diff mbox series

[v7,37/49] media: usb: airspy: Stop direct calls to queue num_buffers field

Message ID 20230914133323.198857-38-benjamin.gaignard@collabora.com (mailing list archive)
State New, archived
Headers show
Series Add DELETE_BUF ioctl | expand

Commit Message

Benjamin Gaignard Sept. 14, 2023, 1:33 p.m. UTC
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
 drivers/media/usb/airspy/airspy.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Hans Verkuil Sept. 19, 2023, 2:16 p.m. UTC | #1
On 14/09/2023 15:33, Benjamin Gaignard wrote:
> Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
>  drivers/media/usb/airspy/airspy.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c
> index 462eb8423506..e24e655fb1db 100644
> --- a/drivers/media/usb/airspy/airspy.c
> +++ b/drivers/media/usb/airspy/airspy.c
> @@ -482,12 +482,13 @@ static int airspy_queue_setup(struct vb2_queue *vq,
>  		unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[])
>  {
>  	struct airspy *s = vb2_get_drv_priv(vq);
> +	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
>  
>  	dev_dbg(s->dev, "nbuffers=%d\n", *nbuffers);
>  
>  	/* Need at least 8 buffers */
> -	if (vq->num_buffers + *nbuffers < 8)
> -		*nbuffers = 8 - vq->num_buffers;
> +	if (q_num_bufs + *nbuffers < 8)
> +		*nbuffers = 8 - q_num_bufs;
>  	*nplanes = 1;
>  	sizes[0] = PAGE_ALIGN(s->buffersize);
>  

Drop the check, instead set min_buffers_needed to 8.

Regards,

	Hans
diff mbox series

Patch

diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c
index 462eb8423506..e24e655fb1db 100644
--- a/drivers/media/usb/airspy/airspy.c
+++ b/drivers/media/usb/airspy/airspy.c
@@ -482,12 +482,13 @@  static int airspy_queue_setup(struct vb2_queue *vq,
 		unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[])
 {
 	struct airspy *s = vb2_get_drv_priv(vq);
+	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
 
 	dev_dbg(s->dev, "nbuffers=%d\n", *nbuffers);
 
 	/* Need at least 8 buffers */
-	if (vq->num_buffers + *nbuffers < 8)
-		*nbuffers = 8 - vq->num_buffers;
+	if (q_num_bufs + *nbuffers < 8)
+		*nbuffers = 8 - q_num_bufs;
 	*nplanes = 1;
 	sizes[0] = PAGE_ALIGN(s->buffersize);