diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 5b40279..f7df8ea 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -22,6 +22,7 @@
 #include <linux/tick.h>
 #include <linux/stop_machine.h>
 #include <linux/pvclock_gtod.h>
+#include <linux/compiler.h>
 
 #include "tick-internal.h"
 #include "ntp_internal.h"
@@ -760,7 +761,7 @@
  *
  *  XXX - Do be sure to remove it once all arches implement it.
  */
-void __attribute__((weak)) read_persistent_clock(struct timespec *ts)
+void __weak read_persistent_clock(struct timespec *ts)
 {
 	ts->tv_sec = 0;
 	ts->tv_nsec = 0;
@@ -775,7 +776,7 @@
  *
  *  XXX - Do be sure to remove it once all arches implement it.
  */
-void __attribute__((weak)) read_boot_clock(struct timespec *ts)
+void __weak read_boot_clock(struct timespec *ts)
 {
 	ts->tv_sec = 0;
 	ts->tv_nsec = 0;