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media: v4l2: remove unneeded compat ioctl handlers 

These seven commands are all compatible and do not need any
conversion handlers. The existing ones just copy 32-bit
integers around, and those are always compatible.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Arnd Bergmann 2020-10-30 17:55:23 +01:00 committed by Mauro Carvalho Chehab
parent 8dbcc3fa38
commit 3b8bc8912a
1 changed files with 0 additions and 42 deletions
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42
drivers/media/v4l2-core/v4l2-compat-ioctl32.c
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@ -1406,14 +1406,6 @@ static int put_v4l2_edid32(struct v4l2_edid __user *p64,
#define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32)
#define VIDIOC_PREPARE_BUF32_TIME32 _IOWR('V', 93, struct v4l2_buffer32_time32)
#define VIDIOC_OVERLAY32 _IOW ('V', 14, s32)
#define VIDIOC_STREAMON32 _IOW ('V', 18, s32)
#define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32)
#define VIDIOC_G_INPUT32 _IOR ('V', 38, s32)
#define VIDIOC_S_INPUT32 _IOWR('V', 39, s32)
#define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32)
#define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
unsigned int v4l2_compat_translate_cmd(unsigned int cmd)
{
switch (cmd) {
@ -1544,13 +1536,6 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
case VIDIOC_DQEVENT32: ncmd = VIDIOC_DQEVENT; break;
case VIDIOC_DQEVENT32_TIME32: ncmd = VIDIOC_DQEVENT_TIME32; break;
#endif
case VIDIOC_OVERLAY32: ncmd = VIDIOC_OVERLAY; break;
case VIDIOC_STREAMON32: ncmd = VIDIOC_STREAMON; break;
case VIDIOC_STREAMOFF32: ncmd = VIDIOC_STREAMOFF; break;
case VIDIOC_G_INPUT32: ncmd = VIDIOC_G_INPUT; break;
case VIDIOC_S_INPUT32: ncmd = VIDIOC_S_INPUT; break;
case VIDIOC_G_OUTPUT32: ncmd = VIDIOC_G_OUTPUT; break;
case VIDIOC_S_OUTPUT32: ncmd = VIDIOC_S_OUTPUT; break;
case VIDIOC_CREATE_BUFS32: ncmd = VIDIOC_CREATE_BUFS; break;
case VIDIOC_PREPARE_BUF32: ncmd = VIDIOC_PREPARE_BUF; break;
case VIDIOC_PREPARE_BUF32_TIME32: ncmd = VIDIOC_PREPARE_BUF_TIME32; break;
@ -1565,24 +1550,6 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
* argument into it.
*/
switch (cmd) {
case VIDIOC_OVERLAY32:
case VIDIOC_STREAMON32:
case VIDIOC_STREAMOFF32:
case VIDIOC_S_INPUT32:
case VIDIOC_S_OUTPUT32:
err = alloc_userspace(sizeof(unsigned int), 0, &new_p64);
if (!err && assign_in_user((unsigned int __user *)new_p64,
(compat_uint_t __user *)p32))
err = -EFAULT;
compatible_arg = 0;
break;
case VIDIOC_G_INPUT32:
case VIDIOC_G_OUTPUT32:
err = alloc_userspace(sizeof(unsigned int), 0, &new_p64);
compatible_arg = 0;
break;
case VIDIOC_G_EDID32:
case VIDIOC_S_EDID32:
err = alloc_userspace(sizeof(struct v4l2_edid), 0, &new_p64);
@ -1755,15 +1722,6 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
* the original 32 bits structure.
*/
switch (cmd) {
case VIDIOC_S_INPUT32:
case VIDIOC_S_OUTPUT32:
case VIDIOC_G_INPUT32:
case VIDIOC_G_OUTPUT32:
if (assign_in_user((compat_uint_t __user *)p32,
((unsigned int __user *)new_p64)))
err = -EFAULT;
break;
case VIDIOC_G_FBUF32:
err = put_v4l2_framebuffer32(new_p64, p32);
break;