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Revert "tcp: Always set urgent pointer if it's beyond snd_nxt" 

This reverts commit 64ff3b938e.

Jeff Chua reports that it breaks rlogin for him.

Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
David S. Miller 2009-02-05 15:38:31 -08:00
parent 0178b695fd
commit a23f4bbd8d
1 changed files with 4 additions and 8 deletions
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12
net/ipv4/tcp_output.c
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@ -663,14 +663,10 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
th->urg_ptr = 0;
/* The urg_mode check is necessary during a below snd_una win probe */
if (unlikely(tcp_urg_mode(tp))) {
if (between(tp->snd_up, tcb->seq + 1, tcb->seq + 0xFFFF)) {
th->urg_ptr = htons(tp->snd_up - tcb->seq);
th->urg = 1;
} else if (after(tcb->seq + 0xFFFF, tp->snd_nxt)) {
th->urg_ptr = 0xFFFF;
th->urg = 1;
}
if (unlikely(tcp_urg_mode(tp) &&
between(tp->snd_up, tcb->seq + 1, tcb->seq + 0xFFFF))) {
th->urg_ptr = htons(tp->snd_up - tcb->seq);
th->urg = 1;
}
tcp_options_write((__be32 *)(th + 1), tp, &opts, &md5_hash_location);