[linusw-nomadik:ux500-href-charging-v5.16-rc1-prim 35/35] drivers/power/supply/samsung-sdi-battery.c:55:5: warning: no previous prototype for function 'samsung_sdi_battery_get_info'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ux500-href-charging-v5.16-rc1-prim
head:   86b93a3192d2eb04134708293a8274948d210db4
commit: 86b93a3192d2eb04134708293a8274948d210db4 [35/35] samsung hack
config: riscv-randconfig-r026-20211214 (https://download.01.org/0day-ci/archive/20211215/202112150222.sFmcltTF-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c)
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
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git/commit/?id=86b93a3192d2eb04134708293a8274948d210db4
        git remote add linusw-nomadik https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
        git fetch --no-tags linusw-nomadik ux500-href-charging-v5.16-rc1-prim
        git checkout 86b93a3192d2eb04134708293a8274948d210db4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/misc/ drivers/perf/ drivers/power/supply/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

>> drivers/power/supply/samsung-sdi-battery.c:55:5: warning: no previous prototype for function 'samsung_sdi_battery_get_info' [-Wmissing-prototypes]
   int samsung_sdi_battery_get_info(struct power_supply_battery_info **info,
       ^
   drivers/power/supply/samsung-sdi-battery.c:55:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int samsung_sdi_battery_get_info(struct power_supply_battery_info **info,
   ^
   static 
   drivers/power/supply/samsung-sdi-battery.c:71:1: error: non-void function does not return a value in all control paths [-Werror,-Wreturn-type]
   }
   ^
   1 warning and 1 error generated.


vim +/samsung_sdi_battery_get_info +55 drivers/power/supply/samsung-sdi-battery.c

    54	
  > 55	int samsung_sdi_battery_get_info(struct power_supply_battery_info **info,

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