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Wed, 13 Aug 2025 18:26:04 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , , , , Subject: [PATCH rfcv1 3/8] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Date: Wed, 13 Aug 2025 18:25:34 -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: SJ5PEPF000001F4:EE_|IA0PPF44635DB8D:EE_ X-MS-Office365-Filtering-Correlation-Id: e7c10e49-456d-430b-8e5d-08dddad193b7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|36860700013|82310400026|1800799024|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?uHJgskRqArwd7LY2NWF2dkQHv125ZIuIONnD+XOTQOFmitjQ1nd1Oeu5LyzU?= =?us-ascii?Q?OXtIxMFdnFayvv4ezVodzUvj2kXaGzYpxTpW4OT69QV0DShOOFDDpuy1Q+TL?= =?us-ascii?Q?0v1FazDfSaSisTkMBShYhxB1TzXfz4KiqxPHqYeQFS+NikQQg9ZXN7ocwB7t?= =?us-ascii?Q?jj/pb9SMSRM+HaQ4afsPDKZIww+4AcnYpLqO3mxsc6dUSpEmAQGzQJ2An4CI?= =?us-ascii?Q?nXkhiVeRSjlxjvDUu+yqQX4NX3rMtf/8UyenNkv/BuXgBHP5OFFklfLYRBl+?= =?us-ascii?Q?s4LaaYBzsZe2BY+yfsJ1m2BzfY40WfLsIm03CTdmw8vdeWxPyeSeAWZXSCno?= =?us-ascii?Q?17hXJcyOjb2K2W78tyZuxoQwWa1eE4tvfTg9fz5d2QT05LndffoYkknEMiGR?= =?us-ascii?Q?fm0qgZqvW62f5VIr94MBrhAHmu9KEmAujnVdS7wg1CZCQesKUJO4Bc3ZhtC+?= =?us-ascii?Q?CuWSf835Sy99l1N+MX+PR/eB1ElvKJqu9/IcZn1iG4zwQ7PR9BHwNJyRybPs?= =?us-ascii?Q?WLGDoHoskoHWUkBS8e2581Mz2+gM9EbC3iT78ItEh3/o7XULTonRzhD4FzTW?= =?us-ascii?Q?JfcKzzil+VecYv/+MXIgwksyHcLKT69HDicZpuQWfmaCbWEn1VrDiJAhQUJd?= =?us-ascii?Q?FUPaf6i/VScFHxNfAciRM6lhcaX6f65r+q5qM2YAJvzdJckW1Z7+syAFRNQY?= =?us-ascii?Q?MstqOHoE9EUEKh0Qh/dBuB+N4PdOKU0fabNfwAdBNQa1pleiaKF75TQp8Rd4?= =?us-ascii?Q?uk7R5bFmAqgzLfD9YphnmygY8cDM6F2IhS1b0iptsrpsPnrdZBDMp703WUx+?= =?us-ascii?Q?bZXSQb3SRywkt4lRQuKQQ+X54sOwRe7TTpa4PeuWKfrwjy4TLKGYmm38KbO4?= =?us-ascii?Q?PPSIOIdQzjfb3SVCkof5sadXwcGu/+jHqNKQY6idAsXpiWgjBml8sZzNVc1G?= =?us-ascii?Q?GzBf+bRwRBjHg3TpZjlsgjmJ7DJFpoNtvH0b74YstIr/lQVTqwdWFDE3TQMG?= =?us-ascii?Q?9Ew5SCk03//EhH4cXBh4zUPLQhUB+EI1BdhrKflDI1E1r9+1bcOgGEFo6QAs?= =?us-ascii?Q?ySV9Lz/k7OZoSYJ42Pn9L8qZTbS2PIl6BkMWwoik0g7XMbE6LULyxAdgjPiv?= =?us-ascii?Q?zFNi9fv3qaodyYB4z4yRn1FdAjiQWITgmQwzuMtwL7zbb2E00aUVwNXXDfPR?= =?us-ascii?Q?OFBcTM/3hSqRAgVujuBOaeQGIU0KgPoh6qdC7WDP5L6hFaynKIAmz7Hyq4ij?= =?us-ascii?Q?6y2unRHwOMw+RB4xYfLINq/mUZpFZjUF+7PUAWdbOjjp8xPqFHIQV97VvaFA?= =?us-ascii?Q?auDIgCetOqWyF2ZeK+fLf9Qvd0XfykGaa1K4eHzVXVYEexIzcPtg1zebb+lH?= =?us-ascii?Q?x9C4uEhOHy9zCY5Vja+zgCgtpbXOI+L25sfYDhh9Syu2/icY1VnD0PajqgKe?= =?us-ascii?Q?pOH3/qOsGy1WoAnQMRtR8zLqXE6l72muZGzR+4BsT3h0SmQegf6TkDH+DgD0?= =?us-ascii?Q?rrzQBc0kZZ3eyENqbyZrNbVYLrMDEqTYNtJx?= 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)(7416014)(36860700013)(82310400026)(1800799024)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Aug 2025 01:26:21.6454 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e7c10e49-456d-430b-8e5d-08dddad193b7 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: SJ5PEPF000001F4.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PPF44635DB8D 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