Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966748AbWKOKbH (ORCPT ); Wed, 15 Nov 2006 05:31:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S966752AbWKOKbH (ORCPT ); Wed, 15 Nov 2006 05:31:07 -0500 Received: from mx2.suse.de ([195.135.220.15]:34277 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S966748AbWKOKbG (ORCPT ); Wed, 15 Nov 2006 05:31:06 -0500 Date: Wed, 15 Nov 2006 11:31:04 +0100 Message-ID: From: Takashi Iwai To: David Miller Cc: torvalds@osdl.org, jeff@garzik.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ALSA: hda-intel - Disable MSI support by default In-Reply-To: <20061114.192117.112621278.davem@davemloft.net> References: <20061114.190036.30187059.davem@davemloft.net> <20061114.192117.112621278.davem@davemloft.net> User-Agent: Wanderlust/2.12.0 (Your Wildest Dreams) SEMI/1.14.6 (Maruoka) FLIM/1.14.7 (=?ISO-8859-4?Q?Sanj=F2?=) APEL/10.6 MULE XEmacs/21.5 (beta25) (eggplant) (+CVS-20060326) (i386-suse-linux) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1181 Lines: 34 At Tue, 14 Nov 2006 19:21:17 -0800 (PST), David Miller wrote: > > From: Linus Torvalds > Date: Tue, 14 Nov 2006 19:10:42 -0800 (PST) > > > Yours was still an example of "nice". And it had absolutely nothing > > to do with the _PROBLEM_. > > Understood. > > BTW, some drivers have taken the approch to add MSI self-tests > inside of the driver to ensure correct option of MSI on a given > machine. There's a lot of resistence to that, the reasons for > which I grok fully, but I'm not sure other suggestions such as > black lists are any better. The snd-hda-intel driver has a test of MSI, but it seems not working on every machine. It caused non-cared interrupts and the kernel disabled that irq. > Given current experience maybe white-lists are in fact the way > to go. Could it be whitelisted in the PCI driver side? I don't think it's good to have a huge white/blacklist in each device driver. Takashi - 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/