* [PATCH] media: v4l2-ioctl: Clear only per-plane reserved fields
@ 2019-01-10 10:48 Thierry Reding
2019-01-10 11:47 ` Hans Verkuil
2019-01-10 12:08 ` Sakari Ailus
0 siblings, 2 replies; 3+ messages in thread
From: Thierry Reding @ 2019-01-10 10:48 UTC (permalink / raw)
To: Mauro Carvalho Chehab, Hans Verkuil
Cc: Ezequiel Garcia, Tomasz Figa, Sakari Ailus, linux-media
From: Thierry Reding <treding@nvidia.com>
Currently the IOCTL code clears everything after the per-plane
bytesperline field in struct v4l2_format. The intent was to only clear
the per-plane reserved fields since there is data in struct v4l2_format
after the per-plane format data that userspace may have filled in.
Fixes: 4e1e0eb0e074 ("media: v4l2-ioctl: Zero v4l2_plane_pix_format reserved fields")
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
drivers/media/v4l2-core/v4l2-ioctl.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index df4259802756..e00aa2fe3e8f 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1553,7 +1553,7 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
- CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
+ CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
@@ -1583,7 +1583,7 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
- CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
+ CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
@@ -1650,7 +1650,7 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
- CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
+ CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
@@ -1680,7 +1680,7 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
break;
CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
- CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
+ CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
--
2.19.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] media: v4l2-ioctl: Clear only per-plane reserved fields
2019-01-10 10:48 [PATCH] media: v4l2-ioctl: Clear only per-plane reserved fields Thierry Reding
@ 2019-01-10 11:47 ` Hans Verkuil
2019-01-10 12:08 ` Sakari Ailus
1 sibling, 0 replies; 3+ messages in thread
From: Hans Verkuil @ 2019-01-10 11:47 UTC (permalink / raw)
To: Thierry Reding, Mauro Carvalho Chehab
Cc: Ezequiel Garcia, Tomasz Figa, Sakari Ailus, linux-media
On 01/10/19 11:48, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
>
> Currently the IOCTL code clears everything after the per-plane
> bytesperline field in struct v4l2_format. The intent was to only clear
> the per-plane reserved fields since there is data in struct v4l2_format
> after the per-plane format data that userspace may have filled in.
>
> Fixes: 4e1e0eb0e074 ("media: v4l2-ioctl: Zero v4l2_plane_pix_format reserved fields")
> Signed-off-by: Thierry Reding <treding@nvidia.com>
Erm, oops! I should have seen that when reviewing that patch.
I'll make a pull request for 5.0 asap.
Thank you,
Hans
> ---
> drivers/media/v4l2-core/v4l2-ioctl.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index df4259802756..e00aa2fe3e8f 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1553,7 +1553,7 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OVERLAY:
> if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
> @@ -1583,7 +1583,7 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
> if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
> @@ -1650,7 +1650,7 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OVERLAY:
> if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
> @@ -1680,7 +1680,7 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
> if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] media: v4l2-ioctl: Clear only per-plane reserved fields
2019-01-10 10:48 [PATCH] media: v4l2-ioctl: Clear only per-plane reserved fields Thierry Reding
2019-01-10 11:47 ` Hans Verkuil
@ 2019-01-10 12:08 ` Sakari Ailus
1 sibling, 0 replies; 3+ messages in thread
From: Sakari Ailus @ 2019-01-10 12:08 UTC (permalink / raw)
To: Thierry Reding
Cc: Mauro Carvalho Chehab, Hans Verkuil, Ezequiel Garcia,
Tomasz Figa, linux-media
On Thu, Jan 10, 2019 at 11:48:39AM +0100, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
>
> Currently the IOCTL code clears everything after the per-plane
> bytesperline field in struct v4l2_format. The intent was to only clear
> the per-plane reserved fields since there is data in struct v4l2_format
> after the per-plane format data that userspace may have filled in.
>
> Fixes: 4e1e0eb0e074 ("media: v4l2-ioctl: Zero v4l2_plane_pix_format reserved fields")
> Signed-off-by: Thierry Reding <treding@nvidia.com>
Good catch!
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
> drivers/media/v4l2-core/v4l2-ioctl.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index df4259802756..e00aa2fe3e8f 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1553,7 +1553,7 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OVERLAY:
> if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
> @@ -1583,7 +1583,7 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
> if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
> @@ -1650,7 +1650,7 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OVERLAY:
> if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
> @@ -1680,7 +1680,7 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
> break;
> CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
> for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
> - CLEAR_AFTER_FIELD(p, fmt.pix_mp.plane_fmt[i].bytesperline);
> + CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i], bytesperline);
> return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
> if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
> --
> 2.19.1
>
--
Sakari Ailus
sakari.ailus@linux.intel.com
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-01-10 10:48 [PATCH] media: v4l2-ioctl: Clear only per-plane reserved fields Thierry Reding
2019-01-10 11:47 ` Hans Verkuil
2019-01-10 12:08 ` Sakari Ailus
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