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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-12-27 11:14:52 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-12-29 08:17:12 -0200 |
| commit | 1035758d5bdcd6c2f7308a35185f1d6f3b6b5443 (patch) | |
| tree | dc7645dff1afe87671add84315b4d24982fa0b71 /Documentation | |
| parent | 0334c8a52a8578f7aef501a14f78004f931efe20 (diff) | |
| download | lwn-1035758d5bdcd6c2f7308a35185f1d6f3b6b5443.tar.gz lwn-1035758d5bdcd6c2f7308a35185f1d6f3b6b5443.zip | |
[media] feature_removal_schedule.txt: mark VIDIOC_*_OLD ioctls to die
There are some old broken definitions of ioctl's, where the
read/write arguments were marked wrong. The last one were added
on 2.6.6 kernel. Remove them, in order to cleanup some
copy_from_user/copy_to_user logic done inside V4L core.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index e348b7e241f1..f2742e115b09 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -112,6 +112,27 @@ Who: Mauro Carvalho Chehab <mchehab@infradead.org> --------------------------- +What: Video4Linux: Remove obsolete ioctl's +When: kernel 2.6.39 +Files: include/media/videodev2.h +Why: Some ioctl's were defined wrong on 2.6.2 and 2.6.6, using the wrong + type of R/W arguments. They were fixed, but the old ioctl names are + still there, maintained to avoid breaking binary compatibility: + #define VIDIOC_OVERLAY_OLD _IOWR('V', 14, int) + #define VIDIOC_S_PARM_OLD _IOW('V', 22, struct v4l2_streamparm) + #define VIDIOC_S_CTRL_OLD _IOW('V', 28, struct v4l2_control) + #define VIDIOC_G_AUDIO_OLD _IOWR('V', 33, struct v4l2_audio) + #define VIDIOC_G_AUDOUT_OLD _IOWR('V', 49, struct v4l2_audioout) + #define VIDIOC_CROPCAP_OLD _IOR('V', 58, struct v4l2_cropcap) + There's no sense on preserving those forever, as it is very doubtful + that someone would try to use a such old binary with a modern kernel. + Removing them will allow us to remove some magic done at the V4L ioctl + handler. + +Who: Mauro Carvalho Chehab <mchehab@infradead.org> + +--------------------------- + What: sys_sysctl When: September 2010 Option: CONFIG_SYSCTL_SYSCALL |