linux-kernel - Re: [PATCH] ASoC: meson: add helpers for clk_disable

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Message-Id: <bcd477f9-8619-4121-83ce-fa8ba05a36aa@app.fastmail.com>
Date: Tue, 13 Feb 2024 13:45:19 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Jerome Brunet" <jbrunet@...libre.com>
Cc: "Arnd Bergmann" <arnd@...nel.org>, "Stephen Boyd" <sboyd@...nel.org>,
 "Mark Brown" <broonie@...nel.org>, "Liam Girdwood" <lgirdwood@...il.com>,
 "Jaroslav Kysela" <perex@...ex.cz>, "Takashi Iwai" <tiwai@...e.com>,
 "Neil Armstrong" <neil.armstrong@...aro.org>,
 "Kevin Hilman" <khilman@...libre.com>,
 "Martin Blumenstingl" <martin.blumenstingl@...glemail.com>,
 "Nathan Chancellor" <nathan@...nel.org>,
 "Nick Desaulniers" <ndesaulniers@...gle.com>,
 "Bill Wendling" <morbo@...gle.com>, "Justin Stitt" <justinstitt@...gle.com>,
 alsa-devel@...a-project.org, linux-sound@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-amlogic@...ts.infradead.org,
 linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] ASoC: meson: add helpers for clk_disable_unprepare

On Tue, Feb 13, 2024, at 12:09, Jerome Brunet wrote:
> On Tue 13 Feb 2024 at 11:52, "Arnd Bergmann" <arnd@...db.de> wrote:
>
>> On Tue, Feb 13, 2024, at 11:36, Jerome Brunet wrote:
>>> On Tue 13 Feb 2024 at 11:11, Arnd Bergmann <arnd@...nel.org> wrote:
>>
>>> This probably pre-dates the introduction of devm_clk_get_enabled()
>>> It would probably be better to use that instead of duplicating helper
>>> functions which do the same thing.
>>
>> Ah, I had not thought of that interface either, so you are probably
>> right that this is the best way to do it.
>> Can you send a replacement patch then and add my Reported-by?
>
> Sure.
>
> How may I reproduce the problem ?
> Just tried with 'Debian clang version 16.0.6 (19)', no warning.
>
> I suppose I need to add something ?

The warning is currently only enabled at W=1 level until
we have fixed all the existing diagnostic output. I have
sent the other ones today, but for now, please test with
'make W=1'.

     Arnd