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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 89B97C432C3 for ; Thu, 21 Nov 2019 16:54:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 61D65206CB for ; Thu, 21 Nov 2019 16:54:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574355243; bh=U//DMVp98yPH8p7vkS8DG0VecnLBLi0eUqdzTWKCIus=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=R7L36+g/pXDlKXJGQb9IMM8V9CPEqUrcu/k5vlnnwzZgwWuiA92/tDIiHmIIsz0nT cESSoi81VkbVP+0PGPNZVnDJUj5TqQT/DW8NBPfP4QmNS4R2pLPm7L+RRZs0fI+Hy3 2NqP3lPtzv6iO3q/APaOaDNtOcEpDmY/ojZGI+04= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727118AbfKUQx7 (ORCPT ); Thu, 21 Nov 2019 11:53:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:51920 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726379AbfKUQx6 (ORCPT ); Thu, 21 Nov 2019 11:53:58 -0500 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D73BF20658; Thu, 21 Nov 2019 16:53:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574355237; bh=U//DMVp98yPH8p7vkS8DG0VecnLBLi0eUqdzTWKCIus=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nOqy6YqNYkxCxubuh9LZRljCgNKNxAsSy1UZanVKcKNTQ0A+tl9OqDhWF1GMUi4VE qCPF4LWenOgvvV3Mv9FVQsp/jUSvU93wKcKVK4AdA5iMcZwWJuJ7nmsVzYvhYO3Wiz XIGuZedbQKcuRhdrbEVbqndrWgGFUa7vtiqpAiXE= Date: Thu, 21 Nov 2019 16:53:48 +0000 From: Will Deacon To: Christoph Hellwig Cc: Robin Murphy , Nicolas Saenz Julienne , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Bjorn Helgaas , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Jens Axboe , Joerg Roedel , Rob Herring , Frank Rowand , Marek Szyprowski , Ralf Baechle , Paul Burton , James Hogan , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , x86@kernel.org, "Rafael J. Wysocki" , Len Brown , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ide@vger.kernel.org, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, Catalin Marinas Subject: Re: [PATCH v2] dma-mapping: treat dev->bus_dma_mask as a DMA limit Message-ID: <20191121165348.GC4905@willie-the-truck> References: <20191121092646.8449-1-nsaenzjulienne@suse.de> <20191121152457.GA525@lst.de> <20191121152650.GA651@lst.de> <70359d2a-10c6-09c7-a857-805085affb0a@arm.com> <20191121160217.GA1583@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191121160217.GA1583@lst.de> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org On Thu, Nov 21, 2019 at 05:02:17PM +0100, Christoph Hellwig wrote: > On Thu, Nov 21, 2019 at 03:55:39PM +0000, Robin Murphy wrote: > > Hmm, there's no functional dependency though, is there? AFAICS it's > > essentially just a context conflict. Is it worth simply dropping (or > > postponing) the local renaming in __dma_direct_optimal_gfp_mask(), or > > perhaps even cross-merging arm64/for-next/zone-dma into dma/for-next? > > I would have no problem with pulling it in. I'd kinda hate creating > the conflict, though. So if the arm64 maintainers are fine with it > I'll pull it in, especially if I get an ACK from Robin. Please go ahead and pull in our for-next/zone-dma branch if you need it. We're not going to rebase it, and I suspect we won't even be queueing anything else there at this stage in the game. Cheers, Will