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Message-ID: <202408272315.6tUsOdsF-lkp@intel.com>
Date: Tue, 27 Aug 2024 23:22:21 +0800
From: kernel test robot <lkp@...el.com>
To: Andy Shevchenko <andy.shevchenko@...il.com>,
	Lorenzo Bianconi <lorenzo@...nel.org>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>
Subject: Re: [PATCH v1 2/2] iio: imu: st_lsm6dsx: Remove useless dev_fwnode()
 calls

Hi Andy,

kernel test robot noticed the following build warnings:

[auto build test WARNING on jic23-iio/togreg]
[also build test WARNING on linus/master v6.11-rc5 next-20240827]
[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/Andy-Shevchenko/iio-imu-st_lsm6dsx-Use-iio_read_acpi_mount_matrix-helper/20240827-052617
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link:    https://lore.kernel.org/r/20240826212344.866928-3-andy.shevchenko%40gmail.com
patch subject: [PATCH v1 2/2] iio: imu: st_lsm6dsx: Remove useless dev_fwnode() calls
config: arm64-randconfig-002-20240827 (https://download.01.org/0day-ci/archive/20240827/202408272315.6tUsOdsF-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240827/202408272315.6tUsOdsF-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408272315.6tUsOdsF-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c:2137:55: warning: incompatible integer to pointer conversion passing 'int' to parameter of type 'u32 *' (aka 'unsigned int *') [-Wint-conversion]
           if (device_property_read_u32(dev, "st,drdy-int-pin", drdy_pin) < 0) {
                                                                ^~~~~~~~
   include/linux/property.h:229:36: note: passing argument to parameter 'val' here
                                              const char *propname, u32 *val)
                                                                         ^
>> drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c:2137:55: warning: variable 'drdy_pin' is uninitialized when used here [-Wuninitialized]
           if (device_property_read_u32(dev, "st,drdy-int-pin", drdy_pin) < 0) {
                                                                ^~~~~~~~
   drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c:2135:23: note: initialize the variable 'drdy_pin' to silence this warning
           int err = 0, drdy_pin;
                                ^
                                 = 0
   2 warnings generated.


vim +2137 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c

  2129	
  2130	static int
  2131	st_lsm6dsx_get_drdy_reg(struct st_lsm6dsx_hw *hw,
  2132				const struct st_lsm6dsx_reg **drdy_reg)
  2133	{
  2134		struct device *dev = hw->dev;
  2135		int err = 0, drdy_pin;
  2136	
> 2137		if (device_property_read_u32(dev, "st,drdy-int-pin", drdy_pin) < 0) {
  2138			struct st_sensors_platform_data *pdata;
  2139	
  2140			pdata = (struct st_sensors_platform_data *)dev->platform_data;
  2141			drdy_pin = pdata ? pdata->drdy_int_pin : 1;
  2142		}
  2143	
  2144		switch (drdy_pin) {
  2145		case 1:
  2146			hw->irq_routing = &hw->settings->irq_config.irq1_func;
  2147			*drdy_reg = &hw->settings->irq_config.irq1;
  2148			break;
  2149		case 2:
  2150			hw->irq_routing = &hw->settings->irq_config.irq2_func;
  2151			*drdy_reg = &hw->settings->irq_config.irq2;
  2152			break;
  2153		default:
  2154			dev_err(hw->dev, "unsupported data ready pin\n");
  2155			err = -EINVAL;
  2156			break;
  2157		}
  2158	
  2159		return err;
  2160	}
  2161	

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

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