Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750874AbWEPASx (ORCPT ); Mon, 15 May 2006 20:18:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750875AbWEPASx (ORCPT ); Mon, 15 May 2006 20:18:53 -0400 Received: from smtp.osdl.org ([65.172.181.4]:45449 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750871AbWEPASx (ORCPT ); Mon, 15 May 2006 20:18:53 -0400 Date: Mon, 15 May 2006 17:18:28 -0700 (PDT) From: Linus Torvalds To: Alan Cox cc: Russell King , Andrew Morton , Andreas Mohr , florin@iucha.net, linux-kernel@vger.kernel.org, linux@dominikbrodowski.net Subject: Re: pcmcia oops on 2.6.17-rc[12] In-Reply-To: <1147738680.26686.231.camel@localhost.localdomain> Message-ID: References: <20060423192251.GD8896@iucha.net> <20060423150206.546b7483.akpm@osdl.org> <20060508145609.GA3983@rhlx01.fht-esslingen.de> <20060508084301.5025b25d.akpm@osdl.org> <20060508163453.GB19040@flint.arm.linux.org.uk> <1147730828.26686.165.camel@localhost.localdomain> <1147734026.26686.200.camel@localhost.localdomain> <1147738680.26686.231.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1214 Lines: 32 On Tue, 16 May 2006, Alan Cox wrote: > > The reason they do it is also however because the ISA bus IRQ allocation > scheme and IRQ probing scheme they use for auto detection relies upon > other users marking the IRQ as exclusively used. The same is true for > things like setserial and ISA ports. The irq auto-detection should work with shared interrupts, but yes, it won't _detect_ them if they are already in use (but it's ok with them becoming shared later). That said, true ISA cards obviously won't ever have a shared irq, in any normal circumstances. Which is one reason why I think it would be silly to force such a driver to use a SA_SHIRQ flag, and would prefer to do it the other way instead (ie make drivers that fundamentally _require_ - as opposed to "in practice use" - an exclusive interrupt say so). > PCMCIA doesn't seem to have too many offenders, and the number of > drivers is low so it won't take long to go over them. Yeah. 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/