[Bridge] [PATCH net-next v4 5/8] dsa: port: Ignore bridge VLAN events

[Petr Machata]

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 at mellanox.com>
Reviewed-by: Vivien Didelot <vivien.didelot at savoirfairelinux.com>
---
 net/dsa/port.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/dsa/port.c b/net/dsa/port.c
index 2413beb..ed05954 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -252,6 +252,9 @@ int dsa_port_vlan_add(struct dsa_port *dp,
 		.vlan = vlan,
 	};
 
+	if (netif_is_bridge_master(vlan->obj.orig_dev))
+		return -EOPNOTSUPP;
+
 	if (br_vlan_enabled(dp->bridge_dev))
 		return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_ADD, &info);
 
@@ -267,6 +270,9 @@ int dsa_port_vlan_del(struct dsa_port *dp,
 		.vlan = vlan,
 	};
 
+	if (netif_is_bridge_master(vlan->obj.orig_dev))
+		return -EOPNOTSUPP;
+
 	if (br_vlan_enabled(dp->bridge_dev))
 		return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info);
 
-- 
2.4.11