diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 7d5327c..fd5ea4d 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -222,6 +222,7 @@
 extern void pci_iov_release(struct pci_dev *dev);
 extern int pci_iov_resource_bar(struct pci_dev *dev, int resno,
 				enum pci_bar_type *type);
+extern void pci_restore_iov_state(struct pci_dev *dev);
 #else
 static inline int pci_iov_init(struct pci_dev *dev)
 {
@@ -236,6 +237,9 @@
 {
 	return 0;
 }
+static inline void pci_restore_iov_state(struct pci_dev *dev)
+{
+}
 #endif /* CONFIG_PCI_IOV */
 
 #endif /* DRIVERS_PCI_H */