diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 9205a76d967a..38e4094960ce 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -494,7 +494,7 @@ int igmp6_event_report(struct sk_buff *skb);
 
 #ifdef CONFIG_SYSCTL
 int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write,
-			       void __user *buffer, size_t *lenp, loff_t *ppos);
+			       void *buffer, size_t *lenp, loff_t *ppos);
 int ndisc_ifinfo_sysctl_strategy(struct ctl_table *ctl,
 				 void __user *oldval, size_t __user *oldlenp,
 				 void __user *newval, size_t newlen);