[linux-next:master 9974/11482] mm/mmap.o: warning: objtool: mmap_region()+0xbea: unreachable instruction

CC: Linux Memory Management List <redacted>
TO: Luigi Rizzo <redacted>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <redacted>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   c1b13fe76e95c0f64c9dba9876dfbdb0bd862d99
commit: 78ed3bb6526904930fc6344dcb728f06b4091812 [9974/11482] mm/pagemap: add mmap_assert_locked() annotations to find_vma*()
config: x86_64-randconfig-a003-20210829 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4e1a164d7bd53653f79decc121afe784d2fde0a7)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=78ed3bb6526904930fc6344dcb728f06b4091812
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 78ed3bb6526904930fc6344dcb728f06b4091812
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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 <redacted>

All warnings (new ones prefixed by >>):

quoted

mm/mmap.o: warning: objtool: mmap_region()+0xbea: unreachable instruction

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