diff mbox series

[v14,31/56] media: imx: Stop direct calls to queue num_buffers field

Message ID 20231031163104.112469-32-benjamin.gaignard@collabora.com
State New
Headers
Series Add DELETE_BUF ioctl |

Commit Message

Benjamin Gaignard Oct. 31, 2023, 4:30 p.m. UTC 
  Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
This allows us to change how the number of buffers is computed in the
future.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
CC: Steve Longerbeam <slongerbeam@gmail.com>
CC: Philipp Zabel <p.zabel@pengutronix.de>
---
 drivers/staging/media/imx/imx-media-capture.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

Comments

Andrzej Pietrasiewicz Nov. 9, 2023, 11:12 a.m. UTC | #1 
W dniu 31.10.2023 o 17:30, Benjamin Gaignard pisze:
> Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
> This allows us to change how the number of buffers is computed in the
> future.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>

Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>

> CC: Steve Longerbeam <slongerbeam@gmail.com>
> CC: Philipp Zabel <p.zabel@pengutronix.de>
> ---
>   drivers/staging/media/imx/imx-media-capture.c | 7 ++++---
>   1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c
> index 4846078315ff..ce02199e7b1b 100644
> --- a/drivers/staging/media/imx/imx-media-capture.c
> +++ b/drivers/staging/media/imx/imx-media-capture.c
> @@ -605,6 +605,7 @@ static int capture_queue_setup(struct vb2_queue *vq,
>   {
>   	struct capture_priv *priv = vb2_get_drv_priv(vq);
>   	struct v4l2_pix_format *pix = &priv->vdev.fmt;
> +	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
>   	unsigned int count = *nbuffers;
>   
>   	if (vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> @@ -613,14 +614,14 @@ static int capture_queue_setup(struct vb2_queue *vq,
>   	if (*nplanes) {
>   		if (*nplanes != 1 || sizes[0] < pix->sizeimage)
>   			return -EINVAL;
> -		count += vq->num_buffers;
> +		count += q_num_bufs;
>   	}
>   
>   	count = min_t(__u32, VID_MEM_LIMIT / pix->sizeimage, count);
>   
>   	if (*nplanes)
> -		*nbuffers = (count < vq->num_buffers) ? 0 :
> -			count - vq->num_buffers;
> +		*nbuffers = (count < q_num_bufs) ? 0 :
> +			count - q_num_bufs;
>   	else
>   		*nbuffers = count;
>
diff mbox series

Patch

diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c
index 4846078315ff..ce02199e7b1b 100644
--- a/drivers/staging/media/imx/imx-media-capture.c
+++ b/drivers/staging/media/imx/imx-media-capture.c
@@ -605,6 +605,7 @@  static int capture_queue_setup(struct vb2_queue *vq,
 {
 	struct capture_priv *priv = vb2_get_drv_priv(vq);
 	struct v4l2_pix_format *pix = &priv->vdev.fmt;
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 	unsigned int count = *nbuffers;
 
 	if (vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
@@ -613,14 +614,14 @@  static int capture_queue_setup(struct vb2_queue *vq,
 	if (*nplanes) {
 		if (*nplanes != 1 || sizes[0] < pix->sizeimage)
 			return -EINVAL;
-		count += vq->num_buffers;
+		count += q_num_bufs;
 	}
 
 	count = min_t(__u32, VID_MEM_LIMIT / pix->sizeimage, count);
 
 	if (*nplanes)
-		*nbuffers = (count < vq->num_buffers) ? 0 :
-			count - vq->num_buffers;
+		*nbuffers = (count < q_num_bufs) ? 0 :
+			count - q_num_bufs;
 	else
 		*nbuffers = count;