From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933211Ab3FRQRt (ORCPT ); Tue, 18 Jun 2013 12:17:49 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:49428 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933185Ab3FRQRq (ORCPT ); Tue, 18 Jun 2013 12:17:46 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sujith Manoharan , "John W. Linville" Subject: [ 14/48] ath9k: Disable PowerSave by default Date: Tue, 18 Jun 2013 09:17:40 -0700 Message-Id: <20130618161727.915906741@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.254.g5578ad7 In-Reply-To: <20130618161725.912524266@linuxfoundation.org> References: <20130618161725.912524266@linuxfoundation.org> User-Agent: quilt/0.60-5.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Greg Kroah-Hartman 3.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sujith Manoharan commit 531671cb17af07281e6f28c1425f754346e65c41 upstream. Almost all the DMA issues which have plagued ath9k (in station mode) for years are related to PS. Disabling PS usually "fixes" the user's connection stablility. Reports of DMA problems are still trickling in and are sitting in the kernel bugzilla. Until the PS code in ath9k is given a thorough review, disbale it by default. The slight increase in chip power consumption is a small price to pay for improved link stability. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/ath/ath9k/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -766,8 +766,7 @@ void ath9k_set_hw_capab(struct ath_softc hw->wiphy->iface_combinations = &if_comb; hw->wiphy->n_iface_combinations = 1; - if (AR_SREV_5416(sc->sc_ah)) - hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;