Hi, I love your patch! Perhaps something to improve: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on linus/master v6.2 next-20230220] [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/marius-cristea-microchip-com/dt-bindings-iio-adc-adding-dt-bindings-for-PAC193X/20230220-203540 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20230220123232.413029-3-marius.cristea%40microchip.com patch subject: [PATCH v1 2/2] iio: adc: adding support for pac193x config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20230221/202302210551.5yGSdcbc-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 12.1.0 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 # https://github.com/intel-lab-lkp/linux/commit/fd3be916ffe18735a98bdc55ccc0cb5f3097582c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review marius-cristea-microchip-com/dt-bindings-iio-adc-adding-dt-bindings-for-PAC193X/20230220-203540 git checkout fd3be916ffe18735a98bdc55ccc0cb5f3097582c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash 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/202302210551.5yGSdcbc-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/iio/adc/pac193x.c: In function 'pac193x_acpi_get_acpi_match_entry': drivers/iio/adc/pac193x.c:1402:21: warning: variable 'status' set but not used [-Wunused-but-set-variable] 1402 | acpi_status status; | ^~~~~~ drivers/iio/adc/pac193x.c: In function 'pac193x_match_acpi_device': >> drivers/iio/adc/pac193x.c:1469:57: warning: '<<' in boolean context, did you mean '<'? [-Wint-in-bool-context] 1469 | chip_info->bi_dir[0] = (bi_dir_mask & (1 << 1)) << 1; | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/iio/adc/pac193x.c:1470:57: warning: '<<' in boolean context, did you mean '<'? [-Wint-in-bool-context] 1470 | chip_info->bi_dir[0] = (bi_dir_mask & (1 << 2)) << 2; | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/iio/adc/pac193x.c:1471:57: warning: '<<' in boolean context, did you mean '<'? [-Wint-in-bool-context] 1471 | chip_info->bi_dir[0] = (bi_dir_mask & (1 << 3)) << 3; | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ vim +1469 drivers/iio/adc/pac193x.c 1411 1412 static const char *pac193x_match_acpi_device(struct i2c_client *client, 1413 struct pac193x_chip_info *chip_info) 1414 { 1415 char *name; 1416 acpi_handle handle; 1417 union acpi_object *rez; 1418 unsigned short bi_dir_mask; 1419 int idx, i; 1420 1421 handle = ACPI_HANDLE(&client->dev); 1422 name = pac193x_acpi_get_acpi_match_entry(handle); 1423 if (!name) 1424 return NULL; 1425 1426 rez = pac193x_acpi_eval_function(handle, 0, PAC193X_ACPI_GET_NAMES_AND_MOHMS_VALS); 1427 1428 if (!rez) 1429 return NULL; 1430 1431 for (i = 0; i < rez->package.count; i += 2) { 1432 idx = i / 2; 1433 chip_info->channel_names[idx] = 1434 devm_kmemdup(&client->dev, rez->package.elements[i].string.pointer, 1435 (size_t)rez->package.elements[i].string.length + 1, 1436 GFP_KERNEL); 1437 chip_info->channel_names[idx][rez->package.elements[i].string.length] = '\0'; 1438 chip_info->shunts[idx] = 1439 rez->package.elements[i + 1].integer.value * 1000; 1440 chip_info->active_channels[idx] = (chip_info->shunts[idx] != 0); 1441 } 1442 1443 kfree(rez); 1444 1445 rez = pac193x_acpi_eval_function(handle, 1, PAC193X_ACPI_GET_UOHMS_VALS); 1446 if (!rez) { 1447 /* 1448 * initialising with default values 1449 * we assume all channels are unidectional(the mask is zero) 1450 * and assign the default sampling rate 1451 */ 1452 chip_info->sample_rate_value = PAC193X_DEFAULT_CHIP_SAMP_SPEED; 1453 return name; 1454 } 1455 1456 for (i = 0; i < rez->package.count; i++) { 1457 idx = i; 1458 chip_info->shunts[idx] = rez->package.elements[i].integer.value; 1459 chip_info->active_channels[idx] = (chip_info->shunts[idx] != 0); 1460 } 1461 1462 kfree(rez); 1463 1464 rez = pac193x_acpi_eval_function(handle, 1, PAC193X_ACPI_GET_BIPOLAR_SETTINGS); 1465 if (!rez) 1466 return NULL; 1467 bi_dir_mask = rez->package.elements[0].integer.value; 1468 chip_info->bi_dir[0] = (bi_dir_mask & (1 << 0)) << 0; > 1469 chip_info->bi_dir[0] = (bi_dir_mask & (1 << 1)) << 1; 1470 chip_info->bi_dir[0] = (bi_dir_mask & (1 << 2)) << 2; 1471 chip_info->bi_dir[0] = (bi_dir_mask & (1 << 3)) << 3; 1472 kfree(rez); 1473 1474 rez = pac193x_acpi_eval_function(handle, 1, PAC193X_ACPI_GET_SAMP); 1475 if (!rez) 1476 return NULL; 1477 1478 chip_info->sample_rate_value = rez->package.elements[0].integer.value; 1479 kfree(rez); 1480 1481 return name; 1482 } 1483 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests