From: Michael Wu <flamingice@sourmilk.net>
To: "John W. Linville" <linville@tuxdriver.com>
Subject: Re: mac80211/bcm43xx deadlock
Date: Wed, 18 Jul 2007 13:28:17 -0700
Cc: Johannes Berg <johannes@sipsolutions.net>,
	Michael Buesch <mb@bu3sch.de>, linux-wireless@vger.kernel.org,
	Jiri Benc <jbenc@suse.cz>
References: <1182848382.3830.5.camel@johannes.berg> <1182954090.4769.28.camel@johannes.berg> <20070718181347.GD6625@tuxdriver.com>
In-Reply-To: <20070718181347.GD6625@tuxdriver.com>
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On Wednesday 18 July 2007 11:13, John W. Linville wrote:
> I didn't see an answer here.  Before we remove it, I'd prefer to know
> what we thought we were protecting in the first place. :-)
>
It prevents BSSID/SSID/channel configuration from racing against userspace=
=20
configuration of the same thing. It's unlikely, however, and this deadlock =
is=20
much more serious than that race. I answered this in the patch for removing=
=20
the rtnl (01-kill-rtnl-locking.diff), though I wasn't as specific. This pat=
ch=20
should probably also go to stable.

=2DMichael Wu

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