| Message ID | 20231031163104.112469-23-benjamin.gaignard@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add DELETE_BUF ioctl | expand |
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: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> > --- > drivers/media/pci/tw686x/tw686x-video.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c > index 3ebf7a2c95f0..6bc6d143d18c 100644 > --- a/drivers/media/pci/tw686x/tw686x-video.c > +++ b/drivers/media/pci/tw686x/tw686x-video.c > @@ -423,6 +423,7 @@ static int tw686x_queue_setup(struct vb2_queue *vq, > unsigned int sizes[], struct device *alloc_devs[]) > { > struct tw686x_video_channel *vc = vb2_get_drv_priv(vq); > + unsigned int q_num_bufs = vb2_get_num_buffers(vq); > unsigned int szimage = > (vc->width * vc->height * vc->format->depth) >> 3; > > @@ -430,8 +431,8 @@ static int tw686x_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)
diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c index 3ebf7a2c95f0..6bc6d143d18c 100644 --- a/drivers/media/pci/tw686x/tw686x-video.c +++ b/drivers/media/pci/tw686x/tw686x-video.c @@ -423,6 +423,7 @@ static int tw686x_queue_setup(struct vb2_queue *vq, unsigned int sizes[], struct device *alloc_devs[]) { struct tw686x_video_channel *vc = vb2_get_drv_priv(vq); + unsigned int q_num_bufs = vb2_get_num_buffers(vq); unsigned int szimage = (vc->width * vc->height * vc->format->depth) >> 3; @@ -430,8 +431,8 @@ static int tw686x_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_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: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> --- drivers/media/pci/tw686x/tw686x-video.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)