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 9CAEAC07E85 for ; Tue, 11 Dec 2018 12:19:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 67CBE20811 for ; Tue, 11 Dec 2018 12:19:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 67CBE20811 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 S1726384AbeLKMTO (ORCPT ); Tue, 11 Dec 2018 07:19:14 -0500 Received: from 8bytes.org ([81.169.241.247]:53092 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726190AbeLKMTN (ORCPT ); Tue, 11 Dec 2018 07:19:13 -0500 Received: by theia.8bytes.org (Postfix, from userid 1000) id 33AC5284; Tue, 11 Dec 2018 13:19:12 +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 1/9] iommu: Introduce wrappers around dev->iommu_fwspec Date: Tue, 11 Dec 2018 13:19:02 +0100 Message-Id: <20181211121910.5604-2-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 These wrappers will be used to easily change the location of the field later when all users are converted. Signed-off-by: Joerg Roedel --- drivers/iommu/iommu.c | 14 +++++++------- include/linux/iommu.h | 11 +++++++++++ 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index edbdf5d6962c..4cfd407b972c 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1976,7 +1976,7 @@ const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode) int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, const struct iommu_ops *ops) { - struct iommu_fwspec *fwspec = dev->iommu_fwspec; + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); if (fwspec) return ops == fwspec->ops ? 0 : -EINVAL; @@ -1988,26 +1988,26 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, of_node_get(to_of_node(iommu_fwnode)); fwspec->iommu_fwnode = iommu_fwnode; fwspec->ops = ops; - dev->iommu_fwspec = fwspec; + dev_iommu_fwspec_set(dev, fwspec); return 0; } EXPORT_SYMBOL_GPL(iommu_fwspec_init); void iommu_fwspec_free(struct device *dev) { - struct iommu_fwspec *fwspec = dev->iommu_fwspec; + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); if (fwspec) { fwnode_handle_put(fwspec->iommu_fwnode); kfree(fwspec); - dev->iommu_fwspec = NULL; + dev_iommu_fwspec_set(dev, NULL); } } EXPORT_SYMBOL_GPL(iommu_fwspec_free); int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids) { - struct iommu_fwspec *fwspec = dev->iommu_fwspec; + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); size_t size; int i; @@ -2016,11 +2016,11 @@ int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids) size = offsetof(struct iommu_fwspec, ids[fwspec->num_ids + num_ids]); if (size > sizeof(*fwspec)) { - fwspec = krealloc(dev->iommu_fwspec, size, GFP_KERNEL); + fwspec = krealloc(fwspec, size, GFP_KERNEL); if (!fwspec) return -ENOMEM; - dev->iommu_fwspec = fwspec; + dev_iommu_fwspec_set(dev, fwspec); } for (i = 0; i < num_ids; i++) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index a1d28f42cb77..f93fdcf7d130 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -398,6 +398,17 @@ void iommu_fwspec_free(struct device *dev); int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids); const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode); +static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev) +{ + return dev->iommu_fwspec; +} + +static inline void dev_iommu_fwspec_set(struct device *dev, + struct iommu_fwspec *fwspec) +{ + dev->iommu_fwspec = fwspec; +} + #else /* CONFIG_IOMMU_API */ struct iommu_ops {}; -- 2.17.1