On Sun, 2017-10-29 at 11:51 +0200, Luca Coelho wrote: > From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx> > > The 2016 version of the spec is more generic about when the > AP should update the power management state of the peer: > the AP shall update the state based on any management or > data frames. This means that even non-bufferable management > frames should be looked at to update to maintain the power > management state of the peer. > > This can avoid problematic cases for example if a station > disappears while being asleep and then re-appears. The AP > would remember it as in power save, but the Authentication > frame couldn't be used to set the peer as awake again. > Note that this issues wasn't really critical since at some > point (after the association) we would have removed the > station and created another one with all the states cleared. IIRC this caused a hwsim test failure - is that addressed yet? johannes
