tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git master head: 7e76c3ae7ad71cb092eaff7dc887036922b89bb5 commit: f401facc329c0e823ea71eeb2c2f29bfd4cf6adf [9/12] Merge branch 'modules/WIP' config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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 git checkout f401facc329c0e823ea71eeb2c2f29bfd4cf6adf # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): aarch64-linux-ld: kernel/module.o: in function `__arm64_sys_delete_module': (.text+0x7aec): undefined reference to `ftrace_module_release' aarch64-linux-ld: kernel/module.o: in function `do_init_module': aarch64-linux-ld: kernel/module.o: in function `load_module': module.c:(.text+0xb284): undefined reference to `ftrace_module_release' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org