Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757766Ab0FOPdF (ORCPT ); Tue, 15 Jun 2010 11:33:05 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:34589 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753048Ab0FOPdC (ORCPT ); Tue, 15 Jun 2010 11:33:02 -0400 Date: Tue, 15 Jun 2010 16:32:56 +0100 From: Matthew Garrett To: Tomas Henzl Cc: linux-pci@vger.kernel.org, jbarnes@virtuousgeek.org, linux-kernel@vger.kernel.org, kaneshige.kenji@jp.fujitsu.com Subject: Re: [PATCH] pci: Don't enable aspm before drivers have had a chance to veto it Message-ID: <20100615153256.GA20309@srcf.ucam.org> References: <1276113907-22432-1-git-send-email-mjg@redhat.com> <4C17983F.8020405@redhat.com> <20100615151849.GA19895@srcf.ucam.org> <4C179C3E.6000702@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C179C3E.6000702@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 976 Lines: 24 On Tue, Jun 15, 2010 at 05:29:02PM +0200, Tomas Henzl wrote: > On 06/15/2010 05:18 PM, Matthew Garrett wrote: > > On Tue, Jun 15, 2010 at 05:11:59PM +0200, Tomas Henzl wrote: > > > > > >> Matthew, isn't it so that the POLICY_DEFAULT will pass the above test > >> and possibly switch the ASPM on? > >> > > Yes. We assume that the BIOS authors aren't actively malicious. > > > I originally thought your patch is about not enabling ASPM on broken > hardware (bios included) before the driver has a chance to change it. Heh. No, if the BIOS set up ASPM on the controller, it seems like it's safe to do the same. That's been the default behaviour of upstream for some time now. -- Matthew Garrett | mjg59@srcf.ucam.org -- 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/