From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755338AbZGUTPQ (ORCPT ); Tue, 21 Jul 2009 15:15:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754461AbZGUTPP (ORCPT ); Tue, 21 Jul 2009 15:15:15 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:43472 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752398AbZGUTPO (ORCPT ); Tue, 21 Jul 2009 15:15:14 -0400 Date: Tue, 21 Jul 2009 12:15:19 -0700 (PDT) Message-Id: <20090721.121519.239732131.davem@davemloft.net> To: joerg.roedel@amd.com Cc: fujita.tomonori@lab.ntt.co.jp, reif@earthlink.net, mingo@elte.hu, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, tony.luck@intel.com, akpm@linux-foundation.org Subject: Re: [PATCH v2 0/8] sparc: use asm-generic/dma-mapping-common.h and pci-dma-compat.h From: David Miller In-Reply-To: <20090721160538.GL25756@amd.com> References: <20090714092354.GL19087@amd.com> <20090714.131224.205307048.davem@davemloft.net> <20090721160538.GL25756@amd.com> X-Mailer: Mew version 6.2.51 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel Date: Tue, 21 Jul 2009 18:05:38 +0200 > Hmm these checks sound specific and hard to maintain. I think its best > to give architectures the option whether to enable this check or not. No matter how the arch works in this area, there should be some kind of sanity check. So, it probably makes sense to allow an arch to override the validation function rather than turn the test completely off.