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Wed, 23 Sep 2026 03:40:19 -0700 From: Tariq Toukan To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , , Paolo Abeni CC: Akiva Goldberger , Cosmin Ratiu , Gal Pressman , Leon Romanovsky , open list , , Mark Bloch , Moshe Shemesh , Or Har-Toov , Saeed Mahameed , Shay Drory , Tariq Toukan Subject: [PATCH net-next 06/13] net/mlx5: LAG, size debugfs buffers by port count Date: Wed, 23 Sep 2026 13:38:23 +0300 Message-ID: <20260923103830.1183-7-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20260923103830.1183-1-tariqt@nvidia.com> References: <20260923103830.1183-1-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: BN3PEPF00022BC5:EE_|DS7PR12MB5982:EE_ X-MS-Office365-Filtering-Correlation-Id: 26538e26-3af2-4592-3756-08df195f1d0b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|23010399003|36860700016|82310400026|10067099003|56012099006|11063799006|22082099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 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)(1800799024)(376014)(23010399003)(36860700016)(82310400026)(10067099003)(56012099006)(11063799006)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: e+zS5O1GvwedCHBA7AdohmEy0eXQy2I8Hby8tn6qqffFYQWJ9W+fw7kMySymKnSb4tiLww461I9R9GJiExBOQSXbgWgv8mRXUfkXG2smBIyYyWENbzOR3Q5RCMoDAY/WtBfTAA/va9WBwkX/8ULctHvHluuLa7UWtlL8dp01hgiucc78fPrbkVVsRJShish6yFG7jEugqM1pFkYAJTnfg+E8unVjyC1CuMCLg50/q/d6VUYuNpYvxqRp9wJtBqg+8HYGPO9wiUiqeDjaj4zEzDGuIuskwKiMrepkBTLJotH9SCW9OyOWkAfuGKyC3zrVVsEPhOq3y/llVKwUjnM690iMUgQkKD84eea4yDxDXCKdjaneuTIG0f7JyyDkTGwsvAho33xmkLiUt3HIabvNXu4cg3c1Q7M1YqFqgj2RVUdyN5rbL9HCInZiPiST077Y X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Sep 2026 10:40:40.7691 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 26538e26-3af2-4592-3756-08df195f1d0b 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: BN3PEPF00022BC5.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB5982 From: Shay Drory debugfs mapping_show() uses constant MLX5_MAX_PORTS to size ports array. Instead, allocate dynamically using actual number of ports. Signed-off-by: Shay Drory Reviewed-by: Moshe Shemesh Reviewed-by: Akiva Goldberger Signed-off-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c index e9b8d79d2d21..44296789d656 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c @@ -101,14 +101,18 @@ static int flags_show(struct seq_file *file, void *priv) static int mapping_show(struct seq_file *file, void *priv) { struct mlx5_core_dev *dev = file->private; - u8 ports[MLX5_MAX_PORTS] = {}; struct mlx5_lag *ldev; bool hash = false; bool lag_active; int i, idx = 0; int num_ports; + u8 *ports; ldev = mlx5_lag_dev(dev); + ports = kcalloc(ldev->ports, sizeof(*ports), GFP_KERNEL); + if (!ports) + return -ENOMEM; + mutex_lock(&ldev->lock); lag_active = __mlx5_lag_is_active(ldev); if (lag_active) { @@ -123,8 +127,10 @@ static int mapping_show(struct seq_file *file, void *priv) } } mutex_unlock(&ldev->lock); - if (!lag_active) + if (!lag_active) { + kfree(ports); return -EINVAL; + } for (i = 0; i < num_ports; i++) { if (hash) @@ -133,6 +139,7 @@ static int mapping_show(struct seq_file *file, void *priv) seq_printf(file, "%d:%d\n", i + 1, ports[i]); } + kfree(ports); return 0; } -- 2.44.0