From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755792Ab0JNRpI (ORCPT ); Thu, 14 Oct 2010 13:45:08 -0400 Received: from terminus.zytor.com ([198.137.202.10]:58024 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754010Ab0JNRpH (ORCPT ); Thu, 14 Oct 2010 13:45:07 -0400 Message-ID: <4CB7418C.7010505@zytor.com> Date: Thu, 14 Oct 2010 10:44:44 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100921 Fedora/3.1.4-1.fc13 Thunderbird/3.1.4 MIME-Version: 1.0 To: Pekka Enberg CC: David Rientjes , Ingo Molnar , Thomas Gleixner , Casey Dahlin , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [patch] x86: allow ZONE_DMA to be configurable References: <4CB64D8F.9080800@zytor.com> <4CB65262.3070507@zytor.com> <4CB688F4.9040706@zytor.com> <4CB7240E.9000905@zytor.com> In-Reply-To: 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 10/14/2010 09:00 AM, Pekka Enberg wrote: > On 10/13/2010 09:46 PM, David Rientjes wrote: >>> I'm not running a CONFIG_EMBEDDED kernel and I'm pretty sure Casey isn't >>> either, so we'd still need to carry our own patches to change the Kconfig >>> bool line anyway. >>> >>> I'm suprised that we can't allow users who definitively know that they >>> have no hardware limitations the ability to disable ZONE_DMA. Would a >>> strong caution in the Kconfig "help" text suffice or will you not be >>> convinced? > > On Thu, Oct 14, 2010 at 6:38 PM, H. Peter Anvin wrote: >> CONFIG_EMBEDDED *is* "I am a user who (think I) know what I'm doing". >> That is *what it is* and *all it is*. > > Yup. The naming is quite unfortunate, though. Can we change it to > something else? > Funny, this seems to come up repeatedly ;) -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.