diff --git a/net/core/dev.c b/net/core/dev.c
index 6578d94..e485cb3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2519,10 +2519,11 @@
 
 /*
  * __skb_get_rxhash: calculate a flow hash based on src/dst addresses
- * and src/dst port numbers. Returns a non-zero hash number on success
- * and 0 on failure.
+ * and src/dst port numbers.  Sets rxhash in skb to non-zero hash value
+ * on success, zero indicates no valid hash.  Also, sets l4_rxhash in skb
+ * if hash is a canonical 4-tuple hash over transport ports.
  */
-__u32 __skb_get_rxhash(struct sk_buff *skb)
+void __skb_get_rxhash(struct sk_buff *skb)
 {
 	int nhoff, hash = 0, poff;
 	const struct ipv6hdr *ip6;
@@ -2574,6 +2575,7 @@
 			ports.v32 = * (__force u32 *) (skb->data + nhoff);
 			if (ports.v16[1] < ports.v16[0])
 				swap(ports.v16[0], ports.v16[1]);
+			skb->l4_rxhash = 1;
 		}
 	}
 
@@ -2586,7 +2588,7 @@
 		hash = 1;
 
 done:
-	return hash;
+	skb->rxhash = hash;
 }
 EXPORT_SYMBOL(__skb_get_rxhash);
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 27002df..edb66f3 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -529,6 +529,7 @@
 	new->mac_header		= old->mac_header;
 	skb_dst_copy(new, old);
 	new->rxhash		= old->rxhash;
+	new->l4_rxhash		= old->l4_rxhash;
 #ifdef CONFIG_XFRM
 	new->sp			= secpath_get(old->sp);
 #endif