Hi Satya, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on lee-mfd/for-mfd-next] [also build test WARNING on robh/for-next broonie-regulator/for-next v5.18-rc5 next-20220505] [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] url: https://github.com/intel-lab-lkp/linux/commits/Satya-Priya/Add-Qualcomm-Technologies-Inc-PM8008-regulator-driver/20220505-173045 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20220505/202205052333.90qqQnWQ-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 11.3.0 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/intel-lab-lkp/linux/commit/28e91eacf6442c72c4f1ca25e5ad90fedc73ab73 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Satya-Priya/Add-Qualcomm-Technologies-Inc-PM8008-regulator-driver/20220505-173045 git checkout 28e91eacf6442c72c4f1ca25e5ad90fedc73ab73 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/mfd/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/mfd/qcom-pm8008.c:154:16: warning: no previous prototype for 'pm8008_get_regmap' [-Wmissing-prototypes] 154 | struct regmap *pm8008_get_regmap(struct pm8008_data *chip) | ^~~~~~~~~~~~~~~~~ vim +/pm8008_get_regmap +154 drivers/mfd/qcom-pm8008.c 153 > 154 struct regmap *pm8008_get_regmap(struct pm8008_data *chip) 155 { 156 return chip->regulators_regmap; 157 } 158 -- 0-DAY CI Kernel Test Service https://01.org/lkp