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-rw-r--r--sys/netinet/tcp_output.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c
index eb614cc..f6afc18 100644
--- a/sys/netinet/tcp_output.c
+++ b/sys/netinet/tcp_output.c
@@ -200,7 +200,7 @@ again:
sack_rxmit = 0;
len = 0;
p = NULL;
- if (tp->sack_enable && SEQ_LT(tp->snd_una,tp->snd_recover) &&
+ if (tp->sack_enable && IN_FASTRECOVERY(tp) &&
(p = tcp_sack_output(tp))) {
KASSERT(tp->snd_cwnd >= 0,
("%s: CWIN is negative : %ld", __func__, tp->snd_cwnd));
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