netfilter: bridge: neigh_head and physoutdev can't be used at same time

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The neigh_header is only needed when we detect DNAT after prerouting
and neigh cache didn't have a mac address for us.

The output port has not been chosen yet so we can re-use the storage
area, bringing struct size down to 32 bytes on x86_64.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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Florian Westphal 2015-05-03 22:05:28 +02:00 • committed by Pablo Neira Ayuso

parent a9756e6f63

commit 7fb48c5bc3

2 changed files with 7 additions and 3 deletions

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8

include/linux/skbuff.h

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2

net/bridge/br_netfilter.c

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