Re: [PATCH] Fix corruption of memmap on IA64 SPARSEMEM when mem_section is not a power of 2

[Andrew Morton <akpm@linux-foundation.org>]

On Wed, 25 Jul 2007 13:55:02 +0100
mel@skynet.ie (Mel Gorman) wrote:

> > mm/sparse.c: In function `sparse_init':
> > mm/sparse.c:482: error: implicit declaration of function `sparse_early_usemap_alloc'
> > mm/sparse.c:482: warning: assignment makes pointer from integer without a cast
> > mm/sparse.c: In function `sparse_add_one_section':
> > mm/sparse.c:553: error: implicit declaration of function `__kmalloc_section_usemap'
> > mm/sparse.c:553: warning: assignment makes pointer from integer without a cast
> 
> I'm looking at this now and getting a superh cross-compiler built to
> build-test any fix. My first impression is that
> sparse_early_usemap_alloc() needs to be defined whether
> CONFIG_SPARSEMEM_VMEMMAP is set or not. Right now,
> sparse_early_usemap_alloc() is only defined when it is set and it's not
> clear why although "by accident" is the most likely explanation.
> 

Thanks.

There's an sh cross-compiler in http://userweb.kernel.org/~akpm/cross-compilers/,
btw.
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