Hi Masahiro, I love your patch! Yet something to improve: [auto build test ERROR on masahiroy-kbuild/for-next] [also build test ERROR on linux/master linus/master v5.18-rc7 next-20220513] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/Masahiro-Yamada/kbuild-move-scripts-mod-build-to-modules_prepare/20220514-120519 base: https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git for-next config: s390-randconfig-m031-20220514 (https://download.01.org/0day-ci/archive/20220516/202205161340.DscM2Rht-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 11.3.0 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/intel-lab-lkp/linux/commit/e538a965b373cb35813fd55f75b7646c4fb92a8d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Masahiro-Yamada/kbuild-move-scripts-mod-build-to-modules_prepare/20220514-120519 git checkout e538a965b373cb35813fd55f75b7646c4fb92a8d # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>, old ones prefixed by <<): >> /bin/bash: line 1: scripts/mod/modpost: No such file or directory -- 0-DAY CI Kernel Test Service https://01.org/lkp