44f23dabdc08 ("nvdimm: Use kstrtobool() instead of strtobool()")
e765f13ed126 ("nvdimm/pmem: move dax_attribute_group from dax to pmem")
1b7646014e0d ("dax: mark dax_get_by_host static")
1a9d5d405962 ("dax: Modify bdev_dax_pgoff() to handle NULL bdev")