diff --git a/include/linux/timer.h b/include/linux/timer.h
index 6abd913..cbd32ec 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -58,7 +58,9 @@
  * the timer will be serviced when the CPU eventually wakes up with a
  * subsequent non-deferrable timer.
  */
-#define TBASE_DEFERRABLE_FLAG		(0x1)
+#define TIMER_DEFERRABLE		0x1LU
+
+#define TIMER_FLAG_MASK			0x1LU
 
 #define TIMER_INITIALIZER(_function, _expires, _data) {		\
 		.entry = { .prev = TIMER_ENTRY_STATIC },	\
@@ -72,7 +74,7 @@
 	}
 
 #define TBASE_MAKE_DEFERRED(ptr) ((struct tvec_base *)		\
-		  ((unsigned char *)(ptr) + TBASE_DEFERRABLE_FLAG))
+		  ((unsigned char *)(ptr) + TIMER_DEFERRABLE))
 
 #define TIMER_DEFERRED_INITIALIZER(_function, _expires, _data) {\
 		.entry = { .prev = TIMER_ENTRY_STATIC },	\