Return-path: Received: from kvm.w1.fi ([128.177.28.162]:36941 "EHLO jmaline2.user.openhosting.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750819Ab2B0NqZ (ORCPT ); Mon, 27 Feb 2012 08:46:25 -0500 Date: Mon, 27 Feb 2012 15:46:10 +0200 From: Jouni Malinen To: Johannes Berg Cc: Paul Stewart , linux-wireless@vger.kernel.org, Rajkumar Manoharan , Arik Nemtsov , Eliad Peller Subject: Re: [RFCv2] mac80211: Don't let regulatory make us deaf Message-ID: <20120227134610.GA5070@w1.fi> (sfid-20120227_144633_251920_153DF443) References: <20120221060932.8A38C20517@glenhelen.mtv.corp.google.com> <20120221131946.AC1AD20578@glenhelen.mtv.corp.google.com> <1330254954.4401.9.camel@jlt3.sipsolutions.net> <1330255537.4401.10.camel@jlt3.sipsolutions.net> <1330338898.3483.10.camel@jlt3.sipsolutions.net> <20120227113212.GA4576@w1.fi> <1330342730.3483.34.camel@jlt3.sipsolutions.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1330342730.3483.34.camel@jlt3.sipsolutions.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Feb 27, 2012 at 12:38:50PM +0100, Johannes Berg wrote: > On Mon, 2012-02-27 at 13:32 +0200, Jouni Malinen wrote: > > However, there > > could be some hardware/firmware designs that would refuse HT+TKIP at > > lower layer, so skipping the channel (re-)configuration could > > potentially cause some problems. > That's a good point, but I don't really think is likely to exist. I can > see this in a full-MAC scenario, but there you get all the relevant > parameters in the nl80211 connect() call so can do the right choices > earlier than mac80211 can with auth/assoc calls. Even full MAC designs may end up moving towards auth/assoc calls for things like IEEE 802.11r.. (And maybe even more so with 802.11ai eventually.) > Of course, if this we actually happen to come across a device that needs > this it could set a flag somehwere and mac80211 could re-configure the > channel to non-HT on the assoc request, but right now I'd rather not > worry about that since we're moving towards multi-channel and have no > indication of such devices existing. Agree? Yeah, that works for me. -- Jouni Malinen PGP id EFC895FA