alloc_dax_region
EXPORT_SYMBOL_GPL(alloc_dax_region);
struct dax_region *alloc_dax_region(struct device *parent, int region_id,
dax_region = alloc_dax_region(dev, cxlr->id, &cxlr_dax->hpa_range, nid,
dax_region = alloc_dax_region(dev, pdev->id, &mri->range,
dax_region = alloc_dax_region(dev, region_id, &range,