Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:56579 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751662Ab1ARL7u (ORCPT ); Tue, 18 Jan 2011 06:59:50 -0500 Received: by fxm20 with SMTP id 20so7109155fxm.19 for ; Tue, 18 Jan 2011 03:59:48 -0800 (PST) From: Bernhard Schmidt To: Johannes Berg Subject: Re: [PATCH 1/5] mac80211: add DFS related channel flags Date: Tue, 18 Jan 2011 12:59:46 +0100 Cc: "linux-wireless" , lrodriguez@atheros.com, nbd@openwrt.org, dubowoj@neratec.com, zefir.kurtisi@neratec.com, simon.wunderlich@saxnet.de References: <201101171621.29863.bernhard.schmidt@saxnet.de> <20110117161133.66B54207E@mx.techwires.net> <1295347236.3563.5.camel@jlt3.sipsolutions.net> In-Reply-To: <1295347236.3563.5.camel@jlt3.sipsolutions.net> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Message-Id: <201101181259.46719.bernhard.schmidt@saxnet.de> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tuesday, January 18, 2011 11:40:36 Johannes Berg wrote: > On Mon, 2011-01-17 at 09:31 +0100, Bernhard Schmidt wrote: > > Before a radar channel can be used, a full CAC has be done, the > > IEEE80211_CHAN_RADAR_CLEAR flags indicates that this has been done. > > If either during CAC or in-service monitoring interference is > > detected, the channel is added to NOL and marked with > > IEEE80211_CHAN_RADAR_INTERFERENCE. > > I'm not sure about this -- shouldn't that be global information? If > one device in the system records a radar on the channel, it surely > applies to other devices as well, even if they are hot-plugged after > the radar was found? True, I've based this on our IRC discussions, the consensus there was to do it per-wiphy only at first. -- Best regards, Dipl.-Inf. (FH) Bernhard Schmidt (software development) saxnet GmbH, Willy-Brandt-Ring 1, 08606 Oelsnitz Tel. +49 (0) 3741 300 6. 100 - Fax +49 (0) 3741 300 6. 101 managing director: Steffen Dreise - county court Chemnitz - HRB 23017 http://www.saxnet.de