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-rw-r--r--net/ipv4/tcp_input.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index bef9f04c22b..b6771f9eb9d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1115,7 +1115,7 @@ static int tcp_is_sackblock_valid(struct tcp_sock *tp, int is_dsack,
return 0;
/* ...Then it's D-SACK, and must reside below snd_una completely */
- if (!after(end_seq, tp->snd_una))
+ if (after(end_seq, tp->snd_una))
return 0;
if (!before(start_seq, tp->undo_marker))