From patchwork Wed Aug 16 12:13:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13355122 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A49FC04A94 for ; Wed, 16 Aug 2023 12:15:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245003AbjHPMPG (ORCPT ); Wed, 16 Aug 2023 08:15:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33062 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245006AbjHPMOh (ORCPT ); Wed, 16 Aug 2023 08:14:37 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 92F7A2711; Wed, 16 Aug 2023 05:14:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692188059; x=1723724059; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Fs7dLcn9YCMAf2UdUhEZTXtznwbetIf5y0nygEREgKs=; b=c8eB38ytZBuAzbHeyF1BVAb1cO2WC+YJYngmzCzvBoB1ajG2Hr/sobln eZ0XqXwsUocUZwYTZ+KoJ93Kcyckr1b7R4TDS/KcFjMRoBZ/hPFJ7/DMx k0mCf6TaiyVTkiD77UNZLggZQ4Itt1ALKtdXSSS+D3JrRqtxSYYr3aCo4 +UKAkIhoTCkEz+gNJNjI76QV2aFwc68v9MDDSUmRQvSIXjiCgMzzFvbyF 6f4Y186R21/Tj8sUbSebg7QxBcNnq5yB/egS4E2Y1FVHZUwcvUrW1qnDo VWlnj2DACn3grXNlexRGpVjHcjut58ASOiLGny3jEQUSeiYlm2+U149Gt w==; X-IronPort-AV: E=McAfee;i="6600,9927,10803"; a="436411616" X-IronPort-AV: E=Sophos;i="6.01,176,1684825200"; d="scan'208";a="436411616" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2023 05:14:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10803"; a="727730752" X-IronPort-AV: E=Sophos;i="6.01,176,1684825200"; d="scan'208";a="727730752" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orsmga007.jf.intel.com with ESMTP; 16 Aug 2023 05:14:07 -0700 From: Yi Liu To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com, robin.murphy@arm.com, baolu.lu@linux.intel.com Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, zhenzhong.duan@intel.com Subject: [PATCH v8 1/5] iommu: Move dev_iommu_ops() to private header Date: Wed, 16 Aug 2023 05:13:45 -0700 Message-Id: <20230816121349.104436-2-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230816121349.104436-1-yi.l.liu@intel.com> References: <20230816121349.104436-1-yi.l.liu@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org dev_iommu_ops() is essentially only used in iommu subsystem, so move to a private header to avoid being abused by other drivers. Suggested-by: Jason Gunthorpe Reviewed-by: Kevin Tian Reviewed-by: Lu Baolu Reviewed-by: Jason Gunthorpe Signed-off-by: Yi Liu --- drivers/iommu/iommu-priv.h | 11 +++++++++++ include/linux/iommu.h | 11 ----------- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/iommu/iommu-priv.h b/drivers/iommu/iommu-priv.h index e3e3b2015854..2024a2313348 100644 --- a/drivers/iommu/iommu-priv.h +++ b/drivers/iommu/iommu-priv.h @@ -6,6 +6,17 @@ #include +static inline const struct iommu_ops *dev_iommu_ops(struct device *dev) +{ + /* + * Assume that valid ops must be installed if iommu_probe_device() + * has succeeded. The device ops are essentially for internal use + * within the IOMMU subsystem itself, so we should be able to trust + * ourselves not to misuse the helper. + */ + return dev->iommu->iommu_dev->ops; +} + int iommu_group_replace_domain(struct iommu_group *group, struct iommu_domain *new_domain); diff --git a/include/linux/iommu.h b/include/linux/iommu.h index d31642596675..e0245aa82b75 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -450,17 +450,6 @@ static inline void iommu_iotlb_gather_init(struct iommu_iotlb_gather *gather) }; } -static inline const struct iommu_ops *dev_iommu_ops(struct device *dev) -{ - /* - * Assume that valid ops must be installed if iommu_probe_device() - * has succeeded. The device ops are essentially for internal use - * within the IOMMU subsystem itself, so we should be able to trust - * ourselves not to misuse the helper. - */ - return dev->iommu->iommu_dev->ops; -} - extern int bus_iommu_probe(const struct bus_type *bus); extern bool iommu_present(const struct bus_type *bus); extern bool device_iommu_capable(struct device *dev, enum iommu_cap cap);