1 files changed, 4 insertions, 3 deletions

diff --git a/net/dccp/output.c b/net/dccp/output.c
index c40f7f8a328b..95a3c2c6a3ce 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -134,12 +134,13 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
 
 unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
 {
+        struct inet_connection_sock *icsk = inet_csk(sk);
         struct dccp_sock *dp = dccp_sk(sk);
-        int mss_now = (pmtu - inet_csk(sk)->icsk_af_ops->net_header_len -
+        int mss_now = (pmtu - icsk->icsk_af_ops->net_header_len -
                        sizeof(struct dccp_hdr) - sizeof(struct dccp_hdr_ext));
 
         /* Now subtract optional transport overhead */
-        mss_now -= dp->dccps_ext_header_len;
+        mss_now -= icsk->icsk_ext_hdr_len;
 
         /*
          * FIXME: this should come from the CCID infrastructure, where, say,
@@ -152,7 +153,7 @@ unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
         mss_now -= ((5 + 6 + 10 + 6 + 6 + 6 + 3) / 4) * 4;
 
         /* And store cached results */
-        dp->dccps_pmtu_cookie = pmtu;
+        icsk->icsk_pmtu_cookie = pmtu;
         dp->dccps_mss_cache = mss_now;
 
         return mss_now;