Hi Matthew, [auto build test WARNING on v4.3-rc6 -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Matthew-Minter/PCI-Build-setup-irq-o-on-all-arches/20151023-131018 config: microblaze-mmu_defconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=microblaze All warnings (new ones prefixed by >>): arch/microblaze/pci/pci-common.c: In function 'pcibios_root_bridge_prepare': >> arch/microblaze/pci/pci-common.c:863:18: warning: assignment from incompatible pointer type bridge->map_irq = of_irq_parse_and_map_pci; ^ vim +863 arch/microblaze/pci/pci-common.c 847 pr_debug("PCI: Fixup bus devices %d (%s)\n", 848 bus->number, bus->self ? pci_name(bus->self) : "PHB"); 849 850 list_for_each_entry(dev, &bus->devices, bus_list) { 851 /* Setup OF node pointer in archdata */ 852 dev->dev.of_node = pci_device_to_OF_node(dev); 853 854 /* Fixup NUMA node as it may not be setup yet by the generic 855 * code and is needed by the DMA init 856 */ 857 set_dev_node(&dev->dev, pcibus_to_node(dev->bus)); 858 } 859 } 860 861 int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) 862 { > 863 bridge->map_irq = of_irq_parse_and_map_pci; 864 return 0; 865 } 866 867 void pcibios_fixup_bus(struct pci_bus *bus) 868 { 869 /* When called from the generic PCI probe, read PCI<->PCI bridge 870 * bases. This is -not- called when generating the PCI tree from 871 * the OF device-tree. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation