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From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@kernel.org>
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In-Reply-To: <20240403080702.3509288-1-arnd@kernel.org>
References: <20240403080702.3509288-1-arnd@kernel.org>
Subject: Re: (subset) [PATCH 00/34] address all -Wunused-const warnings
Message-Id: <171377378377.1025456.1313405994816400451.b4-ty@ellerman.id.au>
Date: Mon, 22 Apr 2024 18:16:23 +1000
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On Wed, 03 Apr 2024 10:06:18 +0200, Arnd Bergmann wrote:
> Compilers traditionally warn for unused 'static' variables, but not
> if they are constant. The reason here is a custom for C++ programmers
> to define named constants as 'static const' variables in header files
> instead of using macros or enums.
> 
> In W=1 builds, we get warnings only static const variables in C
> files, but not in headers, which is a good compromise, but this still
> produces warning output in at least 30 files. These warnings are
> almost all harmless, but also trivial to fix, and there is no
> good reason to warn only about the non-const variables being unused.
> 
> [...]

Applied to powerpc/next.

[01/34] powerpc/fsl-soc: hide unused const variable
        https://git.kernel.org/powerpc/c/01acaf3aa75e1641442cc23d8fe0a7bb4226efb1

cheers