From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753385Ab3AaXOP (ORCPT ); Thu, 31 Jan 2013 18:14:15 -0500 Received: from terminus.zytor.com ([198.137.202.10]:45612 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751628Ab3AaXOM (ORCPT ); Thu, 31 Jan 2013 18:14:12 -0500 Message-ID: <510AFAAC.8020609@zytor.com> Date: Thu, 31 Jan 2013 15:13:48 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 To: Rolf Eike Beer CC: James Bottomley , Helge Deller , linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, Ian Kent , autofs@vger.kernel.org Subject: Re: [PATCH] parisc: unbreak automounter support on 64-bit kernel with 32-bit userspace References: <20130131200110.GA6032@p100.box> <1359668524.2468.12.camel@dabdike> <510AE623.7000609@zytor.com> <1470501.uiZyX6kBKo@donald.sf-tec.de> In-Reply-To: <1470501.uiZyX6kBKo@donald.sf-tec.de> X-Enigmail-Version: 1.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/31/2013 02:10 PM, Rolf Eike Beer wrote: > H. Peter Anvin wrote: >> On 01/31/2013 01:42 PM, James Bottomley wrote: >>> On Thu, 2013-01-31 at 13:29 -0800, H. Peter Anvin wrote: >>>> On 01/31/2013 12:26 PM, James Bottomley wrote: >>>>> [adding autofs list and maintainer for their perusal and >>>>> ack, although this is an obvious fix to me >>>>> >>>>> James] >>>> >>>> The #if list probably should be inverted, and only specific >>>> platforms should have unsigned long... >>> >>> The whitelist is 64 bit only platforms, like ia64, isn't it? >>> So yes, they're far less numerous. >> >> Correct. It is basically the 64-bit platforms without any >> 32-bit userspace, like Alpha and IA64. > > Arm64? Should this be a CONFIG_ARCH_CAN_HAVE_32BIT_USERSPACE that > would cover this? And may e.g. be used to remove compat_ioctl on > those archs, too? > compat_ioctl should be CONFIG_COMPAT. -hpa