Re: [PATCH v2 0/3] mac80211 suspend/resume

["Bob Copeland" <me@bobcopeland.com>]

On Tue, 06 Jan 2009 11:45:06 -0500, Dan Williams wrote
> You still want to tell NM to go to sleep so it doesn't see the
> disconnection from the supplicant (triggered by the driver because it
> was going to sleep), and thus try to reconnect, or try a different AP.

Well, I tried it without the hack and it works (connection stays up 
over a short suspend period).  This is with the new mac80211 suspend
patches, where suspend/resume looks like this:

suspend:
  suspend userspace (freezes NM)
  save bssid, keys etc
  if wlan0 up
     ifdown wlan0 (note NM is already frozen)
  power down hw

resume:
  power up hw
  if wlan0 was up
     ifup wlan0
  reload config, bssid, ...
  resume userspace

However, _with_ the current procedure of telling NM to go to sleep, it
tries to reconnect after resume because NM takes care of downing the
interfaces.  As a result mac80211 never gets the chance to save the
state of the running interfaces.

-- 
Bob Copeland %% www.bobcopeland.com