| Message ID | 20230914133323.198857-24-benjamin.gaignard@collabora.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add DELETE_BUF ioctl | expand |
On 14/09/2023 15:32, 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/pci/cx18/cx18-streams.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c > index 597472754c4c..a7a7e006b3be 100644 > --- a/drivers/media/pci/cx18/cx18-streams.c > +++ b/drivers/media/pci/cx18/cx18-streams.c > @@ -105,6 +105,7 @@ static int cx18_queue_setup(struct vb2_queue *vq, > unsigned int sizes[], struct device *alloc_devs[]) > { > struct cx18_stream *s = vb2_get_drv_priv(vq); > + unsigned int q_num_bufs = vb2_get_num_buffers(vq); > struct cx18 *cx = s->cx; > unsigned int szimage; > > @@ -121,8 +122,8 @@ static int cx18_queue_setup(struct vb2_queue *vq, > * Let's request at least three buffers: two for the > * DMA engine and one for userspace. > */ > - if (vq->num_buffers + *nbuffers < 3) > - *nbuffers = 3 - vq->num_buffers; > + if (q_num_bufs + *nbuffers < 3) > + *nbuffers = 3 - q_num_bufs; From what I can see, this driver already sets min_buffers_needed to 3, so this check can just be dropped. Hans > > if (*nplanes) { > if (*nplanes != 1 || sizes[0] < szimage)
diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c index 597472754c4c..a7a7e006b3be 100644 --- a/drivers/media/pci/cx18/cx18-streams.c +++ b/drivers/media/pci/cx18/cx18-streams.c @@ -105,6 +105,7 @@ static int cx18_queue_setup(struct vb2_queue *vq, unsigned int sizes[], struct device *alloc_devs[]) { struct cx18_stream *s = vb2_get_drv_priv(vq); + unsigned int q_num_bufs = vb2_get_num_buffers(vq); struct cx18 *cx = s->cx; unsigned int szimage; @@ -121,8 +122,8 @@ static int cx18_queue_setup(struct vb2_queue *vq, * Let's request at least three buffers: two for the * DMA engine and one for userspace. */ - if (vq->num_buffers + *nbuffers < 3) - *nbuffers = 3 - vq->num_buffers; + if (q_num_bufs + *nbuffers < 3) + *nbuffers = 3 - q_num_bufs; if (*nplanes) { if (*nplanes != 1 || sizes[0] < szimage)
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> --- drivers/media/pci/cx18/cx18-streams.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)