diff --git a/include/net/tcp.h b/include/net/tcp.h
index ae0a14b6f76f..daf0a142f36c 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -360,7 +360,7 @@ ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos,
 
 /* sysctl master controller */
 extern int tcp_use_userconfig_sysctl_handler(struct ctl_table *table,
-				int write, void __user *buffer, size_t *length,
+				int write, void *buffer, size_t *length,
 				loff_t *ppos);
 extern int tcp_proc_delayed_ack_control(struct ctl_table *table, int write,
 				void *buffer, size_t *length,
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 76f852ea4cb7..5fb3b234a19e 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -60,7 +60,7 @@ int tcp_proc_delayed_ack_control(struct ctl_table *table, int write,
 
 /*sysctl handler for tcp_ack realted master control */
 int tcp_use_userconfig_sysctl_handler(struct ctl_table *table, int write,
-				      void __user *buffer, size_t *length,
+				      void *buffer, size_t *length,
 				      loff_t *ppos)
 {
 	int ret = proc_dointvec_minmax(table, write, buffer, length, ppos);