net: gro: avoid double copy in skb_gro_receive()

__copy_skb_header(nskb, p) already copied p->cb[], no need to copy
it again.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ccbabf5657323cc94cd6f89f9af1532c77b0934b..ac9e44a6ab2bf31cafac577d151babed96779580 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3028,7 +3028,6 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
        memcpy(skb_mac_header(nskb), skb_mac_header(p),
               p->data - skb_mac_header(p));
 
-       *NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p);
        skb_shinfo(nskb)->frag_list = p;
        skb_shinfo(nskb)->gso_size = pinfo->gso_size;
        pinfo->gso_size = 0;