[ammarfaizi2-block:axboe/linux-block/m1-test 314/382] kernel/reboot.o: warning: objtool: sys_off_handler_power_off() falls through to next function register_power_off_handler()

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block axboe/linux-block/m1-test
head:   5adfbb595194191bad98c47447ddbee7d3b60b8f
commit: d4c326600862cf161d7cd7dbc0bbf7f8cb01b500 [314/382] kernel: Add combined power-off+restart handler call chain API
config: x86_64-randconfig-m001-20220214 (https://download.01.org/0day-ci/archive/20220216/202202161223.yfRXt35T-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/ammarfaizi2/linux-block/commit/d4c326600862cf161d7cd7dbc0bbf7f8cb01b500
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block axboe/linux-block/m1-test
        git checkout d4c326600862cf161d7cd7dbc0bbf7f8cb01b500
        # 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 warnings (new ones prefixed by >>):

>> kernel/reboot.o: warning: objtool: sys_off_handler_power_off() falls through to next function register_power_off_handler()

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