mptcp: ensure tx skbs always have the MPTCP ext

[linux-2.6-microblaze.git] / net / mptcp / protocol.c

diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 2602f13..dbcebf5 100644 (file)
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -1316,7 +1316,7 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk,
                        goto alloc_skb;
                }
 
-               must_collapse = (info->size_goal - skb->len > 0) &&
+               must_collapse = (info->size_goal > skb->len) &&
                                (skb_shinfo(skb)->nr_frags < sysctl_max_skb_frags);
                if (must_collapse) {
                        size_bias = skb->len;
@@ -1325,7 +1325,7 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk,
        }
 
 alloc_skb:
-       if (!must_collapse && !ssk->sk_tx_skb_cache &&
+       if (!must_collapse &&
            !mptcp_alloc_tx_skb(sk, ssk, info->data_lock_held))
                return 0;