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Mon, 8 Sep 2025 16:28:40 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , , , Subject: [PATCH rfcv2 3/8] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Date: Mon, 8 Sep 2025 16:26:57 -0700 Message-ID: <2066c45c004cde5c5e9f334c40e5683402e6deda.1757373449.git.nicolinc@nvidia.com> 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: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000FCC3:EE_|SA3PR12MB9160:EE_ X-MS-Office365-Filtering-Correlation-Id: e43cfac9-3310-4b49-237a-08ddef2f7aea X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|82310400026|7416014|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?DtD+q+JeFE4scypAE9wedycZktYHa7+x8OkDWCVwew4zo/TPndBrarHT4vbM?= =?us-ascii?Q?MOxDEOMJUHsnOrhKNsU2npISyDvS0KkuNpd/NSmWy1dUs2y9WVMrV9fo/4i7?= =?us-ascii?Q?aaJE2QEDw4isZWDjrq02N0S5YYGtfOW+K6qqNk54ZsSbRkKa7AcxytHxYfrp?= =?us-ascii?Q?6otZKWsjpMcXkNP7ZT5u2hgRzked+rv9e3Fd+Yfo5Up7R2UNu6Xr6UOjntR1?= =?us-ascii?Q?q9dqALCifrTtmhqwz+BGQQ4POpb3AvwdBLBo9blr2NTuuDOFpv1466jjBVH/?= =?us-ascii?Q?g5Nn+878454Xp/0ox+snwbsDTN4SRsBsDdRSqG4iQ1WmWFAzCns3sNnJO+PR?= =?us-ascii?Q?ItmD+NmOfuraw1eknd6cbbtKyhRYGRTj+RWDHRMW8jTAf1dyvGJo5c0sVEir?= =?us-ascii?Q?qaxmtS1j/LjvQYUk3Saf4LssSVILckYtm6SEExkSCwTDHCh0BSsLDV3gBUuU?= =?us-ascii?Q?qoCR3HXYvBs68xUWAppUSKMSzLl/ZNPERQw5z8NxRLqrB1R4K8cTotZKjbSu?= =?us-ascii?Q?72WIqRIG3PKdn7x/ofTJP8oYsLyNnzvLyuniWuJGJBGR77XKv2szFZ5M0qIH?= =?us-ascii?Q?dq3z5bslQsOl8c6u1Nzf4xD/Lyjsg97gWIlbj+26JKgNceDIKkz87jlow5gQ?= =?us-ascii?Q?qapy2CRJ5J27Mx6wM1MGDaWMp52/ZmuEhNcEJS1ZeoNPlKQgPySEVLbkboda?= =?us-ascii?Q?d9liSY0ZOTh0ecHCd21Xi/l935nMJTkLZS8zFYwcC3+axyU1TdxGrZKtnJd1?= =?us-ascii?Q?OCvl8Nw33l8h8FaV/AgwqFOB5/MJzIKyAIPROK4LuSBNUMwJyGAXzTZtfd5q?= =?us-ascii?Q?yXAkwas0qANoK+azYY2V8GL4hF6S3Qk3RwrQkDMLvCh4U90nV9QVu4uBMFg6?= =?us-ascii?Q?B6pu3SNvwj8pKFhRvriyNur4xgThnE+8t086XWB4mheZWwOnajc9+ywyAgH0?= =?us-ascii?Q?TNcnVGlXdaJU9eAP8wS2D/eEjAdpAC8ethH+UQguS6Rels2z2PjcUa7yEKcp?= =?us-ascii?Q?m+7vCuz++PMY4sxsBJFSsMKaxnehuhgkiCU9SP3SoTZw4w28mj2Pe1bIKwcy?= =?us-ascii?Q?kOTMRUOZjdb81Gv4OymLqTPuc+j4p0esp6ITH0l4tcNu3LTNzSP5Na0swGWo?= =?us-ascii?Q?ngZbFtLAV6hv/KxPqZzbYw2ITBO9N/xcTdrObGYpFap9beC+R9oKDkWaBr17?= =?us-ascii?Q?YMIMybBv7BMJfhfa+cQoME/t59lQ3Wuz4Y7YvXtGAXKZfqwO2vy/tILJb1z+?= =?us-ascii?Q?aUjsiAM4lgl1WTpNIT/1SmAzpLeSAYTyNtTfAHZkZNOYBXulcW0L+XbPC/Yj?= =?us-ascii?Q?mHWbh3scxx5ELoSWKOuIiPD+UwIDzesU8CPblRZfyZB1X4mqT6ZRSR154BVb?= =?us-ascii?Q?LJ82aaREic5vuxhoSd9d7NDpHNdB7NWFGLVxJ7aegOcwPltsjeKDRiPBlh9h?= =?us-ascii?Q?KypD3BiRg27zA1F6yWY2egV+uirwqtqurE6EpcNMRUFgxRoS50z8TaK6Bu43?= =?us-ascii?Q?7+kytD8NNsis7MV774BirZWEWWRSYFhJbBeF?= 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)(36860700013)(1800799024)(82310400026)(7416014)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Sep 2025 23:28:56.0165 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e43cfac9-3310-4b49-237a-08ddef2f7aea 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: CY4PEPF0000FCC3.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA3PR12MB9160 Content-Type: text/plain; charset="utf-8" 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 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 | 2 +- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 ++-- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/ar= m/arm-smmu-v3/arm-smmu-v3.h index 5c0b38595d209..96a23ca633cb6 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; =20 struct arm_smmu_domain *arm_smmu_domain_alloc(void); =20 +static inline void arm_smmu_domain_free(struct arm_smmu_domain *smmu_domai= n) +{ + 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/iomm= u/arm/arm-smmu-v3/arm-smmu-v3-sva.c index 6097f1f540d87..fc601b494e0af 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 @@ -365,6 +365,6 @@ struct iommu_domain *arm_smmu_sva_domain_alloc(struct d= evice *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/ar= m/arm-smmu-v3/arm-smmu-v3.c index 0016ec699acfe..08af5f2d1235a 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2498,7 +2498,7 @@ static void arm_smmu_domain_free_paging(struct iommu_= domain *domain) ida_free(&smmu->vmid_map, cfg->vmid); } =20 - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); } =20 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; =20 err_free: - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); return ERR_PTR(ret); } =20 --=20 2.43.0