[lwip-members] pbuf alloc question

[Jani Monoses]

In pbuf alloc the offset is calculated depending on the layer we ask.
Shouldn't the link len addition be under the PBUF_LINK case instead of
under PBUF_IP?
Now this is defined as 0 so it's the same.BTW when would this value be > 0?
Thanks


  switch(l) {
  case PBUF_TRANSPORT:
    offset += PBUF_TRANSPORT_HLEN;
    /* FALLTHROUGH */
  case PBUF_IP:
    offset += PBUF_IP_HLEN;
    offset += PBUF_LINK_HLEN;
    /* FALLTHROUGH */
  case PBUF_LINK:
    break;
  case PBUF_RAW:
    break;
  default:
    ASSERT("pbuf_alloc: bad pbuf layer", 0);
    return NULL;
  }