From patchwork Thu May 19 04:14:54 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Levin X-Patchwork-Id: 68067 Delivered-To: patch@linaro.org Received: by 10.140.92.199 with SMTP id b65csp2982257qge; Wed, 18 May 2016 21:17:18 -0700 (PDT) X-Received: by 10.98.35.15 with SMTP id j15mr794489pfj.108.1463631438083; Wed, 18 May 2016 21:17:18 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q14si16970047par.57.2016.05.18.21.17.17; Wed, 18 May 2016 21:17:18 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751098AbcESERR (ORCPT + 3 others); Thu, 19 May 2016 00:17:17 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:24499 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750818AbcESERQ (ORCPT ); Thu, 19 May 2016 00:17:16 -0400 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u4J4HC9q019516 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 19 May 2016 04:17:13 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id u4J4HCk6026271 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 19 May 2016 04:17:12 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id u4J4HAR6014102; Thu, 19 May 2016 04:17:11 GMT Received: from lappy.us.oracle.com (/10.154.155.55) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 18 May 2016 21:17:09 -0700 From: Sasha Levin To: stable@vger.kernel.org, stable-commits@vger.kernel.org Cc: Srinivas Kandagatla , Tejun Heo , Sasha Levin Subject: [added to the 3.18 stable tree] libahci: save port map for forced port map Date: Thu, 19 May 2016 00:14:54 -0400 Message-Id: <1463631350-32182-5-git-send-email-sasha.levin@oracle.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1463631350-32182-1-git-send-email-sasha.levin@oracle.com> References: <1463631350-32182-1-git-send-email-sasha.levin@oracle.com> X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Srinivas Kandagatla This patch has been added to the 3.18 stable tree. If you have any objections, please let us know. -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html =============== [ Upstream commit 2fd0f46cb1b82587c7ae4a616d69057fb9bd0af7 ] In usecases where force_port_map is used saved_port_map is never set, resulting in not programming the PORTS_IMPL register as part of initial config. This patch fixes this by setting it to port_map even in case where force_port_map is used, making it more inline with other parts of the code. Fixes: 566d1827df2e ("libata: disable forced PORTS_IMPL for >= AHCI 1.3") Cc: stable@vger.kernel.org # v4.5+ Signed-off-by: Srinivas Kandagatla Acked-by: Tejun Heo Reviewed-by: Andy Gross Signed-off-by: Tejun Heo Signed-off-by: Sasha Levin --- drivers/ata/libahci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index a1d1c0e..794448c 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -467,6 +467,7 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv) dev_info(dev, "forcing port_map 0x%x -> 0x%x\n", port_map, hpriv->force_port_map); port_map = hpriv->force_port_map; + hpriv->saved_port_map = port_map; } if (hpriv->mask_port_map) {