From patchwork Fri Nov 18 09:43:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislaw Gruszka X-Patchwork-Id: 9436121 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B81C860469 for ; Fri, 18 Nov 2016 09:48:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C70C129867 for ; Fri, 18 Nov 2016 09:48:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BBFF62986B; Fri, 18 Nov 2016 09:48:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6862B29867 for ; Fri, 18 Nov 2016 09:48:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752044AbcKRJs0 (ORCPT ); Fri, 18 Nov 2016 04:48:26 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41712 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752818AbcKRJsW (ORCPT ); Fri, 18 Nov 2016 04:48:22 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D2550C04B94D; Fri, 18 Nov 2016 09:48:21 +0000 (UTC) Received: from localhost (vpn-225-243.phx2.redhat.com [10.3.225.243]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id uAI9mKuT023526; Fri, 18 Nov 2016 04:48:21 -0500 From: Stanislaw Gruszka To: linux-wireless@vger.kernel.org Cc: Helmut Schaa , Mathias Kresin Subject: [PATCH v2 7/9] rt2800: use RTS/CTS protection instead of CTS-to-self Date: Fri, 18 Nov 2016 10:43:59 +0100 Message-Id: <1479462241-9299-8-git-send-email-sgruszka@redhat.com> In-Reply-To: <1479462241-9299-1-git-send-email-sgruszka@redhat.com> References: <1479462241-9299-1-git-send-email-sgruszka@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Fri, 18 Nov 2016 09:48:21 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Change default to RTS/CTS protection. This has a cost of transmitting one more control frame (RTS) however protect us from traffic from hidden node. On station mode will use CTS-to-self if AP will configure that for the network. Signed-off-by: Stanislaw Gruszka --- drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index 812f8e7..57bfec4 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -1621,7 +1621,7 @@ static void rt2800_config_ht_opmode(struct rt2x00_dev *rt2x00dev, * => Protect all HT40 transmissions. */ mm20_mode = gf20_mode = 0; - mm40_mode = gf40_mode = 2; + mm40_mode = gf40_mode = 1; break; case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: @@ -1644,7 +1644,7 @@ static void rt2800_config_ht_opmode(struct rt2x00_dev *rt2x00dev, * Legacy STAs are present * => Protect all HT transmissions. */ - mm20_mode = mm40_mode = gf20_mode = gf40_mode = 2; + mm20_mode = mm40_mode = gf20_mode = gf40_mode = 1; /* * If erp protection is needed we have to protect HT @@ -1660,7 +1660,7 @@ static void rt2800_config_ht_opmode(struct rt2x00_dev *rt2x00dev, /* check for STAs not supporting greenfield mode */ if (any_sta_nongf) - gf20_mode = gf40_mode = 2; + gf20_mode = gf40_mode = 1; /* Update HT protection config */ rt2800_register_read(rt2x00dev, MM20_PROT_CFG, ®);