1 files changed, 3 insertions, 1 deletions

diff --git a/include/net/udp.h b/include/net/udp.h
index 2ecfc6e15609..68a1fefe3dfe 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -111,7 +111,9 @@ struct sk_buff;
  */
 static inline __sum16 __udp_lib_checksum_complete(struct sk_buff *skb)
 {
-        return __skb_checksum_complete_head(skb, UDP_SKB_CB(skb)->cscov);
+        return (UDP_SKB_CB(skb)->cscov == skb->len ?
+                __skb_checksum_complete(skb) :
+                __skb_checksum_complete_head(skb, UDP_SKB_CB(skb)->cscov));
 }
 
 static inline int udp_lib_checksum_complete(struct sk_buff *skb)