Re: [PATCH v8 8/9] mfd: smpro-mfd: Adds Ampere's Altra SMpro MFD driver

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Hi Quan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on groeck-staging/hwmon-next lee-mfd/for-mfd-next v5.18-rc3 next-20220422]
[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/intel-lab-lkp/linux/commits/Quan-Nguyen/Add-Ampere-s-Altra-SMPro-MFD-and-its-child-drivers/20220422-105732
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git c50c29a806113614098efd8da9fd7b48d605ba45
config: arm-randconfig-r004-20220422 (https://download.01.org/0day-ci/archive/20220423/202204230554.4528TqPu-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5bd87350a5ae429baf8f373cb226a57b62f87280)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/intel-lab-lkp/linux/commit/09ec873f0dd4611cb2df0150923d8906b9c5b2d1
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Quan-Nguyen/Add-Ampere-s-Altra-SMPro-MFD-and-its-child-drivers/20220422-105732
        git checkout 09ec873f0dd4611cb2df0150923d8906b9c5b2d1
        # 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=arm SHELL=/bin/bash arch/arm/mach-at91/ drivers/hwmon/

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

All warnings (new ones prefixed by >>):

>> drivers/hwmon/smpro-hwmon.c:376:3: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
                   default:
                   ^
   drivers/hwmon/smpro-hwmon.c:376:3: note: insert 'break;' to avoid fall-through
                   default:
                   ^
                   break; 
   1 warning generated.


vim +376 drivers/hwmon/smpro-hwmon.c

e1354080fc83378 Quan Nguyen 2022-04-22  359  
e1354080fc83378 Quan Nguyen 2022-04-22  360  static umode_t smpro_is_visible(const void *data, enum hwmon_sensor_types type,
e1354080fc83378 Quan Nguyen 2022-04-22  361  				u32 attr, int channel)
e1354080fc83378 Quan Nguyen 2022-04-22  362  {
e1354080fc83378 Quan Nguyen 2022-04-22  363  	const struct smpro_hwmon *hwmon = data;
e1354080fc83378 Quan Nguyen 2022-04-22  364  	unsigned int value;
e1354080fc83378 Quan Nguyen 2022-04-22  365  	int ret;
e1354080fc83378 Quan Nguyen 2022-04-22  366  
e1354080fc83378 Quan Nguyen 2022-04-22  367  	switch (type) {
e1354080fc83378 Quan Nguyen 2022-04-22  368  	case hwmon_temp:
e1354080fc83378 Quan Nguyen 2022-04-22  369  		switch (attr) {
e1354080fc83378 Quan Nguyen 2022-04-22  370  		case hwmon_temp_input:
e1354080fc83378 Quan Nguyen 2022-04-22  371  		case hwmon_temp_label:
e1354080fc83378 Quan Nguyen 2022-04-22  372  		case hwmon_temp_crit:
e1354080fc83378 Quan Nguyen 2022-04-22  373  			ret = regmap_read(hwmon->regmap, temperature[channel].reg, &value);
e1354080fc83378 Quan Nguyen 2022-04-22  374  			if (ret || value == 0xFFFF)
e1354080fc83378 Quan Nguyen 2022-04-22  375  				return 0;
e1354080fc83378 Quan Nguyen 2022-04-22 @376  		default:
e1354080fc83378 Quan Nguyen 2022-04-22  377  			break;
e1354080fc83378 Quan Nguyen 2022-04-22  378  		}
e1354080fc83378 Quan Nguyen 2022-04-22  379  		break;
e1354080fc83378 Quan Nguyen 2022-04-22  380  	default:
e1354080fc83378 Quan Nguyen 2022-04-22  381  		break;
e1354080fc83378 Quan Nguyen 2022-04-22  382  	}
e1354080fc83378 Quan Nguyen 2022-04-22  383  
e1354080fc83378 Quan Nguyen 2022-04-22  384  	return 0444;
e1354080fc83378 Quan Nguyen 2022-04-22  385  }
e1354080fc83378 Quan Nguyen 2022-04-22  386  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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