tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git modules/WIP head: 5d1d829c46e1fc74ab3cfbaec73ca14e2bbf3642 commit: 7e54f0ea9397718057e43653496fc89fd42b986e [21/22] ftrace: Merge ftrace_module_{init,enable}() config: parisc-allyesconfig (attached as .config) compiler: hppa-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 7e54f0ea9397718057e43653496fc89fd42b986e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc 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 >>): hppa-linux-ld: kernel/module.o: in function `__se_sys_delete_module': hppa-linux-ld: kernel/module.o: in function `do_init_module': (.text+0x4f18): undefined reference to `ftrace_module_release' hppa-linux-ld: kernel/module.o: in function `load_module': (.text+0x701c): 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