bridge: Prepare for 802.1ad vlan filtering support

This enables a bridge to have vlan protocol informantion and allows vlan
tag manipulation (retrieve, insert and remove tags) according to the vlan
protocol.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 82a410a..1b797c4 100644 (file)
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -388,4 +388,5 @@ void br_dev_setup(struct net_device *dev)
        br_netfilter_rtable_init(br);
        br_stp_timer_init(br);
        br_multicast_init(br);
+       br_vlan_init(br);
 }

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 8346e95..13e570e 100644 (file)
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -294,6 +294,7 @@ struct net_bridge
        u32                             auto_cnt;
 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
        u8                              vlan_enabled;
+       __be16                          vlan_proto;
        struct net_port_vlans __rcu     *vlan_info;
 #endif
 };
@@ -594,6 +595,7 @@ int br_vlan_delete(struct net_bridge *br, u16 vid);
 void br_vlan_flush(struct net_bridge *br);
 bool br_vlan_find(struct net_bridge *br, u16 vid);
 int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
+void br_vlan_init(struct net_bridge *br);
 int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags);
 int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
 void nbp_vlan_flush(struct net_bridge_port *port);
@@ -689,6 +691,10 @@ static inline bool br_vlan_find(struct net_bridge *br, u16 vid)
        return false;
 }
 
+static inline void br_vlan_init(struct net_bridge *br)
+{
+}
+
 static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags)
 {
        return -EOPNOTSUPP;

diff --cc net/bridge/br_vlan.c
Simple merge