Messages in this thread | | | Date | Tue, 20 Apr 2010 15:51:22 -0700 | From | Andrew Morton <> | Subject | Re: Suspicious compilation warning |
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On Mon, 19 Apr 2010 20:27:43 -0300 Marcelo Jimenez <mroberto@cpti.cetuc.puc-rio.br> wrote:
> I get this warning while compiling for ARM/SA1100: > > mm/sparse.c: In function '__section_nr': > mm/sparse.c:135: warning: 'root' is used uninitialized in this function > > With a small patch in fs/proc/meminfo.c, I find that NR_SECTION_ROOTS > is zero, which certainly explains the warning. > > # cat /proc/meminfo > NR_SECTION_ROOTS=0 > NR_MEM_SECTIONS=32 > SECTIONS_PER_ROOT=512 > SECTIONS_SHIFT=5 > MAX_PHYSMEM_BITS=32
hm, who owns sparsemem nowadays? Nobody identifiable.
Does it make physical sense to have SECTIONS_PER_ROOT > NR_MEM_SECTIONS?
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