linux-kernel - Re: pcm|dmaengine|imx-sdma race condition on i.MX6

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Date:   Fri, 21 Aug 2020 06:34:18 +0200
From:   Richard Leitner <richard.leitner@...data.com>
To:     Robin Gong <yibin.gong@....com>
CC:     Benjamin Bara - SKIDATA <Benjamin.Bara@...data.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        "timur@...nel.org" <timur@...nel.org>,
        "nicoleotsuka@...il.com" <nicoleotsuka@...il.com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        dl-linux-imx <linux-imx@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
Subject: Re: pcm|dmaengine|imx-sdma race condition on i.MX6

On Thu, Aug 20, 2020 at 03:01:44PM +0000, Robin Gong wrote:
> On 2020/08/19 22:26 Benjamin Bara - SKIDATA <Benjamin.Bara@...data.com> wrote: 
> > 
> > @Robin:
> > Is it possible to tag the commits for the stable-tree
> > Cc: stable@...r.kernel.org?
> Could my patch work in your side? If yes, I will add
> Cc: stable@...r.kernel.org 

I've tested the patches 3 & 4 (removing sdmac->context_loaded) of the
series you mentioned and sent Tested-by tags for them [1,2], as they
fix the EIO problems for our use case.

So from our side they are fine for stable.

[1] https://lore.kernel.org/dmaengine/20200817053813.GA551027@pcleri/T/#u
[2] https://lore.kernel.org/dmaengine/20200817053820.GB551027@pcleri/T/#u

regards;rl