Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933234AbYBNU76 (ORCPT ); Thu, 14 Feb 2008 15:59:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757145AbYBNU7r (ORCPT ); Thu, 14 Feb 2008 15:59:47 -0500 Received: from g5t0007.atlanta.hp.com ([15.192.0.44]:8273 "EHLO g5t0007.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756405AbYBNU7q (ORCPT ); Thu, 14 Feb 2008 15:59:46 -0500 From: Bjorn Helgaas To: Linus Torvalds Subject: Re: a7839e96 (PNP: increase max resources) breaks my ALSA intel8x0 sound card Date: Thu, 14 Feb 2008 14:01:24 -0700 User-Agent: KMail/1.9.6 (enterprise 0.20070907.709405) Cc: Robert Hancock , Andrew Morton , avuton@gmail.com, yakui.zhao@intel.com, shaohua.li@intel.com, trenn@suse.de, Linux Kernel Mailing List , alsa-devel@alsa-project.org References: <200802141307.59120.bjorn.helgaas@hp.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200802141401.24723.bjorn.helgaas@hp.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1218 Lines: 31 On Thursday 14 February 2008 01:26:59 pm Linus Torvalds wrote: > > On Thu, 14 Feb 2008, Bjorn Helgaas wrote: > > > On Thursday 14 February 2008 12:42:52 pm Linus Torvalds wrote: > > > > > > It *shouldn't* fail. > > > > > > Things should fail only when two different drivers have requested the same > > > region. NOT when something tells the system that a region _exists_. > > > > The sound driver doesn't fail because two different drivers have > > requested the same region; it fails because PNP told us a region > > exists, and the sound region crosses the edge of the PNP region. > > Right, and that was a bug. > > It *shouldn't* fail. The PnP resource should be inserted _after_ the > PCI region has been inserted, and _that_ should fail, since the PnP region > is crap and cannot be inserted "half-way". That means the PNP system driver has to be registered after the PCI driver. We can't guarantee that, especially if the sound driver is a module. Bjorn -- 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/