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bridge: Avoid unnecessary clone on forward path

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When the packet is delivered to the local bridge device we may
end up cloning it unnecessarily if no bridge port can receive
the packet in br_flood.

This patch avoids this by moving the skb_clone into br_flood.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2010-02-27 19:41:41 +00:00 • committed by David S. Miller
parent 68b7c895be
commit b33084be19
3 changed files with 26 additions and 17 deletions
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5
net/bridge/br_input.c
View file

@ -72,14 +72,11 @@ int br_handle_frame_finish(struct sk_buff *skb)
skb = NULL;
}
if (skb2 == skb)
skb2 = skb_clone(skb, GFP_ATOMIC);
if (skb) {
if (dst)
br_forward(dst->dst, skb);
else
br_flood_forward(br, skb);
br_flood_forward(br, skb, skb2);
}
if (skb2)