net/mlx5e: Remove WARN_ON when trying to offload an unsupported TLS cipher/version

[ Upstream commit 115d9f95ea ]

The driver reports whether TX/RX TLS device offloads are supported, but
not which ciphers/versions, these should be handled by returning
-EOPNOTSUPP when .tls_dev_add() is called.

Remove the WARN_ON kernel trace when the driver gets a request to
offload a cipher/version that is not supported as it is expected.

Fixes: d2ead1f360 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c

@@ -16,7 +16,7 @@ static int mlx5e_ktls_add(struct net_device *netdev, struct sock *sk,
 	struct mlx5_core_dev *mdev = priv->mdev;
 	int err;
 
-	if (WARN_ON(!mlx5e_ktls_type_check(mdev, crypto_info)))
+	if (!mlx5e_ktls_type_check(mdev, crypto_info))
 		return -EOPNOTSUPP;
 
 	if (direction == TLS_OFFLOAD_CTX_DIR_TX)