netdev - [PATCH net-next v4 3/8] mlxsw: spectrum_switchdev: Ignore bridge VLAN events

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Date:   Wed, 30 May 2018 02:57:46 +0200
From:   Petr Machata <petrm@...lanox.com>
To:     netdev@...r.kernel.org, devel@...verdev.osuosl.org,
        bridge@...ts.linux-foundation.org
Cc:     jiri@...lanox.com, idosch@...lanox.com, davem@...emloft.net,
        razvan.stefanescu@....com, gregkh@...uxfoundation.org,
        stephen@...workplumber.org, andrew@...n.ch,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        nikolay@...ulusnetworks.com, dan.carpenter@...cle.com
Subject: [PATCH net-next v4 3/8] mlxsw: spectrum_switchdev: Ignore bridge VLAN
 events

A follow-up patch enables emitting VLAN notifications for the bridge CPU
port in addition to the existing slave port notifications. These
notifications have orig_dev set to the bridge in question.

Because there's no specific support for these VLANs, just ignore the
notifications to maintain the current behavior.

Signed-off-by: Petr Machata <petrm@...lanox.com>
Reviewed-by: Ido Schimmel <idosch@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 8c9cf8e..cbc8fab 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1144,6 +1144,9 @@ static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 	struct mlxsw_sp_bridge_port *bridge_port;
 	u16 vid;
 
+	if (netif_is_bridge_master(orig_dev))
+		return -EOPNOTSUPP;
+
 	if (switchdev_trans_ph_prepare(trans))
 		return 0;
 
@@ -1741,6 +1744,9 @@ static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
 	struct mlxsw_sp_bridge_port *bridge_port;
 	u16 vid;
 
+	if (netif_is_bridge_master(orig_dev))
+		return -EOPNOTSUPP;
+
 	bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
 	if (WARN_ON(!bridge_port))
 		return -EINVAL;
-- 
2.4.11