Skip to content

GitLab

Switch branch/tag
  1. 20 Nov, 2018 1 commit
  3. 11 Sep, 2018 1 commit
  5. 31 Aug, 2018 1 commit
  7. 08 Dec, 2017 1 commit
  9. 27 Nov, 2017 1 commit
  11. 27 Aug, 2017 1 commit
  13. 27 Jan, 2017 1 commit
    • Sakari Ailus's avatar
      [media] media: Drop FSF's postal address from the source code files · bcb63314
      Sakari Ailus authored 
      
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.

The patch has been created with the following command without manual edits:

git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
	drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
	&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      bcb63314
  15. 04 Jul, 2014 1 commit
  17. 21 Dec, 2012 1 commit
  19. 26 Sep, 2012 1 commit
  21. 15 Aug, 2012 1 commit
  23. 09 Aug, 2012 1 commit
  25. 05 Jul, 2012 1 commit
  27. 14 May, 2012 1 commit
    • Hans Verkuil's avatar
      [media] v4l2-dev: add flag to have the core lock all file operations · 5126f259
      Hans Verkuil authored 
      
This used to be the default if the lock pointer was set, but now that lock is by
default only used for ioctl serialization. Those drivers that already used
core locking have this flag set explicitly, except for some drivers where
it was obvious that there was no need to serialize any file operations other
than ioctl.

The drivers that didn't need this flag were:

drivers/media/radio/dsbr100.c
drivers/media/radio/radio-isa.c
drivers/media/radio/radio-keene.c
drivers/media/radio/radio-miropcm20.c
drivers/media/radio/radio-mr800.c
drivers/media/radio/radio-tea5764.c
drivers/media/radio/radio-timb.c
drivers/media/video/vivi.c
sound/i2c/other/tea575x-tuner.c

The other drivers that use core locking and where it was not immediately
obvious that this flag wasn't needed were changed so that the flag is set
together with a comment that that driver needs work to avoid having to
set that flag. This will often involve taking the core lock in the fops
themselves.

Eventually this flag should go and it should not be used in new drivers.

There are a few reasons why we want to avoid core locking of non-ioctl
fops: in the case of mmap this can lead to a deadlock in rare situations
since when mmap is called the mmap_sem is held and it is possible for
other parts of the code to take that lock as well (copy_from_user()/copy_to_user()
perform a down_read(&mm->mmap_sem) when a page fault occurs).

It is very unlikely that that happens since the core lock serializes all
fops, but the kernel warns about it if lock validation is turned on.

For poll it is also undesirable to take the core lock as that can introduce
increased latency. The same is true for read/write.

While it was possible to make flags or something to turn on/off taking the
core lock for each file operation, in practice it is much simpler to just
not take it at all except for ioctl and leave it to the driver to take the
lock. There are only a handful fops compared to the zillion ioctls we have.

I also wanted to make it obvious which drivers still take the lock for all
fops, so that's why I chose to have drivers set it explicitly.
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Acked-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      5126f259
  29. 07 May, 2012 1 commit
  31. 27 Jul, 2011 1 commit
    • Mauro Carvalho Chehab's avatar
      [media] Stop using linux/version.h on most video drivers · 1990d50b
      Mauro Carvalho Chehab authored 
      
All the modified drivers didn't have any version increment since
Jan, 1 2011. Several of them didn't have any version increment
for a long time, even having new features and important bug fixes
happening.

As we're now filling the QUERYCAP version with the current Kernel
Release, we don't need to maintain a per-driver version control
anymore. So, let's just use the default.

In order to preserve the Kernel module version history, a
KERNEL_VERSION() macro were added to all modified drivers, and
the extraver number were incremented.

I opted to preserve the per-driver version control to a few
pwc, pvrusb2, s2255, s5p-fimc and sh_vou.

A few drivers are still using the legacy way to handle ioctl's.
So, we can't do such change on them, otherwise, they'll break.
Those are: uvc, et61x251 and sn9c102.

The rationale is that the per-driver version control seems to be
actively maintained on those.

Yet, I think that the better for them would be to just use the
default version numbering, instead of doing that by themselves.

While here, removed a few uneeded include linux/version.h
Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      1990d50b
  33. 26 May, 2011 1 commit
  35. 20 May, 2011 1 commit
  37. 22 Mar, 2011 1 commit
  39. 21 Mar, 2011 1 commit
  41. 19 Jan, 2011 1 commit
  43. 29 Dec, 2010 1 commit
  45. 21 Oct, 2010 1 commit
  47. 19 May, 2010 1 commit
  49. 16 Dec, 2009 3 commits
  51. 16 Jun, 2009 1 commit
  53. 30 Mar, 2009 1 commit
  55. 02 Jan, 2009 2 commits
  57. 29 Dec, 2008 2 commits
  59. 21 Oct, 2008 1 commit
    • Hans Verkuil's avatar
      V4L/DVB (9327): v4l: use video_device.num instead of minor in video%d · c6330fb8
      Hans Verkuil authored 
      
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: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      c6330fb8
  61. 12 Oct, 2008 1 commit
  63. 03 Sep, 2008 2 commits
  65. 27 Jul, 2008 1 commit
  67. 26 Jul, 2008 1 commit
  69. 23 Jul, 2008 1 commit
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7