From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next v2 5/7] rocker: add FDB cleanup timer
Date: Mon, 21 Sep 2015 17:11:15 -0700 (PDT)
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From: sfeldma@gmail.com
Date: Sun, 20 Sep 2015 08:48:27 -0700

> From: Scott Feldman <sfeldma@gmail.com>
> 
> Add a timer to each rocker switch to do FDB entry cleanup by ageing out
> expired entries.  The timer scheduling algo is copied from the bridge
> driver, for the most part, to keep the firing of the timer to a minimum.
> 
> Signed-off-by: Scott Feldman <sfeldma@gmail.com>
> Acked-by: Jiri Pirko <jiri@resnulli.us>

You need to del_timer_sync() or similar on this timer in
rocker_remove().