diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 1e723c7..1e40222e 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -122,6 +122,11 @@
 	HCI_PERIODIC_INQ,
 };
 
+/* A mask for the flags that are supposed to remain when a reset happens
+ * or the HCI device is closed.
+ */
+#define HCI_PERSISTENT_MASK (BIT(HCI_LE_SCAN) | BIT(HCI_PERIODIC_INQ))
+
 /* HCI ioctl defines */
 #define HCIDEVUP	_IOW('H', 201, int)
 #define HCIDEVDOWN	_IOW('H', 202, int)