diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index b3afafe46fff..3c78e1e8b2ad 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -677,7 +677,7 @@ static void radix_tree_free_nodes(struct radix_tree_node *node)
 }
 
 static inline int insert_entries(struct radix_tree_node *node,
-		void __rcu **slot, void *item, bool replace)
+		void __rcu **slot, void *item)
 {
 	if (*slot)
 		return -EEXIST;
@@ -711,7 +711,7 @@ int radix_tree_insert(struct radix_tree_root *root, unsigned long index,
 	if (error)
 		return error;
 
-	error = insert_entries(node, slot, item, false);
+	error = insert_entries(node, slot, item);
 	if (error < 0)
 		return error;