Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754605AbZLVXmQ (ORCPT ); Tue, 22 Dec 2009 18:42:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754224AbZLVXmM (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 MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: TEXT/PLAIN 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-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1001 Lines: 31 it is above 0x100, so if mmconf is not enable, need to skip it Reported-by: Jens Axboe Signed-off-by: Yinghai Lu --- arch/x86/pci/intel_bus.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) 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; -- 1.6.0.2 -- 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/