linux-kernel - Re: [PATCH] kselftest/alsa: Fix validation of writes to volatile controls

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Date: Sun, 16 Jun 2024 09:32:24 +0200
From: Takashi Iwai <tiwai@...e.de>
To: Mark Brown <broonie@...nel.org>
Cc: Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Shuah Khan <shuah@...nel.org>,
	linux-sound@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kselftest/alsa: Fix validation of writes to volatile controls

On Fri, 14 Jun 2024 18:40:37 +0200,
Mark Brown wrote:
> 
> When validating writes to controls we check that whatever value we wrote
> actually appears in the control.  For volatile controls we cannot assume
> that this will be the case, the value may be changed at any time
> including between our write and read.  Handle this by moving the check
> for volatile controls that we currently do for events to a separate
> block and just verifying that whatever value we read is valid for the
> control.
> 
> Signed-off-by: Mark Brown <broonie@...nel.org>

I'll pick this in v3 patch set.


thanks,

Takashi