dax: cleanup needlessly global symbol warnings
drivers/dax/dax.c:75:6: warning: symbol 'dax_region_put' was not declared.
drivers/dax/dax.c:95:19: warning: symbol 'alloc_dax_region' was not declared.
drivers/dax/dax.c:173:5: warning: symbol 'devm_create_dax_dev' was not declared.
drivers/dax/pmem.c:27:17: warning: symbol 'to_dax_pmem' was not declared.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index 803f395..736c038 100644
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -18,6 +18,7 @@
#include <linux/dax.h>
#include <linux/fs.h>
#include <linux/mm.h>
+#include "dax.h"
static int dax_major;
static struct class *dax_class;