diff options
| author |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-21 11:58:39 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-21 14:31:49 -0200 |
| commit | 8a522c916d3c3b29a38bd3c8fc3df826d22a9444 (patch) | |
| tree | cf7c9752eb6fd9909e6b62dc1c048eed082d4611 /include/media/v4l2-ioctl.h | |
| parent | V4L/DVB (9330): Get rid of inode parameter at v4l_compat_translate_ioctl() (diff) | |
| download | linux-dev-8a522c916d3c3b29a38bd3c8fc3df826d22a9444.tar.xz linux-dev-8a522c916d3c3b29a38bd3c8fc3df826d22a9444.zip | |
V4L/DVB (9331): Remove unused inode parameter from video_ioctl2
inode is never used on video_ioctl2. Remove it and rename the function to
__video_ioctl2. This allows its usage directly as a callback at
fops.unlocked_ioctl.
Since we still need a callback with inode to be used with fops.ioctl,
this patch adds video_ioctl2() that is just a call to __video_ioctl2().
Also, this patch adds some comments about video_ioctl2 and __video_ioctl2
usage at v4l2-ioctl.h.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-ioctl.h')
| -rw-r--r-- | include/media/v4l2-ioctl.h | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index 7a919433a423..e6ba25b3d7c8 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -284,15 +284,25 @@ int v4l_compat_translate_ioctl(struct file *file, extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg); -extern int video_ioctl2(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); -extern long video_ioctl2_unlocked(struct file *file, - unsigned int cmd, unsigned long arg); - /* Include support for obsoleted stuff */ extern int video_usercopy(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg, int (*func)(struct inode *inode, struct file *file, unsigned int cmd, void *arg)); +/* Standard handlers for V4L ioctl's */ + +/* This prototype is used on fops.unlocked_ioctl */ +extern int __video_ioctl2(struct file *file, + unsigned int cmd, unsigned long arg); + +/* This prototype is used on fops.ioctl + * Since fops.ioctl enables Kernel Big Lock, it is preferred + * to use __video_ioctl2 instead. + * It should be noticed that there's no lock code inside + * video_ioctl2(). + */ +extern int video_ioctl2(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg); + #endif /* _V4L2_IOCTL_H */ |