From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King - ARM Linux Subject: Re: [PATCH] ata: Don't use NO_IRQ in pata_of_platform driver Date: Tue, 6 Dec 2011 11:03:28 +0000 Message-ID: <20111206110328.GP14542@n2100.arm.linux.org.uk> References: <1322867573.11728.22.camel@pasglop> <20111205161157.GA27550@localhost.localdomain> <20111205180253.GB29812@localhost.localdomain> <20111205192605.GD29812@localhost.localdomain> <20111206093709.GB2274@linaro.org> <20111206104654.GN14542@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Geert Uytterhoeven Cc: Dave Martin , Nicolas Pitre , Benjamin Herrenschmidt , Linus Torvalds , Anton Vorontsov , Alan Cox , Stephen Rothwell , Andrew Morton , devicetree-discuss@lists.ozlabs.org, LKML , linux-ide@vger.kernel.org, Randy Dunlap , linux-next@vger.kernel.org, Ingo Molnar , Jeff Garzik , Pawel Moll , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org On Tue, Dec 06, 2011 at 12:00:12PM +0100, Geert Uytterhoeven wrote: > On Tue, Dec 6, 2011 at 11:46, Russell King - ARM Linux > wrote: > > But.. let's make one thing clear: Alan Cox and Linus have been goin= g on > > about how IRQ0 should not be used. =A0Let's be crystal clear: even = x86 > > uses IRQ0. =A0It happens to be the PIC timer, and that gets claimed= early > > on during the x86 boot. =A0So please don't tell me that x86 avoids = IRQ0. > > It doesn't. =A0It just happens that x86 never shows IRQ0 to anythin= g but > > the i8253 PIC driver. >=20 > It's shown in /proc/interrupts due to a "bug" in show_interrupts(). > The (gmail damaged) patch below fixes this bug. So we now try to hide the fact that there _is_ an interrupt called 0 on x86 systems? Sorry, I can't that that seriously in any way.