Re: [PATCH v2 2/2] hwmon: (adt7475) Convert to use device_property APIs

From: kernel test robot
Date: Fri Apr 21 2023 - 02:16:51 EST


Hi Chris,

kernel test robot noticed the following build warnings:

[auto build test WARNING on groeck-staging/hwmon-next]
[also build test WARNING on linus/master v6.3-rc7]
[cannot apply to next-20230420]
[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#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Chris-Packham/hwmon-adt7475-Use-device_property-APIs-when-configuring-polarity/20230419-074117
base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
patch link: https://lore.kernel.org/r/20230418233656.869055-3-chris.packham%40alliedtelesis.co.nz
patch subject: [PATCH v2 2/2] hwmon: (adt7475) Convert to use device_property APIs
config: i386-randconfig-s002-20230417 (https://download.01.org/0day-ci/archive/20230421/202304211315.wHZGWO8S-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/intel-lab-lkp/linux/commit/59836340c66130951595e2adebf284eca3063ccd
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Chris-Packham/hwmon-adt7475-Use-device_property-APIs-when-configuring-polarity/20230419-074117
git checkout 59836340c66130951595e2adebf284eca3063ccd
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 olddefconfig
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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/202304211315.wHZGWO8S-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/hwmon/adt7475.c:1471:44: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected struct device *dev @@ got struct device const * @@
drivers/hwmon/adt7475.c:1471:44: sparse: expected struct device *dev
drivers/hwmon/adt7475.c:1471:44: sparse: got struct device const *
drivers/hwmon/adt7475.c:1497:44: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected struct device *dev @@ got struct device const * @@
drivers/hwmon/adt7475.c:1497:44: sparse: expected struct device *dev
drivers/hwmon/adt7475.c:1497:44: sparse: got struct device const *
drivers/hwmon/adt7475.c:1559:45: sparse: sparse: incorrect type in argument 1 (different modifiers) @@ expected struct device *dev @@ got struct device const * @@
drivers/hwmon/adt7475.c:1559:45: sparse: expected struct device *dev
drivers/hwmon/adt7475.c:1559:45: sparse: got struct device const *

vim +1471 drivers/hwmon/adt7475.c

1464
1465 static int load_config3(const struct i2c_client *client, const char *propname)
1466 {
1467 const char *function;
1468 u8 config3;
1469 int ret;
1470
> 1471 ret = device_property_read_string(&client->dev, propname, &function);
1472 if (!ret) {
1473 ret = adt7475_read(REG_CONFIG3);
1474 if (ret < 0)
1475 return ret;
1476
1477 config3 = ret & ~CONFIG3_SMBALERT;
1478 if (!strcmp("pwm2", function))
1479 ;
1480 else if (!strcmp("smbalert#", function))
1481 config3 |= CONFIG3_SMBALERT;
1482 else
1483 return -EINVAL;
1484
1485 return i2c_smbus_write_byte_data(client, REG_CONFIG3, config3);
1486 }
1487
1488 return 0;
1489 }
1490

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