From: Segher Boessenkool <segher@kernel.crashing.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Geoff Levand <geoff@infradead.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
Bill Wendling <morbo@google.com>,
Justin Stitt <justinstitt@google.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev
Subject: Re: [PATCH RESEND 1/2] powerpc/ps3: Drop redundant result assignment
Date: Wed, 18 Mar 2026 06:51:24 -0500 [thread overview]
Message-ID: <abqRvDiAI85w2bCe@gate> (raw)
In-Reply-To: <20260317130823.240279-3-krzysztof.kozlowski@oss.qualcomm.com>
On Tue, Mar 17, 2026 at 02:08:24PM +0100, Krzysztof Kozlowski wrote:
> Return value of ps3_start_probe_thread() is not used, so code can be
> simplified to fix W=1 clang warnings:
>
> arch/powerpc/platforms/ps3/device-init.c:953:6: error: variable 'result' set but not used [-Werror,-Wunused-but-set-variable]
And this is exactly why -Werror is harmful. A boring harmless warning
turned into a build break :-(
You can sometimes usefully turn *some* warnings into errors, and any
user is of course free to invite as much pain as he or she wants to
bear, but heaping nonsense like this onto unsuspecting users is just
evil. And it is even worse when the warnings can change with compiler
version!
Segher
next prev parent reply other threads:[~2026-03-18 11:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-17 13:08 [PATCH RESEND 1/2] powerpc/ps3: Drop redundant result assignment Krzysztof Kozlowski
2026-03-17 13:08 ` [PATCH RESEND 2/2] powerpc/pasemi: Drop redundant res assignment Krzysztof Kozlowski
2026-03-17 14:32 ` [PATCH RESEND 1/2] powerpc/ps3: Drop redundant result assignment Geert Uytterhoeven
2026-03-18 11:51 ` Segher Boessenkool [this message]
2026-03-18 11:54 ` Krzysztof Kozlowski
2026-03-18 11:58 ` Segher Boessenkool
2026-03-18 12:03 ` Krzysztof Kozlowski
2026-03-18 12:12 ` Segher Boessenkool
2026-03-18 14:59 ` Krzysztof Kozlowski
2026-03-18 12:21 ` Christophe Leroy (CS GROUP)
2026-03-18 15:00 ` Krzysztof Kozlowski
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