tree: https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git topic/renesas-debug head: 19a13e050f789ac7d98a4b3320a376f5052e84a0 commit: 60122e064f8d3029c65e430a9a4330a02f4b96e3 [11/20] [DEBUG] soc: renesas: r8a77965: MSTP debug handling config: arm64-randconfig-r034-20210112 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 32bcfcda4e28375e5a85268d2acfabcfcc011abf) 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://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?id=60122e064f8d3029c65e430a9a4330a02f4b96e3 git remote add renesas-drivers https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git git fetch --no-tags renesas-drivers topic/renesas-debug git checkout 60122e064f8d3029c65e430a9a4330a02f4b96e3 # 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: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/soc/renesas/r8a77965-mstp.c:608:13: warning: no previous prototype for function 'r8a77965_disable_mstp_clocks' [-Wmissing-prototypes] void __init r8a77965_disable_mstp_clocks(void) ^ drivers/soc/renesas/r8a77965-mstp.c:608:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init r8a77965_disable_mstp_clocks(void) ^ static 1 warning generated. /usr/bin/as: unrecognized option '-EB' clang-12: error: assembler command failed with exit code 1 (use -v to see invocation) vim +/r8a77965_disable_mstp_clocks +608 drivers/soc/renesas/r8a77965-mstp.c 607 > 608 void __init r8a77965_disable_mstp_clocks(void) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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