Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:56967 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751208Ab1ARKjw (ORCPT ); Tue, 18 Jan 2011 05:39:52 -0500 Subject: Re: [PATCH 1/5] mac80211: add DFS related channel flags From: Johannes Berg To: Bernhard Schmidt Cc: linux-wireless , lrodriguez@atheros.com, nbd@openwrt.org, dubowoj@neratec.com, zefir.kurtisi@neratec.com, simon.wunderlich@saxnet.de In-Reply-To: <20110117161133.66B54207E@mx.techwires.net> References: <201101171621.29863.bernhard.schmidt@saxnet.de> <20110117161133.66B54207E@mx.techwires.net> Content-Type: text/plain; charset="UTF-8" Date: Tue, 18 Jan 2011 11:40:36 +0100 Message-ID: <1295347236.3563.5.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: 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? johannes