| Message ID | 20231031163104.112469-41-benjamin.gaignard@collabora.com (mailing list archive) |
|---|---|
| State | New |
| 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> > --- > drivers/media/usb/cx231xx/cx231xx-417.c | 5 +++-- > drivers/media/usb/cx231xx/cx231xx-video.c | 5 +++-- > 2 files changed, 6 insertions(+), 4 deletions(-) > > diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c > index fe4410a5e128..45973fe690b2 100644 > --- a/drivers/media/usb/cx231xx/cx231xx-417.c > +++ b/drivers/media/usb/cx231xx/cx231xx-417.c > @@ -1218,12 +1218,13 @@ static int queue_setup(struct vb2_queue *vq, > { > struct cx231xx *dev = vb2_get_drv_priv(vq); > unsigned int size = mpeglinesize * mpeglines; > + unsigned int q_num_bufs = vb2_get_num_buffers(vq); > > dev->ts1.ts_packet_size = mpeglinesize; > dev->ts1.ts_packet_count = mpeglines; > > - if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF) > - *nbuffers = CX231XX_MIN_BUF - vq->num_buffers; > + if (q_num_bufs + *nbuffers < CX231XX_MIN_BUF) > + *nbuffers = CX231XX_MIN_BUF - q_num_bufs; > > if (*nplanes) > return sizes[0] < size ? -EINVAL : 0; > diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c > index e23b8ccd79d4..c8eb4222319d 100644 > --- a/drivers/media/usb/cx231xx/cx231xx-video.c > +++ b/drivers/media/usb/cx231xx/cx231xx-video.c > @@ -714,11 +714,12 @@ static int queue_setup(struct vb2_queue *vq, > unsigned int sizes[], struct device *alloc_devs[]) > { > struct cx231xx *dev = vb2_get_drv_priv(vq); > + unsigned int q_num_bufs = vb2_get_num_buffers(vq); > > dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3; > > - if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF) > - *nbuffers = CX231XX_MIN_BUF - vq->num_buffers; > + if (q_num_bufs + *nbuffers < CX231XX_MIN_BUF) > + *nbuffers = CX231XX_MIN_BUF - q_num_bufs; > > if (*nplanes) > return sizes[0] < dev->size ? -EINVAL : 0;
diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c index fe4410a5e128..45973fe690b2 100644 --- a/drivers/media/usb/cx231xx/cx231xx-417.c +++ b/drivers/media/usb/cx231xx/cx231xx-417.c @@ -1218,12 +1218,13 @@ static int queue_setup(struct vb2_queue *vq, { struct cx231xx *dev = vb2_get_drv_priv(vq); unsigned int size = mpeglinesize * mpeglines; + unsigned int q_num_bufs = vb2_get_num_buffers(vq); dev->ts1.ts_packet_size = mpeglinesize; dev->ts1.ts_packet_count = mpeglines; - if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF) - *nbuffers = CX231XX_MIN_BUF - vq->num_buffers; + if (q_num_bufs + *nbuffers < CX231XX_MIN_BUF) + *nbuffers = CX231XX_MIN_BUF - q_num_bufs; if (*nplanes) return sizes[0] < size ? -EINVAL : 0; diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c index e23b8ccd79d4..c8eb4222319d 100644 --- a/drivers/media/usb/cx231xx/cx231xx-video.c +++ b/drivers/media/usb/cx231xx/cx231xx-video.c @@ -714,11 +714,12 @@ static int queue_setup(struct vb2_queue *vq, unsigned int sizes[], struct device *alloc_devs[]) { struct cx231xx *dev = vb2_get_drv_priv(vq); + unsigned int q_num_bufs = vb2_get_num_buffers(vq); dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3; - if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF) - *nbuffers = CX231XX_MIN_BUF - vq->num_buffers; + if (q_num_bufs + *nbuffers < CX231XX_MIN_BUF) + *nbuffers = CX231XX_MIN_BUF - q_num_bufs; if (*nplanes) return sizes[0] < dev->size ? -EINVAL : 0;
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> --- drivers/media/usb/cx231xx/cx231xx-417.c | 5 +++-- drivers/media/usb/cx231xx/cx231xx-video.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-)