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Sat, 8 Nov 2025 00:08:18 -0800 From: Nicolin Chen To: CC: , , , , , , , , , , , Subject: [PATCH v5 2/7] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Date: Sat, 8 Nov 2025 00:08:03 -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: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF00002315:EE_|DM4PR12MB8499:EE_ X-MS-Office365-Filtering-Correlation-Id: c3d8357a-0bad-4a7f-ee79-08de1e9dfc1a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|7416014|376014|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?+3qLre1b/t2id0ZBLRpqcGudmqDIPBioCFBR8WizKe+PKKzUhcxZkoQIejyN?= =?us-ascii?Q?W8IXtdnuGgOI9ciZZ5FxcLS9haO6BU7gHC91E41wZyZA7nm8rcKTZeLZsjpF?= =?us-ascii?Q?EYvaG2XGdqYZd8VISu0tjYOksyw0Dg2LLvZz/vD0nEoY8Y/D19CBikk1GIxQ?= =?us-ascii?Q?xFSDCgthYjnHthu2FxYwChGEJrm3U4k+Omp66HK/ETVIwpb4Ay6o4DXoFWX6?= =?us-ascii?Q?ZtmojylT6+tb0RBLo2EWyWg+ye2JqMS6Q7NAdRynkZH5L4CbC96Hwvq3pExK?= =?us-ascii?Q?/c1LZ8ef+KLAWedexOVGmfrA9c6u7+3vkR0LfBRXni+cXJ20t20wdCzwILv8?= =?us-ascii?Q?XceIm/fPgAJ6sTvPWPN4dqGDOKjw1pkava8Fvz4YXFirwstkxbhlihl33lNt?= =?us-ascii?Q?cZoSJ+W+HJOlEmPPcNy0dsR0ar6Jp/GSaisz5XWRh9xoHc3+F+OhYKIS4Q2o?= =?us-ascii?Q?RPuySbQ3SDeOi8Rc1uZ5bmlK10VJgqQca6+tx9BoFg+cvuExdcurgSWj5rjA?= =?us-ascii?Q?e87JrkWjlh/CAOamY7t15hdKmblVDWqtnx9o/P3hApS+ASipDAi+45E3Y+Jw?= =?us-ascii?Q?/B0THnJsR021E0tbTPIDM7sGNxj9F4DPXjuqmGsGm6jz5yLJUjYTHwr3CtPd?= =?us-ascii?Q?Ej7VQwboovBqFSFY30uyz9KUll27doopyKa7cFvLGcB2HKtK51OLS5efaUn5?= =?us-ascii?Q?wj6+/GfAa2QeoQYMrJG2qYjl8R2cmA6EshifaNc06sLW0r7/6MJInFr4ohNo?= =?us-ascii?Q?c8nVhCVuqI3tbJ4GvOkwXB18cYy9IQHo2IbzbXMLgNStRj2Wvn3qzdMR3UoJ?= =?us-ascii?Q?B+zR7TYzxDxjqkVy0umcJWHeySvhU7/a+81Ty9csIKbjKi8tBiHl87F+wYyC?= =?us-ascii?Q?uRib9PRwykID+221ubrCJA2Qvru3+/IZJk1QIyy6ScLJbwOLf/82wIsMK9Hd?= =?us-ascii?Q?fLAQG/YfAfYvKj9wWveVVYUw7q8WwkgDSSzaKCIJX6Xj+jV3MIy9Lliejuh9?= =?us-ascii?Q?yZf+03xFbjzvGmm8Q4JiGNATHCW45IMGIcElitz3pWqfYKiqE9fseWi5cHwl?= =?us-ascii?Q?2rgQtAd5pruoTootMwgkpkIUwsiIHE6l01IQllcNjh8zfpLHGQAKfBGau/qi?= =?us-ascii?Q?w6DTacvGdjA5lpt/dOsxlM+1kVwLLBZuAU1eWxK9FGgtciIf14ElxbNX/wQ8?= =?us-ascii?Q?vmOz52Iat/j7efB1CHbhaLK9M2BPWFGOcQ4Mbfl0SLOHa0EWDARKA0v1+V5Q?= =?us-ascii?Q?PDzU2JlAvwICPIbqpTu4ypxUsShH/oCFJC4Uo853FBRzkB6fYbfE0HoRD/wM?= =?us-ascii?Q?o+m7QMBlFpptIhYXmFutqY7Sd26NJXiR2CrjBq5/OUV2YXLXt6SIr3bkuF7Z?= =?us-ascii?Q?R2o+D+7+XYV2sx/gcPZo6WHy3aKStvqVIEh+S4mbtUMhxhqtNlipEBkc+hdR?= =?us-ascii?Q?eJSSBK7hOMH9/gI6T0nggtYRmY7WDdWXoCrxIAgR5Ka75+a2t3Lzuha2HTBO?= =?us-ascii?Q?dUr+J5PrX/MmT+IupI0C6ItH8ZjsIXYAwPIkv3lf6AYOdclGERrM2mcbT07N?= =?us-ascii?Q?swijV0ttC2GbBrOGY5I=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)(82310400026)(36860700013)(7416014)(376014)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Nov 2025 08:08:22.1088 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c3d8357a-0bad-4a7f-ee79-08de1e9dfc1a 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: SJ1PEPF00002315.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB8499 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 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 | 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