From mboxrd@z Thu Jan 1 00:00:00 1970 From: yakui_zhao Subject: Re: [PATCH]: ACPI: Skip the power state check in power transition Date: Thu, 14 May 2009 09:47:39 +0800 Message-ID: <1242265659.3773.428.camel@localhost.localdomain> References: <1242106060.3773.216.camel@localhost.localdomain> <200905120857.40058.bjorn.helgaas@hp.com> <1242184384.3773.241.camel@localhost.localdomain> <20090513130803.GA27522@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com ([134.134.136.24]:57459 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754677AbZENBpQ (ORCPT ); Wed, 13 May 2009 21:45:16 -0400 In-Reply-To: <20090513130803.GA27522@srcf.ucam.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: Bjorn Helgaas , "lenb@kernel.org" , "linux-acpi@vger.kernel.org" On Wed, 2009-05-13 at 21:08 +0800, Matthew Garrett wrote: > The default behaviour should be to be compatible with Windows, > regardless of what the spec says. There's an argument for providing a > strict interpretation of the spec for testing purposes, but I don't > see > any reason for it to be split up into dozens of individual kernel > parameters The ACPI 1.0 spec is followed by windows XP. And the power state is not checked in power transition under windows XP. But we don't know whether it is still skipped on the new version windows.(For example: Windows 7). If the module param is removed, we must delete the source code related with power state check. And if the power state is checked in power transition on windows 7, what we should do? It is not reasonable to add them again. Maybe it is better to determine whether the power state check is skipped in power transition. Thanks.