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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT 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 445FEC31E44 for ; Fri, 14 Jun 2019 07:23:27 +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 22F872073F for ; Fri, 14 Jun 2019 07:23:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 22F872073F 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 52A3BF2F; Fri, 14 Jun 2019 07:23:19 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 4EAFBF1E for ; Fri, 14 Jun 2019 07:22:58 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from newverein.lst.de (verein.lst.de [213.95.11.211]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id EA6B0E5 for ; Fri, 14 Jun 2019 07:22:57 +0000 (UTC) Received: by newverein.lst.de (Postfix, from userid 2407) id 2F2DD68B02; Fri, 14 Jun 2019 09:22:29 +0200 (CEST) Date: Fri, 14 Jun 2019 09:22:28 +0200 From: Christoph Hellwig To: Yoshihiro Shimoda Subject: Re: [RFC PATCH v6 3/5] block: add a helper function to merge the segments by an IOMMU Message-ID: <20190614072228.GC8420@lst.de> References: <1560421215-10750-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> <1560421215-10750-4-git-send-email-yoshihiro.shimoda.uh@renesas.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1560421215-10750-4-git-send-email-yoshihiro.shimoda.uh@renesas.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: axboe@kernel.dk, linux-renesas-soc@vger.kernel.org, ulf.hansson@linaro.org, linux-mmc@vger.kernel.org, linux-block@vger.kernel.org, wsa+renesas@sang-engineering.com, iommu@lists.linux-foundation.org, hch@lst.de 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 I'm a little worried about this directly calling into the iommu API instead of going through the DMA mapping code. We still have plenty of iommus not using the iommu layer for DMA mapping. But at least this code is in the block layer and not the driver, so maybe we can live with it. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu