diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index 5890972a69bf00d88cb3e8aec04a72ace578be3b..c0f8144f23497ae0f95804148f19206b170393c8 100644
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -505,9 +505,6 @@ extern struct page *zero_page_memmap_ptr;
 #define HUGETLB_PGDIR_SHIFT	(HPAGE_SHIFT + 2*(PAGE_SHIFT-3))
 #define HUGETLB_PGDIR_SIZE	(__IA64_UL(1) << HUGETLB_PGDIR_SHIFT)
 #define HUGETLB_PGDIR_MASK	(~(HUGETLB_PGDIR_SIZE-1))
-struct mmu_gather;
-void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
-		unsigned long end, unsigned long floor, unsigned long ceiling);
 #endif
 
 /*
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index e465fbf1ef5fcd04b2b411b38525faf40c8840af..5db25ffdb3eb5e16eb910ce42412cfd97f533572 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -47,6 +47,10 @@ void hugetlb_change_protection(struct vm_area_struct *vma,
 
 #ifndef ARCH_HAS_HUGETLB_FREE_PGD_RANGE
 #define hugetlb_free_pgd_range	free_pgd_range
+#else
+void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr,
+			    unsigned long end, unsigned long floor,
+			    unsigned long ceiling);
 #endif
 
 #ifndef ARCH_HAS_PREPARE_HUGEPAGE_RANGE