Hi Frieder, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on broonie-regulator/for-next] [also build test WARNING on shawnguo/for-next arm/for-next arm/fixes arm64/for-next/core kvmarm/next rockchip/for-next soc/for-next xilinx-xlnx/master linus/master v6.2-rc8 next-20230214] [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/Frieder-Schrempf/dt-bindings-regulator-pca9450-Document-new-usage-of-sd-vsel-gpios/20230214-013045 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next patch link: https://lore.kernel.org/r/20230213155833.1644366-5-frieder%40fris.de patch subject: [PATCH 4/6] regulator: Add operation to let drivers select vsel register config: i386-randconfig-a003-20230213 (https://download.01.org/0day-ci/archive/20230214/202302141754.N3CvO9lF-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/b76ab45ee4b60334c27d870b6d744a937ff94636 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Frieder-Schrempf/dt-bindings-regulator-pca9450-Document-new-usage-of-sd-vsel-gpios/20230214-013045 git checkout b76ab45ee4b60334c27d870b6d744a937ff94636 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/regulator/ 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/202302141754.N3CvO9lF-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/regulator/helpers.c:226:14: warning: no previous prototype for function 'regulator_get_hwreg_voltage_sel_regmap' [-Wmissing-prototypes] unsigned int regulator_get_hwreg_voltage_sel_regmap(struct regulator_dev *rdev) ^ drivers/regulator/helpers.c:226:1: note: declare 'static' if the function is not intended to be used outside of this translation unit unsigned int regulator_get_hwreg_voltage_sel_regmap(struct regulator_dev *rdev) ^ static 1 warning generated. vim +/regulator_get_hwreg_voltage_sel_regmap +226 drivers/regulator/helpers.c 225 > 226 unsigned int regulator_get_hwreg_voltage_sel_regmap(struct regulator_dev *rdev) 227 { 228 const struct regulator_ops *ops = rdev->desc->ops; 229 230 if (ops->get_reg_voltage_sel) 231 return ops->get_reg_voltage_sel(rdev); 232 233 return rdev->desc->vsel_reg; 234 } 235 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
