static void unpin_vector_pages(struct mm_struct *mm, struct page **pages,
			       unsigned start, unsigned npages)
{
	hfi1_release_user_pages(mm, pages + start, npages, false);
	kfree(pages);
}
static void unpin_vector_pages(struct mm_struct *mm, struct page **pages,
			       unsigned start, unsigned npages)
{
	hfi1_release_user_pages(mm, pages + start, npages, false);
	kfree(pages);
}