[shenki:dev-6.1 86/92] drivers/hwmon/smpro-hwmon.c:378:2: warning: unannotated fall-through between switch labels

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/shenki/linux dev-6.1
head:   cac6306557586ba4479dab12c3e5efcb67e63388
commit: 046bbab2a36514056930c00f765e3f1719b5102a [86/92] hwmon: Add Ampere's Altra smpro-hwmon driver
config: i386-randconfig-a015-20230220 (https://download.01.org/0day-ci/archive/20230222/202302220154.EYch2RS3-lkp@intel.com/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/shenki/linux/commit/046bbab2a36514056930c00f765e3f1719b5102a
        git remote add shenki https://github.com/shenki/linux
        git fetch --no-tags shenki dev-6.1
        git checkout 046bbab2a36514056930c00f765e3f1719b5102a
        # 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@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302220154.EYch2RS3-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/hwmon/smpro-hwmon.c:378:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           default:
           ^
   drivers/hwmon/smpro-hwmon.c:378:2: note: insert 'break;' to avoid fall-through
           default:
           ^
           break; 
   1 warning generated.


vim +378 drivers/hwmon/smpro-hwmon.c

   359	
   360	static umode_t smpro_is_visible(const void *data, enum hwmon_sensor_types type,
   361					u32 attr, int channel)
   362	{
   363		const struct smpro_hwmon *hwmon = data;
   364		unsigned int value;
   365		int ret;
   366	
   367		switch (type) {
   368		case hwmon_temp:
   369			switch (attr) {
   370			case hwmon_temp_input:
   371			case hwmon_temp_label:
   372			case hwmon_temp_crit:
   373				ret = regmap_read(hwmon->regmap, temperature[channel].reg, &value);
   374				if (ret || value == 0xFFFF)
   375					return 0;
   376			break;
   377			}
 > 378		default:
   379			break;
   380		}
   381	
   382		return 0444;
   383	}
   384	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests