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* V4L/DVB: tvp514x: there is only one supported format, so simplify the codeHans Verkuil2010-06-011-36/+9
| | | | | | | | | | | | Get rid of unnecessary code since this driver supports only one pixel format. Removing this code will make the transition to the mbus API easier as well. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: tvp514x: make std_list constHans Verkuil2010-06-011-2/+2
| | | | | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: tvp514x: do NOT change the std as a side effectHans Verkuil2010-06-011-37/+16
| | | | | | | | | | | Several calls (try_fmt, g_parm among others) changed the current standard as a side effect of that call. But the standard may only be changed by s_std. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Vaibhav Hiremath <hvaibhav@ti.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2-subdev.h: fix enum_mbus_fmt prototypeHans Verkuil2010-06-0117-27/+28
| | | | | | | | | | | enum_mbus_fmt received an index argument that was defined as an int instead of an unsigned int. This is now fixed. This had the knock-on effect that the index argument in the callback get_formats in soc_camera.h also had to be changed to unsigned int. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: au8522_decoder: g/s_fmt doesn't do anything: removeHans Verkuil2010-06-011-26/+0
| | | | | | | | g/s_fmt is going to disappear, so if it is not doing anything, then just remove it. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: tvp5150: remove obsolete g/s_fmt opsHans Verkuil2010-06-011-20/+0
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: mt9v011: add enum/try/s_mbus_fmt supportHans Verkuil2010-06-011-20/+17
| | | | | | | | | | | | Note that this driver is only used by em28xx and that em28xx does not actually call the enum/try/s_fmt ops of mt9v011. So these functions have never been tested. And in fact the driver really implements cropping instead of scaling. So it seems to be doing the wrong thing :-( Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2-mediabus.h: added V4L2_MBUS_FMT_SGRBG8_1X8Hans Verkuil2010-06-011-0/+1
| | | | | | | Needed for mt9v011. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa7115: remove obsolete g/s_fmt opsHans Verkuil2010-06-011-17/+0
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx24850: remove obsolete g/s_fmt opsHans Verkuil2010-06-011-31/+0
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx231xx: convert to s_mbus_fmtHans Verkuil2010-06-011-1/+4
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx23885: convert to s_mbus_fmtHans Verkuil2010-06-011-1/+4
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: convert to s_mbus_fmtHans Verkuil2010-06-011-6/+6
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa7134: convert to use the new mbus APIHans Verkuil2010-06-012-24/+7
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa6752hs: add g/s_mbus_fmt supportHans Verkuil2010-06-011-18/+46
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: v4l2-mediabus.h: add two helper functionsHans Verkuil2010-06-011-0/+20
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa717x: remove obsolete s_fmt opHans Verkuil2010-06-011-11/+0
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa7127: remove obsolete g_fmt supportHans Verkuil2010-06-011-8/+0
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx18: remove old g/s_fmt from the cx18_av subdevHans Verkuil2010-06-013-34/+10
| | | | | | | cx18 has now switched over completely to the new mediabus subdev ops. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx18: add s_mbus_fmt supportHans Verkuil2010-06-011-57/+69
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ivtv: convert to use s_mbus_fmtHans Verkuil2010-06-012-6/+10
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa717x: add support for s_mbus_fmtHans Verkuil2010-06-011-16/+31
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx25840: add support for s_mbus_fmtHans Verkuil2010-06-011-41/+55
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: saa7115: add s_mbus_fmt opHans Verkuil2010-06-011-0/+10
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: V4L2 Spec: Improve the VIDIOC_QUERY_DV_PRESET descriptionHans Verkuil2010-06-011-2/+4
| | | | | | | | Make explicit what should happen when the input signal is missing, unreliable or does not map to a supported preset. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ngene: Remove debug messageOliver Endriss2010-06-011-5/+1
| | | | | | | Remove debug message. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ngene: MSI cleanupOliver Endriss2010-06-011-1/+5
| | | | | | | MSI cleanup. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ngene: Make command timeout workaround configurableOliver Endriss2010-06-013-16/+8
| | | | | | | | Make command timeout workaround configurable, activate it for firmware version <= 17. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ngene: Implement support for MSIOliver Endriss2010-06-012-1/+34
| | | | | | | Add MSI support, may be enabled with firmware version 18. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ngene: Do not call demuxer with interrupts disabledOliver Endriss2010-06-011-14/+14
| | | | | | | It is neither a good idea nor necessary to call the demuxer with interrupts disabled. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: ngene: Support new device 'Digital Devices DuoFlex S2 miniPCIe'Oliver Endriss2010-06-011-0/+15
| | | | | | | Add subsystem id DD10/DD20 'Digital Devices DuoFlex S2 miniPCIe'. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: gspca - sonixj: Add webcam 0c45:60ceWarren Bosworth Focke2010-06-012-1/+2
| | | | | | Signed-off-by: Warren Bosworth Focke <wbfocke@gmail.com> Signed-off-by: Jean-François Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: gspca - sonixj: Add information about some potential JPEG webcamsJean-François Moine2010-06-011-1/+4
| | | | | Signed-off-by: Jean-François Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: gspca - sonixb: Have 0c45:602e handled by sonixb instead of sn9c102Jean-François Moine2010-06-012-3/+1
| | | | | | | | This change fixes the Debian Bug #579332 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=579332 Signed-off-by: Jean-François Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: Fix kernel oops on device tear-downMike Isely2010-06-011-2/+2
| | | | | | | | | | | | | | | | | pvrusb2: Delete sysfs class device as the _very_ last step, after we're sure that all driver contexts have gone away first. This is important because it appears that there isn't any protection from a struct device instance reference a deleted struct class instance. The assumption in the kernel code appears to be that the class instance is assumed to be around for the life of the device. So we can't let the class instance go away until all referencing device instances are gone; this is ensured by delaying removal of the class instance until after the driver contexts have all gone away. This bug has been present for a very long time but it didn't apparently become malignant until recently (probably because of other changes in the kernel). Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: Fix minor internal array allocationMike Isely2010-06-011-1/+1
| | | | | | | | | pvrusb2: Need one extra attribute slot allocated so that worst case still has a trailing null pointer. This wasn't causing visible symptoms; it was found through inspection while investigating other issues. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: Fix USB parent device reference countMike Isely2010-06-011-2/+9
| | | | | | | | | pvrusb2: Correctly reference count pointer to parent USB device when linked from sysfs interface. This is technically a pretty nasty problem, however as far as I know nobody had been getting burned by it (yet). Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: Fix kernel oops at device unregistrationMike Isely2010-06-011-3/+12
| | | | | | | | | | | | pvrusb2: Fix oops caused by touching deleted memory after unregistration. This bug was introduced when we had started using video_device_node_name() - that function was being called potentially after the underlying structure (referenced by that function) had been deleted. The fix rearranges things slightly so that the function is called before destruction takes place. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: New feature to mark specific hardware support as experimentalMike Isely2010-06-012-0/+18
| | | | | | | | | | This adds a flag in the device attribute structure which can be used to mark support for a particular device as experimental. Any devices flagged in this way, when encountered at run-time, will generate a warning message to the kernel log. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: Avoid using stack allocated buffers when performing USB I/OMike Isely2010-06-011-1/+11
| | | | | | | | Drivers shouldn't assume that the stack is DMA-safe. [mchehab@redhat.com: fix patch description] Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: pvrusb2: Fix Gotview hardware supportMike Isely2010-06-011-0/+1
| | | | | | | | pvrusb2: Fix RF tuner problem with gotview hardware - this bug was introduced when switching over to the subdev model of driver control Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: cx23885: Check register errorsAbylay Ospan2010-06-011-0/+2
| | | | | | | | | Fix kernel Oops when number of NetUP Dual DVB-S2-CI cards more than DVB_MAX_ADAPTERS limit. [mchehab@redhat.com: move the return to the proper place] Signed-off-by: Abylay Ospan <aospan@netup.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: c-qcam: convert to V4L2Hans Verkuil2010-06-012-305/+331
| | | | | | | | Note: due to lack of hardware this conversion is untested. However, it is pretty straightforward so I do not expect any problems. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: bw-qcam: convert to V4L2Hans Verkuil2010-06-013-415/+415
| | | | | | | | Note: due to lack of hardware I was not able to test this conversion. But it is pretty straightforward, so I do not expect any problems. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* Linux 2.6.35-rc1v2.6.35-rc1Linus Torvalds2010-05-301-2/+2
| | | | .. and thus endeth the merge window.
* Merge branch 'slub/urgent' of ↵Linus Torvalds2010-05-302-29/+15
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'slub/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: SLUB: Allow full duplication of kmalloc array for 390 slub: move kmem_cache_node into it's own cacheline
| * SLUB: Allow full duplication of kmalloc array for 390Christoph Lameter2010-05-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Commit 756dee75872a2a764b478e18076360b8a4ec9045 ("SLUB: Get rid of dynamic DMA kmalloc cache allocation") makes S390 run out of kmalloc caches. Increase the number of kmalloc caches to a safe size. Cc: <stable@kernel.org> [ .33 and .34 ] Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com> Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * slub: move kmem_cache_node into it's own cachelineAlexander Duyck2010-05-242-28/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is meant to improve the performance of SLUB by moving the local kmem_cache_node lock into it's own cacheline separate from kmem_cache. This is accomplished by simply removing the local_node when NUMA is enabled. On my system with 2 nodes I saw around a 5% performance increase w/ hackbench times dropping from 6.2 seconds to 5.9 seconds on average. I suspect the performance gain would increase as the number of nodes increases, but I do not have the data to currently back that up. Bugzilla-Reference: http://bugzilla.kernel.org/show_bug.cgi?id=15713 Cc: <stable@kernel.org> Reported-by: Alex Shi <alex.shi@intel.com> Tested-by: Alex Shi <alex.shi@intel.com> Acked-by: Yanmin Zhang <yanmin_zhang@linux.intel.com> Acked-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
* | Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds2010-05-301-0/+7
|\ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: mutex: Fix optimistic spinning vs. BKL
| * | mutex: Fix optimistic spinning vs. BKLTony Breeds2010-05-191-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, we can hit a nasty case with optimistic spinning on mutexes: CPU A tries to take a mutex, while holding the BKL CPU B tried to take the BLK while holding the mutex This looks like a AB-BA scenario but in practice, is allowed and happens due to the auto-release on schedule() nature of the BKL. In that case, the optimistic spinning code can get us into a situation where instead of going to sleep, A will spin waiting for B who is spinning waiting for A, and the only way out of that loop is the need_resched() test in mutex_spin_on_owner(). This patch fixes it by completely disabling spinning if we own the BKL. This adds one more detail to the extensive list of reasons why it's a bad idea for kernel code to be holding the BKL. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: <stable@kernel.org> LKML-Reference: <20100519054636.GC12389@ozlabs.org> [ added an unlikely() attribute to the branch ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
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