Hi Prathamesh, I love your patch! Perhaps something to improve: [auto build test WARNING on pinctrl/devel] [also build test WARNING on tegra/for-next v5.14 next-20210831] [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/0day-ci/linux/commits/Prathamesh-Shete/pinctrl-support-to-save-and-restore-GPIO-conf/20210831-133414 base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel config: s390-allmodconfig (attached as .config) compiler: s390-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/0day-ci/linux/commit/8c99cc4cd4b322e1a4dd6fb0e031a432ad768596 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Prathamesh-Shete/pinctrl-support-to-save-and-restore-GPIO-conf/20210831-133414 git checkout 8c99cc4cd4b322e1a4dd6fb0e031a432ad768596 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/pinctrl/core.c:36: >> drivers/pinctrl/pinmux.h:98:5: warning: no previous prototype for 'pinmux_gpio_save_config' [-Wmissing-prototypes] 98 | int pinmux_gpio_save_config(struct pinctrl_dev *pctldev, | ^~~~~~~~~~~~~~~~~~~~~~~ >> drivers/pinctrl/pinmux.h:104:5: warning: no previous prototype for 'pinmux_gpio_restore_config' [-Wmissing-prototypes] 104 | int pinmux_gpio_restore_config(struct pinctrl_dev *pctldev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/pinmux_gpio_save_config +98 drivers/pinctrl/pinmux.h 97 > 98 int pinmux_gpio_save_config(struct pinctrl_dev *pctldev, 99 struct pinctrl_gpio_range *range, 100 unsigned pin) 101 { 102 return 0; 103 } > 104 int pinmux_gpio_restore_config(struct pinctrl_dev *pctldev, 105 struct pinctrl_gpio_range *range, 106 unsigned pin) 107 { 108 return 0; 109 } 110 #endif 111 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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