From a461c0297f2e80c78eaa03fc5141bf57a814ff4f Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Thu, 10 Mar 2011 05:57:04 +0000 Subject: [PATCH] bridge: skip forwarding delay if not using STP If Spanning Tree Protocol is not enabled, there is no good reason for the bridge code to wait for the forwarding delay period before enabling the link. The purpose of the forwarding delay is to allow STP to learn about other bridges before nominating itself. The only possible impact is that when starting up a new port the bridge may flood a packet now, where previously it might have seen traffic from the other host and preseeded the forwarding table. Includes change for local variable br already available in that func. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/bridge/br_stp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index 57186d84d2bd..47582d301fbe 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -375,12 +375,12 @@ static void br_make_forwarding(struct net_bridge_port *p) if (p->state != BR_STATE_BLOCKING) return; - if (br->forward_delay == 0) { + if (br->stp_enabled == BR_NO_STP || br->forward_delay == 0) { p->state = BR_STATE_FORWARDING; br_topology_change_detection(br); del_timer(&p->forward_delay_timer); } - else if (p->br->stp_enabled == BR_KERNEL_STP) + else if (br->stp_enabled == BR_KERNEL_STP) p->state = BR_STATE_LISTENING; else p->state = BR_STATE_LEARNING; -- 2.20.1