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| 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 /include/linux/if_bridge.h | |
| parent | 5f9e27e60ed961fe28183d8fe600789f676b460d (diff) | |
| download | lwn-1f51445af35e8477027d87ca015a10257b13f5a2.tar.gz lwn-1f51445af35e8477027d87ca015a10257b13f5a2.zip | |
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 'include/linux/if_bridge.h')
| -rw-r--r-- | include/linux/if_bridge.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h index 0c16866a7aac..d6cd103eb165 100644 --- a/include/linux/if_bridge.h +++ b/include/linux/if_bridge.h @@ -80,4 +80,13 @@ static inline bool br_multicast_has_querier_adjacent(struct net_device *dev, } #endif +#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING) +bool br_vlan_enabled(const struct net_device *dev); +#else +static inline bool br_vlan_enabled(const struct net_device *dev) +{ + return false; +} +#endif + #endif |