From patchwork Fri Oct 25 23:49:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolin Chen X-Patchwork-Id: 838894 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2042.outbound.protection.outlook.com [40.107.92.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 23E18215C5A; Fri, 25 Oct 2024 23:50:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.92.42 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729900225; cv=fail; b=jPF9bhwo3/Tkw3/kvHrBxqUMKt/rcAN7HJV4BsDzAcYGbocuOHhHW1tO9ZVsA1YBP1cZOP8bukOjy4wge+XhQrDJMFW2W9KcDNfK36wbofbu9tD3duW6kHenUWj3ZNknYg/GdBMEBAkU0xxc1JyiMRVY0o/W1miYNOpcxsYFWng= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729900225; c=relaxed/simple; bh=JSfewWgNwvus83Nv+oNO8znMzG9DOtcqjmbDWCpJERw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ZHQ+a9sUG4vKvyhQCuQNUc/FOPBnTTKfVq83V6q6YmCL5k/XlRug89CTbbHBHqJuuBfz4bN2J7+WocTBKOzdROt8kKsBx7xN2syFDBaeJ2FwsItXKXIJIGKuZMpNICn8ucSV8CqyVqylu4OvF3H6VwZdzJXPd1YzTEUCrsMCK60= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=BoJGO0Y8; arc=fail smtp.client-ip=40.107.92.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="BoJGO0Y8" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=bQRhye8uvDqSc1k1yw/d2598JHmnZ/DkkokRbilsoOWcjDV9xhj8rC4jIv0F5KrLfqZ3/anNjTUu3+AQa9RLRkzeQA1mUq+Rdnyhzt8EwqUCzFx4pnJh+KhGtS1En45JWBMiElekiP3aaSPQdkAx2QvtThYgrxU33QeA+p0+OGWjoQcL06OfKMGRdFADKfQaXeDO1NAVXe/sFx376btHTMwwg0Upyoy6MBlrSYc6y+rPg+nwIJML45D6biE2z9MOSwocmkBXJWm35ZdQJ3PWaMYFyas0lsSECWZLKXaj9XBm0XeIsonL43Ol45FOYlslpj2OaDhlwRK9U6bzpvkJJA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=RtVtofzp8OcKTgoQwZaMi8BeKjx7X+hMztGUPlaFmbk=; b=TVA9ixHHhpSuiC8xXh7+uy5JxsqeNpAfKJRKEbl8nQUHlWq6Oe6WiZXYy6IHEEj0K/cIoxwPE4/m/0kXW654njsfEKFUP5LT9Q2iCjMANlaE2wNwT2lmNlFRpsuz1iy91AS7+u0RtFlLgYY3N/D2rMIFxAjUjGSgb0l451j2HKQhZXAUA9B39qcQxgOoMde4NlF1vUe5ClLzCiU/Vl0DoySPz3n+brh2rF0VFXbfq6TJIvGE90Bjlv5txfmYjYpVCMghSnstNOrgAGVPfkpim/xAbadlch/71Vrj+0/TVIJ9/lLbzxYDs/03hlf+LcaHbVQIhz3kNh/JZOLK5SqwQQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.118.232) smtp.rcpttodomain=amd.com smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=RtVtofzp8OcKTgoQwZaMi8BeKjx7X+hMztGUPlaFmbk=; b=BoJGO0Y8EOVV8BYejXfWSfskk2G+e4nn4kTVAbE4cn8mk7MktyMHt9GQewKbP45BR/hdMa/mH2Jbf8yY/ZhjktKYAYAkJiC0+JVx2rC7+T2REBNrYq1wn43kab/DMyPT2jAELfqT49cVqAeIBalhYxCFqIN/3ju+gySyoXsoFfpKKOMXmvequwXWXWfFNEZ0ZmTPFMe9pywhw9dY6eHuzIBBZi5mjj/WgdDTlBSzLDw3XPKwKIwi2uLMUoVR4tHQhaJrxrPkXtP5JYcEFGyAO4IjyFwLjxpccfKWel5YS5WhgTcE7P6I190nBxX8L5EjrcAwto29Q1a0W2UEUIHOPQ== Received: from SJ0PR05CA0135.namprd05.prod.outlook.com (2603:10b6:a03:33d::20) by SJ2PR12MB7917.namprd12.prod.outlook.com (2603:10b6:a03:4c7::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8093.19; Fri, 25 Oct 2024 23:50:17 +0000 Received: from SJ1PEPF000023CE.namprd02.prod.outlook.com (2603:10b6:a03:33d:cafe::c8) by SJ0PR05CA0135.outlook.office365.com (2603:10b6:a03:33d::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8114.9 via Frontend Transport; Fri, 25 Oct 2024 23:50:17 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.118.232) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.118.232 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.118.232; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.118.232) by SJ1PEPF000023CE.mail.protection.outlook.com (10.167.244.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8093.14 via Frontend Transport; Fri, 25 Oct 2024 23:50:17 +0000 Received: from drhqmail202.nvidia.com (10.126.190.181) by mail.nvidia.com (10.127.129.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Fri, 25 Oct 2024 16:50:12 -0700 Received: from drhqmail201.nvidia.com (10.126.190.180) by drhqmail202.nvidia.com (10.126.190.181) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Fri, 25 Oct 2024 16:50:12 -0700 Received: from Asurada-Nvidia.nvidia.com (10.127.8.9) by mail.nvidia.com (10.126.190.180) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Fri, 25 Oct 2024 16:50:11 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , , , , , , , , , , , Subject: [PATCH v5 07/13] iommufd/selftest: Add container_of helpers Date: Fri, 25 Oct 2024 16:49:47 -0700 Message-ID: <53484f80a671edcf337e93b2e2292f318eefb540.1729897352.git.nicolinc@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF000023CE:EE_|SJ2PR12MB7917:EE_ X-MS-Office365-Filtering-Correlation-Id: ba7e5e4a-51be-4d41-63c8-08dcf54fc747 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|376014|7416014|36860700013|82310400026|1800799024; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.232; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc7edge1.nvidia.com; CAT:NONE; SFS:(13230040)(376014)(7416014)(36860700013)(82310400026)(1800799024); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Oct 2024 23:50:17.4021 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ba7e5e4a-51be-4d41-63c8-08dcf54fc747 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.118.232]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023CE.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB7917 Use these inline helpers to shorten those container_of lines. Note that one of them goes back and forth between iommu_domain and mock_iommu_domain, which isn't necessary. So drop its container_of. Signed-off-by: Nicolin Chen --- drivers/iommu/iommufd/selftest.c | 75 ++++++++++++++++++-------------- 1 file changed, 42 insertions(+), 33 deletions(-) diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c index 540437be168a..322e57ff3605 100644 --- a/drivers/iommu/iommufd/selftest.c +++ b/drivers/iommu/iommufd/selftest.c @@ -126,12 +126,24 @@ struct mock_iommu_domain { struct xarray pfns; }; +static inline struct mock_iommu_domain * +to_mock_domain(struct iommu_domain *domain) +{ + return container_of(domain, struct mock_iommu_domain, domain); +} + struct mock_iommu_domain_nested { struct iommu_domain domain; struct mock_iommu_domain *parent; u32 iotlb[MOCK_NESTED_DOMAIN_IOTLB_NUM]; }; +static inline struct mock_iommu_domain_nested * +to_mock_nested(struct iommu_domain *domain) +{ + return container_of(domain, struct mock_iommu_domain_nested, domain); +} + enum selftest_obj_type { TYPE_IDEV, }; @@ -142,6 +154,11 @@ struct mock_dev { int id; }; +static inline struct mock_dev *to_mock_dev(struct device *dev) +{ + return container_of(dev, struct mock_dev, dev); +} + struct selftest_obj { struct iommufd_object obj; enum selftest_obj_type type; @@ -155,10 +172,15 @@ struct selftest_obj { }; }; +static inline struct selftest_obj *to_selftest_obj(struct iommufd_object *obj) +{ + return container_of(obj, struct selftest_obj, obj); +} + static int mock_domain_nop_attach(struct iommu_domain *domain, struct device *dev) { - struct mock_dev *mdev = container_of(dev, struct mock_dev, dev); + struct mock_dev *mdev = to_mock_dev(dev); if (domain->dirty_ops && (mdev->flags & MOCK_FLAGS_DEVICE_NO_DIRTY)) return -EINVAL; @@ -193,8 +215,7 @@ static void *mock_domain_hw_info(struct device *dev, u32 *length, u32 *type) static int mock_domain_set_dirty_tracking(struct iommu_domain *domain, bool enable) { - struct mock_iommu_domain *mock = - container_of(domain, struct mock_iommu_domain, domain); + struct mock_iommu_domain *mock = to_mock_domain(domain); unsigned long flags = mock->flags; if (enable && !domain->dirty_ops) @@ -243,8 +264,7 @@ static int mock_domain_read_and_clear_dirty(struct iommu_domain *domain, unsigned long flags, struct iommu_dirty_bitmap *dirty) { - struct mock_iommu_domain *mock = - container_of(domain, struct mock_iommu_domain, domain); + struct mock_iommu_domain *mock = to_mock_domain(domain); unsigned long end = iova + size; void *ent; @@ -281,7 +301,7 @@ static const struct iommu_dirty_ops dirty_ops = { static struct iommu_domain *mock_domain_alloc_paging(struct device *dev) { - struct mock_dev *mdev = container_of(dev, struct mock_dev, dev); + struct mock_dev *mdev = to_mock_dev(dev); struct mock_iommu_domain *mock; mock = kzalloc(sizeof(*mock), GFP_KERNEL); @@ -327,7 +347,7 @@ mock_domain_alloc_user(struct device *dev, u32 flags, /* must be mock_domain */ if (!parent) { - struct mock_dev *mdev = container_of(dev, struct mock_dev, dev); + struct mock_dev *mdev = to_mock_dev(dev); bool has_dirty_flag = flags & IOMMU_HWPT_ALLOC_DIRTY_TRACKING; bool no_dirty_ops = mdev->flags & MOCK_FLAGS_DEVICE_NO_DIRTY; struct iommu_domain *domain; @@ -341,8 +361,7 @@ mock_domain_alloc_user(struct device *dev, u32 flags, if (!domain) return ERR_PTR(-ENOMEM); if (has_dirty_flag) - container_of(domain, struct mock_iommu_domain, domain) - ->domain.dirty_ops = &dirty_ops; + domain->dirty_ops = &dirty_ops; return domain; } @@ -352,7 +371,7 @@ mock_domain_alloc_user(struct device *dev, u32 flags, if (!parent || parent->ops != mock_ops.default_domain_ops) return ERR_PTR(-EINVAL); - mock_parent = container_of(parent, struct mock_iommu_domain, domain); + mock_parent = to_mock_domain(parent); if (!mock_parent) return ERR_PTR(-EINVAL); @@ -366,8 +385,7 @@ mock_domain_alloc_user(struct device *dev, u32 flags, static void mock_domain_free(struct iommu_domain *domain) { - struct mock_iommu_domain *mock = - container_of(domain, struct mock_iommu_domain, domain); + struct mock_iommu_domain *mock = to_mock_domain(domain); WARN_ON(!xa_empty(&mock->pfns)); kfree(mock); @@ -378,8 +396,7 @@ static int mock_domain_map_pages(struct iommu_domain *domain, size_t pgsize, size_t pgcount, int prot, gfp_t gfp, size_t *mapped) { - struct mock_iommu_domain *mock = - container_of(domain, struct mock_iommu_domain, domain); + struct mock_iommu_domain *mock = to_mock_domain(domain); unsigned long flags = MOCK_PFN_START_IOVA; unsigned long start_iova = iova; @@ -430,8 +447,7 @@ static size_t mock_domain_unmap_pages(struct iommu_domain *domain, size_t pgcount, struct iommu_iotlb_gather *iotlb_gather) { - struct mock_iommu_domain *mock = - container_of(domain, struct mock_iommu_domain, domain); + struct mock_iommu_domain *mock = to_mock_domain(domain); bool first = true; size_t ret = 0; void *ent; @@ -479,8 +495,7 @@ static size_t mock_domain_unmap_pages(struct iommu_domain *domain, static phys_addr_t mock_domain_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { - struct mock_iommu_domain *mock = - container_of(domain, struct mock_iommu_domain, domain); + struct mock_iommu_domain *mock = to_mock_domain(domain); void *ent; WARN_ON(iova % MOCK_IO_PAGE_SIZE); @@ -491,7 +506,7 @@ static phys_addr_t mock_domain_iova_to_phys(struct iommu_domain *domain, static bool mock_domain_capable(struct device *dev, enum iommu_cap cap) { - struct mock_dev *mdev = container_of(dev, struct mock_dev, dev); + struct mock_dev *mdev = to_mock_dev(dev); switch (cap) { case IOMMU_CAP_CACHE_COHERENCY: @@ -571,18 +586,14 @@ static const struct iommu_ops mock_ops = { static void mock_domain_free_nested(struct iommu_domain *domain) { - struct mock_iommu_domain_nested *mock_nested = - container_of(domain, struct mock_iommu_domain_nested, domain); - - kfree(mock_nested); + kfree(to_mock_nested(domain)); } static int mock_domain_cache_invalidate_user(struct iommu_domain *domain, struct iommu_user_data_array *array) { - struct mock_iommu_domain_nested *mock_nested = - container_of(domain, struct mock_iommu_domain_nested, domain); + struct mock_iommu_domain_nested *mock_nested = to_mock_nested(domain); struct iommu_hwpt_invalidate_selftest inv; u32 processed = 0; int i = 0, j; @@ -657,7 +668,7 @@ get_md_pagetable(struct iommufd_ucmd *ucmd, u32 mockpt_id, iommufd_put_object(ucmd->ictx, &hwpt->obj); return ERR_PTR(-EINVAL); } - *mock = container_of(hwpt->domain, struct mock_iommu_domain, domain); + *mock = to_mock_domain(hwpt->domain); return hwpt; } @@ -675,14 +686,13 @@ get_md_pagetable_nested(struct iommufd_ucmd *ucmd, u32 mockpt_id, iommufd_put_object(ucmd->ictx, &hwpt->obj); return ERR_PTR(-EINVAL); } - *mock_nested = container_of(hwpt->domain, - struct mock_iommu_domain_nested, domain); + *mock_nested = to_mock_nested(hwpt->domain); return hwpt; } static void mock_dev_release(struct device *dev) { - struct mock_dev *mdev = container_of(dev, struct mock_dev, dev); + struct mock_dev *mdev = to_mock_dev(dev); ida_free(&mock_dev_ida, mdev->id); kfree(mdev); @@ -813,7 +823,7 @@ static int iommufd_test_mock_domain_replace(struct iommufd_ucmd *ucmd, if (IS_ERR(dev_obj)) return PTR_ERR(dev_obj); - sobj = container_of(dev_obj, struct selftest_obj, obj); + sobj = to_selftest_obj(dev_obj); if (sobj->type != TYPE_IDEV) { rc = -EINVAL; goto out_dev_obj; @@ -951,8 +961,7 @@ static int iommufd_test_md_check_iotlb(struct iommufd_ucmd *ucmd, if (IS_ERR(hwpt)) return PTR_ERR(hwpt); - mock_nested = container_of(hwpt->domain, - struct mock_iommu_domain_nested, domain); + mock_nested = to_mock_nested(hwpt->domain); if (iotlb_id > MOCK_NESTED_DOMAIN_IOTLB_ID_MAX || mock_nested->iotlb[iotlb_id] != iotlb) @@ -1431,7 +1440,7 @@ static int iommufd_test_trigger_iopf(struct iommufd_ucmd *ucmd, void iommufd_selftest_destroy(struct iommufd_object *obj) { - struct selftest_obj *sobj = container_of(obj, struct selftest_obj, obj); + struct selftest_obj *sobj = to_selftest_obj(obj); switch (sobj->type) { case TYPE_IDEV: