| Message ID | 20230914133323.198857-22-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| State | Superseded |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/dvb-core/dvb_vb2.c | 1 - > drivers/media/dvb-frontends/rtl2832_sdr.c | 5 +++-- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c > index 3a966fdf814c..a731b755a0b9 100644 > --- a/drivers/media/dvb-core/dvb_vb2.c > +++ b/drivers/media/dvb-core/dvb_vb2.c > @@ -177,7 +177,6 @@ int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const char *name, int nonblocking) > q->ops = &dvb_vb2_qops; > q->mem_ops = &vb2_vmalloc_memops; > q->buf_ops = &dvb_vb2_buf_ops; > - q->num_buffers = 0; > ret = vb2_core_queue_init(q); > if (ret) { > ctx->state = DVB_VB2_STATE_NONE; This touches the dvb-core, and should be in a separate patch. > diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c > index 02c619e51641..023db6e793f8 100644 > --- a/drivers/media/dvb-frontends/rtl2832_sdr.c > +++ b/drivers/media/dvb-frontends/rtl2832_sdr.c > @@ -439,12 +439,13 @@ static int rtl2832_sdr_queue_setup(struct vb2_queue *vq, > { > struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); > struct platform_device *pdev = dev->pdev; > + unsigned int q_num_bufs = vb2_get_num_buffers(vq); > > dev_dbg(&pdev->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(dev->buffersize); > dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); This is really a generic issue with most of these patches: queue_setup checks for a minimum number of buffers, but that should instead be configured through the q->min_buffers_needed field. A lot of older drivers were written before that field was added. This is a good opportunity to just drop this check from queue_setup and instead just set q->min_buffers_needed to 8. Regards, Hans
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c index 3a966fdf814c..a731b755a0b9 100644 --- a/drivers/media/dvb-core/dvb_vb2.c +++ b/drivers/media/dvb-core/dvb_vb2.c @@ -177,7 +177,6 @@ int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const char *name, int nonblocking) q->ops = &dvb_vb2_qops; q->mem_ops = &vb2_vmalloc_memops; q->buf_ops = &dvb_vb2_buf_ops; - q->num_buffers = 0; ret = vb2_core_queue_init(q); if (ret) { ctx->state = DVB_VB2_STATE_NONE; diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c index 02c619e51641..023db6e793f8 100644 --- a/drivers/media/dvb-frontends/rtl2832_sdr.c +++ b/drivers/media/dvb-frontends/rtl2832_sdr.c @@ -439,12 +439,13 @@ static int rtl2832_sdr_queue_setup(struct vb2_queue *vq, { struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); struct platform_device *pdev = dev->pdev; + unsigned int q_num_bufs = vb2_get_num_buffers(vq); dev_dbg(&pdev->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(dev->buffersize); dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> --- drivers/media/dvb-core/dvb_vb2.c | 1 - drivers/media/dvb-frontends/rtl2832_sdr.c | 5 +++-- 2 files changed, 3 insertions(+), 3 deletions(-)