diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
index 5a2f9bf53384b600ba41a40085a1dafbec6e6f1e..8fbb0a55545d93dee68f2c1649d02e60b60d4117 100644
--- a/include/asm-generic/pci_iomap.h
+++ b/include/asm-generic/pci_iomap.h
@@ -25,6 +25,8 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP
 extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port,
 				      unsigned int nr);
+#elif !defined(CONFIG_HAS_IOPORT_MAP)
+#define __pci_ioport_map(dev, port, nr) NULL
 #else
 #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr))
 #endif