Hi Ayman,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3 next-20190918]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    
https://github.com/0day-ci/linux/commits/Ayman-Bagabas/platform-x86-Huawei-WMI-laptop-extras-driver/20190919-090022
config: x86_64-randconfig-s1-201937 (attached as .config)
compiler: gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <l...@intel.com>

All errors (new ones prefixed by >>):

   ld: drivers/platform/x86/asus-wmi.o: in function `asus_wmi_battery_init':
   drivers/platform/x86/asus-wmi.c:457: undefined reference to 
`battery_hook_register'
   ld: drivers/platform/x86/asus-wmi.o: in function `asus_wmi_battery_exit':
   drivers/platform/x86/asus-wmi.c:464: undefined reference to 
`battery_hook_unregister'
   ld: drivers/platform/x86/huawei-wmi.o: in function `huawei_wmi_battery_exit':
>> drivers/platform/x86/huawei-wmi.c:513: undefined reference to 
>> `battery_hook_unregister'
   ld: drivers/platform/x86/huawei-wmi.o: in function 
`huawei_wmi_battery_setup':
>> drivers/platform/x86/huawei-wmi.c:504: undefined reference to 
>> `battery_hook_register'

vim +513 drivers/platform/x86/huawei-wmi.c

   493  
   494  static void huawei_wmi_battery_setup(struct device *dev)
   495  {
   496          struct huawei_wmi *huawei = dev_get_drvdata(dev);
   497  
   498          huawei->battery_available = true;
   499          if (huawei_wmi_battery_get(NULL, NULL)) {
   500                  huawei->battery_available = false;
   501                  return;
   502          }
   503  
 > 504          battery_hook_register(&huawei_wmi_battery_hook);
   505          device_create_file(dev, &dev_attr_charge_control_thresholds);
   506  }
   507  
   508  static void huawei_wmi_battery_exit(struct device *dev)
   509  {
   510          struct huawei_wmi *huawei = dev_get_drvdata(dev);
   511  
   512          if (huawei->battery_available) {
 > 513                  battery_hook_unregister(&huawei_wmi_battery_hook);
   514                  device_remove_file(dev, 
&dev_attr_charge_control_thresholds);
   515          }
   516  }
   517  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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