Hi Anshuman, Thank you for the patch! Yet something to improve: [auto build test ERROR on v5.17-rc1] [also build test ERROR on next-20220124] [cannot apply to hnaz-mm/master rostedt-trace/for-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Anshuman-Khandual/mm-migration-Add-trace-events/20220125-110944 base: e783362eb54cd99b2cac8b3a9aeac942e6f6ac07 config: hexagon-randconfig-r041-20220124 (https://download.01.org/0day-ci/archive/20220125/202201251747.ZSFwDZvC-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 997e128e2a78f5a5434fc75997441ae1ee76f8a4) 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 # https://github.com/0day-ci/linux/commit/f1100840c009fceb20d26ac4564c9d4c9c23c729 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Anshuman-Khandual/mm-migration-Add-trace-events/20220125-110944 git checkout f1100840c009fceb20d26ac4564c9d4c9c23c729 # 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=hexagon 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: __traceiter_set_migration_pte >>> referenced by rmap.c >>> rmap.o:(try_to_migrate_one) in archive mm/built-in.a >>> referenced by rmap.c >>> rmap.o:(try_to_migrate_one) in archive mm/built-in.a --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx