From patchwork Sun Apr 14 12:11:58 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Gorski X-Patchwork-Id: 2441851 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 5185E3FD1A for ; Sun, 14 Apr 2013 12:13:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751375Ab3DNMNe (ORCPT ); Sun, 14 Apr 2013 08:13:34 -0400 Received: from mail.nanl.de ([217.115.11.12]:52893 "EHLO mail.nanl.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751355Ab3DNMNe (ORCPT ); Sun, 14 Apr 2013 08:13:34 -0400 Received: from ixxyvirt.lan (dslb-088-073-052-033.pools.arcor-ip.net [88.73.52.33]) by mail.nanl.de (Postfix) with ESMTPSA id 76D3140152; Sun, 14 Apr 2013 12:13:17 +0000 (UTC) From: Jonas Gorski To: linux-wireless@vger.kernel.org Cc: "John W. Linville" , Nishant Sarmukadam , Yogesh Ashok Powar , Lennert Buytenhek , Johannes Berg , Adrian Chadd , Felix Fietkau Subject: [PATCH] mwl8k: remove nonstandard rate 72 Mbps Date: Sun, 14 Apr 2013 14:11:58 +0200 Message-Id: <1365941518-4963-1-git-send-email-jogo@openwrt.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1365849071-2389-1-git-send-email-jogo@openwrt.org> References: <1365849071-2389-1-git-send-email-jogo@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org This rate causes an overflow in the extended rates IE's data rate field, with the overflowing bit setting the Basic Rate Set membership. This results in a bogus 8 Mpbs basic rate, making clients checking them refuse association. Since the rate is likely unused anyway (HT will yield better rates between supporting chips), we can just remove it. This fixes association from wpa_supplicant and Android 4.x and newer. Signed-off-by: Jonas Gorski --- Changes from RFC -> v1 * only remove 72 Mbps, as that's the problematic one * reword everything, add real cause drivers/net/wireless/mwl8k.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index ee1778c..6820fce 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -193,10 +193,10 @@ struct mwl8k_priv { struct rxd_ops *rxd_ops; struct ieee80211_supported_band band_24; struct ieee80211_channel channels_24[14]; - struct ieee80211_rate rates_24[14]; + struct ieee80211_rate rates_24[13]; struct ieee80211_supported_band band_50; struct ieee80211_channel channels_50[4]; - struct ieee80211_rate rates_50[9]; + struct ieee80211_rate rates_50[8]; u32 ap_macids_supported; u32 sta_macids_supported; @@ -366,7 +366,6 @@ static const struct ieee80211_rate mwl8k_rates_24[] = { { .bitrate = 360, .hw_value = 72, }, { .bitrate = 480, .hw_value = 96, }, { .bitrate = 540, .hw_value = 108, }, - { .bitrate = 720, .hw_value = 144, }, }; static const struct ieee80211_channel mwl8k_channels_50[] = { @@ -385,7 +384,6 @@ static const struct ieee80211_rate mwl8k_rates_50[] = { { .bitrate = 360, .hw_value = 72, }, { .bitrate = 480, .hw_value = 96, }, { .bitrate = 540, .hw_value = 108, }, - { .bitrate = 720, .hw_value = 144, }, }; /* Set or get info from Firmware */ @@ -3083,11 +3081,11 @@ static void legacy_rate_mask_to_array(u8 *rates, u32 mask) int j; /* - * Clear nonstandard rates 4 and 13. + * Clear nonstandard rate 4. */ mask &= 0x1fef; - for (i = 0, j = 0; i < 14; i++) { + for (i = 0, j = 0; i < 13; i++) { if (mask & (1 << i)) rates[j++] = mwl8k_rates_24[i].hw_value; }