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Subject: media: meson: vdec: Stop direct calls to queue num_buffers field
Author: Benjamin Gaignard <benjamin.gaign...@collabora.com>
Date: Thu Nov 9 17:34:48 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>
Reviewed-by: Andrzej Pietrasiewicz <andrze...@collabora.com>
CC: Neil Armstrong <neil.armstr...@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mche...@kernel.org>
drivers/staging/media/meson/vdec/vdec.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
---
diff --git a/drivers/staging/media/meson/vdec/vdec.c
b/drivers/staging/media/meson/vdec/vdec.c
index 219185aaa588..1e2369f104c8 100644
--- a/drivers/staging/media/meson/vdec/vdec.c
+++ b/drivers/staging/media/meson/vdec/vdec.c
@@ -167,22 +167,23 @@ static void process_num_buffers(struct vb2_queue *q,
bool is_reqbufs)
{
const struct amvdec_format *fmt_out = sess->fmt_out;
- unsigned int buffers_total = q->num_buffers + *num_buffers;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
+ unsigned int buffers_total = q_num_bufs + *num_buffers;
u32 min_buf_capture = v4l2_ctrl_g_ctrl(sess->ctrl_min_buf_capture);
- if (q->num_buffers + *num_buffers < min_buf_capture)
- *num_buffers = min_buf_capture - q->num_buffers;
+ if (q_num_bufs + *num_buffers < min_buf_capture)
+ *num_buffers = min_buf_capture - q_num_bufs;
if (is_reqbufs && buffers_total < fmt_out->min_buffers)
- *num_buffers = fmt_out->min_buffers - q->num_buffers;
+ *num_buffers = fmt_out->min_buffers - q_num_bufs;
if (buffers_total > fmt_out->max_buffers)
- *num_buffers = fmt_out->max_buffers - q->num_buffers;
+ *num_buffers = fmt_out->max_buffers - q_num_bufs;
/* We need to program the complete CAPTURE buffer list
* in registers during start_streaming, and the firmwares
* are free to choose any of them to write frames to. As such,
* we need all of them to be queued into the driver
*/
- sess->num_dst_bufs = q->num_buffers + *num_buffers;
+ sess->num_dst_bufs = q_num_bufs + *num_buffers;
q->min_buffers_needed = max(fmt_out->min_buffers, sess->num_dst_bufs);
}
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