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Mon, 18 May 2026 00:15:13 -0700 From: Tariq Toukan To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Mark Bloch , "Moshe Shemesh" , Akiva Goldberger , , , , Gal Pressman , Dragos Tatulea , Simon Horman Subject: [PATCH net-next V2 4/8] net/mlx5: Switch vport HCA cap helpers to kvzalloc Date: Mon, 18 May 2026 10:13:52 +0300 Message-ID: <20260518071356.345723-5-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20260518071356.345723-1-tariqt@nvidia.com> References: <20260518071356.345723-1-tariqt@nvidia.com> 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: BN3PEPF0000B373:EE_|CY8PR12MB7363:EE_ X-MS-Office365-Filtering-Correlation-Id: f0dc51c7-a728-4ecb-0b77-08deb4ad3e8f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|7416014|36860700016|1800799024|56012099003|11063799003|22082099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(376014)(7416014)(36860700016)(1800799024)(56012099003)(11063799003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: H92rQlT2KEltwA/QvBzVSpDEojJ+IVLBnDrSRHY+ps1gr28qhACVDKV3kQmZh2Ujp/2qiMfaF3HW9aM7BxhNpD8t2RiuwEwlFmaRPdkNkcaEGYzhOkPcV/fcTCqUvtoAPQl7EDgFbzyTF51LpanZ7n99fmE273ORKIh4JXqW2yQUUAqwhc+n07CI83hr5ao143Tk3oo+nFF741S0OnABsnAqYljWjY2TRR3rhAgVVCbq5K0q+r5vvl/dcHAVBex5r5cFm5Xqg2jNlNdHnR7Pg2A/s85wNf9Sr6VRKWIeA/brxOmuq9mDGRviBP00hz4aTb3sHkDaRCthF3p+dh/zL6blMkPbSEutUi8732vsCg9xO2JvrIhMK4c38vSOXBjvFyCEX/aAAdBsjyHKPZjL5BhOR7YuR1RfkRr5Xm98lgCcFgQprTzJ1epNxc7SKF1B X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 May 2026 07:15:30.3042 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f0dc51c7-a728-4ecb-0b77-08deb4ad3e8f X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B373.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7363 From: Moshe Shemesh mlx5_vport_set_other_func_cap() and mlx5_vport_get_vhca_id() allocate command buffers that embed the HCA capability union, exceeding 4KiB. Use kvzalloc/kvfree so the allocation can fall back to vmalloc when contiguous memory is scarce. Signed-off-by: Moshe Shemesh Signed-off-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/vport.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c index 4effe37fd455..f8e6b1ab7c5c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c @@ -1336,7 +1336,7 @@ int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id) if (mlx5_esw_vport_vhca_id(dev->priv.eswitch, vport, vhca_id)) return 0; - query_ctx = kzalloc(query_out_sz, GFP_KERNEL); + query_ctx = kvzalloc(query_out_sz, GFP_KERNEL); if (!query_ctx) return -ENOMEM; @@ -1348,7 +1348,7 @@ int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id) *vhca_id = MLX5_GET(cmd_hca_cap, hca_caps, vhca_id); out_free: - kfree(query_ctx); + kvfree(query_ctx); return err; } EXPORT_SYMBOL_GPL(mlx5_vport_get_vhca_id); @@ -1363,7 +1363,7 @@ int mlx5_vport_set_other_func_cap(struct mlx5_core_dev *dev, const void *hca_cap void *set_ctx; int ret; - set_ctx = kzalloc(set_sz, GFP_KERNEL); + set_ctx = kvzalloc(set_sz, GFP_KERNEL); if (!set_ctx) return -ENOMEM; @@ -1392,6 +1392,6 @@ int mlx5_vport_set_other_func_cap(struct mlx5_core_dev *dev, const void *hca_cap MLX5_SET(set_hca_cap_in, set_ctx, function_id, function_id); ret = mlx5_cmd_exec_in(dev, set_hca_cap, set_ctx); - kfree(set_ctx); + kvfree(set_ctx); return ret; } -- 2.44.0