linux-kernel - Re: [PATCH] spi: bitbang: Fix lsb-first Rx

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Message-ID: <YuqjbFy3f0EtsokI@sirena.org.uk>
Date:   Wed, 3 Aug 2022 17:33:48 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Robin Murphy <robin.murphy@....com>
Cc:     Andreas Färber <afaerber@...e.de>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Christian Hewitt <christianshewitt@...il.com>,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] spi: bitbang: Fix lsb-first Rx

On Wed, Aug 03, 2022 at 04:22:13PM +0100, Robin Murphy wrote:
> On 2022-08-03 16:02, Mark Brown wrote:

> > So if this never worked we presumably have some systems out there which
> > somehow rely on the old behaviour that we need to fix somehow - copying

> Hmm, I can't imagine anyone's relying too critically on data transfer
> corruption :/

Unless it happens to get corrupted into what is actually wanted - it
wouldn't be the first time I've seen driver code bodge around some issue
in the core.  Doesn't seem super likely here given the nature of the bug
but it's alway worth checking.

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