Hi "Daniel, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on linuxtv-media/master] [also build test ERROR on next-20200519] [cannot apply to linus/master linux/master v5.7-rc6] [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/Daniel-W-S-Almeida/media-vidtv-i... base: git://linuxtv.org/media_tree.git master config: h8300-allyesconfig (attached as .config) compiler: h8300-linux-gcc (GCC) 9.3.0 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 COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): h8300-linux-ld: drivers/media/test-drivers/vidtv/vidtv_ts.o: in function `vidtv_ts_pcr_write_into': vidtv_ts.c:(.text+0x23d): undefined reference to `__umoddi3' h8300-linux-ld: drivers/media/test-drivers/vidtv/vidtv_s302m.o: in function `.L108': vidtv_s302m.c:(.text+0x7f9): undefined reference to `__udivdi3' h8300-linux-ld: drivers/media/test-drivers/vidtv/vidtv_mux.o: in function `.L55': vidtv_mux.c:(.text+0x8c5): undefined reference to `__udivdi3' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org