Hi Daniel, I love your patch! Yet something to improve: [auto build test ERROR on pm/linux-next] [also build test ERROR on linux/master linus/master v5.9-rc8 next-20201006] [cannot apply to asm-generic/master] [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/0day-ci/linux/commits/Daniel-Lezcano/powercap-dtpm-Add-the-DTPM-framework/20201006-202317 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: m68k-allmodconfig (attached as .config) compiler: m68k-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/0day-ci/linux/commit/a3c92086239fccbe4523d59537de2a4c805561d9 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Daniel-Lezcano/powercap-dtpm-Add-the-DTPM-framework/20201006-202317 git checkout a3c92086239fccbe4523d59537de2a4c805561d9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): m68k-linux-ld: drivers/powercap/dtpm.o: in function `__dtpm_rebalance_weight': >> dtpm.c:(.text+0x298): undefined reference to `__udivdi3' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org