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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Fri, 21 Jan 2022 20:54:20 +0530
Message-ID: <CA+G9fYuKGaDfyke81wbSe2yqTm6GqWNuKw2wB6NFaCLa1q7z6A@mail.gmail.com>
Subject: Re: [next] parisc: allnoconfig: ERROR: modpost: Section mismatches
 detected. Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
To:     John David Anglin <dave.anglin@bell.net>,
        Linux-Next Mailing List <linux-next@vger.kernel.org>,
        open list <linux-kernel@vger.kernel.org>,
        regressions@lists.linux.dev, lkft-triage@lists.linaro.org,
        Linux PM <linux-pm@vger.kernel.org>,
        linux-fsdevel@vger.kernel.org,
        linux-parisc <linux-parisc@vger.kernel.org>
Cc:     Alexander Viro <viro@zeniv.linux.org.uk>, pavel@ucw.cz,
        rppt@kernel.org, Andrew Morton <akpm@linux-foundation.org>,
        linux-mm <linux-mm@kvack.org>,
        Anders Roxell <anders.roxell@linaro.org>,
        Helge Deller <deller@gmx.de>, Deller <deller@kernel.org>,
        James Bottomley <James.Bottomley@hansenpartnership.com>
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On Fri, 21 Jan 2022 at 13:16, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>
> Linux next-20220121 parisc allnoconfig build failed with gcc-9/10/11.
>
> make --silent --keep-going --jobs=8 ARCH=parisc
> CROSS_COMPILE=hppa-linux-gnu- 'CC=sccache hppa-linux-gnu-gcc'
> 'HOSTCC=sccache gcc'
>
> WARNING: modpost: vmlinux.o(.text+0x1c8): Section mismatch in
> reference from the function ksys_sync() to the function
> .init.text:memblock_alloc_try_nid()
> The function ksys_sync() references
> the function __init memblock_alloc_try_nid().
> This is often because ksys_sync lacks a __init
> annotation or the annotation of memblock_alloc_try_nid is wrong.
>
> ERROR: modpost: Section mismatches detected.
> Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
> make[2]: *** [/builds/linux/scripts/Makefile.modpost:59:
> vmlinux.symvers] Error 1

Anders bisected this build and the first bad commit is point to,

first bad commit: [4f05e5a3946923676e147ad0e33c80df8249b2fe]
parisc: Drop __init from map_pages declaration


> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
>
> metadata:
>   git branch: master
>   git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
>   git describe: next-20220121
>   kernel-config: https://builds.tuxbuild.com/23zIAxC4uCgy4zadA01JYyOwCR4/config
>   build: https://builds.tuxbuild.com/23zIAxC4uCgy4zadA01JYyOwCR4/
>
> # To install tuxmake on your system globally:
> # sudo pip3 install -U tuxmake
> #
> # See https://docs.tuxmake.org/ for complete documentation.
> # Original tuxmake command with fragments listed below.
>
> tuxmake --runtime podman --target-arch parisc --toolchain gcc-11
> --kconfig allnoconfig
>
> --
> Linaro LKFT
> https://lkft.linaro.org