diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index ce6a3666b3d9878f70be6fb65f3e1272fdf6b6b2..553d8ee55c1c4aa3c9f6567867642d3505cf89df 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -608,7 +608,7 @@ int pci_iov_resource_bar(struct pci_dev *dev, int resno,
  * the VF BAR size multiplied by the number of VFs.  The alignment
  * is just the VF BAR size.
  */
-int pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
+resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
 {
 	struct resource tmp;
 	enum pci_bar_type type;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 7754a678ab15cc77445d396aa59409658bf8006f..6beb11b617a92973f7a32cc47a7343a759218d6e 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -264,7 +264,8 @@ extern int pci_iov_init(struct pci_dev *dev);
 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 int pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
+extern resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev,
+						    int resno);
 extern void pci_restore_iov_state(struct pci_dev *dev);
 extern int pci_iov_bus_range(struct pci_bus *bus);
 
@@ -320,7 +321,7 @@ static inline int pci_ats_enabled(struct pci_dev *dev)
 }
 #endif /* CONFIG_PCI_IOV */
 
-static inline int pci_resource_alignment(struct pci_dev *dev,
+static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
 					 struct resource *res)
 {
 #ifdef CONFIG_PCI_IOV