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

[Naresh Kamboju]

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 at linaro.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