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SubjectRe: Suspicious compilation warning
Hi,

On Tue, Apr 20, 2010 at 20:07, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
>
> Well, it'll be about this number on everything using sparsemem extreme:
>
> #define SECTIONS_PER_ROOT       (PAGE_SIZE / sizeof (struct mem_section))
>
> and with only 32 sections, this is going to give a NR_SECTION_ROOTS value
> of zero.  I think the calculation of NR_SECTIONS_ROOTS is wrong.
>
> #define NR_SECTION_ROOTS        (NR_MEM_SECTIONS / SECTIONS_PER_ROOT)
>
> Clearly if we have 1 mem section, we want to have one section root, so
> I think this division should round up any fractional part, thusly:
>
> #define NR_SECTION_ROOTS        ((NR_MEM_SECTIONS + SECTIONS_PER_ROOT - 1) / SECTIONS_PER_ROOT)

Seems correct to me, Is there any idea when this gets committed?

Regards,
Marcelo.
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