Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751709AbaBRXPU (ORCPT ); Tue, 18 Feb 2014 18:15:20 -0500 Received: from mail-bn1blp0183.outbound.protection.outlook.com ([207.46.163.183]:47095 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754340AbaBRXPN (ORCPT ); Tue, 18 Feb 2014 18:15:13 -0500 From: Matthew Garrett To: "rjw@rjwysocki.net" CC: "lenb@kernel.org" , "linux-kernel@vger.kernel.org" , "minyard@acm.org" , "linux-acpi@vger.kernel.org" Subject: Re: [PATCH V2] Change ACPI IPMI support to "default y" Thread-Topic: [PATCH V2] Change ACPI IPMI support to "default y" Thread-Index: AQHPLMZ9xGM3QUTlOk+rIS3zgvGkBZq7qAMA///89oA= Date: Tue, 18 Feb 2014 23:15:08 +0000 Message-ID: <1392765307.3488.1.camel@x230.lan> References: <1392740909-2079-1-git-send-email-matthew.garrett@nebula.com> <1511662.Ly2fOjCGKz@vostro.rjw.lan> In-Reply-To: <1511662.Ly2fOjCGKz@vostro.rjw.lan> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [2001:470:1f07:1371:6267:20ff:fec3:2318] x-forefront-prvs: 0126A32F74 x-forefront-antispam-report: SFV:NSPM;SFS:(10009001)(6009001)(24454002)(51704005)(189002)(199002)(377454003)(377424004)(83072002)(81342001)(51856001)(74706001)(76796001)(19580395003)(83322001)(80022001)(94946001)(76786001)(19580405001)(90146001)(74366001)(85852003)(81542001)(74876001)(56776001)(54356001)(53806001)(94316002)(74502001)(76482001)(47446002)(46102001)(81816001)(81686001)(74662001)(59766001)(56816005)(77982001)(65816001)(87936001)(49866001)(63696002)(80976001)(77096001)(93136001)(93516002)(92566001)(36756003)(47736001)(69226001)(33646001)(4396001)(31966008)(95666001)(50986001)(2656002)(54316002)(95416001)(85306002)(86362001)(47976001)(87266001)(92726001)(79102001)(3826001)(217873001);DIR:OUT;SFP:1101;SCL:1;SRVR:BN1PR05MB424;H:BN1PR05MB423.namprd05.prod.outlook.com;CLIP:2001:470:1f07:1371:6267:20ff:fec3:2318;FPR:F0FEF1A3.2E0715E9.EBF4B9BE.88E5E03C.201CB;PTR:InfoNoRecords;MX:1;A:1;LANG:en; Content-Type: text/plain; charset="utf-8" Content-ID: MIME-Version: 1.0 X-OriginatorOrg: nebula.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id s1INFVwO032572 On Wed, 2014-02-19 at 00:26 +0100, Rafael J. Wysocki wrote: > On Tuesday, February 18, 2014 11:28:29 AM Matthew Garrett wrote: > > > > The ACPI IPMI driver implements IPMI operation region support for the ACPI > > core. Systems that declare ACPI operation regions may reference them at any > > time, including during kernel initialisation. These accesses will fail > > unless the ACPI IPMI driver is present, and undesirable system behaviour > > may result. Set the default to Y in order to encourage distributions and > > users to configure kernels to avoid awkward surprises. > > Do you have any examples of problems caused by that or is this just theoretical > at the moment? For example, if you load the ACPI power meter driver before you've installed the ACPI IPMI driver you'll typically get failures (most vendors implement it via IPMI). -- Matthew Garrett ????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?