linux-kernel - Re: sound/soc/meson/t9015.c:315:34: warning: unused variable 't9015

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Message-ID: <20200610163926.GI5005@sirena.org.uk>
Date:   Wed, 10 Jun 2020 17:39:26 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Jerome Brunet <jbrunet@...libre.com>
Cc:     kbuild test robot <lkp@...el.com>, kbuild-all@...ts.01.org,
        clang-built-linux@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: sound/soc/meson/t9015.c:315:34: warning: unused variable
 't9015_ids'

On Wed, Jun 10, 2020 at 05:31:03PM +0200, Jerome Brunet wrote:

> I'm not sure what to do with this report.
> I tried to reproduce has instructed, the log is full of warnings and the
> compilation eventually fails to link.

> It seems that most (if not all) drivers with a MODULE_DEVICE_TABLE() show
> this warning with the provided .config (COMPILE_TEST).

> When compiled with gcc, no such warning is shown.
> I can remove COMPILE_TEST for this driver, it will make the warning go
> away but I'm not sure it is appropriate.

I'd just ignore it for now - it seems like there's lots of false
positives from this warning which like you say are more global issues
and only show up at W=1.

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