Re: 2.6.20-rc6-mm1: linker error with arch_setup_additional_pages

[Andi Kleen]

> I think the easy and correct fix for this situation is defining
> CONFIG_ARCH_HAS_SETUP_ADDITIONAL_PAGES on x86_64 only if
> IA32_EMULATION is defined. (Because x86_64 proper doesn't seem to
> require arch_setup_additional_pages() only IA32 emulation requires
> it.)
>
> The patch below should fix it. (Please use attachment - less chance of
> whitespace issues. Sorry no control over mail client atm)

A more elegant solution would be to do away with the CONFIG
and switch to a weak function in the caller.

-Andi
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