Hi Manivannan, kernel test robot noticed the following build errors: [auto build test ERROR on 40384c840ea1944d7c5a392e8975ed088ecf0b37] url: https://github.com/intel-lab-lkp/linux/commits/Manivannan-Sadhasivam-via-B4-Relay/regulator-Guard-of_regulator_bulk_get_all-with-CONFIG_OF/20241231-174751 base: 40384c840ea1944d7c5a392e8975ed088ecf0b37 patch link: https://lore.kernel.org/r/20241231-pci-pwrctrl-slot-v2-6-6a15088ba541%40linaro.org patch subject: [PATCH v2 6/6] PCI/pwrctrl: Add pwrctrl driver for PCI Slots config: x86_64-randconfig-074-20250102 (https://download.01.org/0day-ci/archive/20250102/202501020407.HmQQQKa0-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/20250102/202501020407.HmQQQKa0-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/202501020407.HmQQQKa0-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/pci/pwrctrl/slot.c: In function 'pci_pwrctrl_slot_probe': >> drivers/pci/pwrctrl/slot.c:39:15: error: implicit declaration of function 'of_regulator_bulk_get_all'; did you mean 'regulator_bulk_get'? [-Werror=implicit-function-declaration] 39 | ret = of_regulator_bulk_get_all(dev, dev_of_node(dev), | ^~~~~~~~~~~~~~~~~~~~~~~~~ | regulator_bulk_get cc1: some warnings being treated as errors vim +39 drivers/pci/pwrctrl/slot.c 28 29 static int pci_pwrctrl_slot_probe(struct platform_device *pdev) 30 { 31 struct pci_pwrctrl_slot_data *slot; 32 struct device *dev = &pdev->dev; 33 int ret; 34 35 slot = devm_kzalloc(dev, sizeof(*slot), GFP_KERNEL); 36 if (!slot) 37 return -ENOMEM; 38 > 39 ret = of_regulator_bulk_get_all(dev, dev_of_node(dev), 40 &slot->supplies); 41 if (ret < 0) { 42 dev_err_probe(dev, ret, "Failed to get slot regulators\n"); 43 return ret; 44 } 45 46 slot->num_supplies = ret; 47 ret = regulator_bulk_enable(slot->num_supplies, slot->supplies); 48 if (ret < 0) { 49 dev_err_probe(dev, ret, "Failed to enable slot regulators\n"); 50 goto err_regulator_free; 51 } 52 53 ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_slot_power_off, 54 slot); 55 if (ret) 56 goto err_regulator_disable; 57 58 pci_pwrctrl_init(&slot->ctx, dev); 59 60 ret = devm_pci_pwrctrl_device_set_ready(dev, &slot->ctx); 61 if (ret) 62 return dev_err_probe(dev, ret, "Failed to register pwrctrl driver\n"); 63 64 return 0; 65 66 err_regulator_disable: 67 regulator_bulk_disable(slot->num_supplies, slot->supplies); 68 err_regulator_free: 69 regulator_bulk_free(slot->num_supplies, slot->supplies); 70 71 return ret; 72 } 73 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki