tree: https://github.com/congwang/linux.git sockmap3 head: 16a132a3d687afd78de6ebd70fc641dcd72b82a6 commit: e73442c6fac419ca27e9235dc61de78b5c1964ff [2/10] af_unix: implement ->psock_update_sk_prot() config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/congwang/linux/commit/e73442c6fac419ca27e9235dc61de78b... git remote add congwang https://github.com/congwang/linux.git git fetch --no-tags congwang sockmap3 git checkout e73442c6fac419ca27e9235dc61de78b5c1964ff # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): ERROR: modpost: "remap_vmalloc_range_partial" [samples/vfio-mdev/mdpy.ko] undefined! ERROR: modpost: "__delay" [drivers/net/mdio/mdio-cavium.ko] undefined! ERROR: modpost: "__udivdi3" [fs/btrfs/btrfs.ko] undefined! ERROR: modpost: "__umoddi3" [fs/btrfs/btrfs.ko] undefined! Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_PDC Depends on SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && HAS_DMA Selected by - SND_ATMEL_SOC_SSC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC - SND_ATMEL_SOC_SSC_PDC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && ATMEL_SSC --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org