From 4f2266748eabc42f107ecb6a3cc5b34614b29a12 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 27 Oct 2021 13:19:22 -0700 Subject: tcp: do not clear skb->csum if already zero Freshly allocated skbs have their csum field cleared already. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/tcp_output.c | 1 - 1 file changed, 1 deletion(-) (limited to 'net/ipv4/tcp_output.c') diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 7ecf35d0f847..5664355b0d09 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2398,7 +2398,6 @@ static int tcp_mtu_probe(struct sock *sk) TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size; TCP_SKB_CB(nskb)->tcp_flags = TCPHDR_ACK; TCP_SKB_CB(nskb)->sacked = 0; - nskb->csum = 0; tcp_insert_write_queue_before(nskb, skb, sk); tcp_highest_sack_replace(sk, skb, nskb); -- cgit v1.2.3