Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:49863 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751562Ab0H3HrK (ORCPT ); Mon, 30 Aug 2010 03:47:10 -0400 Subject: Re: [PATCH] mac80211: Add DS Parameter Set into Probe Request on 2.4 GHz From: Johannes Berg To: Jouni Malinen Cc: "John W. Linville" , linux-wireless@vger.kernel.org In-Reply-To: <20100828163751.GB23426@jm.kir.nu> References: <20100828163751.GB23426@jm.kir.nu> Content-Type: text/plain; charset="UTF-8" Date: Mon, 30 Aug 2010 09:47:04 +0200 Message-ID: <1283154424.3691.0.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sat, 2010-08-28 at 19:37 +0300, Jouni Malinen wrote: > IEEE Std 802.11k-2008 added DS Parameter Set information element into > Probe Request frames as an optional information on 2.4 GHz band (and > mandatory, if radio measurements are enabled). This allows APs to > filter out Probe Request frames that may be received from neighboring > overlapping channels and by doing so, reduce the number of unnecessary > frames in the air. Make mac80211 add this IE into Probe Request frames > whenever the channel is known (i.e., whenever hwscan is not used). Nice. Acked-by: Johannes Berg johannes