[U-Boot] fdt performance

[Wolfgang Denk]

Dear Aaron Williams,

In message <525F8284.4000304 at caviumnetworks.com> you wrote:
> 
> Some of the checks in fdt_offset_ptr also look useless, such as if 
> ((offset + len) < offset) which will always be false, or
> if (p + len < p)

What happens if the "offset" or "p" point to addresses close to the
upper end of the address space, and adding "len" makes it wrap around?

Best regards,

Wolfgang Denk

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