[kbuild-all] [mcgrof-next:20211117-sysctl-cleanups-all-set-04 21/36] ERROR: modpost: "register_sysctl_mount_point" [fs/binfmt_misc.ko] undefined!

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211117-sysctl-cleanups-all-set-04 head: 3559bb8939dd93c96215ab179d868c5fdc167335 commit: 2acfd364b61533c1fd9e7a9ebf90d63e80435ce4 [21/36] fs: move binfmt_misc sysctl to its own file config: um-i386_defconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/com... git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git git fetch --no-tags mcgrof-next 20211117-sysctl-cleanups-all-set-04 git checkout 2acfd364b61533c1fd9e7a9ebf90d63e80435ce4 # save the attached .config to linux build tree make W=1 ARCH=um SUBARCH=i386 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