From mboxrd@z Thu Jan 1 00:00:00 1970 From: Changli Gao Subject: [PATCH] nf_nat_core: merge the same lines Date: Thu, 22 Jul 2010 17:49:00 +0800 Message-ID: <1279792140-10445-1-git-send-email-xiaosuo@gmail.com> Cc: "David S. Miller" , netfilter-devel@vger.kernel.org, netdev@vger.kernel.org, Changli Gao To: Patrick McHardy Return-path: Sender: netfilter-devel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org nf_nat_core: merge the same lines proto->unique_tuple() will be called finally, if the previous calls fail. This patch checks the false condition of (range->flags & IP_NAT_RANGE_PROTO_RANDOM) instead to avoid duplicate line of code: proto->unique_tuple(). Signed-off-by: Changli Gao ---- net/ipv4/netfilter/nf_nat_core.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c index c7719b2..037a3a6 100644 --- a/net/ipv4/netfilter/nf_nat_core.c +++ b/net/ipv4/netfilter/nf_nat_core.c @@ -261,14 +261,9 @@ get_unique_tuple(struct nf_conntrack_tuple *tuple, rcu_read_lock(); proto = __nf_nat_proto_find(orig_tuple->dst.protonum); - /* Change protocol info to have some randomization */ - if (range->flags & IP_NAT_RANGE_PROTO_RANDOM) { - proto->unique_tuple(tuple, range, maniptype, ct); - goto out; - } - /* Only bother mapping if it's not already in range and unique */ - if ((!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED) || + if (!(range->flags & IP_NAT_RANGE_PROTO_RANDOM) && + (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED) || proto->in_range(tuple, maniptype, &range->min, &range->max)) && !nf_nat_used_tuple(tuple, ct)) goto out;