--- patch-5.4-ck1	2020-08-08 16:53:19.000000000 +0800
+++ patch-5.4.57-ck1	2020-08-08 12:51:45.000000000 +0800
@@ -17368,9 +17368,9 @@
 --- a/kernel/time/timer.c
 +++ b/kernel/time/timer.c
 @@ -43,6 +43,7 @@
- #include <linux/sched/debug.h>
  #include <linux/slab.h>
  #include <linux/compat.h>
+ #include <linux/random.h>
 +#include <linux/freezer.h>
  
  #include <linux/uaccess.h>