Hi Sudeep, I love your patch! Perhaps something to improve: [auto build test WARNING on soc/for-next] [also build test WARNING on arm64/for-next/core linus/master v5.7-rc6 next-20200519] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Sudeep-Holla/firmware-smccc-Add-... base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next config: arm64-randconfig-r026-20200519 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 135b877874fae96b4372c8a3fbfaa8ff44ff86e3) reproduce: 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): void __init arm_smccc_version_init(u32 version, enum arm_smccc_conduit conduit) ^ drivers/firmware/smccc/smccc.c:14:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init arm_smccc_version_init(u32 version, enum arm_smccc_conduit conduit) ^ static 1 warning generated. vim +/arm_smccc_version_init +14 drivers/firmware/smccc/smccc.c 13 15 { 16 smccc_version = version; 17 smccc_conduit = conduit; 18 } 19 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org