linux-kernel - Re: [PATCH v1 10/18] media: hantro: Add helper functions for buffer information

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Date:   Wed, 17 Feb 2021 17:31:30 -0300
From:   Ezequiel Garcia <ezequiel@...labora.com>
To:     Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        p.zabel@...gutronix.de, mchehab@...nel.org, robh+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com, gregkh@...uxfoundation.org,
        mripard@...nel.org, paul.kocialkowski@...tlin.com, wens@...e.org,
        jernej.skrabec@...l.net, krzk@...nel.org, shengjiu.wang@....com,
        adrian.ratiu@...labora.com, aisheng.dong@....com, peng.fan@....com,
        Anson.Huang@....com, hverkuil-cisco@...all.nl
Cc:     linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        kernel@...labora.com
Subject: Re: [PATCH v1 10/18] media: hantro: Add helper functions for buffer
 information

Hi Benjamin,

On Wed, 2021-02-17 at 09:02 +0100, Benjamin Gaignard wrote:
> Add help functions to retrieve buffer address and size.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
> Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
> Signed-off-by: Adrian Ratiu <adrian.ratiu@...labora.com>
> ---
>  drivers/staging/media/hantro/hantro.h | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h
> index 2523c0d010df..a9b80b2c9124 100644
> --- a/drivers/staging/media/hantro/hantro.h
> +++ b/drivers/staging/media/hantro/hantro.h
> @@ -430,6 +430,22 @@ hantro_get_dec_buf_addr(struct hantro_ctx *ctx, struct vb2_buffer *vb)
>         return vb2_dma_contig_plane_dma_addr(vb, 0);
>  }
>  
> +static inline size_t
> +hantro_get_dec_buf_size(struct hantro_ctx *ctx, struct vb2_buffer *vb)
> +{
> +       if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt))
> +               return ctx->postproc.dec_q[vb->index].size;
> +       return vb2_plane_size(vb, 0);
> +}
> +
> +static inline void *
> +hantro_get_dec_buf(struct hantro_ctx *ctx, struct vb2_buffer *vb)
> +{
> +       if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt))
> +               return ctx->postproc.dec_q[vb->index].cpu;
> +       return vb2_plane_vaddr(vb, 0);
> +}
> +

It may sound like a nitpick but I think you could just squash this
change where it's needed. That way it's easier to review and
see why this was added.

Thanks,
Ezequiel