diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index ce2c06f72e863f0271a04e8f0e428d8f0d3ee3f2..e5c2d5cc6e6ad74cde812be7d7e95e756184e9d5 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -85,8 +85,7 @@ static inline int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *val
 extern int ftrace_enabled;
 extern int
 ftrace_enable_sysctl(struct ctl_table *table, int write,
-		     void __user *buffer, size_t *lenp,
-		     loff_t *ppos);
+		     void *buffer, size_t *lenp, loff_t *ppos);
 
 struct ftrace_ops;
 
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index e9f893388245110d4941aeffd61b16aea1c0b540..603255f5f085b867dd273588cad95ad7a61b78cd 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -7534,8 +7534,7 @@ static bool is_permanent_ops_registered(void)
 
 int
 ftrace_enable_sysctl(struct ctl_table *table, int write,
-		     void __user *buffer, size_t *lenp,
-		     loff_t *ppos)
+		     void *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret = -ENODEV;