Hi Cai, I love your patch! Yet something to improve: [auto build test ERROR on drm/drm-next] [also build test ERROR on linus/master linux/master v5.18-rc4 next-20220422] [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/20220426-141148 base: git://anongit.freedesktop.org/drm/drm drm-next config: i386-randconfig-a003-20220425 (https://download.01.org/0day-ci/archive/20220426/202204261827.CMHZCsOI-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 1cddcfdc3c683b393df1a5c9063252eb60e52818) 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/a54587f7637b8ee11ad624794af3b409e6306e07 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/20220426-141148 git checkout a54587f7637b8ee11ad624794af3b409e6306e07 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 prepare If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> error: include/uapi/drm/nvdla_drm.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier make[2]: *** [scripts/Makefile.headersinst:63: usr/include/drm/nvdla_drm.h] Error 1 make[2]: Target '__headers' not remade because of errors. make[1]: *** [Makefile:1280: headers] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:219: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. -- 0-DAY CI Kernel Test Service https://01.org/lkp