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Subject: media: pci: tw68: Stop direct calls to queue num_buffers field
Author: Benjamin Gaignard <benjamin.gaign...@collabora.com>
Date: Thu Nov 9 17:34:41 2023 +0100
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.gaign...@collabora.com>
CC: Fabrizio Castro <fabrizio.castro...@renesas.com>
Reviewed-by: Andrzej Pietrasiewicz <andrze...@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mche...@kernel.org>
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
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