Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 12 Nov 2002 19:08:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 12 Nov 2002 19:08:33 -0500 Received: from holomorphy.com ([66.224.33.161]:44733 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Tue, 12 Nov 2002 19:08:32 -0500 Date: Tue, 12 Nov 2002 16:12:46 -0800 From: William Lee Irwin III To: Greg KH Cc: "Martin J. Bligh" , Matthew Dobson , linux-kernel@vger.kernel.org, hohnbaum@us.ibm.com, mochel@osdl.org Subject: Re: [0/4] NUMA-Q: remove PCI bus number mangling Message-ID: <20021113001246.GC23425@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Greg KH , "Martin J. Bligh" , Matthew Dobson , linux-kernel@vger.kernel.org, hohnbaum@us.ibm.com, mochel@osdl.org References: <20021112205241.GS23425@holomorphy.com> <3DD172B8.8040802@us.ibm.com> <20021112213504.GV23425@holomorphy.com> <20021112213906.GW23425@holomorphy.com> <177250000.1037141189@flay> <20021112215305.GZ23425@holomorphy.com> <179150000.1037145229@flay> <20021112225937.GA23425@holomorphy.com> <20021112235824.GG22031@holomorphy.com> <20021113000435.GE32274@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20021113000435.GE32274@kroah.com> User-Agent: Mutt/1.3.25i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1034 Lines: 27 On Tue, Nov 12, 2002 at 03:58:24PM -0800, William Lee Irwin III wrote: >> Okay, an attempt to remedy this world-breaking braindamage with the >> fewest lines of code: >> This alters PCI bus number "clash" detection to compare ->sysdata in >> addition to the numbers. The bus number is not a unique identifier. On Tue, Nov 12, 2002 at 04:04:35PM -0800, Greg KH wrote: > Um, why not? > And what would /sys/bus/pci/devices look like if you allow the same > identifiers for different devices? :) > thanks, > greg k-h (1) incorrect semantics: multiple domains/segments exist, and the bus number is not qualified with such (2) insufficient cardinality: even in the presence of remapping schemes the bus space is limited to less than the number of buses requiring unique identifiers Bill - 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/