[frank-w-bpi-r2-4.14:5.14-otg 8/29] drivers/soc/mediatek/mtk-pmic-wrap.c:2112:16: warning: no previous prototype for 'pwrap_node_to_regmap'

[kernel test robot <lkp@intel.com>]

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tree:   https://github.com/frank-w/BPI-R2-4.14 5.14-otg
head:   e365457a96cfe4f1f784f8ac48cfe2d0e92ac100
commit: daf840cab15926e075953cf836e903114868c074 [8/29] mt6625l: add changes outside driver dir
config: m68k-buildonly-randconfig-r001-20210822 (attached as .config)
compiler: m68k-linux-gcc (GCC) 11.2.0
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/frank-w/BPI-R2-4.14/commit/daf840cab15926e075953cf836e903114868c074
        git remote add frank-w-bpi-r2-4.14 https://github.com/frank-w/BPI-R2-4.14
        git fetch --no-tags frank-w-bpi-r2-4.14 5.14-otg
        git checkout daf840cab15926e075953cf836e903114868c074
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=m68k 

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

All warnings (new ones prefixed by >>):

>> drivers/soc/mediatek/mtk-pmic-wrap.c:2112:16: warning: no previous prototype for 'pwrap_node_to_regmap' [-Wmissing-prototypes]
    2112 | struct regmap *pwrap_node_to_regmap(struct device_node *np)
         |                ^~~~~~~~~~~~~~~~~~~~
   drivers/soc/mediatek/mtk-pmic-wrap.c:2072:34: warning: 'of_pwrap_match_tbl' defined but not used [-Wunused-const-variable=]
    2072 | static const struct of_device_id of_pwrap_match_tbl[] = {
         |                                  ^~~~~~~~~~~~~~~~~~
   drivers/soc/mediatek/mtk-pmic-wrap.c:1900:34: warning: 'of_slave_match_tbl' defined but not used [-Wunused-const-variable=]
    1900 | static const struct of_device_id of_slave_match_tbl[] = {
         |                                  ^~~~~~~~~~~~~~~~~~


vim +/pwrap_node_to_regmap +2112 drivers/soc/mediatek/mtk-pmic-wrap.c

  2111	
> 2112	struct regmap *pwrap_node_to_regmap(struct device_node *np)
  2113	{
  2114		struct platform_device *pdev;
  2115		struct pmic_wrapper *wrp;
  2116		pdev = of_find_device_by_node(np);
  2117		if (!pdev)
  2118			return ERR_PTR(-ENODEV);
  2119		wrp = platform_get_drvdata(pdev);
  2120		return wrp->regmap;
  2121	}
  2122	EXPORT_SYMBOL_GPL(pwrap_node_to_regmap);
  2123	

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

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