Return-path: Received: from nbd.name ([46.4.11.11]:41184 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757098Ab3HMKdi (ORCPT ); Tue, 13 Aug 2013 06:33:38 -0400 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com Subject: [PATCH 3/5] ath9k: avoid accessing MRC registers on single-chain devices Date: Tue, 13 Aug 2013 12:33:28 +0200 Message-Id: <1376390010-81819-3-git-send-email-nbd@openwrt.org> (sfid-20130813_123344_258696_CD05E664) In-Reply-To: <1376390010-81819-1-git-send-email-nbd@openwrt.org> References: <1376390010-81819-1-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: They are not implemented, and accessing them might trigger errors Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau --- drivers/net/wireless/ath/ath9k/ar9003_phy.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 39c3730..18a5aa4 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1172,6 +1172,10 @@ skip_ws_det: * is_on == 0 means MRC CCK is OFF (more noise imm) */ bool is_on = param ? 1 : 0; + + if (ah->caps.rx_chainmask == 1) + break; + REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL, AR_PHY_MRC_CCK_ENABLE, is_on); REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL, -- 1.8.0.2