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Fri, 19 Dec 2025 12:12:09 -0800 From: Nicolin Chen To: CC: , , , , , , , , , , , Subject: [PATCH v9 2/7] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Date: Fri, 19 Dec 2025 12:11:24 -0800 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF000026C7:EE_|DS0PR12MB8042:EE_ X-MS-Office365-Filtering-Correlation-Id: e7cbc710-ca98-4d64-ba87-08de3f3aeeda X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?xEz3hMvholcxOX7YwUUTQbGLesGfJzNZXgRi2vhiqk7fVDI2GqOsygjTSIfx?= =?us-ascii?Q?juxhzW3iqjaiHfNSGEYgkZu2Na/2l5IwkEuYXmUEsPZTE+L0nUlk9tRvquYG?= =?us-ascii?Q?1/cPcNyx0MnpK/XRdmag67VYbNyV78yQ89QpkJnJj+l06be+ZHvQewYQMWHi?= =?us-ascii?Q?UYFgcHtowmy21nwxTNasqRj7YVxgzGz22nPSwxtoEc/Q0kP1PQASnDmQX+yW?= =?us-ascii?Q?arsN5fkLUTuSAAzDXo3VjaMaARVkVgwlQrUoPZP0l4duSYl5BnCKhV2yod39?= =?us-ascii?Q?DQvZuJjJjWfAsEq5v5J3IubA0w+93U08QwGTfdJ+I2As7vRb+pElfW+GvJXp?= =?us-ascii?Q?/muqu2PxMUbkVuVBISiMv+2b5vFeBAAyYxT/njVBXxDOajAaeOVLz095bzKL?= =?us-ascii?Q?Kulx3R17ABBMxXD43hpi0LnpXyMalJTm3P/Y82uIoUOtXbOEqJEqSmWmPsuk?= =?us-ascii?Q?QC/YBInPHyC2sG1gc73PDHk7wKw5IQq7yS2PY/MeOMl938QX0Zk1TcuGMmFl?= =?us-ascii?Q?+G9xntq+koen+1bx19lB2X4dyxKnLuIQ4LclMOTxGSehjXwqS/QhcIDEuBx4?= =?us-ascii?Q?bBtplkszyWZxvMczrFzTFzmXR7VQQ+6tri7zM8U5FqSwtuGYGUxmrVHFXcrI?= =?us-ascii?Q?Khf3bNSSp3+GD6xuWwe1mI52u0oiv7iX6486ckdOyDVeUQUbLBL2H+7oVprc?= =?us-ascii?Q?oK6GRK+B8e+UP4KhFb/s+iIwJAsqHA0vUxVOMRl6v8Ml0OI6Wr0bu/tKUpnT?= =?us-ascii?Q?bzU/Jr+bDeJL1ZC2bliQOHMAMxlSmaL2oiU8wYJ21wr3gOeIap8XFsizX+xi?= =?us-ascii?Q?7OPOC4IK4jdUULJ7DKlMChNX2RW+1Dq8PH+GOfBdlxdbCcgUxxUzmyI7k0B5?= =?us-ascii?Q?c8DEFQR+WeIs4OsVufu2J9OP3X0q3u5xEyQIKhVKWfjT8qu88h9DM5uSFJ3z?= =?us-ascii?Q?HQH3/N32sLb/kHA/NMjdGIKfr4IqrPxDXnXHgVg8bsYq1XlNxW1z84gzOiWo?= =?us-ascii?Q?cwflZfM7q5G2LbvRbcYAl0GIfxOLIgvzV/JjEBBUB2lPVCzkBj8nXslbBqqu?= =?us-ascii?Q?bwTSeBr/mu5ZOyzJzjeSxV2Iso1l6CFf+mfzHSzwhuiBsKHst+eQMAdZjIvh?= =?us-ascii?Q?U/AlkgvifIc6rPs42YR2s3Omv01HAZjzFeh52EKebFsMBhVVCACw7FI8jBd7?= =?us-ascii?Q?1MtPznUE26HBzR7D4XIQe6+kHqmwJ2/IYm3C1EvqhliFL34pMUyV7I6gZcK3?= =?us-ascii?Q?P8DxPloQPpqxJX5AUDZP1ZxmIKibbHSxTGPaITMB6zkzEEM2AwY0PR4tAHhK?= =?us-ascii?Q?vlY9l0akZZ70n/MTWIsctsbDLk8YvjgJSgleroYPjn0swxdLXBt7Ue0TCo3F?= =?us-ascii?Q?lTqegI3cyRe4EPtikWUv/3a7JUS9nu1G4ec0fKWalkMFKi4spHFf68FsvRPO?= =?us-ascii?Q?zxmB305Td4PX0uTD0vZlYind9o2uTfN9UiqnAccZKxjoj9QVDQE34YYgTkUl?= =?us-ascii?Q?jyUBuBaRSEgvJFjXQ4mN1wnUyWX62Exy4PIaMO0tTLV32ffxQtS1x2JUqmzb?= =?us-ascii?Q?C+1a0EJzYxy1eHhOFUU=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(36860700013)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Dec 2025 20:12:28.0852 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e7cbc710-ca98-4d64-ba87-08de3f3aeeda X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000026C7.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8042 There will be a bit more things to free than smmu_domain itself. So keep a simple inline function in the header to share aross files. Suggested-by: Jason Gunthorpe Reviewed-by: Jason Gunthorpe Acked-by: Balbir Singh Signed-off-by: Nicolin Chen --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 5 +++++ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 5 +++-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 ++-- 3 files changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h index 5c0b38595d20..96a23ca633cb 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -954,6 +954,11 @@ extern struct mutex arm_smmu_asid_lock; struct arm_smmu_domain *arm_smmu_domain_alloc(void); +static inline void arm_smmu_domain_free(struct arm_smmu_domain *smmu_domain) +{ + kfree(smmu_domain); +} + void arm_smmu_clear_cd(struct arm_smmu_master *master, ioasid_t ssid); struct arm_smmu_cd *arm_smmu_get_cd_ptr(struct arm_smmu_master *master, u32 ssid); diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c index 6097f1f540d8..440ad8cc07de 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c @@ -197,7 +197,8 @@ static void arm_smmu_mm_release(struct mmu_notifier *mn, struct mm_struct *mm) static void arm_smmu_mmu_notifier_free(struct mmu_notifier *mn) { - kfree(container_of(mn, struct arm_smmu_domain, mmu_notifier)); + arm_smmu_domain_free( + container_of(mn, struct arm_smmu_domain, mmu_notifier)); } static const struct mmu_notifier_ops arm_smmu_mmu_notifier_ops = { @@ -365,6 +366,6 @@ struct iommu_domain *arm_smmu_sva_domain_alloc(struct device *dev, err_asid: xa_erase(&arm_smmu_asid_xa, smmu_domain->cd.asid); err_free: - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); return ERR_PTR(ret); } diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 9d9f24a08062..e9759e8af0c0 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2492,7 +2492,7 @@ static void arm_smmu_domain_free_paging(struct iommu_domain *domain) ida_free(&smmu->vmid_map, cfg->vmid); } - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); } static int arm_smmu_domain_finalise_s1(struct arm_smmu_device *smmu, @@ -3359,7 +3359,7 @@ arm_smmu_domain_alloc_paging_flags(struct device *dev, u32 flags, return &smmu_domain->domain; err_free: - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); return ERR_PTR(ret); } -- 2.43.0