diff --git a/lib/activate/activate.c b/lib/activate/activate.c
index 0c7a49a2c..3844992f8 100644
--- a/lib/activate/activate.c
+++ b/lib/activate/activate.c
@@ -418,7 +418,7 @@ int add_areas_line(struct dev_manager *dm, struct lv_segment *seg,
 {
         return 0;
 }
-int device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_usable_check_params check, int *is_lv)
+int dm_device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_usable_check_params check, int *is_lv)
 {
         return 0;
 }
diff --git a/lib/activate/activate.h b/lib/activate/activate.h
index b9798ed48..bd30e2655 100644
--- a/lib/activate/activate.h
+++ b/lib/activate/activate.h
@@ -264,7 +264,7 @@ struct dev_usable_check_params {
  * Returns 1 if mapped device is not suspended, blocked or
  * is using a reserved name.
  */
-int device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_usable_check_params check, int *is_lv);
+int dm_device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_usable_check_params check, int *is_lv);
 
 /*
  * Declaration moved here from fs.h to keep header fs.h hidden
diff --git a/lib/activate/dev_manager.c b/lib/activate/dev_manager.c
index 745fa262d..c7f0ec086 100644
--- a/lib/activate/dev_manager.c
+++ b/lib/activate/dev_manager.c
@@ -479,12 +479,12 @@ static int _ignore_blocked_mirror_devices(struct cmd_context *cmd,
 				goto_out;
 
 			tmp_dev->dev = MKDEV(sm->logs[0].major, sm->logs[0].minor);
-			if (device_is_usable(cmd, tmp_dev, (struct dev_usable_check_params)
-					     { .check_empty = 1,
-					       .check_blocked = 1,
-					       .check_suspended = ignore_suspended_devices(),
-					       .check_error_target = 1,
-					       .check_reserved = 0 }, NULL))
+			if (dm_device_is_usable(cmd, tmp_dev, (struct dev_usable_check_params)
+					       { .check_empty = 1,
+					         .check_blocked = 1,
+					         .check_suspended = ignore_suspended_devices(),
+					         .check_error_target = 1,
+					         .check_reserved = 0 }, NULL))
 				goto out; /* safe to use */
 			stack;
 		}
@@ -738,7 +738,7 @@ static int _is_usable_uuid(const struct device *dev, const char *name, const cha
 }
 
 /*
- * device_is_usable
+ * dm_device_is_usable
  * @dev
  * @check_lv_names
  *
@@ -753,7 +753,7 @@ static int _is_usable_uuid(const struct device *dev, const char *name, const cha
  *
  * Returns: 1 if usable, 0 otherwise
  */
-int device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_usable_check_params check, int *is_lv)
+int dm_device_is_usable(struct cmd_context *cmd, struct device *dev, struct dev_usable_check_params check, int *is_lv)
 {
 	struct dm_task *dmt;
 	struct dm_info info;
diff --git a/lib/filters/filter-usable.c b/lib/filters/filter-usable.c
index dcf9b9091..127a7333b 100644
--- a/lib/filters/filter-usable.c
+++ b/lib/filters/filter-usable.c
@@ -52,7 +52,7 @@ static int _passes_usable_filter(struct cmd_context *cmd, struct dev_filter *f,
 
 	/* further checks are done on dm devices only */
 	if (dm_is_dm_major(MAJOR(dev->dev))) {
-		if (!(r = device_is_usable(cmd, dev, *ucp, &is_lv))) {
+		if (!(r = dm_device_is_usable(cmd, dev, *ucp, &is_lv))) {
 			if (is_lv)
 				dev->filtered_flags |= DEV_FILTERED_IS_LV;
 			else