From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30193C76194 for ; Thu, 25 Jul 2019 05:25:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1291C2190F for ; Thu, 25 Jul 2019 05:25:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390606AbfGYFZd (ORCPT ); Thu, 25 Jul 2019 01:25:33 -0400 Received: from verein.lst.de ([213.95.11.211]:58041 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390562AbfGYFZd (ORCPT ); Thu, 25 Jul 2019 01:25:33 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id E280168B20; Thu, 25 Jul 2019 07:25:29 +0200 (CEST) Date: Thu, 25 Jul 2019 07:25:29 +0200 From: Christoph Hellwig To: "Michael S. Tsirkin" Cc: Christoph Hellwig , Robin Murphy , Eric Auger , eric.auger.pro@gmail.com, m.szyprowski@samsung.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] virtio/virtio_ring: Fix the dma_max_mapping_size call Message-ID: <20190725052529.GA24355@lst.de> References: <20190722145509.1284-1-eric.auger@redhat.com> <20190722145509.1284-3-eric.auger@redhat.com> <20190723153851.GE720@lst.de> <20190723114750-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190723114750-mutt-send-email-mst@kernel.org> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 24, 2019 at 06:10:53PM -0400, Michael S. Tsirkin wrote: > Christoph - would a documented API wrapping dma_mask make sense? > With the documentation explaining how users must > desist from using DMA APIs if that returns false ... We have some bigger changes in this are planned, including turning dma_mask into a scalar instead of a pointer, please stay tuned.