Re: [PATCH 3/4] ACPI: EC: Make query handlers private

[kernel test robot <lkp@xxxxxxxxx>]

Hi Armin,

I love your patch! Perhaps something to improve:

[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on linus/master v6.2 next-20230225]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Armin-Wolf/ACPI-EC-Add-query-notifier-support/20230225-160641
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/20230225080458.1342359-4-W_Armin%40gmx.de
patch subject: [PATCH 3/4] ACPI: EC: Make query handlers private
config: x86_64-randconfig-a001 (https://download.01.org/0day-ci/archive/20230225/202302251843.r0u8s41s-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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://github.com/intel-lab-lkp/linux/commit/a62cb9e29bf040af617070fa775758720d2de12e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Armin-Wolf/ACPI-EC-Add-query-notifier-support/20230225-160641
        git checkout a62cb9e29bf040af617070fa775758720d2de12e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/acpi/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302251843.r0u8s41s-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/acpi/ec.c:1083:5: warning: no previous prototype for function 'acpi_ec_add_query_handler' [-Wmissing-prototypes]
   int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, acpi_handle handle)
       ^
   drivers/acpi/ec.c:1083:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, acpi_handle handle)
   ^
   static 
   1 warning generated.


vim +/acpi_ec_add_query_handler +1083 drivers/acpi/ec.c

  1082	
> 1083	int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, acpi_handle handle)
  1084	{
  1085		struct acpi_ec_query_handler *handler =
  1086		    kzalloc(sizeof(struct acpi_ec_query_handler), GFP_KERNEL);
  1087	
  1088		if (!handler)
  1089			return -ENOMEM;
  1090	
  1091		handler->query_bit = query_bit;
  1092		handler->handle = handle;
  1093		mutex_lock(&ec->mutex);
  1094		kref_init(&handler->kref);
  1095		list_add(&handler->node, &ec->list);
  1096		mutex_unlock(&ec->mutex);
  1097		return 0;
  1098	}
  1099	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests