On Wed, 2015-06-17 at 15:52 +0530, Krishna Chaitanya wrote:
> > I still don't like it. I also don't believe that what you're writing is
> > actually true. The only problem I can see is that it leads to higher
> > power consumption *while the system is suspended* - at resume time we
> > send a packet and thus kick the timers...
> "If" we send a packet, but until them the system will still be
> active.
But we *always* send a packet:
ieee80211_reconfig:
...
/*
* The sta might be in psm against the ap (e.g. because
* this was the state before a hw restart), so we
* explicitly send a null packet in order to make sure
* it'll sync against the ap (and get out of psm).
*/
if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) {
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
if (!sdata->u.mgd.associated)
continue;
ieee80211_send_nullfunc(local, sdata, 0);
}
}
Then again, you're talking about WoWLAN, but then ...
johannes
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