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Tue, 16 Jun 2026 23:32:15 -0700 From: Tariq Toukan To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Saeed Mahameed , Tariq Toukan , "Mark Bloch" , Leon Romanovsky , Shay Drory , Or Har-Toov , Edward Srouji , Simon Horman , Maher Sanalla , Patrisious Haddad , Parav Pandit , Gerd Bayer , Kees Cook , Moshe Shemesh , Rongwei Liu , Jacob Keller , , , , Gal Pressman Subject: [PATCH net 0/3] net/mlx5: LAG bug fixes Date: Wed, 17 Jun 2026 09:32:01 +0300 Message-ID: <20260617063204.547427-1-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 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: SJ1PEPF000026C7:EE_|IA1PR12MB7685:EE_ X-MS-Office365-Filtering-Correlation-Id: 4776bafb-aaff-494e-c07e-08decc3a3540 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|36860700016|82310400026|23010399003|376014|1800799024|56012099006|11063799006|18002099003; X-Microsoft-Antispam-Message-Info: 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 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)(36860700016)(82310400026)(23010399003)(376014)(1800799024)(56012099006)(11063799006)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: S3DiJCcx6HUiTSFAzclmHt/xZRljotktXguoA/NlcI3eTEpXxXFVBORb0Tu2lhQHeP4Pv6T2aQ7pB0/z6z+bss3szpN6FQhFftFykV8BScQ2pRkBjcTFgnft8M4TbCTeoIh0ClXauEMN/Ud4X7pO+KnGarDU2vOfg+frFEMOtd+9ptuZEg51HewDFbpvY/GqG3qrPbp9C5+f6Gf1EkpGxTYgMBKB3HNYK2kPPPGbgdkYWgcWnq/4ssJX2wd5oCQvxZpqHbqZImJYMzXt5g5ZB+HCBGmUwCcf06Me/Xo+XfSsuI/FJN5O8Hpt6KUNvIw+eLH6aE6b1he4cA/u4TKDDNgsDYq3rLMfQTOb53+PH/EzZViHHfzv/TAzGUcyrg8rqqWTigFpAO/DoA7zaNGmtrMitarfZFz8VcXLMSqpUgLxZuC8QymRsW+TFOxzR7v5 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jun 2026 06:32:30.5688 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4776bafb-aaff-494e-c07e-08decc3a3540 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: SJ1PEPF000026C7.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB7685 Hi, Three bug fixes by Shay in the mlx5 LAG subsystem. Patch 1 fixes an off-by-one in the error rollback path of mlx5_lag_create_single_fdb(): the loop started from the failed index i, potentially operating on uninitialized state or double-tearing-down an entry that had already self-rolled-back. The rollback should start from i - 1. Patch 2 fixes a hang in mlx5_mpesw_work(): when mlx5_lag_get_devcom_comp() returns NULL the function returned early without calling complete(), blocking any caller waiting on mpesww->comp indefinitely. Patch 3 fixes a kernel crash during teardown when mlx5_lag_get_dev_seq() returns an error because no device is marked as master or the peer is no longer in the LAG. The peer flow cleanup is now skipped instead of proceeding with a bad pointer. Regards, Tariq Shay Drory (3): net/mlx5: LAG, Fix off-by-one in single-FDB error rollback net/mlx5: LAG, MPESW, Fix missing complete() on devcom error net/mlx5e: TC, skip peer flow cleanup when LAG seq is unavailable drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 6 ++++++ drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c | 7 +++++-- 3 files changed, 12 insertions(+), 3 deletions(-) base-commit: 0068940907d33217ae01217f84910a5cde606c17 -- 2.44.0