overwrites the IDPROM with random ethernet-mac / serial
look at the source if you want other values...
just make and load with insmod:
$ make
$ insmod idprom-repair.ko
$ dmesg | tail
found eeprom on ebus: addr: 0x1FFF1000000 - 0x1FFF1001FFF
IDPROM: HostID: 83da60af Serial: 12917598
IDPROM: Ethernet address: 00:03:ba:da:60:af