Hi Frank, kernel test robot noticed the following build warnings: [auto build test WARNING on jic23-iio/togreg] [also build test WARNING on next-20241105] [cannot apply to linus/master v6.12-rc6] [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/Frank-Li/iio-adc-vf610_adc-limit-i-MX6SX-s-channel-number-to-4/20241105-071339 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20241104231200.2745342-2-Frank.Li%40nxp.com patch subject: [PATCH 2/2] iio: adc: vf610_adc: limit i.MX6SX's channel number to 4 config: x86_64-buildonly-randconfig-005-20241105 (https://download.01.org/0day-ci/archive/20241105/202411052345.gyJaM3h4-lkp@xxxxxxxxx/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241105/202411052345.gyJaM3h4-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/202411052345.gyJaM3h4-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/iio/adc/vf610_adc.c:20: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:21: In file included from include/linux/mm.h:2213: 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_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/iio/adc/vf610_adc.c:874:28: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'const void *' [-Wvoid-pointer-to-int-cast] 874 | indio_dev->num_channels = (u32)device_get_match_data(dev); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated. vim +874 drivers/iio/adc/vf610_adc.c 817 818 static int vf610_adc_probe(struct platform_device *pdev) 819 { 820 struct device *dev = &pdev->dev; 821 struct vf610_adc *info; 822 struct iio_dev *indio_dev; 823 int irq; 824 int ret; 825 826 indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(struct vf610_adc)); 827 if (!indio_dev) 828 return dev_err_probe(&pdev->dev, -ENOMEM, "Failed allocating iio device\n"); 829 830 info = iio_priv(indio_dev); 831 info->dev = &pdev->dev; 832 833 info->regs = devm_platform_ioremap_resource(pdev, 0); 834 if (IS_ERR(info->regs)) 835 return PTR_ERR(info->regs); 836 837 irq = platform_get_irq(pdev, 0); 838 if (irq < 0) 839 return irq; 840 841 ret = devm_request_irq(info->dev, irq, 842 vf610_adc_isr, 0, 843 dev_name(&pdev->dev), indio_dev); 844 if (ret < 0) 845 dev_err_probe(&pdev->dev, ret, "failed requesting irq, irq = %d\n", irq); 846 847 info->clk = devm_clk_get_enabled(&pdev->dev, "adc"); 848 if (IS_ERR(info->clk)) 849 return dev_err_probe(&pdev->dev, PTR_ERR(info->clk), 850 "failed getting clock, err = %ld\n", 851 PTR_ERR(info->clk)); 852 853 info->vref = devm_regulator_get(&pdev->dev, "vref"); 854 if (IS_ERR(info->vref)) 855 return PTR_ERR(info->vref); 856 857 info->vref_uv = devm_regulator_get_enable_read_voltage(&pdev->dev, "vref"); 858 if (info->vref_uv < 0) 859 return info->vref_uv; 860 861 device_property_read_u32_array(dev, "fsl,adck-max-frequency", info->max_adck_rate, 3); 862 863 info->adc_feature.default_sample_time = DEFAULT_SAMPLE_TIME; 864 device_property_read_u32(dev, "min-sample-time", &info->adc_feature.default_sample_time); 865 866 platform_set_drvdata(pdev, indio_dev); 867 868 init_completion(&info->completion); 869 870 indio_dev->name = dev_name(&pdev->dev); 871 indio_dev->info = &vf610_adc_iio_info; 872 indio_dev->modes = INDIO_DIRECT_MODE; 873 indio_dev->channels = vf610_adc_iio_channels; > 874 indio_dev->num_channels = (u32)device_get_match_data(dev); 875 876 vf610_adc_cfg_init(info); 877 vf610_adc_hw_init(info); 878 879 ret = devm_iio_triggered_buffer_setup(&pdev->dev, indio_dev, &iio_pollfunc_store_time, 880 NULL, &iio_triggered_buffer_setup_ops); 881 if (ret < 0) 882 return dev_err_probe(&pdev->dev, ret, "Couldn't initialise the buffer\n"); 883 884 mutex_init(&info->lock); 885 886 ret = devm_iio_device_register(&pdev->dev, indio_dev); 887 if (ret) 888 return dev_err_probe(&pdev->dev, ret, "Couldn't register the device.\n"); 889 890 return 0; 891 } 892 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
