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Subject[krzk-github:n/devfreq-exynos-ppmu-node-names 2895/2969] drivers/hwmon/max6620.c:236:2: warning: unannotated fall-through between switch labels
tree:   https://github.com/krzk/linux n/devfreq-exynos-ppmu-node-names
head: 6ebcb485d3543204ba45a4158eabcc51e966e464
commit: 8c1b0feea4fecc11f2dd2fa37481fc63562a2cb6 [2895/2969] Merge branch 'hwmon-next' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
config: i386-randconfig-a016-20210929 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dc6e8dfdfe7efecfda318d43a06fae18b40eb498)
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/krzk/linux/commit/8c1b0feea4fecc11f2dd2fa37481fc63562a2cb6
git remote add krzk-github https://github.com/krzk/linux
git fetch --no-tags krzk-github n/devfreq-exynos-ppmu-node-names
git checkout 8c1b0feea4fecc11f2dd2fa37481fc63562a2cb6
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=i386

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/hwmon/max6620.c:236:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
default:
^
drivers/hwmon/max6620.c:236:2: note: insert 'break;' to avoid fall-through
default:
^
break;
1 warning generated.


vim +236 drivers/hwmon/max6620.c

a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 218
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 219 static umode_t
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 220 max6620_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr,
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 221 int channel)
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 222 {
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 223 switch (type) {
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 224 case hwmon_fan:
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 225 switch (attr) {
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 226 case hwmon_fan_alarm:
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 227 case hwmon_fan_input:
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 228 return 0444;
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 229 case hwmon_fan_div:
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 230 case hwmon_fan_target:
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 231 return 0644;
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 232 default:
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 233 break;
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 234 }
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 235
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 @236 default:
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 237 break;
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 238 }
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 239
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 240 return 0;
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 241 }
a2ff27ef3c770c Arun Saravanan Balachandran 2021-09-13 242

:::::: The code at line 236 was first introduced by commit
:::::: a2ff27ef3c770c2d86ca8e5160b9aff08323be1a hwmon: Add Maxim MAX6620 hardware monitoring driver

:::::: TO: Arun Saravanan Balachandran <Arun_Saravanan_Balac@dell.com>
:::::: CC: Guenter Roeck <linux@roeck-us.net>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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