UDP_TUNNEL_NIC_ENTRY_FROZEN
entry->flags &= ~UDP_TUNNEL_NIC_ENTRY_FROZEN;
WARN_ON(entry->flags & UDP_TUNNEL_NIC_ENTRY_FROZEN);
return entry->use_cnt && !(entry->flags & ~UDP_TUNNEL_NIC_ENTRY_FROZEN);
return entry->flags & UDP_TUNNEL_NIC_ENTRY_FROZEN;
entry->flags |= UDP_TUNNEL_NIC_ENTRY_FROZEN;