[kbuild-all] Re: [PATCH v10 03/13] media: amphion: add amphion vpu device driver

Hi Ming, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on 64cdf7e5a3aac0e7c9efdb079e74e22875b0419a] url: https://github.com/0day-ci/linux/commits/Ming-Qian/amphion-video-decoder-... base: 64cdf7e5a3aac0e7c9efdb079e74e22875b0419a config: arm64-randconfig-r015-20211014 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6c76d0101193aa4eb891a6954ff047eda2f9cf71) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/d009494a2472451fb05646fe6439d7918... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ming-Qian/amphion-video-decoder-encoder-driver/20211013-163124 git checkout d009494a2472451fb05646fe6439d7918790be2d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): int __init vpu_driver_init(void) ^ drivers/media/platform/amphion/vpu_drv.c:215:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __init vpu_driver_init(void) ^ static void __exit vpu_driver_exit(void) ^ drivers/media/platform/amphion/vpu_drv.c:226:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __exit vpu_driver_exit(void) ^ static 2 warnings generated. vim +/vpu_driver_init +215 drivers/media/platform/amphion/vpu_drv.c 214 216 { 217 int ret; 218 219 ret = platform_driver_register(&amphion_vpu_driver); 220 if (ret) 221 return ret; 222 223 return vpu_core_driver_init(); 224 } 225 227 { 228 vpu_core_driver_exit(); 229 platform_driver_unregister(&amphion_vpu_driver); 230 } 231 module_init(vpu_driver_init); 232 module_exit(vpu_driver_exit); 233 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org