Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753747AbXLVSHU (ORCPT ); Sat, 22 Dec 2007 13:07:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752572AbXLVSHH (ORCPT ); Sat, 22 Dec 2007 13:07:07 -0500 Received: from smtp2.linux-foundation.org ([207.189.120.14]:33787 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752416AbXLVSHG (ORCPT ); Sat, 22 Dec 2007 13:07:06 -0500 Date: Sat, 22 Dec 2007 10:06:38 -0800 (PST) From: Linus Torvalds To: Arjan van de Ven cc: Jeff Garzik , linux-kernel@vger.kernel.org, gregkh@suse.de, linux-pci@atrey.karlin.mff.cuni.cz Subject: Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue In-Reply-To: <20071222064719.73fdd9a4@laptopd505.fenrus.org> Message-ID: References: <20071222043139.0cd59804@laptopd505.fenrus.org> <476D1D16.5090703@garzik.org> <20071222064719.73fdd9a4@laptopd505.fenrus.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1603 Lines: 39 On Sat, 22 Dec 2007, Arjan van de Ven wrote: > On Sat, 22 Dec 2007 09:20:06 -0500 > Jeff Garzik wrote: > > > > Yuck. And, Linus is just being silly. Wait a year then turn on > > MMCONFIG :) It took PCI MSI a while to mature, but is finally > > getting there. That _really_ doesn't work. Old machines don't go away. We can't just say "wait a year and turn on MMCONFIG", because all the broken machines WILL STILL EXIST. > Do you hate the name or the concept? I'm certainly open for a better name.... Just make it so. The name is fine, the concept is unavoidable. The people who complain are whiners that haven't ever had to deal with the fact that there are broken machines around. For example, right now Jeff never sees the problem, because when MMCONFIG doesn't work, it's never his problem - nothing in the machine works. But if he has to add a "pci_enable_mmconfig()" to the drivers he maintains, he sees it as a _new_ problem, so he obviously thinks it's stupid: he was never impacted by the issues it fixed! So it's natural for Jeff to not like it, but that doesn't make Jeff right in this case. It just means that Jeff never had to worry about it before, because as long as MMCONFIG wasn't per-driver, the problems it caused were never *his* problems. But that doesn't make them less of a problem. Linus -- 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/