diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index c1068ae..5920bda 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -140,9 +140,9 @@
 	return netdev_vport->dev->ifindex;
 }
 
-static unsigned packet_length(const struct sk_buff *skb)
+static unsigned int packet_length(const struct sk_buff *skb)
 {
-	unsigned length = skb->len - ETH_HLEN;
+	unsigned int length = skb->len - ETH_HLEN;
 
 	if (skb->protocol == htons(ETH_P_8021Q))
 		length -= VLAN_HLEN;