linux-kernel - ERROR: modpost: __mulodi4 [drivers/block/nbd.ko] undefined!

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Message-ID: <CA+G9fYvThAuTu1-Tg+7BaFofxfBkvBuTAnycuws-U4p473MeZQ@mail.gmail.com>
Date:   Wed, 8 Sep 2021 16:58:11 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     linux-block <linux-block@...r.kernel.org>, nbd@...er.debian.org,
        open list <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Cc:     Josef Bacik <josef@...icpanda.com>, Jens Axboe <axboe@...nel.dk>,
        lkft-triage@...ts.linaro.org,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: ERROR: modpost: __mulodi4 [drivers/block/nbd.ko] undefined!

Following build warnings/ errors noticed while building linux next
master branch with clang-13 for arm architecture with following configs.
  - footbridge_defconfig
  - mini2440_defconfig
  - s3c2410_defconfig

ERROR: modpost: __mulodi4 [drivers/block/nbd.ko] undefined!
make[2]: *** [/builds/linux/scripts/Makefile.modpost:134:
modules-only.symvers] Error 1
make[2]: *** Deleting file 'modules-only.symvers'
make[2]: Target '__modpost' not remade because of errors.
make[1]: *** [/builds/linux/Makefile:1952: modules] Error 2
make[1]: Target '__all' not remade because of errors.
make: *** [Makefile:226: __sub-make] Error 2
make: Target '__all' not remade because of errors.

Build config:
https://builds.tuxbuild.com/1xqOnCtgaWedE8U8jhmbI3FuAuJ/config

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

meta data:
-----------
    git_describe: next-20210908
    git_ref:
    git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
    git_sha: 999569d59a0aa2509ae4a67ecc266c1134e37e7b
    git_short_log: 999569d59a0a (\Add linux-next specific files for 20210908\)
    kconfig: [
        mini2440_defconfig
    ],
    target_arch: arm
    toolchain: clang-13

steps to reproduce:
https://builds.tuxbuild.com/1xqOnCtgaWedE8U8jhmbI3FuAuJ/tuxmake_reproducer.sh

--
Linaro LKFT
https://lkft.linaro.org