diff --git a/include/linux/pci.h b/include/linux/pci.h
index a3ad762..9724910 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -838,6 +838,7 @@
 void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
 void __iomem * const * pcim_iomap_table(struct pci_dev *pdev);
 int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name);
+void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask);
 
 extern int pci_pci_problems;
 #define PCIPCI_FAIL		1	/* No PCI PCI DMA */