diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index c74ef2c6e633..98dcd76ce836 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -71,6 +71,14 @@ extern void ioport_unmap(void __iomem *);
 struct pci_dev;
 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
+#else
+struct pci_dev;
+static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+	return NULL;
+}
+static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{ }
 #endif
 
 #endif