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authorThomas Gleixner <tglx@linutronix.de>2016-09-26 15:47:03 -0400
committerThomas Gleixner <tglx@linutronix.de>2016-09-26 15:47:03 -0400
commit1e1b37273cf719545da50b76f214f983a710aaf4 (patch)
tree033f6062325ef7aaeefe8559bb409ab7d2be3c76 /net/ipv4/tcp_ipv4.c
parentc183a603e8d8a5a189729b77d0c623a3d5950e5f (diff)
parentc291b015158577be533dd5a959dfc09bab119eed (diff)
Merge branch 'x86/urgent' into x86/apic
Bring in the upstream modifications so we can fixup the silent merge conflict which is introduced by this merge. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 32b048e524d6..7158d4f8dae4 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -814,8 +814,14 @@ static void tcp_v4_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb,
u32 seq = (sk->sk_state == TCP_LISTEN) ? tcp_rsk(req)->snt_isn + 1 :
tcp_sk(sk)->snd_nxt;
+ /* RFC 7323 2.3
+ * The window field (SEG.WND) of every outgoing segment, with the
+ * exception of <SYN> segments, MUST be right-shifted by
+ * Rcv.Wind.Shift bits:
+ */
tcp_v4_send_ack(sock_net(sk), skb, seq,
- tcp_rsk(req)->rcv_nxt, req->rsk_rcv_wnd,
+ tcp_rsk(req)->rcv_nxt,
+ req->rsk_rcv_wnd >> inet_rsk(req)->rcv_wscale,
tcp_time_stamp,
req->ts_recent,
0,