Hi Krishna, kernel test robot noticed the following build errors: [auto build test ERROR on 2f87d0916ce0d2925cedbc9e8f5d6291ba2ac7b2] url: https://github.com/intel-lab-lkp/linux/commits/Krishna-chaitanya-chundru/arm64-dts-qcom-sc7280-Increase-config-size-to-256MB-for-ECAM-feature/20241121-095614 base: 2f87d0916ce0d2925cedbc9e8f5d6291ba2ac7b2 patch link: https://lore.kernel.org/r/20241117-ecam-v1-2-6059faf38d07%40quicinc.com patch subject: [PATCH 2/3] PCI: dwc: Add ECAM support with iATU configuration config: i386-buildonly-randconfig-005-20241121 (https://download.01.org/0day-ci/archive/20241121/202411212032.CbThzjSv-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/20241121/202411212032.CbThzjSv-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/202411212032.CbThzjSv-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: pci_generic_ecam_ops >>> referenced by pcie-designware-host.c >>> drivers/pci/controller/dwc/pcie-designware-host.o:(dw_pcie_host_init) in archive vmlinux.a >>> referenced by pcie-designware-host.c >>> drivers/pci/controller/dwc/pcie-designware-host.o:(dw_pcie_host_init) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: pci_ecam_create >>> referenced by pcie-designware-host.c >>> drivers/pci/controller/dwc/pcie-designware-host.o:(dw_pcie_host_init) in archive vmlinux.a -- >> ld.lld: error: undefined symbol: pci_ecam_free >>> referenced by pcie-designware-host.c >>> drivers/pci/controller/dwc/pcie-designware-host.o:(dw_pcie_host_init) in archive vmlinux.a >>> referenced by pcie-designware-host.c >>> drivers/pci/controller/dwc/pcie-designware-host.o:(dw_pcie_host_deinit) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki