[mcgrof-next:20211129-sysctl-cleanups 6/26] ERROR: modpost: "register_sysctl_mount_point" [fs/binfmt_misc.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211129-sysctl-cleanups
head:   8f9490fc4fbbefd14e10ab51979a7b3adb7a4403
commit: e60f9391586d30ae0a867fb5663d462564ac54fa [6/26] fs: move binfmt_misc sysctl to its own file
config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20211204/202112040103.lehXOUmh-lkp@xxxxxxxxx/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/commit/?id=e60f9391586d30ae0a867fb5663d462564ac54fa
        git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git
        git fetch --no-tags mcgrof-next 20211129-sysctl-cleanups
        git checkout e60f9391586d30ae0a867fb5663d462564ac54fa
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 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 >>, old ones prefixed by <<):

>> ERROR: modpost: "register_sysctl_mount_point" [fs/binfmt_misc.ko] undefined!

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx