From: Andrew Morton With CONFIG_HUGETLB_PAGE=n: In file included from kernel/sysctl.c:37: include/linux/hugetlb.h:104:1: warning: "hugetlb_free_pgd_range" redefined In file included from include/linux/mm.h:36, from kernel/sysctl.c:23: include/asm/pgtable.h:492:1: warning: this is the location of the previous definition Cc: David Gibson Cc: Paul Mackerras Signed-off-by: Andrew Morton --- include/asm-ppc64/pgtable.h | 2 ++ 1 files changed, 2 insertions(+) diff -puN include/asm-ppc64/pgtable.h~ppc64-four-level-pagetables-fix include/asm-ppc64/pgtable.h --- 25/include/asm-ppc64/pgtable.h~ppc64-four-level-pagetables-fix 2005-08-07 06:21:07.000000000 -0600 +++ 25-akpm/include/asm-ppc64/pgtable.h 2005-08-07 06:21:07.000000000 -0600 @@ -489,8 +489,10 @@ extern pgd_t swapper_pg_dir[]; extern void paging_init(void); +#ifdef CONFIG_HUGETLB_PAGE #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \ free_pgd_range(tlb, addr, end, floor, ceiling) +#endif /* * This gets called at the end of handling a page fault, when _