To make users (e.g. batman-adv soon) load- and runnable even if the bridge was compiled without snooping capabilities - or even if the kernel was compiled without any bridge code at all.
Signed-off-by: Linus Lüssing linus.luessing@web.de --- include/linux/if_bridge.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h index fd22789..e0c575c 100644 --- a/include/linux/if_bridge.h +++ b/include/linux/if_bridge.h @@ -36,8 +36,22 @@ extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __use
typedef int br_should_route_hook_t(struct sk_buff *skb); extern br_should_route_hook_t __rcu *br_should_route_hook; + +#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING) int br_multicast_list_adjacent(struct net_device *dev, struct list_head *br_ip_list); bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto); +#else +static inline int br_multicast_list_adjacent(struct net_device *dev, + struct list_head *br_ip_list) +{ + return 0; +} +static inline bool br_multicast_has_querier_adjacent(struct net_device *dev, + int proto) +{ + return false; +} +#endif
#endif