BR_NEIGH_VLAN_SUPPRESS
if (p->flags & (BR_NEIGH_SUPPRESS | BR_NEIGH_VLAN_SUPPRESS)) {
if (p->flags & BR_NEIGH_VLAN_SUPPRESS) {
if (mask & (BR_NEIGH_SUPPRESS | BR_NEIGH_VLAN_SUPPRESS))
!!(p->flags & BR_NEIGH_VLAN_SUPPRESS)))
BR_NEIGH_VLAN_SUPPRESS);