the generic layer 4 and layer 3 management system. This should make the layer 4 driver API LKM clean - finaly. Make the Fritz!PCI driver work again after resent changes (oops!), noted by Frank Kardel (PR 15948) and Matthias Scheeler.
and functions, use the call ID instead.
newly added I4B_ACTIVE_DIAGNOSTIC_MAXPARAMLEN (currently 64KB).