linux-kernel - Re: build failure of next-20220923 due to cbb0c02caf4b ("perf: arm64: Add SVE vector granule register to user regs")

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Message-ID: <20220923123329.GA13942@willie-the-truck>
Date:   Fri, 23 Sep 2022 13:33:31 +0100
From:   Will Deacon <will@...nel.org>
To:     "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
Cc:     James Clark <james.clark@....com>, Mark Brown <broonie@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-next@...r.kernel.org
Subject: Re: build failure of next-20220923 due to cbb0c02caf4b ("perf:
 arm64: Add SVE vector granule register to user regs")

On Fri, Sep 23, 2022 at 12:42:37PM +0100, Sudip Mukherjee (Codethink) wrote:
> Hi All,
> 
> A native build of next-20220923 on arm64 host has failed with the error:
> 
> ./usr/include/asm/perf_regs.h:42:26: error: C++ style comments are not allowed in ISO C90
>    42 |  PERF_REG_ARM64_VG = 46, // SVE Vector Granule
>       |                          ^
> ./usr/include/asm/perf_regs.h:42:26: note: (this will be reported only once per input file)
> 
> I have not bisected but I think it will be from cbb0c02caf4b ("perf: arm64: Add SVE vector granule register to user regs").
> 
> I will be happy to test any patch or provide any extra log if needed.

I had a crack at fixing this last night when it was first reported, so
hopefully the next -next will be alright.

Will