linux-kernel - Re: [PATCH] ARM64: mark cpus_have_hwcap as __maybe

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Message-ID: <20151112145759.GH5627@e104818-lin.cambridge.arm.com>
Date:	Thu, 12 Nov 2015 14:57:59 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Will Deacon <will.deacon@....com>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	"Suzuki K. Poulose" <suzuki.poulose@....com>
Subject: Re: [PATCH] ARM64: mark cpus_have_hwcap as __maybe_unused

On Thu, Nov 12, 2015 at 03:20:16PM +0100, Arnd Bergmann wrote:
> cpus_have_hwcap() is defined as a 'static' function an only used in
> one place that is inside of an #ifdef, so we get a warning when
> the only user is disabled:
> 
> arch/arm64/kernel/cpufeature.c:699:13: warning: 'cpus_have_hwcap' defined but not used [-Wunused-function]
> 
> This marks the function as __maybe_unused, so the compiler knows that
> it can drop the function definition without warning about it.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 37b01d53ceef ("arm64/HWCAP: Use system wide safe values")
> ---
> Found on arm64 allnoconfig

I applied this patch and the other two you just posted. Thanks.

-- 
Catalin
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