linux-kernel - Re: [PATCH v14 13/56] media: mediatek: vcodec: Stop direct calls to queue num

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Date:   Thu, 9 Nov 2023 10:21:48 +0100
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        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, Bin Liu <bin.liu@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>
Subject: Re: [PATCH v14 13/56] media: mediatek: vcodec: Stop direct calls to
 queue num_buffers field

W dniu 31.10.2023 o 17:30, Benjamin Gaignard pisze:
> 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@...labora.com>

Reviewed-by: Andrzej Pietrasiewicz <anrdzej.p@...labora.com>

> CC: Bin Liu <bin.liu@...iatek.com>
> CC: Matthias Brugger <matthias.bgg@...il.com>
> ---
>   drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
> index eb381fa6e7d1..181884e798fd 100644
> --- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
> +++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
> @@ -912,7 +912,7 @@ static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count)
>   	return 0;
>   
>   err_start_stream:
> -	for (i = 0; i < q->num_buffers; ++i) {
> +	for (i = 0; i < vb2_get_num_buffers(q); ++i) {
>   		struct vb2_buffer *buf = vb2_get_buffer(q, i);
>   
>   		/*