linux-kernel - Re: mac80211 suspend corner case (was: Asus eeepc 1008HA suspend issue and mac80211 suspend corner) case

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Message-ID: <1261658626.28729.9.camel@johannes.local>
Date:	Thu, 24 Dec 2009 13:43:46 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	"Luis R. Rodriguez" <lrodriguez@...eros.com>
Cc:	Luis Rodriguez <Luis.Rodriguez@...eros.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Alan Jenkins <alan-jenkins@...fmail.co.uk>
Subject: Re: mac80211 suspend corner case (was: Asus eeepc 1008HA suspend 
 issue and mac80211 suspend corner) case

On Wed, 2009-12-23 at 11:19 -0800, Luis R. Rodriguez wrote:

> Reason for me suggesting for mac80211 to deal with this is drivers
> won't know if their failed start() call will have been from resume and
> we likely won't add a bool to start() callback since we already
> debated this a while back.
> 
> I don't really care about hardware failures in other cases right now,

Which is the problem.

If your hardware suddenly fails, _regardless_ of when, you need to
unregister from mac80211 since otherwise you'll get loads of callbacks
to failed hardware.

Resume really isn't as special as you'd like to believe.

johannes

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