tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 10207e3a840b47b5eae573486a88fb6e29884f77 commit: d096459494a88791312c6f4da4641eb887188e70 [2746/4656] net: lan966x: Add support for ptp clocks config: arm64-buildonly-randconfig-r005-20220209 (https://download.01.org/0day-ci/archive/20220210/202202100619.F4k1tPKf-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494) 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/next/linux-next.git/commit/?id=d096459494a88791312c6f4da4641eb887188e70 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout d096459494a88791312c6f4da4641eb887188e70 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: ptp_clock_register >>> referenced by lan966x_ptp.c >>> net/ethernet/microchip/lan966x/lan966x_ptp.o:(lan966x_ptp_init) in archive drivers/built-in.a -- >> ld.lld: error: undefined symbol: ptp_clock_unregister >>> referenced by lan966x_ptp.c >>> net/ethernet/microchip/lan966x/lan966x_ptp.o:(lan966x_ptp_deinit) in archive drivers/built-in.a --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
