From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 07 Jun 2012 22:56:07 +0200
Subject: chip id 4318 regression: WARN_ON_ONCE(sdata->vif.hw_queue[i] >=
 n_queues))
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To: Michael =?ISO-8859-1?Q?B=FCsch?= <m@bues.ch>
Cc: Andre Heider <a.heider@gmail.com>, linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org, Larry Finger <Larry.Finger@lwfinger.net>, =?UTF-8?Q?Rafa=C5=82_Mi=C5=82ecki?= <zajec5@gmail.com>

On Thu, 2012-06-07 at 20:36 +0200, Johannes Berg wrote:

> However, it's also possible to actually *use* the new mac80211 feature.
> That would also help with IEEE80211_TX_CTL_SEND_AFTER_DTIM, you could
> ask mac80211 to use a separate HW queue for it (for tx_ring_mcast.) This
> may be quicker.

This might do it, I haven't tested it at all:

http://p.sipsolutions.net/3c6b003bb06e5298.txt

johannes