diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 0a36fff..561c8bc 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1513,6 +1513,9 @@
 
 	/* jiffies when first packet was created/queued */
 	unsigned long age;
+
+	/* Used in ipv6_gro_receive() */
+	int	proto;
 };
 
 #define NAPI_GRO_CB(skb) ((struct napi_gro_cb *)(skb)->cb)