diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index b4bb9e1..a8e99f9 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -884,7 +884,7 @@ static int create_ddw(struct pci_dev *dev, const u32 *ddw_avail,
 }
 
 static void restore_default_window(struct pci_dev *dev,
-				u32 ddw_restore_token, unsigned long liobn)
+					u32 ddw_restore_token)
 {
 	struct eeh_dev *edev;
 	u32 cfg_addr;
@@ -1100,7 +1100,7 @@ out_free_prop:
 
 out_restore_window:
 	if (ddw_restore_token)
-		restore_default_window(dev, ddw_restore_token, liobn);
+		restore_default_window(dev, ddw_restore_token);
 
 out_unlock:
 	mutex_unlock(&direct_window_init_mutex);