Hi Yang, First bad commit (maybe != root cause): tree: https://github.com/tobetter/linux odroid-5.13.y head: 22ea299d9a6613bb35f4f0cf701f7d19bafd6858 commit: 17c87b76bcc70ff898f969c7b144ae3ab9b8269e [48/94] ODROID-XU4: drivers/fbtft: Add fb_hktft32 module for Hardkernel 3.2 inch TFT LCD config: arc-allyesconfig (attached as .config) compiler: arceb-elf-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/tobetter/linux/commit/17c87b76bcc70ff898f969c7b144ae3a... git remote add tobetter-linux https://github.com/tobetter/linux git fetch --no-tags tobetter-linux odroid-5.13.y git checkout 17c87b76bcc70ff898f969c7b144ae3ab9b8269e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): make[4]: Target '__build' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org