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Subject: media: v4l2-compat-ioctl32.c: move 'helper' functions to __get/put_v4l2_format32
Author: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Date: Wed Jan 24 04:45:29 2018 -0500
These helper functions do not really help. Move the code to the
__get/put_v4l2_format32 functions.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # for v4.15 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 124 +++++---------------------
1 file changed, 24 insertions(+), 100 deletions(-)
---
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index 83066b21b0b2..c7e9d29d0e33 100644
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -92,92 +92,6 @@ static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user
return 0;
}
-static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
-{
- if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int get_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp,
- struct v4l2_pix_format_mplane __user *up)
-{
- if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format_mplane)))
- return -EFAULT;
- return 0;
-}
-
-static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
-{
- if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int put_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp,
- struct v4l2_pix_format_mplane __user *up)
-{
- if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format_mplane)))
- return -EFAULT;
- return 0;
-}
-
-static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
-{
- if (copy_from_user(kp, up, sizeof(struct v4l2_vbi_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
-{
- if (copy_to_user(up, kp, sizeof(struct v4l2_vbi_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int get_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up)
-{
- if (copy_from_user(kp, up, sizeof(struct v4l2_sliced_vbi_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int put_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up)
-{
- if (copy_to_user(up, kp, sizeof(struct v4l2_sliced_vbi_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int get_v4l2_sdr_format(struct v4l2_sdr_format *kp, struct v4l2_sdr_format __user *up)
-{
- if (copy_from_user(kp, up, sizeof(struct v4l2_sdr_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int put_v4l2_sdr_format(struct v4l2_sdr_format *kp, struct v4l2_sdr_format __user *up)
-{
- if (copy_to_user(up, kp, sizeof(struct v4l2_sdr_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int get_v4l2_meta_format(struct v4l2_meta_format *kp, struct v4l2_meta_format __user *up)
-{
- if (copy_from_user(kp, up, sizeof(struct v4l2_meta_format)))
- return -EFAULT;
- return 0;
-}
-
-static inline int put_v4l2_meta_format(struct v4l2_meta_format *kp, struct v4l2_meta_format __user *up)
-{
- if (copy_to_user(up, kp, sizeof(struct v4l2_meta_format)))
- return -EFAULT;
- return 0;
-}
-
struct v4l2_format32 {
__u32 type; /* enum v4l2_buf_type */
union {
@@ -217,25 +131,30 @@ static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __us
switch (kp->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
+ return copy_from_user(&kp->fmt.pix, &up->fmt.pix,
+ sizeof(kp->fmt.pix)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- return get_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
- &up->fmt.pix_mp);
+ return copy_from_user(&kp->fmt.pix_mp, &up->fmt.pix_mp,
+ sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
case V4L2_BUF_TYPE_VBI_CAPTURE:
case V4L2_BUF_TYPE_VBI_OUTPUT:
- return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
+ return copy_from_user(&kp->fmt.vbi, &up->fmt.vbi,
+ sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- return get_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
+ return copy_from_user(&kp->fmt.sliced, &up->fmt.sliced,
+ sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_SDR_CAPTURE:
case V4L2_BUF_TYPE_SDR_OUTPUT:
- return get_v4l2_sdr_format(&kp->fmt.sdr, &up->fmt.sdr);
+ return copy_from_user(&kp->fmt.sdr, &up->fmt.sdr,
+ sizeof(kp->fmt.sdr)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_META_CAPTURE:
- return get_v4l2_meta_format(&kp->fmt.meta, &up->fmt.meta);
+ return copy_from_user(&kp->fmt.meta, &up->fmt.meta,
+ sizeof(kp->fmt.meta)) ? -EFAULT : 0;
default:
pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
kp->type);
@@ -266,25 +185,30 @@ static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __us
switch (kp->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
+ return copy_to_user(&up->fmt.pix, &kp->fmt.pix,
+ sizeof(kp->fmt.pix)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
- return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp,
- &up->fmt.pix_mp);
+ return copy_to_user(&up->fmt.pix_mp, &kp->fmt.pix_mp,
+ sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
case V4L2_BUF_TYPE_VBI_CAPTURE:
case V4L2_BUF_TYPE_VBI_OUTPUT:
- return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
+ return copy_to_user(&up->fmt.vbi, &kp->fmt.vbi,
+ sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced);
+ return copy_to_user(&up->fmt.sliced, &kp->fmt.sliced,
+ sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_SDR_CAPTURE:
case V4L2_BUF_TYPE_SDR_OUTPUT:
- return put_v4l2_sdr_format(&kp->fmt.sdr, &up->fmt.sdr);
+ return copy_to_user(&up->fmt.sdr, &kp->fmt.sdr,
+ sizeof(kp->fmt.sdr)) ? -EFAULT : 0;
case V4L2_BUF_TYPE_META_CAPTURE:
- return put_v4l2_meta_format(&kp->fmt.meta, &up->fmt.meta);
+ return copy_to_user(&up->fmt.meta, &kp->fmt.meta,
+ sizeof(kp->fmt.meta)) ? -EFAULT : 0;
default:
pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n",
kp->type);