Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753404Ab3IENLz (ORCPT ); Thu, 5 Sep 2013 09:11:55 -0400 Received: from mail-qe0-f42.google.com ([209.85.128.42]:33357 "EHLO mail-qe0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751941Ab3IENLw (ORCPT ); Thu, 5 Sep 2013 09:11:52 -0400 Date: Thu, 5 Sep 2013 09:11:49 -0400 From: Tejun Heo To: Alexander Gordeev Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-pci@vger.kernel.org, linux-ide@vger.kernel.org, Ingo Molnar , Joerg Roedel , Jan Beulich , Bjorn Helgaas Subject: Re: [PATCH v2 5/6] AHCI: Check MRSM bit when multiple MSIs enabled Message-ID: <20130905131149.GC26314@htj.dyndns.org> References: <4bc31d6ccf3f84399b977fe8ed4fe77aadfa1c79.1378383792.git.agordeev@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4bc31d6ccf3f84399b977fe8ed4fe77aadfa1c79.1378383792.git.agordeev@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 762 Lines: 22 On Thu, Sep 05, 2013 at 02:54:17PM +0200, Alexander Gordeev wrote: > Do not trust the hardware and always check if MSI > Revert to Single Message mode was enforced. Fall > back to the single MSI mode in case it did. Not > doing so might screw up the interrupt handling. > > Signed-off-by: Alexander Gordeev Acked-by: Tejun Heo The patch should probably be re-sequenced to the head of the series and cc stable@vger.kernel.org. Not checking MRSM is scary. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/