From: Eric Dumazet <edumazet@google.com>
Date: Tue, 11 Dec 2012 08:38:29 +0000 (+0000)
Subject: net: gro: avoid double copy in skb_gro_receive()
X-Git-Tag: v3.8~351^2~18
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=75be437230b06fca87908a787f70de0ce7fbab8c;p=platform%2Fkernel%2Flinux-amlogic.git

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 ccbabf5..ac9e44a 100644
--- 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;