Hi Krishna, kernel test robot noticed the following build warnings: [auto build test WARNING on 81983758430957d9a5cb3333fe324fd70cf63e7e] url: https://github.com/intel-lab-lkp/linux/commits/Krishna-chaitanya-chundru/arm64-dts-qcom-x1e80100-Add-PCIe-lane-equalization-preset-properties/20241117-000950 base: 81983758430957d9a5cb3333fe324fd70cf63e7e patch link: https://lore.kernel.org/r/20241116-presets-v1-2-878a837a4fee%40quicinc.com patch subject: [PATCH 2/4] PCI: of: Add API to retrieve equalization presets from device tree config: i386-buildonly-randconfig-005-20241117 (https://download.01.org/0day-ci/archive/20241117/202411171316.4RG7T90F-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/20241117/202411171316.4RG7T90F-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/202411171316.4RG7T90F-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/pci/controller/dwc/pcie-designware.c:23: >> drivers/pci/controller/dwc/../../pci.h:803:12: warning: 'of_pci_get_equalization_presets' defined but not used [-Wunused-function] 803 | static int of_pci_get_equalization_presets(struct device *dev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/of_pci_get_equalization_presets +803 drivers/pci/controller/dwc/../../pci.h 802 > 803 static int of_pci_get_equalization_presets(struct device *dev, 804 struct pci_eq_presets *presets, 805 int num_lanes) 806 { 807 return 0; 808 } 809 #endif /* CONFIG_OF */ 810 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki