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[media] uvcvideo: (cosmetic) Add and use an inline function 

Add an inline function to obtain a struct uvc_buffer pointer from a
struct vb2_v4l2_buffer one.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Guennadi Liakhovetski 2016-12-12 09:16:49 -02:00 committed by Mauro Carvalho Chehab
parent 239dd6164c
commit bb1d34875c
1 changed files with 8 additions and 3 deletions
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11
drivers/media/usb/uvc/uvc_queue.c
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@ -43,6 +43,11 @@ uvc_queue_to_stream(struct uvc_video_queue *queue)
return container_of(queue, struct uvc_streaming, queue);
}
static inline struct uvc_buffer *uvc_vbuf_to_buffer(struct vb2_v4l2_buffer *buf)
{
return container_of(buf, struct uvc_buffer, buf);
}
/*
* Return all queued buffers to videobuf2 in the requested state.
*
@ -89,7 +94,7 @@ static int uvc_buffer_prepare(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);
struct uvc_buffer *buf = container_of(vbuf, struct uvc_buffer, buf);
struct uvc_buffer *buf = uvc_vbuf_to_buffer(vbuf);
if (vb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) {
@ -116,7 +121,7 @@ static void uvc_buffer_queue(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);
struct uvc_buffer *buf = container_of(vbuf, struct uvc_buffer, buf);
struct uvc_buffer *buf = uvc_vbuf_to_buffer(vbuf);
unsigned long flags;
spin_lock_irqsave(&queue->irqlock, flags);
@ -138,7 +143,7 @@ static void uvc_buffer_finish(struct vb2_buffer *vb)
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);
struct uvc_streaming *stream = uvc_queue_to_stream(queue);
struct uvc_buffer *buf = container_of(vbuf, struct uvc_buffer, buf);
struct uvc_buffer *buf = uvc_vbuf_to_buffer(vbuf);
if (vb->state == VB2_BUF_STATE_DONE)
uvc_video_clock_update(stream, vbuf, buf);