linux-kernel - Re: [PATCH v2 1/3] base: mark 'no

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Message-ID: <aaf432cc-bb42-bfee-dfe6-ec0c4c9d87d5@kernel.org>
Date:   Tue, 27 Jul 2021 12:10:10 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Bill Wendling <morbo@...gle.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-toolchains@...r.kernel.org
Subject: Re: [PATCH v2 1/3] base: mark 'no_warn' as unused

On 7/27/2021 12:04 PM, 'Nick Desaulniers' via Clang Built Linux wrote:
> On Tue, Jul 27, 2021 at 11:32 AM Nathan Chancellor <nathan@...nel.org> wrote:
>>
>> On 7/27/2021 10:39 AM, 'Nick Desaulniers' via Clang Built Linux wrote:
>>> Isn't -Wunused-but-set-variable enabled only for W=1 builds?
>>
>> Maybe Bill's tree does not have commit 885480b08469 ("Makefile: Move
>> -Wno-unused-but-set-variable out of GCC only block"), which disables the
>> warning for clang just like GCC for regular builds?
> 
> Looks like 885480b08469, which landed in v5.13-rc1, so that's a
> possibility.  Should that be sent to stable@ so that we don't observe
> these warnings for non-W=1 builds of stable branches with newer
> versions of clang?

It is already in all supported stable versions.

Cheers,
Nathan