[asahilinux:bits/100-shutdown-notifier 4/21] 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/AsahiLinux/linux bits/100-shutdown-notifier
head:   0ade1bb4fabcb819cbee8750358d32dfee49c7c3
commit: ee5b82d202cf9b01a6e96c765f52710b74ba4739 [4/21] kernel: Add combined power-off+restart handler call chain API
config: x86_64-randconfig-a003-20220307 (https://download.01.org/0day-ci/archive/20220309/202203090241.r9sME55M-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/AsahiLinux/linux/commit/ee5b82d202cf9b01a6e96c765f52710b74ba4739
        git remote add asahilinux https://github.com/AsahiLinux/linux
        git fetch --no-tags asahilinux bits/100-shutdown-notifier
        git checkout ee5b82d202cf9b01a6e96c765f52710b74ba4739
        # 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