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[81.108.45.148]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e538acbfcsm1454165e9.8.2026.05.05.17.01.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 May 2026 17:01:10 -0700 (PDT) From: Prathamesh Deshpande To: Saeed Mahameed , Leon Romanovsky Cc: Moshe Shemesh , Tariq Toukan , Mark Bloch , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Prathamesh Deshpande Subject: [PATCH net v1] net/mlx5: HWS: Reject unsupported remove-header action Date: Wed, 6 May 2026 01:00:31 +0100 Message-ID: <20260506000054.51797-1-prathameshdeshpande7@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit mlx5_cmd_hws_packet_reformat_alloc() handles MLX5_REFORMAT_TYPE_REMOVE_HDR by looking up a matching HWS remove-header action. If mlx5_fs_get_action_remove_header_vlan() returns NULL, the code only logs an error and continues. The function then returns success with a NULL HWS action stored in the packet-reformat object. Return an error when no matching remove-header action is available. Fixes: aecd9d1020e3 ("net/mlx5: fs, add HWS packet reformat API function") Signed-off-by: Prathamesh Deshpande --- drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c index aca77853abb8..5a172c572a68 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c @@ -1320,8 +1320,10 @@ mlx5_cmd_hws_packet_reformat_alloc(struct mlx5_flow_root_namespace *ns, break; case MLX5_REFORMAT_TYPE_REMOVE_HDR: hws_action = mlx5_fs_get_action_remove_header_vlan(fs_ctx, params); - if (!hws_action) + if (!hws_action) { mlx5_core_err(dev, "Only vlan remove header supported\n"); + return -EOPNOTSUPP; + } break; default: mlx5_core_err(ns->dev, "Packet-reformat not supported(%d)\n", -- 2.43.0