Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp1373902imm; Thu, 12 Jul 2018 00:19:51 -0700 (PDT) X-Google-Smtp-Source: AAOMgpddYQ2mien019UWp16fB0SQRm3Cq7aKN99XbwU98efZEC9sNGa0HxPy/Dnk45pgbcEAvfzW X-Received: by 2002:a17:902:9883:: with SMTP id s3-v6mr1068323plp.194.1531379991561; Thu, 12 Jul 2018 00:19:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531379991; cv=none; d=google.com; s=arc-20160816; b=Y3Zq9kVHdU1psufYUYbjE6nMeSaLm2AAI6cRXlkzpsdbwTb5yQZKsSV3fG34yRCjOz hXoOj11IbkYF+qSLM62D8hURGMN11gZqB95Gnisgh3knAObTyO/KgsRaoMhfeuOLKYsc 4o0UhSxZLCZqYAm/dZKnpIUmJwwpmAa9YFydKMZXo7kmRVotShDTHylConw2J/IREvju ZADcLjwKNJ29BbwB1rUH9+W0s3iERxfOFZu1/4Ft/gGfUvmnKhHgCuUFKwiLUDostxFm kw+ewpt2DQNlLpZeQduPtoIElJhAgG0G+EnrUzIC8uAGnkE+vAfzhv7zyaQhDBvAV3hT Ci2A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=JGkaJwcbnkp8OMSESx5lnm1qNP9Z+9rTD0YfQQLa56M=; b=bHtf8OsJBZj3iqaUDDJZLWiMVQjM4XM9UI2nRuGxVWVdZhrk3oLRYfEswURafe3Gvf 6Hfi4rX2ZnP/pFiFCcePAFV9eA8AvhWyBd6ZQhkOdXY7AMm12AypdDkfRUY5X3Oy9LUO D8MDz7VX7p7h2JPrnHGyQiOtCvZ62X0/6q7B72+zPRe5GcvXhcHNxjXq0eLlEUaCh/EI 68/VhyzRWR9p4qN1OdxxxZubO9gcyKDwAS5MfGUfq58OfxfuuSSXsbnPKEY+fVGl2EgA scBmkyediAtCevtvB0sSD9fJHzuTbUZeRUeuJE0pDZ1y1xKTNUunOKvpB4Ph4Petb522 CKiA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id b74-v6si22788187pfd.273.2018.07.12.00.19.35; Thu, 12 Jul 2018 00:19:51 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726597AbeGLH1S (ORCPT + 99 others); Thu, 12 Jul 2018 03:27:18 -0400 Received: from verein.lst.de ([213.95.11.211]:57047 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725811AbeGLH1S (ORCPT ); Thu, 12 Jul 2018 03:27:18 -0400 Received: by newverein.lst.de (Postfix, from userid 2407) id 5B03B6FB7B; Thu, 12 Jul 2018 09:20:51 +0200 (CEST) Date: Thu, 12 Jul 2018 09:20:51 +0200 From: Christoph Hellwig To: Robin Murphy Cc: Christoph Hellwig , m.szyprowski@samsung.com, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, lorenzo.pieralisi@arm.com, hanjun.guo@linaro.org, sudeep.holla@arm.com, robh+dt@kernel.org, frowand.list@gmail.com, gregkh@linuxfoundation.org, joro@8bytes.org, x86@kernel.org Subject: Re: [RFC PATCH 1/4] dma-mapping: Generalise dma_32bit_limit flag Message-ID: <20180712072051.GC15624@lst.de> References: <20180710180433.GB26285@lst.de> <868cead9-88a7-e58d-3452-a78e19be5f47@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <868cead9-88a7-e58d-3452-a78e19be5f47@arm.com> 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 11, 2018 at 05:56:40PM +0100, Robin Murphy wrote: > Indeed, once we've found an approach that everyone's happy with we can have > a more thorough audit of exactly where else it needs to be applied. FWIW > I'm not aware of any 32-bit Arm systems affected by this*, but if they do > exist then at least there's no risk of regression since they've always been > busted. Ok, great. I just assumed arm might be affected due to the fact that it currently parses dma-ranges DT properties.