static int __gup_device_huge_pud(pud_t pud, pud_t *pudp, unsigned long addr,
				 unsigned long end, unsigned int flags,
				 struct page **pages, int *nr)
{
	BUILD_BUG();
	return 0;
}
static int __gup_device_huge_pud(pud_t pud, pud_t *pudp, unsigned long addr,
				 unsigned long end, unsigned int flags,
				 struct page **pages, int *nr)
{
	BUILD_BUG();
	return 0;
}