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@xxxxxx>
---
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
--
1.7.10.4
