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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: "John W. Linville" <linville@tuxdriver.com>
Subject: Re: [linux-pm] [Regression][git head f4b87dee9] ath9k doesn't work correctly after resume from suspend to RAM
Date: Mon, 24 May 2010 00:59:57 +0200
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Cc: linux-pm@lists.linux-foundation.org, linux-wireless@vger.kernel.org,
       "Luis R. Rodriguez" <mcgrof@gmail.com>,
       LKML <linux-kernel@vger.kernel.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Maciej Rutecki <maciej.rutecki@gmail.com>,
       Daniel Yingqiang Ma <yma.cool@gmail.com>,
       David Miller <davem@davemloft.net>
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On Sunday 23 May 2010, Rafael J. Wysocki wrote:
> On Sunday 23 May 2010, Rafael J. Wysocki wrote:
> > On Saturday 22 May 2010, Rafael J. Wysocki wrote:
> > > Hi,
> > > 
> > > With current -git on Acer Ferrari One the ath9k driver doesn't seem to work
> > > after resume from suspend to RAM.  NetworkManager seems to think that it works,
> > > but it doesn't really connect with the AP and doesn't try to obtain an IP
> > > address.
> > 
> > Sorry, this was incorrect.  It actually tries to obtain an IP address, but
> > fails.  Apparently, it can't obtain the address without being reloaded.
> 
> iwlagn also has problems after resume from suspend to RAM (tested on
> Toshiba Portege R500).  In this case resume works once, but then the next
> attempt to suspend fails (I had to reboot the box every time that happened).
> 
> If iwlagn is unloaded, it is possible to suspend and resume the system
> arbitrary number of times, but then iwlagn doesn't work when its reloaded
> (it doesn't detect wireless networks).

Reverting

commit 03ceedea972a82d343fa5c2528b3952fa9e615d5
Author: Daniel Yingqiang Ma <yma.cool@gmail.com>
Date:   Tue Apr 13 15:12:07 2010 +0800

    ath9k: Group Key fix for VAPs

also fixes the resume issue with iwlagn.

So, please revert.

Thanks,
Rafael