Dear Alexey,
In message 1391193816.4721.100.camel@abrodkin-8560l you wrote:
CONFIG_ETHADDR & CONFIG_IPADDR - it's simple - we don't want to have duplicates of the same MAC or/and IP address within one network. So definitely these ones must go away.
But others doesn't affect other devices in the network so why don't we leave them as well?
It seems only consequent to omit all settings specific to the network interface: addresses, netmask, etc. And if you do not set an IP address, it does not make sense to set a netmask, right?
Hostname (set to generic board name) is in so far somewhat of an exception as quite a lot of people appear to use this to organize their TFTP download directories.
It is difficult to give simple rules for these things. There is a lot of habits and decade old traditions involved, so please don't ask me for some formally defined rule sets.
Best regards,
Wolfgang Denk