linux-kernel - Re: Regression: spi: core: avoid waking pump thread from spi

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Message-ID: <20190123175609.GG7503@sirena.org.uk>
Date:   Wed, 23 Jan 2019 17:56:09 +0000
From:   Mark Brown <broonie@...nel.org>
To:     kernel@...tin.sperl.org
Cc:     Jon Hunter <jonathanh@...dia.com>,
        linux-tegra <linux-tegra@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-spi@...r.kernel.org
Subject: Re: Regression: spi: core: avoid waking pump thread from spi_sync
 instead run teardown delayed

On Sun, Jan 20, 2019 at 12:24:23PM +0100, kernel@...tin.sperl.org wrote:

> These kind of changes it requires are consuming a bit more time than
> I was hoping for.

Thanks for trying.

> So maybe at this very moment the best is reverting the patch.

Yes, I'm just going to do that for now.

> As for the root cause of the regression: my guess is that spi-mem is
> just not triggering a shutdown any more because of how message_pump works.

I'm fairly sure that's what's going on but not been able to get my head
around things enough to figure out what's going wrong yet.

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