Hi Luigi, Thank you for the patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on linus/master v5.6-rc5 next-20200310] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Luigi-Rizzo/kstats-kernel-metric-collector/20200227-022930 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f5ae2ea6347a308cfe91f53b53682ce635497d0d config: m68k-allyesconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): m68k-linux-ld: lib/kstats.o: in function `ks_show_entry': kstats.c:(.text+0x482): undefined reference to `__udivdi3' >> m68k-linux-ld: kstats.c:(.text+0x522): undefined reference to `__umoddi3' m68k-linux-ld: kstats.c:(.text+0x5ac): undefined reference to `__umoddi3' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org