1 files changed, 3 insertions, 3 deletions

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 98af3697c718..a8024eaa0e87 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -799,7 +799,9 @@ static int __ip_append_data(struct sock *sk,
         int csummode = CHECKSUM_NONE;
         struct rtable *rt = (struct rtable *)cork->dst;
 
-        exthdrlen = transhdrlen ? rt->dst.header_len : 0;
+        skb = skb_peek_tail(queue);
+
+        exthdrlen = !skb ? rt->dst.header_len : 0;
         length += exthdrlen;
         transhdrlen += exthdrlen;
         mtu = cork->fragsize;
@@ -825,8 +827,6 @@ static int __ip_append_data(struct sock *sk,
             !exthdrlen)
                 csummode = CHECKSUM_PARTIAL;
 
-        skb = skb_peek_tail(queue);
-
         cork->length += length;
         if (((length > mtu) || (skb && skb_is_gso(skb))) &&
             (sk->sk_protocol == IPPROTO_UDP) &&