linux-kernel - Re: [PATCH 16/20] media: s5p-mfc: Fix to handle reference queue during finishing

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Date:   Tue, 17 May 2022 16:04:56 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Smitha T Murthy <smitha.t@...sung.com>,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     m.szyprowski@...sung.com, andrzej.hajda@...el.com,
        mchehab@...nel.org, hverkuil-cisco@...all.nl,
        ezequiel@...guardiasur.com.ar, jernej.skrabec@...il.com,
        benjamin.gaignard@...labora.com, stanimir.varbanov@...aro.org,
        dillon.minfei@...il.com, david.plowman@...pberrypi.com,
        mark.rutland@....com, robh+dt@...nel.org, krzk+dt@...nel.org,
        andi@...zian.org, alim.akhtar@...sung.com,
        aswani.reddy@...sung.com, pankaj.dubey@...sung.com,
        linux-fsd@...la.com
Subject: Re: [PATCH 16/20] media: s5p-mfc: Fix to handle reference queue
 during finishing

On 17/05/2022 14:55, Smitha T Murthy wrote:
> On receiving last buffer driver puts MFC to
> MFCINST_FINISHING state which in turn skips
> transferring of frame from SRC to REF queue.
> This causes driver to stop MFC encoding and
> last frame is lost.

What type of wrapping is it exactly?

https://elixir.bootlin.com/linux/v5.18-rc4/source/Documentation/process/submitting-patches.rst#L586

> 
> This patch guarantees safe handling of frames
> during MFCINST_FINISHING and correct clearing
> of workbit to avoid early stopping of encoding.
> 

This looks like a bugfix so:
1. Send it separately please.
2. Add Fixes tag.
3. Add Cc stable tag.

Best regards,
Krzysztof