rannaud@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-25[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iphArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_mac_header()Arnaldo Carvalho de Melo
For the places where we need a pointer to the mac header, it is still legal to touch skb->mac.raw directly if just adding to, subtracting from or setting it to another layer header. This one also converts some more cases to skb_reset_mac_header() that my regex missed as it had no spaces before nor after '=', ugh. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_reset_mac_header(skb)Arnaldo Carvalho de Melo
For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can later turn skb->mac.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple case, next will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-09ieee1394: change deprecation status of dv1394Stefan Richter
Nobody ported ffmpeg from dv1394 to rawiso yet, and there is no justification to remove dv1394 right now. Nevertheless, a strong deprecation of this ABI makes a lot of sense, especially as Kristian H's drivers shape up to be an attractive alternative to the existing ones. But we don't have a schedule at the moment. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-03-23ieee1394: fix oops on "modprobe -r ohci1394" after network class_device ↵Stefan Richter
conversion The networking subsystem has been converted from class_device to device but ieee1394 hasn't. This results in a 100% reproducible NULL pointer dereference if the ohci1394 driver module is unloaded while the eth1394 module is still loaded. http://lkml.org/lkml/2006/11/16/147 http://lkml.org/lkml/2007/3/14/4 This is a regression in 2.6.21-rc1. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by: Ismail Dönmez <ismail@pardus.org.tr>
2007-02-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (25 commits) Documentation/kernel-docs.txt update. arch/cris: typo in KERN_INFO Storage class should be before const qualifier kernel/printk.c: comment fix update I/O sched Kconfig help texts - CFQ is now default, not AS. Remove duplicate listing of Cris arch from README kbuild: more doc. cleanups doc: make doc. for maxcpus= more visible drivers/net/eexpress.c: remove duplicate comment add a help text for BLK_DEV_GENERIC correct a dead URL in the IP_MULTICAST help text fix the BAYCOM_SER_HDX help text fix SCSI_SCAN_ASYNC help text trivial documentation patch for platform.txt Fix typos concerning hierarchy Fix comment typo "spin_lock_irqrestore". Fix misspellings of "agressive". drivers/scsi/a100u2w.c: trivial typo patch Correct trivial typo in log2.h. Remove useless FIND_FIRST_BIT() macro from cardbus.c. ...
2007-02-19Merge branch 'for-linus' of ↵Linus Torvalds
ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: fix another deadlock in nodemgr ieee1394: cycle timer read extension for raw1394
2007-02-17Storage class should be before const qualifierTobias Klauser
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-02-17ieee1394: fix another deadlock in nodemgrStefan Richter
A "modprobe ohci1394; sleep 1.5; modprobe -r ohci1394" could get stuck in uninterruptible state, especially if an external node was connected. http://bugzilla.kernel.org/show_bug.cgi?id=7792 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-17ieee1394: cycle timer read extension for raw1394Pieter Palmers
This implements the simultaneous read of the isochronous cycle timer and the system clock (in usecs). This allows to express the exact receive time of an ISO packet as a system time with microsecond accuracy. http://bugzilla.kernel.org/show_bug.cgi?id=7773 The counterpart patch for libraw1394 can be found at http://thread.gmane.org/gmane.linux.kernel.firewire.devel/8934 Patch update (Stefan R.): Disable preemption and local interrupts. Prevent integer overflow. Add paranoid error checks and kerneldoc to hpsb_read_cycle_timer. Move it to other ieee1394_core high-level API functions. Change comments. Adjust whitespace. Rename struct _raw1394_cycle_timer. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Pieter Palmers <pieterp@joow.be> Acked-by: Dan Dennedy <dan@dennedy.org>
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-13i2c: Declare more i2c_adapter parent devicesJean Delvare
Declare the parent device of i2c_adapter devices each time we can easily do so. It makes the i2c_adapter appear at the right place in the device tree, rather than as a platform device. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Len Brown <len.brown@intel.com> Cc: Jordan Crouse <jordan.crouse@amd.com> Cc: Jody McIntyre <scjody@modernduck.com> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: v4l-dvb-maintainer@linuxtv.org Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
2007-02-12[PATCH] mark struct file_operations const 3Arjan van de Ven
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-08ieee1394: fix host device registering when nodemgr disabledStefan Richter
Since my commit 8252bbb1363b7fe963a3eb6f8a36da619a6f5a65 in 2.6.20-rc1, host devices have a dummy driver attached. Alas the driver was not registered before use if ieee1394 was loaded with disable_nodemgr=1. This resulted in non-functional FireWire drivers or kernel lockup. http://bugzilla.kernel.org/show_bug.cgi?id=7942 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: video1394: DMA fixDavid Moore
This together with the phys_to_virt fix in lib/swiotlb.c::swiotlb_sync_sg fixes video1394 DMA on machines with DMA bounce buffers, especially Intel x86-64 machines with > 3GB RAM. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: David Moore <dcm@acm.org> Tested-by: Nicolas Turro <Nicolas.Turro@inrialpes.fr>
2007-02-08ieee1394: raw1394: prevent unloading of low-level driverStefan Richter
Unloading the low-level driver module of a FireWire host can lead to all sorts of trouble if a raw1394 userspace client is using the host. Just disallow it by incrementing the LLD's module reference count on a RAW1394_REQ_SET_CARD write operation. Decrement it when the file is closed. This feature wouldn't be relevant if "modprobe -r video1394" or "modprobe -r dv1394" didn't automatically unload ohci1394 too. http://bugzilla.kernel.org/show_bug.cgi?id=7701 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Dan Dennedy <dan@dennedy.org>
2007-02-08ieee1394: dv1394: tidy up card removalStefan Richter
small coding style touch-up and terser coding Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: dv1394: fix CardBus card ejectionStefan Richter
Fix NULL pointer dereference on hot ejection of a FireWire card while dv1394 was loaded. http://bugzilla.kernel.org/show_bug.cgi?id=7121 I did not test card ejection with open /dev/dv1394 files yet. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: sbp2: lower block queue alignment requirementStefan Richter
The old setting is copy & waste from usb-storage and doesn't apply to sbp2. There is only 4-byte alignment required for everything, except for S/G table elements which have to be 8-byte aligned according to the SBP-2 spec. (They happen to be ____cacheline_aligned in our implementation. Whether that's good is another question.) We now simply don't tune block queue alignment at all. The default alignment would surely never become anything else than a multiple of 4, else tons of calls to blk_queue_dma_alignment would have to be added everywhere in drivers/... Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: sbp2: remove bogus "emulated" host flagStefan Richter
There is no emulation going on here. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: save one word in struct hpsb_hostStefan Richter
hpsb_host.config_roms is a bitfield of which only one bit is currently used. hpsb_host.update_config_rom is only a Boolean. Neither one is accessed in hot code paths or with alignment requirements. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: restore config ROM when resumingStefan Richter
After PM suspend + resume, the local configuration ROM was not restored. This prevented remote nodes from recognizing the resuming machine. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: ohci1394: drop pcmcia-cs compatibility codeStefan Richter
#ifdef PCMCIA is only true if compiled inside pcmcia-cs, isn't it? Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: nodemgr: check info_length in ROM header earlierStefan Richter
The whole ROM area which is covered by the crc_length field of the ROM header was fetched before the info_length field was checked for correct general ROM format. This might be wasteful or even dangerous with nodes with minimal ROM, nonstandard ROM, or corrupt ROM. Perform this check at the earliest opportunity. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08the scheduled IEEE1394_OUI_DB removalAdrian Bunk
This patch contains the scheduled IEEE1394_OUI_DB removal. Signed-off-by: Adrian Bunk <bunk@stusta.de> Update: Also remove drivers/ieee1394/.gitignore. Remove now unused struct members in drivers/ieee1394/nodemgr.h. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08the scheduled IEEE1394_EXPORT_FULL_API removalAdrian Bunk
This patch contains the scheduled IEEE1394_EXPORT_FULL_API removal. Signed-off-by: Adrian Bunk <bunk@stusta.de> Update: Pull proper portion of feature-removal-schedule.txt. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: sbp2: use a better wildcard for blacklistStefan Richter
0x000000 could be a valid value to match against, but anything bigger than 0xffffff cannot. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08Add PCI class ID for firewire OHCI controllers.Kristian Høgsberg
Pull this define out of drivers/ieee1394/ohci1394.c and rename to match other PCI class defines. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-02-08ieee1394: modified csr1212_key_id_type_map to support lisightAndrea Guzzo
This patch applies a little change in csr1212.c to fix iSight (firewire digital camera) related issues (but maybe other firewire devices could also need such modification) The actual implementation of the "csr1212_key_id_type_map" table doesn't support some node types used by the iSight for the audio unit. This limit makes the csr scanning routine to never see the audio unit node , and consequently the iSight driver probe() routine to be never called and there is no way to hook an isight device when it is inserted. Signed-off-by: Andrea Guzzo <xant@xant.net> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-01-10ieee1394: sbp2: fix probing of some DVD-ROM/RWsStefan Richter
Since commit 98e238cd42be6c0852da519303cf0182690f8d9f in Linux 2.6.19, "ieee1394: sbp2: don't prefer MODE SENSE 10", some FireWire DVD-ROMs and DVD-RWs were mistaken as CD-ROM because sr_mod now sent MODE SENSE 6. The MMC command set includes only MODE SENSE 10. http://bugzilla.kernel.org/show_bug.cgi?id=7800 This fix lets sbp2 switch scsi_device.use_10_for_rw on for MMC LUs. This should rather be done in the command set driver sr_mod, not in the sbp2 transport driver, and an according patch will follow for a next Linux release. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-30ieee1394: sbp2: fix bogus dma mappingStefan Richter
Need to use a PCI device, not a FireWire host device. Problem found by Andreas Schwab, mistake pointed out by Benjamin Herrenschmidt. http://ozlabs.org/pipermail/linuxppc-dev/2006-December/029595.html Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by: Andreas Schwab <schwab@suse.de>
2006-12-30ieee1394: sbp2: pass REQUEST_SENSE through to the targetStefan Richter
Delete some incorrect code, left over from the initial driver submission in March 2001. SBP-2 targets should provide sense data via the SBP-2 status block (autosense). We have to pass the REQUEST_SENSE command through to targets which don't implement autosense, if there are any, and to accomodate application clients which use this command. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-10i2c: Discard the i2c algo del_bus wrappersJean Delvare
They are all only calling i2c_del_adapter, so we may as well do it directly. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-12-08[PATCH] struct path: convert ieee1394Josef Sipek
Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07ieee1394: sbp2: code formatting around work_struct stuffStefan Richter
Merge is finished, can bring the code in readable style again. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: nodemgr: remove a kcallocStefan Richter
Was I sleepwalking when I wrote this? Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: conditionally export ieee1394_bus_typeStefan Richter
Follow-up to patch "Consolidate driver registering": Since I plan the lifetime of Linux 2.6.20 to be the deprecation phase of CONFIG_IEEE1394_EXPORT_FULL_API, it seems fair to keep all previously exported symbols available with this option until this phase is over. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: Consolidate driver registeringBen Collins
This patch consolidates some bookkeeping for driver registering. It closely models what pci_register_driver() does. The main addition is that the owner of the driver is set, so we get a proper symlink for /sys/bus/ieee1394/driver/*/module. Also moves setting of name and bus type into nodemgr. Because of this, we can remove the EXPORT_SYMBOL for ieee1394_bus_type, since it's now only used in ieee1394.ko. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: sbp2: convert from PCI DMA to generic DMAStefan Richter
API conversion without change in functionality Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: nodemgr: spaces to tabsStefan Richter
whitespace pedantry Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: nodemgr: fix deadlock in shutdownStefan Richter
If "modprobe ohci1394" was quickly followed by "modprobe -r ohci1394", say with 1 second pause in between, the modprobe -r got stuck in uninterruptible sleep in kthread_stop. At the same time the knodemgrd slept uninterruptibly in bus_rescan_devices_helper. That's because driver_detach took the semaphore of the PCI device and bus_rescan_devices_helper wanted to take the semaphore of the FireWire host device's parent, which is the same semaphore. This was a regression since Linux 2.6.16, commit bf74ad5bc41727d5f2f1c6bedb2c1fac394de731, "Hold the device's parent's lock during probe and remove". The fix (or workaround) adds a dummy driver to the hpsb_host device. Now bus_rescan_devices_helper won't scan the host device anymore. This doesn't hurt since we have no drivers which will bind to these devices and it is unlikely that there will ever be such a driver. The dummy driver is befittingly presented as a representation of ieee1394 itself. Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=6706 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: nodemgr: remove duplicate assignmentStefan Richter
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07sbp2: make 1bit bitfield unsignedLuca Tettamanti
A signed single-bit bitfield doesn't make much sense. Make it unsigned. Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: schedule *_oui sysfs attributes for removalStefan Richter
There is no manpower available to reform oui.db into a library for use in more kernel subsystems. The low ratio of usefulness to size and the occasional need to update oui.db from IEEE's official list suggest to drop oui.db. I plan to make a userspace script available which translates the remaining numeric sysfs attributes to names of organizations. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: schedule unused symbol exports for removalStefan Richter
This also means that former parts of ieee1394's API will be subject to change or removal. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: dv1394: schedule for feature removalStefan Richter
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: raw1394: defer feature removal of old isoch interfaceStefan Richter
Known to be affected: - libdc1394: prefers video1394 for now, old-style raw1394 support might be dropped eventually - OpenH323 PWLib, AVC video input module: uses libraw1394's old API Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07ieee1394: ohci1394: call PMac code in shutdown only for proper machinesStefan Richter
There has been an if(...) missing, for ages. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>