BR_MULTICAST_TO_UNICAST
if (port->flags & BR_MULTICAST_TO_UNICAST) {
if (!(port->flags & BR_MULTICAST_TO_UNICAST))
!!(p->flags & BR_MULTICAST_TO_UNICAST)) ||
BR_MULTICAST_TO_UNICAST);
BR_HAIRPIN_MODE | BR_ISOLATED | BR_MULTICAST_TO_UNICAST)
BRPORT_ATTR_FLAG(multicast_to_unicast, BR_MULTICAST_TO_UNICAST);