netdev - [PATCH mlx5-next 01/27] net/mlx5: Cleanup flow namespace getter switch logic

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Date:   Sun, 29 Jul 2018 15:58:39 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>
Cc:     Leon Romanovsky <leonro@...lanox.com>,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Guy Levi <guyle@...lanox.com>, Mark Bloch <markb@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        linux-netdev <netdev@...r.kernel.org>
Subject: [PATCH mlx5-next 01/27] net/mlx5: Cleanup flow namespace getter switch logic

From: Mark Bloch <markb@...lanox.com>

Refactor the switch logic so it's simpler to follow and understand.

Signed-off-by: Mark Bloch <markb@...lanox.com>
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 0d8378243903..17bbad8ee882 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -1976,7 +1976,7 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 						    enum mlx5_flow_namespace_type type)
 {
 	struct mlx5_flow_steering *steering = dev->priv.steering;
-	struct mlx5_flow_root_namespace *root_ns;
+	struct mlx5_flow_root_namespace *steering_ns = NULL;
 	int prio;
 	struct fs_prio *fs_prio;
 	struct mlx5_flow_namespace *ns;
@@ -1992,37 +1992,33 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 	case MLX5_FLOW_NAMESPACE_KERNEL:
 	case MLX5_FLOW_NAMESPACE_LEFTOVERS:
 	case MLX5_FLOW_NAMESPACE_ANCHOR:
+		steering_ns = steering->root_ns;
 		prio = type;
 		break;
 	case MLX5_FLOW_NAMESPACE_FDB:
 		if (steering->fdb_root_ns)
 			return &steering->fdb_root_ns->ns;
-		else
-			return NULL;
+		break;
 	case MLX5_FLOW_NAMESPACE_SNIFFER_RX:
 		if (steering->sniffer_rx_root_ns)
 			return &steering->sniffer_rx_root_ns->ns;
-		else
-			return NULL;
+		break;
 	case MLX5_FLOW_NAMESPACE_SNIFFER_TX:
 		if (steering->sniffer_tx_root_ns)
 			return &steering->sniffer_tx_root_ns->ns;
-		else
-			return NULL;
+		break;
 	case MLX5_FLOW_NAMESPACE_EGRESS:
 		if (steering->egress_root_ns)
 			return &steering->egress_root_ns->ns;
-		else
-			return NULL;
+		break;
 	default:
-		return NULL;
+		break;
 	}
 
-	root_ns = steering->root_ns;
-	if (!root_ns)
+	if (!steering_ns)
 		return NULL;
 
-	fs_prio = find_prio(&root_ns->ns, prio);
+	fs_prio = find_prio(&steering_ns->ns, prio);
 	if (!fs_prio)
 		return NULL;
 
-- 
2.14.4