From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754426Ab0IVWxt (ORCPT ); Wed, 22 Sep 2010 18:53:49 -0400 Received: from mga01.intel.com ([192.55.52.88]:58617 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754240Ab0IVWxr (ORCPT ); Wed, 22 Sep 2010 18:53:47 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.57,220,1283756400"; d="scan'208";a="609475314" Message-ID: <4C9A88F3.7080802@linux.intel.com> Date: Wed, 22 Sep 2010 15:53:39 -0700 From: "H. Peter Anvin" Organization: Intel Open Source Technology Center User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100907 Fedora/3.1.3-1.fc13 Thunderbird/3.1.3 MIME-Version: 1.0 To: Bjorn Helgaas CC: Yinghai Lu , mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, simon@fire.lp0.eu, tglx@linutronix.de, linux-tip-commits@vger.kernel.org Subject: Re: [tip:x86/pci] x86, pci: Ignore any PCI BARs that match an HPET we already know about References: <20100922201547.3197.33702.stgit@bob.kio> <4C9A79BC.6020305@kernel.org> <201009221641.35871.bjorn.helgaas@hp.com> In-Reply-To: <201009221641.35871.bjorn.helgaas@hp.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/22/2010 03:41 PM, Bjorn Helgaas wrote: >> >> It seems there is some problem here: >> >> hpet_res is inserted to resource with late_initcall(). >> so if you don't touch that hpet address in bar and not put in the resource. >> kernel could allocate that address to other devices that doesn't get resource from BIOS. > > Hmm, yes, that's a problem. Let me look into it tomorrow; maybe we > can do something like setting IORESOURCE_PCI_FIXED instead of just > clearing out the resource. > > Bjorn OK, dropping the patch for now. -hpa