linux-kernel - Re: [PATCH] arm64: fix clang warning about TRAMP

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Message-Id: <164762664707.829336.4467700903354005127.b4-ty@arm.com>
Date:   Fri, 18 Mar 2022 18:10:28 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Will Deacon <will@...nel.org>, James Morse <james.morse@....com>,
        Arnd Bergmann <arnd@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     llvm@...ts.linux.dev,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: fix clang warning about TRAMP_VALIAS

On Wed, 16 Mar 2022 19:38:18 +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The newly introduced TRAMP_VALIAS definition causes a build warning
> with clang-14:
> 
> arch/arm64/include/asm/vectors.h:66:31: error: arithmetic on a null pointer treated as a cast from integer to pointer is a GNU extension [-Werror,-Wnull-pointer-arithmetic]
>                 return (char *)TRAMP_VALIAS + SZ_2K * slot;
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: fix clang warning about TRAMP_VALIAS
      https://git.kernel.org/arm64/c/7f34b43e07cb

-- 
Catalin