[kbuild-all] [rcu:dev.2020.09.10a 35/35] ERROR: modpost: "show_rcu_tasks_rude_gp_kthread" undefined!

tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.09.10a head: ccb38b2f3e160fbfecedbd0c80bde97a7dfcbdec commit: ccb38b2f3e160fbfecedbd0c80bde97a7dfcbdec [35/35] rcutorture: Make grace-period kthread report match RCU flavor being tested config: sh-randconfig-p001-20200916 (attached as .config) compiler: sh4-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 ccb38b2f3e160fbfecedbd0c80bde97a7dfcbdec # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh 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 >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org