[pdx86-platform-drivers-x86:review-hans 40/40] ERROR: modpost: "battery_hook_register" [drivers/platform/x86/lg-laptop.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git review-hans
head:   7e45710a8a56896d7af5c5ff4ed7cfb18573791b
commit: 7e45710a8a56896d7af5c5ff4ed7cfb18573791b [40/40] lg-laptop: Move setting of battery charge limit to common location
config: x86_64-randconfig-r035-20220221 (https://download.01.org/0day-ci/archive/20220223/202202231609.ZQpgFUIn-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/pdx86/platform-drivers-x86.git/commit/?id=7e45710a8a56896d7af5c5ff4ed7cfb18573791b
        git remote add pdx86-platform-drivers-x86 https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
        git fetch --no-tags pdx86-platform-drivers-x86 review-hans
        git checkout 7e45710a8a56896d7af5c5ff4ed7cfb18573791b
        # 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: "battery_hook_register" [drivers/platform/x86/lg-laptop.ko] undefined!
>> ERROR: modpost: "battery_hook_unregister" [drivers/platform/x86/lg-laptop.ko] undefined!

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