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Message-Id: <20231017144756.34719-41-benjamin.gaignard@collabora.com>
Date: Tue, 17 Oct 2023 16:47:40 +0200
From: Benjamin Gaignard <benjamin.gaignard@...labora.com>
To: mchehab@...nel.org, tfiga@...omium.org, m.szyprowski@...sung.com,
ming.qian@....com, ezequiel@...guardiasur.com.ar,
p.zabel@...gutronix.de, gregkh@...uxfoundation.org,
hverkuil-cisco@...all.nl, nicolas.dufresne@...labora.com
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
linux-rockchip@...ts.infradead.org, linux-staging@...ts.linux.dev,
kernel@...labora.com,
Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH v12 40/56] media: usb: cx231xx: Stop direct calls to queue num_buffers field
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
futur.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.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;
--
2.39.2
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