ibm4xx_pci_make_tag
.pc_make_tag = ibm4xx_pci_make_tag,
tag = ibm4xx_pci_make_tag(v, bus, dev, func);
.pc_make_tag = ibm4xx_pci_make_tag,
.pc_make_tag = ibm4xx_pci_make_tag,
pcitag_t ibm4xx_pci_make_tag(void *, int, int, int);