Hi George, I love your patch! Yet something to improve: [auto build test ERROR on pci/next] [also build test ERROR on linux/master linus/master asm-generic/master v5.9-rc1 next-20200819] [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] url: https://github.com/0day-ci/linux/commits/George-Cherian/PCI-Add-pci_iounmap/20200820-002342 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: microblaze-randconfig-r021-20200818 (attached as .config) compiler: microblaze-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): microblaze-linux-ld: lib/pci_iomap.o: in function `pci_iounmap': >> lib/pci_iomap.c:143: multiple definition of `pci_iounmap'; arch/microblaze/pci/iomap.o:arch/microblaze/pci/iomap.c:15: first defined here # https://github.com/0day-ci/linux/commit/2bb1d10d9162a34cc1e6abb29f57489525bae30f git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review George-Cherian/PCI-Add-pci_iounmap/20200820-002342 git checkout 2bb1d10d9162a34cc1e6abb29f57489525bae30f vim +143 lib/pci_iomap.c 137 138 #ifndef CONFIG_GENERIC_IOMAP 139 #define pci_iounmap pci_iounmap 140 void pci_iounmap(struct pci_dev *dev, void __iomem *addr) 141 { 142 iounmap(addr); > 143 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org