diff --git a/include/linux/sched.h b/include/linux/sched.h
index 0a90cefb0b0dec33ba7452d9dc04a32f056e9d09..3a767242e72f5fe4a65df8a5f735038d279a9f33 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1305,7 +1305,6 @@ extern int kill_pgrp(struct pid *pid, int sig, int priv);
 extern int kill_pid(struct pid *pid, int sig, int priv);
 extern int __kill_pg_info(int sig, struct siginfo *info, pid_t pgrp);
 extern int kill_pg_info(int, struct siginfo *, pid_t);
-extern int kill_proc_info(int, struct siginfo *, pid_t);
 extern void do_notify_parent(struct task_struct *, int);
 extern void force_sig(int, struct task_struct *);
 extern void force_sig_specific(int, struct task_struct *);
diff --git a/kernel/signal.c b/kernel/signal.c
index bc972d7e6319729b832fd1bde49b70f49549ec58..ec81defde33946380518215cab07e309876360ed 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1134,8 +1134,7 @@ int kill_pid_info(int sig, struct siginfo *info, struct pid *pid)
 	return error;
 }
 
-int
-kill_proc_info(int sig, struct siginfo *info, pid_t pid)
+static int kill_proc_info(int sig, struct siginfo *info, pid_t pid)
 {
 	int error;
 	rcu_read_lock();