Hi Yang, First bad commit (maybe != root cause): tree: https://github.com/tobetter/linux odroid-5.15.y head: 678861f23d9c5a26fb838c37ec2f4112749f6a17 commit: da67b773b1fcd150b4fce3af576ca96813cbf334 [28/76] ODROID-XU4: drivers/fbtft: Add fb_hktft32 module for Hardkernel 3.2 inch TFT LCD config: nios2-allmodconfig (attached as .config) compiler: nios2-linux-gcc (GCC) 11.2.0 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/da67b773b1fcd150b4fce3af576ca968... git remote add tobetter https://github.com/tobetter/linux git fetch --no-tags tobetter odroid-5.15.y git checkout da67b773b1fcd150b4fce3af576ca96813cbf334 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the tobetter/odroid-5.15.y HEAD 678861f23d9c5a26fb838c37ec2f4112749f6a17 builds fine. It only hurts bisectability. 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