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From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
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Date: Mon, 19 Mar 2012 08:25:45 +0530
To: Johannes Berg <johannes@sipsolutions.net>
CC: "Manoharan, Rajkumar" <rmanohar@qca.qualcomm.com>,
	linux-wireless <linux-wireless@vger.kernel.org>
Subject: RE: mac80211 20/40 coexist
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Johannes Berg wrote:
> I'm not sure I can believe this -- surely the firmware has to have a way
> of dealing with stations that can't do 40 MHz and stations that can, so
> switching between the two doesn't seem like a major proposal? We also
> don't currently handle the action frames for that, but it seems like we
> should.

We have BSS_CHANGED_HT for doing this.

Sujith