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authorIdo Schimmel <idosch@mellanox.com>2017-05-26 08:37:23 +0200
committerDavid S. Miller <davem@davemloft.net>2017-05-26 15:18:44 -0400
commit1f51445af35e8477027d87ca015a10257b13f5a2 (patch)
tree58b6ad2c8b0ad4410776f23d2ba80877df9b11f4 /include/linux/if_bridge.h
parent5f9e27e60ed961fe28183d8fe600789f676b460d (diff)
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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.h9
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