From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752513AbYE2LB1 (ORCPT ); Thu, 29 May 2008 07:01:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751070AbYE2LBR (ORCPT ); Thu, 29 May 2008 07:01:17 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:56094 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750974AbYE2LBQ convert rfc822-to-8bit (ORCPT ); Thu, 29 May 2008 07:01:16 -0400 Date: Thu, 29 May 2008 11:46:34 +0100 From: Alan Cox To: Arnd Bergmann Cc: benh@kernel.crashing.org, Linus Torvalds , David Miller , linux-arch@vger.kernel.org, scottwood@freescale.com, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org, tpiepho@freescale.com Subject: Re: MMIO and gcc re-ordering issue Message-ID: <20080529114634.048ea9a0@core> In-Reply-To: <200805290910.07207.arnd@arndb.de> References: <1211852026.3286.36.camel@pasglop> <1211926779.3286.104.camel@pasglop> <200805290910.07207.arnd@arndb.de> X-Mailer: Claws Mail 3.3.1 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > It's not exactly a well-established interface. Only five architectures > define these functions, and there is not a single user in the kernel > source outside of these architecture's io.h files. That is because the drivers using them had them removed (eg I²O) - mostly because "it didn't compile on power pc" 8( Alan