diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index d08dcf7..e793051 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -243,7 +243,7 @@
 			   const struct ovs_key_ipv4_tunnel *output);
 
 bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
-		const struct sw_flow_key *key, int key_len);
+		const struct sw_flow_key *key, int key_end);
 
 struct sw_flow_mask {
 	int ref_count;