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authorEric Dumazet <edumazet@google.com>2021-10-27 13:19:22 -0700
committerDavid S. Miller <davem@davemloft.net>2021-10-28 12:44:39 +0100
commit4f2266748eabc42f107ecb6a3cc5b34614b29a12 (patch)
tree455495f80c8be4d8c65984ae132f6473446913fe /net/ipv4/tcp_output.c
parenta52fe46ef160b4101b8d14209729f49a71388b52 (diff)
tcp: do not clear skb->csum if already zero
Freshly allocated skbs have their csum field cleared already. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
-rw-r--r--net/ipv4/tcp_output.c1
1 files changed, 0 insertions, 1 deletions
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);