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=-7.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham 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 DB579CA9ECF for ; Thu, 31 Oct 2019 18:33:01 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AB6652086D for ; Thu, 31 Oct 2019 18:33:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AB6652086D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 59B2FD94; Thu, 31 Oct 2019 18:33:01 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 586BBD3D for ; Thu, 31 Oct 2019 18:33:00 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id D959287B for ; Thu, 31 Oct 2019 18:32:59 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id DC3F5227A81; Thu, 31 Oct 2019 19:32:55 +0100 (CET) Date: Thu, 31 Oct 2019 19:32:55 +0100 From: Christoph Hellwig To: Catalin Marinas Subject: Re: [PATCH] dma/direct: turn ARCH_ZONE_DMA_BITS into a variable Message-ID: <20191031183255.GA10116@lst.de> References: <20191031152837.15253-1-nsaenzjulienne@suse.de> <20191031154759.GA7162@lst.de> <40d06d463c05d36968e8b64924d78f7794f8de50.camel@suse.de> <20191031155750.GA7394@lst.de> <6726a651c12d91ca22b9d8984745d90db5d507ec.camel@suse.de> <20191031165853.GA8532@lst.de> <20191031180619.GI39590@arrakis.emea.arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191031180619.GI39590@arrakis.emea.arm.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: linux-s390@vger.kernel.org, Vasily Gorbik , Benjamin Herrenschmidt , linuxppc-dev@lists.ozlabs.org, Heiko Carstens , Robin Murphy , linux-kernel@vger.kernel.org, Christian Borntraeger , iommu@lists.linux-foundation.org, Paul Mackerras , linux-arm-kernel@lists.infradead.org, Michael Ellerman , Will Deacon , Christoph Hellwig , Nicolas Saenz Julienne X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org On Thu, Oct 31, 2019 at 06:06:19PM +0000, Catalin Marinas wrote: > On Thu, Oct 31, 2019 at 05:58:53PM +0100, Christoph Hellwig wrote: > > On Thu, Oct 31, 2019 at 05:22:59PM +0100, Nicolas Saenz Julienne wrote: > > > OK, I see what you mean now. It's wrong indeed. > > > > > > The trouble is the ZONE_DMA series[1] in arm64, also due for v5.5, will be > > > affected by this patch. I don't know the right way to approach this problem > > > since depending on the merge order, this patch should be updated or the arm64 > > > ZONE_DMA series fixed. > > > > > > Maybe it's easier to just wait for v5.6. > > > > Ok, I can wait. Or the arm64 maintainers can pick up this patch if > > you want to add it to that series. > > This branch is stable (may add a fix but not I'm not rebasing it) if you > want to base this patch on top: > > https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=for-next/zone-dma > > Otherwise, with your ack, I can add it on top of the above branch (aimed > at 5.5). Please go ahead: Acked-by: Christoph Hellwig _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu