From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753421AbeE1GIa (ORCPT ); Mon, 28 May 2018 02:08:30 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:36383 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751237AbeE1GI3 (ORCPT ); Mon, 28 May 2018 02:08:29 -0400 Date: Mon, 28 May 2018 08:08:19 +0200 (CEST) From: Thomas Gleixner To: Christoph Hellwig cc: Ingo Molnar , Tony Luck , Fenghua Yu , Greg Kroah-Hartman , x86@kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH 6/7] x86: remove the explicit nodac and allowdac option In-Reply-To: <20180525143512.1466-7-hch@lst.de> Message-ID: References: <20180525143512.1466-1-hch@lst.de> <20180525143512.1466-7-hch@lst.de> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 25 May 2018, Christoph Hellwig wrote: x86/pci-dma: ... Please > This is something drivers should decide (modulo chipset quirks like > for VIA), which as far as I can tell is how things have been handled > for the last 15 years. > > Note that we keep the usedac option for now, as it is used in the wild > to override the too generic VIA quirk. > > Signed-off-by: Christoph Hellwig Reviewed-by: Thomas Gleixner