From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937874AbcKONUX (ORCPT ); Tue, 15 Nov 2016 08:20:23 -0500 Received: from s3.sipsolutions.net ([5.9.151.49]:48742 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934979AbcKONUT (ORCPT ); Tue, 15 Nov 2016 08:20:19 -0500 Message-ID: <1479216012.12007.27.camel@sipsolutions.net> Subject: Re: [PATCH V2] mac80211: Ignore VHT IE from peer with wrong rx_mcs_map From: Johannes Berg To: Filip Matusiak , linux-wireless@vger.kernel.org Cc: marek.kwaczynski@tieto.com, davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Date: Tue, 15 Nov 2016 14:20:12 +0100 In-Reply-To: <1478077466-4308-1-git-send-email-filip.matusiak@tieto.com> (sfid-20161102_100438_908657_9F74D2B9) References: <1478077466-4308-1-git-send-email-filip.matusiak@tieto.com> (sfid-20161102_100438_908657_9F74D2B9) Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.20.5-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2016-11-02 at 10:04 +0100, Filip Matusiak wrote: > This is a workaround for VHT-enabled STAs which break the spec > and have the VHT-MCS Rx map filled in with value 3 for all eight > spacial streams, an example is AR9462 in AP mode. > > As per spec, in section 22.1.1 Introduction to the VHT PHY > A VHT STA shall support at least single spactial stream VHT-MCSs > 0 to 7 (transmit and receive) in all supported channel widths. > > Some devices in STA mode will get firmware assert when trying to > associate, examples are QCA9377 & QCA6174. > > Packet example of broken VHT Cap IE of AR9462: > > [...] Applied, thanks. johannes