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=-2.5 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 225EBC06510 for ; Mon, 1 Jul 2019 08:48:39 +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 032092089C for ; Mon, 1 Jul 2019 08:48:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 032092089C 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 B2374713C; Mon, 1 Jul 2019 08:48:38 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id C2F9EACC for ; Mon, 1 Jul 2019 08:48:36 +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 6214570D for ; Mon, 1 Jul 2019 08:48:36 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id AC3E268B20; Mon, 1 Jul 2019 10:48:33 +0200 (CEST) Date: Mon, 1 Jul 2019 10:48:33 +0200 From: Christoph Hellwig To: Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Ian Abbott , H Hartley Sweeten Subject: Re: use exact allocation for dma coherent memory Message-ID: <20190701084833.GA22927@lst.de> References: <20190614134726.3827-1-hch@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190614134726.3827-1-hch@lst.de> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: devel@driverdev.osuosl.org, linux-s390@vger.kernel.org, Intel Linux Wireless , linux-rdma@vger.kernel.org, netdev@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, "moderated list:ARM PORT" , linux-media@vger.kernel.org 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 Fri, Jun 14, 2019 at 03:47:10PM +0200, Christoph Hellwig wrote: > Switching to a slightly cleaned up alloc_pages_exact is pretty easy, > but it turns out that because we didn't filter valid gfp_t flags > on the DMA allocator, a bunch of drivers were passing __GFP_COMP > to it, which is rather bogus in too many ways to explain. Arm has > been filtering it for a while, but this series instead tries to fix > the drivers and warn when __GFP_COMP is passed, which makes it much > larger than just adding the functionality. Dear driver maintainers, can you look over the patches touching your drivers, please? I'd like to get as much as possible of the driver patches into this merge window, so that it can you through your maintainer trees. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu