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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 1021AC04EB9 for ; Mon, 3 Dec 2018 16:28:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A714F20661 for ; Mon, 3 Dec 2018 16:28:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="IikqCr5f" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A714F20661 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726777AbeLCQ2J (ORCPT ); Mon, 3 Dec 2018 11:28:09 -0500 Received: from hqemgate16.nvidia.com ([216.228.121.65]:9386 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726637AbeLCQ2I (ORCPT ); Mon, 3 Dec 2018 11:28:08 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Mon, 03 Dec 2018 08:28:09 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Mon, 03 Dec 2018 08:28:06 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Mon, 03 Dec 2018 08:28:06 -0800 Received: from [10.24.70.32] (10.124.1.5) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 3 Dec 2018 16:27:57 +0000 Subject: Re: [PATCH v4 6/8] vfio/mdev: Add iommu place holders in mdev_device To: Christoph Hellwig CC: Lu Baolu , Alex Williamson , Joerg Roedel , David Woodhouse , , , , , Jean-Philippe Brucker , , , , , Zeng Xin , , , , Jacob Pan References: <20181105073408.21815-1-baolu.lu@linux.intel.com> <20181105073408.21815-7-baolu.lu@linux.intel.com> <20181106165356.44b59ec3@w520.home> <7bfc2f2b-10e6-b53c-51f3-c6494b686aa3@nvidia.com> <25b9a20f-06b5-57ac-81f1-fd933845c77f@linux.intel.com> <20181116085714.GA13181@infradead.org> <339ab9c8-08e1-ce2f-6f71-99a06e4b82f3@nvidia.com> <20181121084529.GA21766@infradead.org> X-Nvconfidentiality: public From: Kirti Wankhede Message-ID: Date: Mon, 3 Dec 2018 21:57:49 +0530 MIME-Version: 1.0 In-Reply-To: <20181121084529.GA21766@infradead.org> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL101.nvidia.com (172.20.187.10) To HQMAIL101.nvidia.com (172.20.187.10) Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1543854489; bh=b4DkH+vuCTwYtgytDBxVHRcaPrIJH0q5/BjSkcGcvFM=; h=X-PGP-Universal:Subject:To:CC:References:X-Nvconfidentiality:From: Message-ID:Date:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=IikqCr5fVqXYDx9uFeTTxMn5N2q1jTZV0AzWZAxPdX2QCd8szwQVe/tLpmqm4h/3I 2o7o99T/2QY4eVDxQ/KQjrzNsBkyryRnZGIEMBqbQZ9COWmilXBwEhfAoBGdV0hSuq aAW5nBwOJx9BdDtU1AFla/49EVh03jQQhlMIAGvHA6OOLUcqLcd8mnExB8Q4U/POAI qYKx1p3VcBZZjF+FJ1EPEhU1WO/XO7yZ+lkna99fE4XQP+RigHVx95Ev4GUQcMW2C9 3GKKU8iBDGN2lN59eonQkiid1pebZgDe0dYQaumZcI7/Ojt8ng2hBKXFQh2fiyUUa9 PztZPo1ClKnYw== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/21/2018 2:15 PM, Christoph Hellwig wrote: > On Wed, Nov 21, 2018 at 02:22:08AM +0530, Kirti Wankhede wrote: >> It is about how mdev framework can be used by existing drivers. These >> symbols doesn't use any other exported symbols. > > That is an unfortunate accident of history, but doesn't extent to new > ones. It also is another inidicator those drivers probably are derived > works of the Linux kernel and might be in legal trouble one way or > another. > These symbols are just to associate iommu properties of a physical device with a mdev device, doesn't include low-level information. Thanks, Kirti