Return-path: Received: from nbd.name ([46.4.11.11]:53591 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751150Ab1ITWJ1 (ORCPT ); Tue, 20 Sep 2011 18:09:27 -0400 Message-ID: <4E790F13.4070609@openwrt.org> (sfid-20110921_000935_297622_C7EB87A4) Date: Wed, 21 Sep 2011 00:09:23 +0200 From: Felix Fietkau MIME-Version: 1.0 To: "Luis R. Rodriguez" CC: Johannes Berg , Javier Cardona , Alexander Simon , linux-wireless@vger.kernel.org Subject: Re: [PATCH v3 3/3] mac80211: Add HT operation modes for IBSS References: <35635039ce7d4a79dc62b19d51ccf0d5d4838112.1316297595.git.an.alexsimon@googlemail.com> <1316437459.5995.29.camel@jlt3.sipsolutions.net> <36569806.Rgjanm0GiI@alex-1> <1316521312.3953.27.camel@jlt3.sipsolutions.net> <4E78D990.3090601@openwrt.org> <4E78DF6F.3060304@openwrt.org> <4E78EA05.6000005@openwrt.org> <4E78FFEB.1090301@openwrt.org> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 2011-09-20 11:52 PM, Luis R. Rodriguez wrote: > On Tue, Sep 20, 2011 at 2:26 PM, Luis R. Rodriguez wrote: >> On Tue, Sep 20, 2011 at 2:04 PM, Felix Fietkau wrote: >>> This is not really an IBSS specific issue. It applies to WDS or monitor mode >>> as well. >> >> Excellent point! >> >>> If we want to properly enforce Annex J channel pairs, this needs to >>> be moved to cfg80211. >> >> This does not still address the issue of one peer finding out it >> cannot deal with an HT40 pair and correcting the topology and >> propagating this out. Not yet sure if for 802.11ac we'll need >> something similar but its worth considering. > > Sorry I meant section 11.14.3.2 which deals with neighboring BSSes > from the scan list, the annex J stuff would still need to be done by > all the initial radiators too though for a primary. If we need to handle this properly in the initial patch, then this can probably only be done in a simple way by not supporting HT40 yet. It should still support joining an IBSS with a different HT opmode though. - Felix