linux-kernel - Re: next: arm64: gcc-8-defconfig: ufshcd.c:10629:2: /builds/linux/include/linux/compiler_types.h:397:38: error: call to '__compiletime_assert_553' declared with attribute error: BUILD_BUG

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Message-Id: <227327a3-399a-4a9f-a775-e9627656b5a1@app.fastmail.com>
Date:   Tue, 01 Aug 2023 16:56:33 +0200
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Naresh Kamboju" <naresh.kamboju@...aro.org>,
        "Bart Van Assche" <bvanassche@....org>
Cc:     "open list" <linux-kernel@...r.kernel.org>,
        linux-scsi@...r.kernel.org,
        linux-next <linux-next@...r.kernel.org>,
        "Avri Altman" <avri.altman@....com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "Anders Roxell" <anders.roxell@...aro.org>
Subject: Re: next: arm64: gcc-8-defconfig: ufshcd.c:10629:2:
 /builds/linux/include/linux/compiler_types.h:397:38: error: call to
 '__compiletime_assert_553' declared with attribute error: BUILD_BUG_ON
 failed:

On Tue, Aug 1, 2023, at 16:23, Naresh Kamboju wrote:
> On Tue, 1 Aug 2023 at 18:53, Bart Van Assche <bvanassche@....org> wrote:

>> >   - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230801/testrun/18754886/suite/build/test/gcc-8-defconfig/log
>> >   - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230801/testrun/18754886/suite/build/test/gcc-8-defconfig/details/
>> >   - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230801/testrun/18754886/suite/build/test/gcc-8-defconfig/history/
>>
>> I can't reproduce this build error with a gcc-12 arm64 cross-compiler. How
>> important is gcc-8 for the ARM community?
>
> You are right,
> gcc-12 build pass.
> gcc-8 build failed.

I can also reproduce this with gcc-9.5.0 from
https://mirrors.edge.kernel.org/pub/tools/crosstool/ but
not with 10.5.0 or clang.

I get the same results for x86 with gcc-9.5.0.

See https://godbolt.org/z/GjGrW9znc for a partially reduced testcase.

      Arnd