Return-path: Received: from mail-pz0-f46.google.com ([209.85.210.46]:62874 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754501Ab2CRTTK (ORCPT ); Sun, 18 Mar 2012 15:19:10 -0400 Received: by dajr28 with SMTP id r28so8819652daj.19 for ; Sun, 18 Mar 2012 12:19:10 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1332065984.3609.5.camel@jlt3.sipsolutions.net> References: <1331818214.3432.12.camel@jlt3.sipsolutions.net> <8F3AF1C9F856774F8C8D67AA7EDFEC8801E3005E@aphydexd01b> <1331902885.6753.10.camel@jlt3.sipsolutions.net> <8F3AF1C9F856774F8C8D67AA7EDFEC8801E3040B@aphydexd01b> <1332065984.3609.5.camel@jlt3.sipsolutions.net> Date: Sun, 18 Mar 2012 12:19:10 -0700 Message-ID: (sfid-20120318_201915_501997_6CA13B3D) Subject: Re: mac80211 20/40 coexist From: Adrian Chadd To: Johannes Berg Cc: "Manoharan, Rajkumar" , "Manoharan, Sujith" , linux-wireless Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 18 March 2012 03:19, 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. > > Note, however, that we're now discussing something already done -- > Paul's patch already removed the channel type update when all we wanted > was update the RC. When are stations being notified of a CWM change? I know FreeBSD handles it with a big stick at the moment - it just does a full interface reset and channel change. I don't necessarily like it, but I haven't yet sat down to look at when and why this is occuring. Adrian