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  1. 02 12月, 2010 1 次提交
  3. 19 5月, 2010 1 次提交
  5. 16 12月, 2009 2 次提交
  7. 28 9月, 2009 1 次提交
  9. 19 9月, 2009 1 次提交
  11. 03 1月, 2009 2 次提交
  13. 30 12月, 2008 1 次提交
    • K
      V4L/DVB (9521): V4L: struct device - replace bus_id with dev_name(), dev_set_name() · af128a10
      由 Kay Sievers 提交于 
      This patch is part of a larger patch series which will remove
the "char bus_id[20]" name string from struct device. The device
name is managed in the kobject anyway, and without any size
limitation, and just needlessly copied into "struct device".

To set and read the device name dev_name(dev) and dev_set_name(dev)
must be used. If your code uses static kobjects, which it shouldn't
do, "const char *init_name" can be used to statically provide the
name the registered device should have. At registration time, the
init_name field is cleared, to enforce the use of dev_name(dev) to
access the device name at a later time.

We need to get rid of all occurrences of bus_id in the entire tree
to be able to enable the new interface. Please apply this patch,
and possibly convert any remaining remaining occurrences of bus_id.

We want to submit a patch to -next, which will remove bus_id from
"struct device", to find the remaining pieces to convert, and finally
switch over to the new api, which will remove the 20 bytes array
and does no longer have a size limitation.

Thanks,
Kay
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
      af128a10
  15. 22 10月, 2008 1 次提交
    • H
      V4L/DVB (9327): v4l: use video_device.num instead of minor in video%d · c6330fb8
      由 Hans Verkuil 提交于 
      The kernel number of a v4l2 node (e.g. videoX, radioX or vbiX) is now
independent of the minor number. So instead of using the minor field
of the video_device struct one has to use the num field: this always
contains the kernel number of the device node.

I forgot about this when I did the v4l2 core change, so this patch
converts all drivers that use it in one go. Luckily the change is
trivial.

Cc: michael@mihu.de
Cc: mchehab@infradead.org
Cc: corbet@lwn.net
Cc: luca.risolia@studio.unibo.it
Cc: isely@pobox.com
Cc: pe1rxq@amsat.org
Cc: royale@zerezo.com
Cc: mkrufky@linuxtv.org
Cc: stoth@linuxtv.org
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
      c6330fb8
  17. 12 10月, 2008 1 次提交
  19. 05 9月, 2008 1 次提交
  21. 27 7月, 2008 1 次提交
  23. 26 7月, 2008 1 次提交
  25. 24 7月, 2008 2 次提交
  27. 17 5月, 2008 1 次提交
  29. 25 4月, 2008 2 次提交
  31. 26 1月, 2008 2 次提交
  33. 22 10月, 2007 1 次提交
  35. 10 10月, 2007 2 次提交
  37. 19 7月, 2007 1 次提交
  39. 21 2月, 2007 1 次提交
  41. 13 2月, 2007 1 次提交
  43. 26 11月, 2006 1 次提交
  45. 14 10月, 2006 1 次提交
  47. 05 10月, 2006 1 次提交
    • D
      IRQ: Maintain regs pointer globally rather than passing to IRQ handlers · 7d12e780
      由 David Howells 提交于 
      Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.
Signed-Off-By: NDavid Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
      7d12e780
  49. 25 6月, 2006 1 次提交
  51. 25 3月, 2006 2 次提交
  53. 21 3月, 2006 1 次提交
    • L
      [PATCH] USB: ET61X[12]51 driver updates · ccad7789
      由 Luca Risolia 提交于 
      USB: ET61X[12]51 driver updates

Changes: + new, - removed, * cleanup, @ bugfix

@ Fix stream_interrupt()
@ Fix vidioc_enum_input() and split vidioc_gs_input()
@ Need usb_get|put_dev() when disconnecting, if the device is open
* Use wait_event_interruptible_timeout() instead of wait_event_interruptible()
  when waiting for video frames
* replace wake_up_interruptible(&wait_stream) with wake_up(&wait_stream)
* Cleanups and updates in the documentation
* Use mutexes instead of semaphores
+ Use per-device sensor structures
+ Add support for PAS202BCA image sensors
+ Add frame_timeout module parameter
Signed-off-by: NLuca Risolia <luca.risolia@studio.unibo.it>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      ccad7789
  55. 01 2月, 2006 3 次提交
  57. 05 1月, 2006 2 次提交
  59. 24 11月, 2005 1 次提交
    • D
      [PATCH] USB: SN9C10x driver - bad page state fix · 0b67ba63
      由 Damian Wrobel 提交于 
      This patch solves the following problem I've already discovered on the
latest 2.6.15-rc1-git1 kernel:

Nov 13 07:37:28 wrobel kernel: Bad page state at free_hot_cold_page (in process 'motion', page c164e020)
Nov 13 07:37:28 wrobel kernel: flags:0x40000400 mapping:00000000 mapcount:0 count:0
Nov 13 07:37:28 wrobel kernel: Backtrace:
Nov 13 07:37:28 wrobel kernel:  [<c0146d86>] bad_page+0x85/0xbe
Nov 13 07:37:28 wrobel kernel:  [<c0147629>] free_hot_cold_page+0x54/0x129
Nov 13 07:37:28 wrobel kernel:  [<c01598c6>] __vunmap+0xa9/0xfe
Nov 13 07:37:28 wrobel kernel:  [<c0154114>] vmalloc_to_page+0x34/0x55
Nov 13 07:37:28 wrobel kernel:  [<c0159942>] vfree+0x27/0x35
Nov 13 07:37:28 wrobel kernel:  [<f8a20292>]  sn9c102_release_buffers+0x30/0x3f [sn9c102]
Nov 13 07:37:28 wrobel kernel:  [<f8a231c2>] sn9c102_release+0x37/0xeb [sn9c102]
Nov 13 07:37:28 wrobel kernel:  [<c0163e74>] __fput+0xa9/0x1aa
Nov 13 07:37:28 wrobel kernel:  [<c01624f7>] filp_close+0x49/0x6d
Nov 13 07:37:30 wrobel kernel:  [<c016258f>] sys_close+0x74/0x95
Nov 13 07:37:30 wrobel kernel:  [<c0102ef9>] syscall_call+0x7/0xb
Nov 13 07:37:31 wrobel kernel: Trying to fix it up, but a reboot is needed
Signed-off-by: NDamian Wrobel <dwrobel@ertel.com.pl>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      0b67ba63