From patchwork Tue Dec 22 23:40:40 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 69393 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.2) with ESMTP id nBMNjZjK022285 for ; Tue, 22 Dec 2009 23:45:35 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752764AbZLVXmN (ORCPT ); Tue, 22 Dec 2009 18:42:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754202AbZLVXmM (ORCPT ); Tue, 22 Dec 2009 18:42:12 -0500 Received: from sca-es-mail-2.Sun.COM ([192.18.43.133]:58149 "EHLO sca-es-mail-2.sun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751711AbZLVXmF (ORCPT ); Tue, 22 Dec 2009 18:42:05 -0500 Received: from fe-sfbay-09.sun.com ([192.18.43.129]) by sca-es-mail-2.sun.com (8.13.7+Sun/8.12.9) with ESMTP id nBMNg3Ao024622; Tue, 22 Dec 2009 15:42:03 -0800 (PST) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: TEXT/PLAIN Received: from conversion-daemon.fe-sfbay-09.sun.com by fe-sfbay-09.sun.com (Sun Java(tm) System Messaging Server 7u2-7.04 64bit (built Jul 2 2009)) id <0KV200600V2YVK00@fe-sfbay-09.sun.com>; Tue, 22 Dec 2009 15:42:02 -0800 (PST) Received: from localhost.localdomain ([unknown] [10.6.76.26]) by fe-sfbay-09.sun.com (Sun Java(tm) System Messaging Server 7u2-7.04 64bit (built Jul 2 2009)) with ESMTPSA id <0KV20097EV5WE470@fe-sfbay-09.sun.com>; Tue, 22 Dec 2009 15:42:02 -0800 (PST) Date: Tue, 22 Dec 2009 15:40:40 -0800 From: Yinghai Lu Subject: [PATCH 02/25] x86/pci: intel ioh bus num reg accessing fix In-reply-to: <1261525263-13763-1-git-send-email-yinghai@kernel.org> To: Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , Andrew Morton , Jesse Barnes , Christoph Lameter Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Yinghai Lu Message-id: <1261525263-13763-3-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.6.0.2 References: <1261525263-13763-1-git-send-email-yinghai@kernel.org> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org diff --git a/arch/x86/pci/intel_bus.c b/arch/x86/pci/intel_bus.c index b7a55dc..baf283a 100644 --- a/arch/x86/pci/intel_bus.c +++ b/arch/x86/pci/intel_bus.c @@ -49,6 +49,10 @@ static void __devinit pci_root_bus_res(struct pci_dev *dev) u64 mmioh_base, mmioh_end; int bus_base, bus_end; + /* some sys doesn't get mmconf enabled */ + if (dev->cfg_size < 0x200) + return; + if (pci_root_num >= PCI_ROOT_NR) { printk(KERN_DEBUG "intel_bus.c: PCI_ROOT_NR is too small\n"); return;