tree: https://github.com/weiny2/linux-kernel.git lm-kmap6 head: d6a1efbb8363027c16660ab5b8f7a96a7f63211e commit: bfa271fa26042a21f4e3aa0f51af42dbcf288fed [8/9] arch/kmap: Define kmap_atomic_prot() for all arch's config: sparc-defconfig (attached as .config) compiler: sparc-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 git checkout bfa271fa26042a21f4e3aa0f51af42dbcf288fed # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=sparc :::::: branch date: 4 hours ago :::::: commit date: 4 hours ago 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 >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org