Hi Naresh, kernel test robot noticed the following build warnings: [auto build test WARNING on b4c288cfd2f84c44994330c408e14645d45dee5b] url: https://github.com/intel-lab-lkp/linux/commits/Naresh-Solanki/hwmon-max597x-Add-Maxim-Max597x/20230426-170556 base: b4c288cfd2f84c44994330c408e14645d45dee5b patch link: https://lore.kernel.org/r/20230426090356.745979-1-Naresh.Solanki%409elements.com patch subject: [PATCH] hwmon: (max597x) Add Maxim Max597x config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20230503/202305031640.SL6o9vFH-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/3d6f729d86a79adf0603717c79bc389a5dcc4444 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Naresh-Solanki/hwmon-max597x-Add-Maxim-Max597x/20230426-170556 git checkout 3d6f729d86a79adf0603717c79bc389a5dcc4444 # 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/hwmon/ 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/202305031640.SL6o9vFH-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/hwmon/max597x.c:47:10: warning: 9 enumeration values not handled in switch: 'hwmon_chip', 'hwmon_temp', 'hwmon_power'... [-Wswitch] switch (type) { ^~~~ 1 warning generated. vim +47 drivers/hwmon/max597x.c 40 41 static int max597x_read(struct device *dev, enum hwmon_sensor_types type, 42 u32 attr, int channel, long *val) 43 { 44 struct max597x_hwmon *ddata = dev_get_drvdata(dev); 45 int ret; 46 > 47 switch (type) { 48 case hwmon_curr: 49 switch (attr) { 50 case hwmon_curr_input: 51 ret = max597x_read_reg(ddata, MAX5970_REG_CURRENT_H(channel), 52 ddata->irng[channel], val); 53 if (ret < 0) 54 return ret; 55 56 return 0; 57 default: 58 return -EOPNOTSUPP; 59 } 60 61 case hwmon_in: 62 switch (attr) { 63 case hwmon_in_input: 64 ret = max597x_read_reg(ddata, MAX5970_REG_VOLTAGE_H(channel), 65 ddata->mon_rng[channel], val); 66 if (ret < 0) 67 return ret; 68 return 0; 69 default: 70 return -EOPNOTSUPP; 71 } 72 } 73 return -EOPNOTSUPP; 74 } 75 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests