[PATCH v15 25/56] media: pci: tw68: Stop direct calls to queue num_buffers field
From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Date: 2023-11-09 16:38:33
Also in:
linux-arm-msm, linux-media, linux-mediatek, linux-rockchip, linux-staging, lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest, tw68 video4linux driver · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds, Hans Verkuil
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: Fabrizio Castro <fabrizio.castro.jz@renesas.com> --- drivers/media/pci/tw68/tw68-video.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c
index 773a18702d36..79b627ebc92a 100644
--- a/drivers/media/pci/tw68/tw68-video.c
+++ b/drivers/media/pci/tw68/tw68-video.c@@ -360,13 +360,14 @@ static int tw68_queue_setup(struct vb2_queue *q, unsigned int sizes[], struct device *alloc_devs[]) { struct tw68_dev *dev = vb2_get_drv_priv(q); - unsigned tot_bufs = q->num_buffers + *num_buffers; + unsigned int q_num_bufs = vb2_get_num_buffers(q); + unsigned int tot_bufs = q_num_bufs + *num_buffers; unsigned size = (dev->fmt->depth * dev->width * dev->height) >> 3; if (tot_bufs < 2) tot_bufs = 2; tot_bufs = tw68_buffer_count(size, tot_bufs); - *num_buffers = tot_bufs - q->num_buffers; + *num_buffers = tot_bufs - q_num_bufs; /* * We allow create_bufs, but only if the sizeimage is >= as the * current sizeimage. The tw68_buffer_count calculation becomes quite
--
2.39.2
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