From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161432AbcFMShg (ORCPT ); Mon, 13 Jun 2016 14:37:36 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:43446 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753607AbcFMSh1 (ORCPT ); Mon, 13 Jun 2016 14:37:27 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Srinivas Kandagatla" , "Tejun Heo" , "Andy Gross" Date: Mon, 13 Jun 2016 19:36:37 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 010/114] libahci: save port map for forced port map In-Reply-To: X-SA-Exim-Connect-IP: 2a02:8011:400e:2:6f00:88c8:c921:d332 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.36-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Srinivas Kandagatla commit 2fd0f46cb1b82587c7ae4a616d69057fb9bd0af7 upstream. 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") Signed-off-by: Srinivas Kandagatla Acked-by: Tejun Heo Reviewed-by: Andy Gross Signed-off-by: Tejun Heo [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings --- drivers/ata/libahci.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -472,6 +472,7 @@ void ahci_save_initial_config(struct dev dev_info(dev, "forcing port_map 0x%x -> 0x%x\n", port_map, force_port_map); port_map = force_port_map; + hpriv->saved_port_map = port_map; } if (mask_port_map) {