On Fri, 28 Apr 2006, Andi Kleen wrote:
>
> Quoting jbeulich:
>
> The effect is not on the current user's parameter passing, but in the
> result the function may produce. If, say, for the PCI mmconfig and BIOS
> space, there is a (reserved) entry starting at E0000000 and being
> 20000000 in size, then as far as I can tell the function will return
> zero (rather than one).
Well, but that has nothing to do with the _calling_ convention.
That looks to be a totally internal bug to within e820_all_mapped().
I agree that the calling convention change would avoid the overflow
internally too, I just don't much like the explanation (and not
necessarily that it affects the caller, who doesn't much care).
Linus
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