Hi Yikai, kernel test robot noticed the following build warnings: [auto build test WARNING on groeck-staging/hwmon-next] [also build test WARNING on linus/master v6.11 next-20240926] [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/Yikai-Tsai/dt-bindings-hwmon-add-renesas-isl28022/20240925-111332 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next patch link: https://lore.kernel.org/r/20240925031131.14645-3-yikai.tsai.wiwynn%40gmail.com patch subject: [PATCH v7 2/2] hwmon: (isl28022) new driver for ISL28022 power monitor config: i386-randconfig-r133-20240927 (https://download.01.org/0day-ci/archive/20240927/202409271235.PtMXq9Kx-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240927/202409271235.PtMXq9Kx-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/202409271235.PtMXq9Kx-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/hwmon/isl28022.c:396:36: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int err @@ got char * @@ drivers/hwmon/isl28022.c:396:36: sparse: expected int err drivers/hwmon/isl28022.c:396:36: sparse: got char * >> drivers/hwmon/isl28022.c:396:88: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected char const *fmt @@ got unsigned int [addressable] [assigned] [usertype] val @@ drivers/hwmon/isl28022.c:396:88: sparse: expected char const *fmt drivers/hwmon/isl28022.c:396:88: sparse: got unsigned int [addressable] [assigned] [usertype] val drivers/hwmon/isl28022.c:406:36: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int err @@ got char * @@ drivers/hwmon/isl28022.c:406:36: sparse: expected int err drivers/hwmon/isl28022.c:406:36: sparse: got char * drivers/hwmon/isl28022.c:406:82: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected char const *fmt @@ got unsigned int [addressable] [assigned] [usertype] val @@ drivers/hwmon/isl28022.c:406:82: sparse: expected char const *fmt drivers/hwmon/isl28022.c:406:82: sparse: got unsigned int [addressable] [assigned] [usertype] val drivers/hwmon/isl28022.c:414:28: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int err @@ got char * @@ drivers/hwmon/isl28022.c:414:28: sparse: expected int err drivers/hwmon/isl28022.c:414:28: sparse: got char * >> drivers/hwmon/isl28022.c:414:87: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected char const *fmt @@ got unsigned int [usertype] shunt @@ drivers/hwmon/isl28022.c:414:87: sparse: expected char const *fmt drivers/hwmon/isl28022.c:414:87: sparse: got unsigned int [usertype] shunt drivers/hwmon/isl28022.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/xarray.h, ...): include/linux/page-flags.h:235:46: sparse: sparse: self-comparison always evaluates to false include/linux/page-flags.h:235:46: sparse: sparse: self-comparison always evaluates to false vim +396 drivers/hwmon/isl28022.c 346 347 /* 348 * read property values and make consistency checks. 349 * 350 * following values for shunt range and resistor are allowed: 351 * 40 mV -> gain 1, shunt min. 800 micro ohms 352 * 80 mV -> gain 2, shunt min. 1600 micro ohms 353 * 160 mV -> gain 4, shunt min. 3200 micro ohms 354 * 320 mV -> gain 8, shunt min. 6400 micro ohms 355 */ 356 static int isl28022_read_properties(struct device *dev, struct isl28022_data *data) 357 { 358 u32 val; 359 int err; 360 361 err = device_property_read_u32(dev, "shunt-resistor-micro-ohms", &val); 362 if (err == -EINVAL) 363 val = 10000; 364 else if (err < 0) 365 return err; 366 data->shunt = val; 367 368 err = device_property_read_u32(dev, "renesas,shunt-range-microvolt", &val); 369 if (err == -EINVAL) 370 val = 320000; 371 else if (err < 0) 372 return err; 373 374 switch (val) { 375 case 40000: 376 data->gain = 1; 377 if (data->shunt < 800) 378 goto shunt_invalid; 379 break; 380 case 80000: 381 data->gain = 2; 382 if (data->shunt < 1600) 383 goto shunt_invalid; 384 break; 385 case 160000: 386 data->gain = 4; 387 if (data->shunt < 3200) 388 goto shunt_invalid; 389 break; 390 case 320000: 391 data->gain = 8; 392 if (data->shunt < 6400) 393 goto shunt_invalid; 394 break; 395 default: > 396 dev_err_probe(dev, "renesas,shunt-range-microvolt invalid value %d\n", val); 397 return -EINVAL; 398 } 399 400 err = device_property_read_u32(dev, "renesas,average-samples", &val); 401 if (err == -EINVAL) 402 val = 1; 403 else if (err < 0) 404 return err; 405 if (val > 128 || hweight32(val) != 1) { > 406 dev_err_probe(dev, "renesas,average-samples invalid value %d\n", val); 407 return -EINVAL; 408 } 409 data->average = val; 410 411 return 0; 412 413 shunt_invalid: > 414 dev_err_probe(dev, "renesas,shunt-resistor-microvolt invalid value %d\n", data->shunt); 415 return -EINVAL; 416 } 417 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki