diff --git a/include/linux/printk.h b/include/linux/printk.h
index 6949258..26fb95ce 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -88,6 +88,13 @@
 #define HW_ERR		"[Hardware Error]: "
 
 /*
+ * DEPRECATED
+ * Add this to a message whenever you want to warn user space about the use
+ * of a deprecated aspect of an API so they can stop using it
+ */
+#define DEPRECATED	"[Deprecated]: "
+
+/*
  * Dummy printk for disabled debugging statements to use whilst maintaining
  * gcc's format and side-effect checking.
  */