Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:1632 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750927Ab1I1HTz (ORCPT ); Wed, 28 Sep 2011 03:19:55 -0400 Message-ID: <4E82CA8C.9060102@broadcom.com> (sfid-20110928_091958_566157_D710F867) Date: Wed, 28 Sep 2011 09:19:40 +0200 From: "Roland Vossen" MIME-Version: 1.0 To: "Johannes Berg" cc: "linux-wireless@vger.kernel.org" Subject: Re: Questions on ieee80211_frame_duration() References: <4E81A098.9040708@broadcom.com> <1317121805.4082.10.camel@jlt3.sipsolutions.net> In-Reply-To: <1317121805.4082.10.camel@jlt3.sipsolutions.net> Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi Johannes, >> c. In 802.11n there are 4 preamble types possible: >> - long (CCK rates) >> - short (CCK rates) >> - green field >> - mixed mode >> >> The function does not seem to take the last two types into account. >> Should it ? > > I suppose it needs to. I'd be happy if you would fix it :-) I feel a bit uncomfortable changing such a critical function, especially since I am not that familiar with Mac80211 design yet. So don't expect miracles from me on the short term :-) Bye, Roland.