1 files changed, 0 insertions, 1 deletions

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index afc1dc60f3f8..3dadde52253c 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -106,7 +106,6 @@ extern unsigned int core_pipe_limit;
 #endif
 extern int pid_max;
 extern int pid_max_min, pid_max_max;
-extern int sysctl_drop_caches;
 extern int percpu_pagelist_fraction;
 extern int compat_log;
 extern int latencytop_enabled;