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@xxxxxxxxxx> 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
