[PATCH 0/4] yaboot tftp-boot extensions and ipv6 support

[Chandra Seetharaman]

Hello All,

This set of patches fixes ipv4 behavior to handle boot parameters appropriately
and adds support for ipv6 tftp boot parameters.

1/4 - Fix the arguments to open function so that the following
      patches will be easier to read and review. No functional change.
2/4 - Handle tftp boot parameters provided by the user appropriately (for ipv4).
3/4 - Move the extraction of ipv4 arguments to a separate function, for
      easy readability of the next patch. No functional change.
4/4 - Add support for ipv6 tftp boot parameters.

ipv4 and ipv6 tftp boot parameters are tested in the following hardware with
the specified firmware version:
	IBM BladeCenter JS22 Express - Model 799861X
	Firmware version  EA330_031

ipv4's current behavior is also tested to be working properly.

regards,

chandra