From 48d57b2e5f439246c4e12ed7705a5e3241294b03 Mon Sep 17 00:00:00 2001 From: Tobias Waldekranz Date: Wed, 16 Mar 2022 16:08:50 +0100 Subject: net: bridge: mst: Add helper to check if MST is enabled This is useful for switchdev drivers that might want to refuse to join a bridge where MST is enabled, if the hardware can't support it. Signed-off-by: Tobias Waldekranz Reviewed-by: Vladimir Oltean Acked-by: Nikolay Aleksandrov Signed-off-by: Jakub Kicinski --- include/linux/if_bridge.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h index 1cf0cc46d90d..4efd5540279a 100644 --- a/include/linux/if_bridge.h +++ b/include/linux/if_bridge.h @@ -119,6 +119,7 @@ int br_vlan_get_info(const struct net_device *dev, u16 vid, struct bridge_vlan_info *p_vinfo); int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid, struct bridge_vlan_info *p_vinfo); +bool br_mst_enabled(const struct net_device *dev); int br_mst_get_info(const struct net_device *dev, u16 msti, unsigned long *vids); #else static inline bool br_vlan_enabled(const struct net_device *dev) @@ -153,6 +154,11 @@ static inline int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid, return -EINVAL; } +static inline bool br_mst_enabled(const struct net_device *dev) +{ + return false; +} + static inline int br_mst_get_info(const struct net_device *dev, u16 msti, unsigned long *vids) { -- cgit v1.2.3