[BRIDGE]: optimize conditional in forward path

Small optimizations of bridge forwarding path.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 56f3aa4..0dca027 100644 (file)
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -20,14 +20,11 @@
 #include <linux/netfilter_bridge.h>
 #include "br_private.h"
 
+/* Don't forward packets to originating port or forwarding diasabled */
 static inline int should_deliver(const struct net_bridge_port *p, 
                                 const struct sk_buff *skb)
 {
-       if (skb->dev == p->dev ||
-           p->state != BR_STATE_FORWARDING)
-               return 0;
-
-       return 1;
+       return (skb->dev != p->dev && p->state == BR_STATE_FORWARDING);
 }
 
 static inline unsigned packet_length(const struct sk_buff *skb)
@@ -55,10 +52,9 @@ int br_dev_queue_push_xmit(struct sk_buff *skb)
 
 int br_forward_finish(struct sk_buff *skb)
 {
-       NF_HOOK(PF_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev,
-                       br_dev_queue_push_xmit);
+       return NF_HOOK(PF_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev,
+                      br_dev_queue_push_xmit);
 
-       return 0;
 }
 
 static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)