static inline uint8_t flow_is_proto(struct ndpi_flow_struct *flow, u_int16_t p) {
  return((flow->detected_protocol_stack[0] == p) || (flow->detected_protocol_stack[1] == p));
}
static inline uint8_t flow_is_proto(struct ndpi_flow_struct *flow, u_int16_t p) {
  return((flow->detected_protocol_stack[0] == p) || (flow->detected_protocol_stack[1] == p));
}