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/daf840cab15926e075953cf836e... 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(a)intel.com&gt; All warnings (new ones prefixed by >>): 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 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@lists.01.org