Hi Marek, I love your patch! Perhaps something to improve: [auto build test WARNING on chanwoo-extcon/extcon-next] [also build test WARNING on linus/master v5.19-rc8 next-20220728] [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/Marek-Vasut/extcon-usbc-tusb320-Factor-out-extcon-into-dedicated-functions/20220731-020545 base: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git extcon-next config: x86_64-randconfig-a012 (https://download.01.org/0day-ci/archive/20220731/202207310431.Rtpq2bqx-lkp@xxxxxxxxx/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 52cd00cabf479aa7eb6dbb063b7ba41ea57bce9e) 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/7bce9c0377f5e41fa29f57af40f436a48e2260b1 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Marek-Vasut/extcon-usbc-tusb320-Factor-out-extcon-into-dedicated-functions/20220731-020545 git checkout 7bce9c0377f5e41fa29f57af40f436a48e2260b1 # 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=x86_64 SHELL=/bin/bash drivers/extcon/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/extcon/extcon-usbc-tusb320.c:19: warning: expecting prototype for drivers/extcon/extcon-tusb320.c(). Prototype was for TUSB320_REG8() instead vim +19 drivers/extcon/extcon-usbc-tusb320.c 18 > 19 #define TUSB320_REG8 0x8 20 #define TUSB320_REG8_CURRENT_MODE_ADVERTISE GENMASK(7, 6) 21 #define TUSB320_REG8_CURRENT_MODE_ADVERTISE_USB 0x0 22 #define TUSB320_REG8_CURRENT_MODE_ADVERTISE_15A 0x1 23 #define TUSB320_REG8_CURRENT_MODE_ADVERTISE_30A 0x2 24 #define TUSB320_REG8_CURRENT_MODE_DETECT GENMASK(5, 4) 25 #define TUSB320_REG8_CURRENT_MODE_DETECT_DEF 0x0 26 #define TUSB320_REG8_CURRENT_MODE_DETECT_MED 0x1 27 #define TUSB320_REG8_CURRENT_MODE_DETECT_ACC 0x2 28 #define TUSB320_REG8_CURRENT_MODE_DETECT_HI 0x3 29 #define TUSB320_REG8_ACCESSORY_CONNECTED GENMASK(3, 2) 30 #define TUSB320_REG8_ACCESSORY_CONNECTED_NONE 0x0 31 #define TUSB320_REG8_ACCESSORY_CONNECTED_AUDIO 0x4 32 #define TUSB320_REG8_ACCESSORY_CONNECTED_ACC 0x5 33 #define TUSB320_REG8_ACCESSORY_CONNECTED_DEBUG 0x6 34 #define TUSB320_REG8_ACTIVE_CABLE_DETECTION BIT(0) 35 -- 0-DAY CI Kernel Test Service https://01.org/lkp
