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Wed, 15 Oct 2025 12:43:02 -0700 From: Nicolin Chen To: , CC: , , , , , , , , , , Subject: [PATCH v3 2/7] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Date: Wed, 15 Oct 2025 12:42:47 -0700 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: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000A6730:EE_|SJ5PPF28EF61683:EE_ X-MS-Office365-Filtering-Correlation-Id: 2a9bff2f-970f-4028-e4df-08de0c231915 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|82310400026|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?Jbd5bmYe0iIHZ5sjeF2TAXoqMapziwaVQ1iJZlSCfLfojug1+T89+qhwg7+Q?= =?us-ascii?Q?jdvlkSu3aUt4TcLWMYcjRnx5UFSMExuxKSDvOkZKkWKo+jCadW2deeCRX1o9?= =?us-ascii?Q?4Zyn2BK+/bXhLJcNTP/7IzPWjlw0AK9aorCKCy5mRGOUKeAT0pw4o2dLGX1t?= =?us-ascii?Q?HdfQk9f0xi1KYSBLyicDGhcINUQTT7sQfweR5P22qHJrMei9piBhldU+Jmr4?= =?us-ascii?Q?ctAoRFXvJLzr1yX2i9M2UVFBmP0SM0QYwS4p/9QyRF/L1erL7b4WP+baCpbv?= =?us-ascii?Q?uNwDzXvo+uLOJxuUksqEkqh9GgFVcpSC8kJg10kh1G4D4lLUNG74qLgRxT/a?= =?us-ascii?Q?xMUIMZ07JIAKGaAL+HZN/q+5k0mSfsLLP9YS+77WBVOw9nQcWRTwMZFozhU+?= =?us-ascii?Q?kLalymuhTP1BTl3xuP+ByFl6/ur1NmhADG/QAiBB9HNv7+Cn0guN/sIG8Phl?= =?us-ascii?Q?QV/TPs4jPu2jcWbxdZNJ9KMvTZ9SjIvCrP+yDkJKejHH2RfdanBG5EUUCwRW?= =?us-ascii?Q?AcDvYXtBhd0LzfCOSzb5UhsW16hnZXJpQdjTphc3dqRHdHh6Byc+jiq98VKG?= =?us-ascii?Q?BJsrLd97dzoU6sluAf1lk6gO5JBWpQP+Crjr4+m96nIHJkXcfGPJ/mjYXO7O?= =?us-ascii?Q?6UbUahsl6S1T+ovP8grwCBlYRl+bIMJeDZ0eLEHSz/pXltKmEiVS9vK/fzUL?= =?us-ascii?Q?WNzganACXRYkTABDVUAdEPeoeA+7RMAwt5Qm0B8TmDX+JXIrLAvjsodaOMtA?= =?us-ascii?Q?Otn1LREanI0mKrfVL+v3Ia/lpmN2UCgWP90b4wcd30dDCIrc04H4bfLdSHOI?= =?us-ascii?Q?nCilisTOuVLxQWyjj1Qp0SD1neQOR4JHyP8KWRPla6+vPixcK/aJGec5DIwH?= =?us-ascii?Q?nNGg+fstvpQ0CN6ZO4oaSWWfR6DOjvZccv81+KHGTRf7ftAhfoU3wIF4vC1W?= =?us-ascii?Q?g+do/aP7vZI8XuKspgF0M7V74wK9LBjTkixWkSxt4cwTFWAL1T2rhtIq1Ush?= =?us-ascii?Q?1qiYrKolTU298DkiJztNl2uAyc1FbobxYa31KJuaNZTDaCxfa8kcjTq/hwIk?= =?us-ascii?Q?o2LUpjsweh6Vt7xld0O9C+zrQavaBFBKwehrfqnzFrsQFyrusLtgG4HjHRQD?= =?us-ascii?Q?GUfas1Cl8AELBgRD/020XDPncCVlwkLLB/tCXUHpoELSIoJnAmsY5X7nc7eP?= =?us-ascii?Q?QxqjvUlBPJQ5+Of6vqE3fRow2GI2TTBFDHBVvYBwWBqyokAXXtdgWjsgZ68y?= =?us-ascii?Q?vytJehN8W2nsaVDCkAMC61ENFe8Wigh055aawBHhXdcP4MS+ppM06miH0uY4?= =?us-ascii?Q?UpVOjJNvbm3L9bao0EdZA8T1fnmbdo8QHZTVRrcCZIJDQMhB9O2ao7cKCMey?= =?us-ascii?Q?XrYCssykcV3BmqUu4xDSIpyThqkUUwHfuj8YtxBTs9Z9MV/rknLk3XyKLvc7?= =?us-ascii?Q?SuLr9v0jlxjcmL+UUIx7j9ZTmjoKoPkwTMCDHqL0lMv/p6ogkzLdj4q9NxPp?= =?us-ascii?Q?Kw1agvZRtUIa8bDIfNakB2jEsqg9oPR8F8TNyCvsfN/E7qSCM1NurWYhRd2Z?= =?us-ascii?Q?oc+cr+9xrGD7STWMd18=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(82310400026)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Oct 2025 19:43:21.5989 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2a9bff2f-970f-4028-e4df-08de0c231915 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000A6730.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ5PPF28EF61683 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 Reviewed-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 0312bb79f1247..00d43080efaa8 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); } =20 - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); } =20 static int arm_smmu_domain_finalise_s1(struct arm_smmu_device *smmu, @@ -3353,7 +3353,7 @@ 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