From: Stephen Hemminger <redacted>
Date: Wed, 18 May 2011 08:17:18 -0700

The first netlink code in the bridge module was to notify
user space implementations of Spanning Tree Protocol about
new ports. It did not handle the case of kernel mode STP 
changing states which could be useful for monitoring.

This patch causes RTM_NEWLINK message to occur on kernel
transitions. It does not send message if request was from user
space STP, since that would cause reflection and break existing
API.

Signed-off-by: Stephen Hemminger <redacted>

I agree with Ben that hiding events in any way is going to
be a severe limitation, long term.

I do not want to apply this and keep going down this road.

Sorry.