linux-kernel - Re: [PATCH] Makefile: 'Promote' -Wunused-but-set-variable to W=3

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Message-ID: <20210911213401.GE1583@gate.crashing.org>
Date:   Sat, 11 Sep 2021 16:34:01 -0500
From:   Segher Boessenkool <segher@...nel.crashing.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     masahiroy@...nel.org, linux-kernel@...r.kernel.org,
        nathan@...nel.org, ndesaulniers@...gle.com, x86@...nel.org,
        linux-toolchains@...r.kernel.org
Subject: Re: [PATCH] Makefile: 'Promote' -Wunused-but-set-variable to W=3

On Sat, Sep 11, 2021 at 04:29:05PM +0200, Peter Zijlstra wrote:
> Upgrade -Wunused-but-set-variable to W=3 to avoid the build robots
> sending endless spam for this garbage warning.

"This warning for garbage code" you mean?

> By promoting it to W=3 the robots will no longer report it and people
> will no longer attempt to fix them by making the code worse.

Instead, they will not see such warnings, and make the code worse.


Segher