Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760415Ab0G3TJ7 (ORCPT ); Fri, 30 Jul 2010 15:09:59 -0400 Received: from kroah.org ([198.145.64.141]:51499 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757190Ab0G3RS0 (ORCPT ); Fri, 30 Jul 2010 13:18:26 -0400 X-Mailbox-Line: From gregkh@clark.site Fri Jul 30 10:15:03 2010 Message-Id: <20100730171503.923738937@clark.site> User-Agent: quilt/0.48-11.2 Date: Fri, 30 Jul 2010 10:14:35 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, "Darrick J. Wong" , "H. Peter Anvin" Subject: [047/165] x86, Calgary: Limit the max PHB number to 256 In-Reply-To: <20100730171550.GA1299@kroah.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1549 Lines: 48 2.6.32-stable review patch. If anyone has any objections, please let us know. ------------------ From: Darrick J. Wong commit d596043d71ff0d7b3d0bead19b1d68c55f003093 upstream. The x3950 family can have as many as 256 PCI buses in a single system, so change the limits to the maximum. Since there can only be 256 PCI buses in one domain, we no longer need the BUG_ON check. Signed-off-by: Darrick J. Wong LKML-Reference: <20100701004519.GQ15515@tux1.beaverton.ibm.com> Signed-off-by: H. Peter Anvin Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/pci-calgary_64.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -109,7 +109,7 @@ int use_calgary __read_mostly = 0; * x3950 (PCIE): 8 chassis, 32 PHBs per chassis = 256 * x3950 (PCIX): 8 chassis, 16 PHBs per chassis = 128 */ -#define MAX_PHB_BUS_NUM 384 +#define MAX_PHB_BUS_NUM 256 #define PHBS_PER_CALGARY 4 @@ -1058,8 +1058,6 @@ static int __init calgary_init_one(struc struct iommu_table *tbl; int ret; - BUG_ON(dev->bus->number >= MAX_PHB_BUS_NUM); - bbar = busno_to_bbar(dev->bus->number); ret = calgary_setup_tar(dev, bbar); if (ret) -- 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/