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=-8.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 16D99C07E85 for ; Tue, 11 Dec 2018 12:19:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D9DF920811 for ; Tue, 11 Dec 2018 12:19:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D9DF920811 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org 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 S1726533AbeLKMTr (ORCPT ); Tue, 11 Dec 2018 07:19:47 -0500 Received: from 8bytes.org ([81.169.241.247]:53158 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726190AbeLKMTO (ORCPT ); Tue, 11 Dec 2018 07:19:14 -0500 Received: by theia.8bytes.org (Postfix, from userid 1000) id 3E60B6C6; Tue, 11 Dec 2018 13:19:13 +0100 (CET) From: Joerg Roedel To: iommu@lists.linux-foundation.org Cc: Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Will Deacon , Robin Murphy , Joerg Roedel , Matthias Brugger , Rob Clark , Thierry Reding , linux-kernel@vger.kernel.org, Joerg Roedel Subject: [PATCH 7/9] iommu/of: Use helper functions to access dev->iommu_fwspec Date: Tue, 11 Dec 2018 13:19:08 +0100 Message-Id: <20181211121910.5604-8-joro@8bytes.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181211121910.5604-1-joro@8bytes.org> References: <20181211121910.5604-1-joro@8bytes.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel Use the new helpers dev_iommu_fwspec_get()/set() to access the dev->iommu_fwspec pointer. This makes it easier to move that pointer later into another struct. Signed-off-by: Joerg Roedel --- drivers/iommu/of_iommu.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index c5dd63072529..8b071f3dcf9e 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -164,7 +164,7 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, struct device_node *master_np) { const struct iommu_ops *ops = NULL; - struct iommu_fwspec *fwspec = dev->iommu_fwspec; + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); int err = NO_IOMMU; if (!master_np) @@ -208,14 +208,18 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, } } + /* * Two success conditions can be represented by non-negative err here: * >0 : there is no IOMMU, or one was unavailable for non-fatal reasons * 0 : we found an IOMMU, and dev->fwspec is initialised appropriately * <0 : any actual error */ - if (!err) - ops = dev->iommu_fwspec->ops; + if (!err) { + /* The fwspec pointer changed, read it again */ + fwspec = dev_iommu_fwspec_get(dev); + ops = fwspec->ops; + } /* * If we have reason to believe the IOMMU driver missed the initial * add_device callback for dev, replay it to get things in order. -- 2.17.1