tree: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git watchdog-next head: 293903b9dfe43520f01374dc1661be11d6838c49 commit: 5ea29919c29413c984f4ba3e04a6679d306e7a6e [25/28] watchdog: da9063: use atomic safe i2c transfer in reset handler config: arm-randconfig-r014-20211128 (https://download.01.org/0day-ci/archive/20211129/202111292002.XQbF71R5-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project df08b2fe8b35cb63dfb3b49738a3494b9b4e6f8e) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git/commit/?id=5ea29919c29413c984f4ba3e04a6679d306e7a6e git remote add groeck-staging https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git git fetch --no-tags groeck-staging watchdog-next git checkout 5ea29919c29413c984f4ba3e04a6679d306e7a6e # 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=arm 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: i2c_smbus_write_byte_data >>> referenced by da9063_wdt.c >>> watchdog/da9063_wdt.o:(da9063_wdt_restart) in archive drivers/built-in.a --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
