pmem_should_map_pages
EXPORT_SYMBOL(pmem_should_map_pages);
else if (!claim && pmem_should_map_pages(dev))
if (pmem_should_map_pages(dev)) {
bool pmem_should_map_pages(struct device *dev);
if (is_nd_pfn(dev) || pmem_should_map_pages(dev))
} else if (pmem_should_map_pages(dev)) {