[PATCH] tcp: remove useless update for flag parameter in tcp_enter_frto_loss()

[Li Yu <bingtian.ly@taobao.com>]

It seem that we forget remove below two lines after copying code :)

This update never impacts others.

Signed-off-by Li Yu <bingtian.ly@taobao.com>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e886e2f..b2f8ada 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2169,8 +2169,6 @@ static void tcp_enter_frto_loss(struct sock *sk,
int allowed_segments, int flag)
                        /* For some reason this R-bit might get cleared? */
                        if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS)
                                tp->retrans_out += tcp_skb_pcount(skb);
-                       /* ...enter this if branch just for the first segment */
-                       flag |= FLAG_DATA_ACKED;
                } else {
                        if (TCP_SKB_CB(skb)->sacked & TCPCB_RETRANS)
                                tp->undo_marker = 0;

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