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Re: mac80211 suspend gotchas

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On Friday 20 June 2008 15:31:13 Johannes Berg wrote:
> 
> > > This is not a hard problem to solve.
> > 
> > >  - suspend does, in this order (callback used):
> > >     * stop aggregation (ampdu_action)
> > >     * remove all keys (set_key)
> > >     * remove all STAs (sta_notify)
> > >     * remove all interfaces (remove_interface)
> > >     * stop the hardware (stop)
> > 
> > I think the hardware-stop should probably be done in the driver
> > suspend routine after the mac80211 notification and not by a mac80211 callback.
> > Otherwise this is going to get complicated wrt locking.
> 
> All of those callbacks potentially require locks, you really want to
> call them outside of any locked section in your ->resume and ->suspend
> handlers.

ops->stop is special wrt suspend.

-- 
Greetings Michael.
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