linux-kernel - Re: [PATCH -next] arm64: alternatives: Use vdso/bits.h instead of linux/bits.h

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Date:   Wed,  5 Oct 2022 11:52:02 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Nathan Chancellor <nathan@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Will Deacon <will@...nel.org>
Cc:     patches@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH -next] arm64: alternatives: Use vdso/bits.h instead of linux/bits.h

On Mon, 3 Oct 2022 12:37:59 -0700, Nathan Chancellor wrote:
> When building with CONFIG_LTO after commit ba00c2a04fa5 ("arm64: fix the
> build with binutils 2.27"), the following build error occurs:
> 
>   In file included from arch/arm64/kernel/module-plts.c:6:
>   In file included from include/linux/elf.h:6:
>   In file included from arch/arm64/include/asm/elf.h:8:
>   In file included from arch/arm64/include/asm/hwcap.h:9:
>   In file included from arch/arm64/include/asm/cpufeature.h:9:
>   In file included from arch/arm64/include/asm/alternative-macros.h:5:
>   In file included from include/linux/bits.h:22:
>   In file included from include/linux/build_bug.h:5:
>   In file included from include/linux/compiler.h:248:
>   In file included from arch/arm64/include/asm/rwonce.h:71:
>   include/asm-generic/rwonce.h:67:9: error: expected string literal in 'asm'
>           return __READ_ONCE(*(unsigned long *)addr);
>                 ^
>   arch/arm64/include/asm/rwonce.h:43:16: note: expanded from macro '__READ_ONCE'
>                   asm volatile(__LOAD_RCPC(b, %w0, %1)                    \
>                               ^
>   arch/arm64/include/asm/rwonce.h:17:2: note: expanded from macro '__LOAD_RCPC'
>           ALTERNATIVE(                                                    \
>           ^
> 
> [...]

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

[1/1] arm64: alternatives: Use vdso/bits.h instead of linux/bits.h
      https://git.kernel.org/arm64/c/d2995249a2f7

-- 
Catalin