Hi Eason, kernel test robot noticed the following build warnings: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on linus/master v6.12-rc6 next-20241106] [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/Eason-Yang/dt-bindings-iio-adc-Add-binding-for-Nuvoton-NCT720x-ADCs/20241106-104046 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20241106023916.440767-3-j2anfernee%40gmail.com patch subject: [PATCH v1 2/2] iio: adc: add Nuvoton NCT720x ADC driver config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20241106/202411062051.TLRkJSSL-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241106/202411062051.TLRkJSSL-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/202411062051.TLRkJSSL-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/iio/adc/nct720x.c:9: In file included from include/linux/device.h:32: In file included from include/linux/device/driver.h:21: In file included from include/linux/module.h:19: In file included from include/linux/elf.h:6: In file included from arch/s390/include/asm/elf.h:181: In file included from arch/s390/include/asm/mmu_context.h:11: In file included from arch/s390/include/asm/pgalloc.h:18: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 505 | item]; | ~~~~ include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 512 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 525 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ >> drivers/iio/adc/nct720x.c:526:16: warning: cast to smaller integer type 'enum nct720x_chips' from 'const void *' [-Wvoid-pointer-to-enum-cast] 526 | chip->type = (enum nct720x_chips)device_get_match_data(&client->dev); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 5 warnings generated. vim +526 drivers/iio/adc/nct720x.c 511 512 static int nct720x_probe(struct i2c_client *client) 513 { 514 const struct i2c_device_id *id = i2c_client_get_device_id(client); 515 struct nct720x_chip_info *chip; 516 struct iio_dev *indio_dev; 517 int ret; 518 u32 tmp; 519 520 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip)); 521 if (!indio_dev) 522 return -ENOMEM; 523 chip = iio_priv(indio_dev); 524 525 if (client->dev.of_node) > 526 chip->type = (enum nct720x_chips)device_get_match_data(&client->dev); 527 else 528 chip->type = i2c_match_id(nct720x_id, client)->driver_data; 529 530 chip->vin_max = (chip->type == nct7201) ? NCT7201_VIN_MAX : NCT7202_VIN_MAX; 531 532 ret = of_property_read_u32(client->dev.of_node, "read-vin-data-size", &tmp); 533 if (ret < 0) { 534 pr_err("read-vin-data-size property not found\n"); 535 return ret; 536 } 537 538 if (tmp == 8) { 539 chip->use_read_byte_vin = true; 540 } else if (tmp == 16) { 541 chip->use_read_byte_vin = false; 542 } else { 543 pr_err("invalid read-vin-data-size (%d)\n", tmp); 544 return -EINVAL; 545 } 546 547 mutex_init(&chip->access_lock); 548 549 /* this is only used for device removal purposes */ 550 i2c_set_clientdata(client, indio_dev); 551 552 chip->client = client; 553 554 ret = nct720x_init_chip(chip); 555 if (ret < 0) 556 return ret; 557 558 indio_dev->name = id->name; 559 indio_dev->channels = nct720x_channels; 560 indio_dev->num_channels = ARRAY_SIZE(nct720x_channels); 561 indio_dev->info = &nct720x_info; 562 indio_dev->modes = INDIO_DIRECT_MODE; 563 564 iio_device_register(indio_dev); 565 566 return 0; 567 } 568 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
