static int __gup_device_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr,
				 unsigned long end, unsigned int flags,
				 struct page **pages, int *nr)
{
	BUILD_BUG();
	return 0;
}
static int __gup_device_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr,
				 unsigned long end, unsigned int flags,
				 struct page **pages, int *nr)
{
	BUILD_BUG();
	return 0;
}