diff options
| author | Ido Schimmel <idosch@mellanox.com> | 2017-05-26 08:37:23 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-26 15:18:44 -0400 |
| commit | 1f51445af35e8477027d87ca015a10257b13f5a2 (patch) | |
| tree | 58b6ad2c8b0ad4410776f23d2ba80877df9b11f4 /net/bridge/br_vlan.c | |
| parent | 5f9e27e60ed961fe28183d8fe600789f676b460d (diff) | |
bridge: Export VLAN filtering state
It's useful for drivers supporting bridge offload to be able to query
the bridge's VLAN filtering state.
Currently, upon enslavement to a bridge master, the offloading driver
will only learn about the bridge's VLAN filtering state after the bridge
device was already linked with its slave.
Being able to query the bridge's VLAN filtering state allows such
drivers to forbid enslavement in case resource couldn't be allocated for
a VLAN-aware bridge and also choose the correct initialization routine
for the enslaved port, which is dependent on the bridge type.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_vlan.c')
| -rw-r--r-- | net/bridge/br_vlan.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index b838213c408e..26a1a56639b2 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -706,6 +706,14 @@ int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val) return __br_vlan_filter_toggle(br, val); } +bool br_vlan_enabled(const struct net_device *dev) +{ + struct net_bridge *br = netdev_priv(dev); + + return !!br->vlan_enabled; +} +EXPORT_SYMBOL_GPL(br_vlan_enabled); + int __br_vlan_set_proto(struct net_bridge *br, __be16 proto) { int err = 0; |