Re: [PATCH v4 6/9] iio: imu: inv_icm45600: add I2C driver for inv_icm45600 driver
From: kernel test robot
Date: Fri Aug 15 2025 - 07:32:52 EST
Hi Remi,
kernel test robot noticed the following build warnings:
[auto build test WARNING on f8f559752d573a051a984adda8d2d1464f92f954]
url: https://github.com/intel-lab-lkp/linux/commits/Remi-Buisson-via-B4-Relay/dt-bindings-iio-imu-Add-inv_icm45600/20250814-170722
base: f8f559752d573a051a984adda8d2d1464f92f954
patch link: https://lore.kernel.org/r/20250814-add_newport_driver-v4-6-4464b6600972%40tdk.com
patch subject: [PATCH v4 6/9] iio: imu: inv_icm45600: add I2C driver for inv_icm45600 driver
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20250815/202508151941.BweGaEVT-lkp@xxxxxxxxx/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250815/202508151941.BweGaEVT-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508151941.BweGaEVT-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
>> drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:908:12: warning: result of comparison of constant 32768 with expression of type 's16' (aka 'short') is always false [-Wtautological-constant-out-of-range-compare]
908 | if (*temp == INV_ICM45600_DATA_INVALID)
| ~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:785:12: warning: unused function 'inv_icm45600_suspend' [-Wunused-function]
785 | static int inv_icm45600_suspend(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~
drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:820:12: warning: unused function 'inv_icm45600_resume' [-Wunused-function]
820 | static int inv_icm45600_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~
drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:860:12: warning: unused function 'inv_icm45600_runtime_suspend' [-Wunused-function]
860 | static int inv_icm45600_runtime_suspend(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:879:12: warning: unused function 'inv_icm45600_runtime_resume' [-Wunused-function]
879 | static int inv_icm45600_runtime_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
5 warnings generated.
vim +908 drivers/iio/imu/inv_icm45600/inv_icm45600_core.c
8891b99381240f Remi Buisson 2025-08-14 887
2570c7e48ace35 Remi Buisson 2025-08-14 888 static int _inv_icm45600_temp_read(struct inv_icm45600_state *st, s16 *temp)
2570c7e48ace35 Remi Buisson 2025-08-14 889 {
2570c7e48ace35 Remi Buisson 2025-08-14 890 struct inv_icm45600_sensor_conf conf = INV_ICM45600_SENSOR_CONF_KEEP_VALUES;
2570c7e48ace35 Remi Buisson 2025-08-14 891 int ret;
2570c7e48ace35 Remi Buisson 2025-08-14 892
2570c7e48ace35 Remi Buisson 2025-08-14 893 /* Make sure a sensor is on. */
2570c7e48ace35 Remi Buisson 2025-08-14 894 if (st->conf.gyro.mode == INV_ICM45600_SENSOR_MODE_OFF &&
2570c7e48ace35 Remi Buisson 2025-08-14 895 st->conf.accel.mode == INV_ICM45600_SENSOR_MODE_OFF) {
2570c7e48ace35 Remi Buisson 2025-08-14 896 conf.mode = INV_ICM45600_SENSOR_MODE_LOW_POWER;
2570c7e48ace35 Remi Buisson 2025-08-14 897 ret = inv_icm45600_set_accel_conf(st, &conf, NULL);
2570c7e48ace35 Remi Buisson 2025-08-14 898 if (ret)
2570c7e48ace35 Remi Buisson 2025-08-14 899 return ret;
2570c7e48ace35 Remi Buisson 2025-08-14 900 }
2570c7e48ace35 Remi Buisson 2025-08-14 901
2570c7e48ace35 Remi Buisson 2025-08-14 902 ret = regmap_bulk_read(st->map, INV_ICM45600_REG_TEMP_DATA,
2570c7e48ace35 Remi Buisson 2025-08-14 903 &st->buffer.u16, sizeof(st->buffer.u16));
2570c7e48ace35 Remi Buisson 2025-08-14 904 if (ret)
2570c7e48ace35 Remi Buisson 2025-08-14 905 return ret;
2570c7e48ace35 Remi Buisson 2025-08-14 906
2570c7e48ace35 Remi Buisson 2025-08-14 907 *temp = (s16)le16_to_cpup(&st->buffer.u16);
2570c7e48ace35 Remi Buisson 2025-08-14 @908 if (*temp == INV_ICM45600_DATA_INVALID)
2570c7e48ace35 Remi Buisson 2025-08-14 909 return -EINVAL;
2570c7e48ace35 Remi Buisson 2025-08-14 910
2570c7e48ace35 Remi Buisson 2025-08-14 911 return 0;
2570c7e48ace35 Remi Buisson 2025-08-14 912 }
2570c7e48ace35 Remi Buisson 2025-08-14 913
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki