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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Date:   Tue, 1 Aug 2023 19:53:37 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Bart Van Assche <bvanassche@....org>
Cc:     open list <linux-kernel@...r.kernel.org>,
        linux-scsi@...r.kernel.org,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Avri Altman <avri.altman@....com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Arnd Bergmann <arnd@...db.de>,
        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, 1 Aug 2023 at 18:53, Bart Van Assche <bvanassche@....org> wrote:
>
> On 8/1/23 05:16, Naresh Kamboju wrote:
> > Following build error noticed while building Linux next-20230801 tag
> > arm64 defconfig with gcc-8 toolchain.
> >
> > Regressions found on arm64:
> >
> >    - build/gcc-8-defconfig
> >    - build/gcc-8-defconfig-40bc7ee5
> >
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> >
> > log:
> > -----
> > In function 'ufshcd_check_header_layout',
> >      inlined from 'ufshcd_core_init' at
> > /builds/linux/drivers/ufs/core/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: ((u8 *)&(struct request_desc_header){ .enable_crypto = 1})[2]
> > != 0x80
> >    _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
> >                                        ^
> >
> >
> > Links:
> >   - 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.


If you want to reproduce with gcc-8 you may follow these steps.

# To install tuxmake to your home directory at ~/.local/bin:
# pip3 install -U --user tuxmake
#
# Or install a deb/rpm depending on the running distribution
# See https://tuxmake.org/install-deb/ or
# https://tuxmake.org/install-rpm/
#
# See https://docs.tuxmake.org/ for complete documentation.
# Original tuxmake command with fragments listed below.
# tuxmake --runtime podman --target-arch arm64 --toolchain gcc-8
--kconfig defconfig


tuxmake --runtime podman --target-arch arm64 --toolchain gcc-8
--kconfig https://storage.tuxsuite.com/public/linaro/lkft/builds/2TN3A8EaWQJAcOYnbXZnkb7D3H7/config

>
> Thanks,
>
> Bart.

- Naresh