diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index f153f43..f4459fa 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -136,6 +136,7 @@
 	ND_ASYNC,
 };
 
+int nd_integrity_init(struct gendisk *disk, unsigned long meta_size);
 void wait_nvdimm_bus_probe_idle(struct device *dev);
 void nd_device_register(struct device *dev);
 void nd_device_unregister(struct device *dev, enum nd_async_mode mode);