From 2452a99dc0496a90abd0090c280671370c0f3e1c Mon Sep 17 00:00:00 2001
From: Changli Gao <xiaosuo@gmail.com>
Date: Mon, 2 Aug 2010 17:35:49 +0200
Subject: [PATCH] netfilter: nf_nat: don't check if the tuple is unique when
 there isn't any other choice

The tuple got from unique_tuple() doesn't need to be really unique, so the
check for the unique tuple isn't necessary, when there isn't any other
choice. Eliminating the unnecessary nf_nat_used_tuple() can save some CPU
cycles too.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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