From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:42554 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753118AbdBMNEx (ORCPT ); Mon, 13 Feb 2017 08:04:53 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Arkadiusz Miskiewicz , Dave Carroll , Raghava Aditya Renukunta , "Martin K. Petersen" Subject: [PATCH 4.9 41/60] scsi: aacraid: Fix INTx/MSI-x issue with older controllers Date: Mon, 13 Feb 2017 05:04:13 -0800 Message-Id: <20170213130338.827544868@linuxfoundation.org> In-Reply-To: <20170213130333.057515084@linuxfoundation.org> References: <20170213130333.057515084@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dave Carroll commit 8af8e1c22f9994bb1849c01d66c24fe23f9bc9a0 upstream. commit 78cbccd3bd68 ("aacraid: Fix for KDUMP driver hang") caused a problem on older controllers which do not support MSI-x (namely ASR3405,ASR3805). This patch conditionalizes the previous patch to controllers which support MSI-x Fixes: 78cbccd3bd68 ("aacraid: Fix for KDUMP driver hang") Reported-by: Arkadiusz Miskiewicz Signed-off-by: Dave Carroll Reviewed-by: Raghava Aditya Renukunta Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/aacraid/comminit.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -50,9 +50,13 @@ struct aac_common aac_config = { static inline int aac_is_msix_mode(struct aac_dev *dev) { - u32 status; + u32 status = 0; - status = src_readl(dev, MUnit.OMR); + if (dev->pdev->device == PMC_DEVICE_S6 || + dev->pdev->device == PMC_DEVICE_S7 || + dev->pdev->device == PMC_DEVICE_S8) { + status = src_readl(dev, MUnit.OMR); + } return (status & AAC_INT_MODE_MSIX); }