bridge: minor cleanups

Some minor cleanups that won't impact code:
  1. Remove inline from non-critical functions; compiler will most
     likely inline them anyway.
  2. Make function args const where possible.
  3. Whitespace cleanup

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_private_stp.h b/net/bridge/br_private_stp.h
index 642ef47..05ed9bc 100644
--- a/net/bridge/br_private_stp.h
+++ b/net/bridge/br_private_stp.h
@@ -56,7 +56,8 @@
 extern void br_config_bpdu_generation(struct net_bridge *);
 extern void br_configuration_update(struct net_bridge *);
 extern void br_port_state_selection(struct net_bridge *);
-extern void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu);
+extern void br_received_config_bpdu(struct net_bridge_port *p,
+				    const struct br_config_bpdu *bpdu);
 extern void br_received_tcn_bpdu(struct net_bridge_port *p);
 extern void br_transmit_config(struct net_bridge_port *p);
 extern void br_transmit_tcn(struct net_bridge *br);