Hi Achal, Thank you for the patch! Yet something to improve: [auto build test ERROR on helgaas-pci/next] [also build test ERROR on helgaas-pci/for-linus linus/master v6.2-rc1 next-20221226] [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/Achal-Verma/PCI-cadence-Add-support-to-build-pcie-cadence-library-as-module/20221227-184322 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next patch link: https://lore.kernel.org/r/20221227104154.1022426-3-a-verma1%40ti.com patch subject: [PATCH 2/2] PCI: j721e: Add support to build pci-j721e as module. config: parisc-randconfig-c032-20230101 compiler: hppa-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/1b17b61cd38cf9db5232cdaface5704dc90b9216 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Achal-Verma/PCI-cadence-Add-support-to-build-pcie-cadence-library-as-module/20221227-184322 git checkout 1b17b61cd38cf9db5232cdaface5704dc90b9216 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): >> hppa-linux-ld: drivers/pci/controller/cadence/pci-j721e.o:(.data+0x70): undefined reference to `cdns_pci_map_bus' hppa-linux-ld: drivers/pci/controller/cadence/pci-j721e.o: in function `.LC79': >> (.rodata.cst4+0x7c): undefined reference to `cdns_pcie_host_setup' -- 0-DAY CI Kernel Test Service https://01.org/lkp