linux-kernel - Re: [PATCH v9 1/6] media: verisilicon: Do not set context src/dst formats in reset functions

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Message-ID: <26addb7d-bb9d-34e8-d4fe-e323ff488101@collabora.com>
Date:   Thu, 27 Apr 2023 03:49:48 +0530
From:   Shreeya Patel <shreeya.patel@...labora.com>
To:     Benjamin Gaignard <benjamin.gaignard@...labora.com>
Cc:     linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel@...labora.com, robert.mader@...labora.com,
        nicolas.dufresne@...labora.co.uk, ezequiel@...guardiasur.com.ar,
        festevam@...il.com, p.zabel@...gutronix.de, mchehab@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        hverkuil-cisco@...all.nl, linux-imx@....com,
        regressions@...ts.linux.dev
Subject: Re: [PATCH v9 1/6] media: verisilicon: Do not set context src/dst
 formats in reset functions

Hi Benjamin,

On 20/02/23 16:18, Benjamin Gaignard wrote:
> Setting context source and destination formats should only be done
> in hantro_set_fmt_out() and hantro_set_fmt_cap() after check that
> the targeted queue is not busy.
> Remove these calls from hantro_reset_encoded_fmt() and
> hantro_reset_raw_fmt() to clean the driver.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>

KernelCI found this patch causes a regression in the
baseline.dmesg.alert test [1] on rk3399-rock-pi-4b [2],
see the bisection report for more details [3].

Let us know if you have any questions.


[1] https://github.com/kernelci/kernelci-core/blob/main/config/rootfs/debos/overlays/baseline/opt/kernelci/dmesg.sh
[2] https://linux.kernelci.org/test/case/id/6442e825f19134d74c2e865d/
[3] https://groups.io/g/kernelci-results/message/40740


Thanks,
Shreeya Patel

#regzbot introduced: db6f68b51e5c

> ---
>   drivers/media/platform/verisilicon/hantro_v4l2.c | 9 ++-------
>   1 file changed, 2 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
> index c0d427956210..d8aa42bd4cd4 100644
> --- a/drivers/media/platform/verisilicon/hantro_v4l2.c
> +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
> @@ -382,13 +382,10 @@ hantro_reset_encoded_fmt(struct hantro_ctx *ctx)
>   
>   	vpu_fmt = hantro_get_default_fmt(ctx, true);
>   
> -	if (ctx->is_encoder) {
> -		ctx->vpu_dst_fmt = vpu_fmt;
> +	if (ctx->is_encoder)
>   		fmt = &ctx->dst_fmt;
> -	} else {
> -		ctx->vpu_src_fmt = vpu_fmt;
> +	else
>   		fmt = &ctx->src_fmt;
> -	}
>   
>   	hantro_reset_fmt(fmt, vpu_fmt);
>   	fmt->width = vpu_fmt->frmsize.min_width;
> @@ -408,11 +405,9 @@ hantro_reset_raw_fmt(struct hantro_ctx *ctx)
>   	raw_vpu_fmt = hantro_get_default_fmt(ctx, false);
>   
>   	if (ctx->is_encoder) {
> -		ctx->vpu_src_fmt = raw_vpu_fmt;
>   		raw_fmt = &ctx->src_fmt;
>   		encoded_fmt = &ctx->dst_fmt;
>   	} else {
> -		ctx->vpu_dst_fmt = raw_vpu_fmt;
>   		raw_fmt = &ctx->dst_fmt;
>   		encoded_fmt = &ctx->src_fmt;
>   	}