[libfdt] RFC: Node iterators (v2)

[Scott Wood]

David Gibson wrote:
> And here's a revised version.  This now also handles recursive
> iteration and iteration across nodes without respect to depth.  I've
> removed the for_each() macros for the time being, because they were
> making my brain hurt, but I'm still contemplating bringing them back.
> Several libfdt functions are now implemented using the new iterator,
> so this ends up as a code-size-reducing patch.
> 
> I'm pretty happy with the basic outline of this now, although the
> names and details might want a bit of polish still.

Can we get this merged?

> +int _fdt_next_node(const void *fdt, int offset, int *depth)
> +{

This is a public function; why the underscore?

-Scott