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

kernel test robot
2022-04-22T22:25:53Z

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@intel.com/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@intel.com>

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

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