Hi Cai, I love your patch! Yet something to improve: [auto build test ERROR on drm/drm-next] [also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip linus/master v5.18-rc3 next-20220419] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/Cai-Huoqing/drm-nvdla-Add-driver-support-for-NVDLA/20220419-220255 base: git://anongit.freedesktop.org/drm/drm drm-next config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20220420/202204201710.5Gcg1PUu-lkp@xxxxxxxxx/config) compiler: m68k-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/intel-lab-lkp/linux/commit/7539e5487eb7d0c6f13c03bba596e51a2238106d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Cai-Huoqing/drm-nvdla-Add-driver-support-for-NVDLA/20220419-220255 git checkout 7539e5487eb7d0c6f13c03bba596e51a2238106d # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/gpu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> make[5]: *** No rule to make target 'drivers/gpu/drm/nvdla/nvdla_engine_data.o', needed by 'drivers/gpu/drm/nvdla/nvdla-drm.o'. >> make[5]: *** No rule to make target 'drivers/gpu/drm/nvdla/nvdla_engine_debug.o', needed by 'drivers/gpu/drm/nvdla/nvdla-drm.o'. make[5]: Target '__build' not remade because of errors. -- 0-DAY CI Kernel Test Service https://01.org/lkp