ddi_device_copy(9F)

 int ddi_device_copy(ddi_acc_handle_t src_handle,
   caddr_t src_addr, ssize_t src_advcnt,
   ddi_acc_handle_t dest_handle, caddr_t dest_addr,
   ssize_t dest_advcnt, size_t bytecount, uint_t dev_datasz);

The src_advcnt, dest_advcnt, dev_datasz arguments have changed type. These were previously defined as long, long and ulong_t respectively.