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sparsemem: Fix compilation on PowerPC 

Stephen reported:
build (powerpc
ppc64_defconfig) produced these warnings:

mm/sparse.c: In function 'sparse_init':
mm/sparse.c:488: warning: unused variable 'map_count'
mm/sparse.c:484: warning: unused variable 'size2'
mm/sparse.c:481: warning: unused variable 'map_map'
mm/sparse.c: At top level:
mm/sparse.c:442: warning: 'sparse_early_mem_maps_alloc_node' defined but not used

Introduced by commit 9bdac91424
("sparsemem: Put mem map for one node together").

Conditionalize the bits appropriately based on the setting of
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4B895682.1080706@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Yinghai Lu 2010-02-27 09:29:38 -08:00 committed by H. Peter Anvin
parent fb90ef93df
commit 81d0d950e5
1 changed files with 7 additions and 4 deletions
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11
mm/sparse.c
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@ -439,6 +439,7 @@ void __init sparse_mem_maps_populate_node(struct page **map_map,
}
#endif /* !CONFIG_SPARSEMEM_VMEMMAP */
#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER
static void __init sparse_early_mem_maps_alloc_node(struct page **map_map,
unsigned long pnum_begin,
unsigned long pnum_end,
@ -447,8 +448,7 @@ static void __init sparse_early_mem_maps_alloc_node(struct page **map_map,
sparse_mem_maps_populate_node(map_map, pnum_begin, pnum_end,
map_count, nodeid);
}
#ifndef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER
#else
static struct page __init *sparse_early_mem_map_alloc(unsigned long pnum)
{
struct page *map;
@ -478,14 +478,17 @@ void __init sparse_init(void)
{
unsigned long pnum;
struct page *map;
struct page **map_map;
unsigned long *usemap;
unsigned long **usemap_map;
int size, size2;
int size;
int nodeid_begin = 0;
unsigned long pnum_begin = 0;
unsigned long usemap_count;
#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER
unsigned long map_count;
int size2;
struct page **map_map;
#endif
/*
* map is using big page (aka 2M in x86 64 bit)