Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:50941 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933938Ab2KATba (ORCPT ); Thu, 1 Nov 2012 15:31:30 -0400 Message-ID: <1351798320.17469.1.camel@jlt4.sipsolutions.net> (sfid-20121101_203144_522965_C7D4CD89) Subject: Re: [PATCH v4 5/6] nl80211/cfg80211: add ap channel switch command From: Johannes Berg To: Adrian Chadd Cc: Victor Goldenshtein , Michal Kazior , "linux-wireless@vger.kernel.org" , "kgiori@qca.qualcomm.com" , "mcgrof@frijolero.org" , "zefir.kurtisi@neratec.com" , "j@w1.fi" , "coelho@ti.com" , "igalc@ti.com" , "nbd@nbd.name" , "simon.wunderlich@s2003.tu-chemnitz.de" Date: Thu, 01 Nov 2012 20:32:00 +0100 In-Reply-To: (sfid-20121101_181601_259924_BD2A03DE) References: <1350226137-13704-1-git-send-email-victorg@ti.com> <1350226137-13704-6-git-send-email-victorg@ti.com> <5086371D.2080108@tieto.com> <50922AAF.3060605@ti.com> (sfid-20121101_181601_259924_BD2A03DE) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2012-11-01 at 10:15 -0700, Adrian Chadd wrote: > On 1 November 2012 00:54, Victor Goldenshtein wrote: > > > If the driver/device supports MR only on a SC - means it doesn't supports > > channel switch in MR, so basically the radar detection event triggers AP > > channel switch which fails (with this new check) and the AP shut down. > > Of course there are possible driver specific workarounds (as you mentioned > > above) but these are not part of this series. > > > > Just for interest's sake, what is the use case having two APs on the same > > channel? > > One interface _just_ doing DFS/spectral/etc, and not hampered by > trying to do TX/RX. Or maybe just multi-BSSID use cases?! johannes