It was initially added in r41367 by nbd.
SVN-Revision: 46828
+From: Felix Fietkau <nbd@openwrt.org>
+Subject: [PATCH] bridge: multicast to unicast
+
+Implement optinal multicast->unicast conversion for igmp snooping
+---
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -635,7 +635,8 @@ struct net_bridge_port_group *br_multica
+From: Felix Fietkau <nbd@openwrt.org>
+Subject: [PATCH] bridge: multicast to unicast
+
+Implement optinal multicast->unicast conversion for igmp snooping
+---
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -45,6 +45,7 @@ struct br_ip_list {
+From: Felix Fietkau <nbd@openwrt.org>
+Subject: [PATCH] bridge: multicast to unicast
+
+Implement optinal multicast->unicast conversion for igmp snooping
+---
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -46,6 +46,7 @@ struct br_ip_list {