diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 0eb7f586d755..be34c3b21bd7 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -651,7 +651,7 @@ _END_ONBEACON_:
 	return _SUCCESS;
 }
 
-unsigned int OnAuth(struct adapter *padapter, struct recv_frame *precv_frame)
+static unsigned int OnAuth(struct adapter *padapter, struct recv_frame *precv_frame)
 {
 	unsigned int	auth_mode, ie_len;
 	u16 seq;
diff --git a/drivers/staging/r8188eu/include/rtw_mlme_ext.h b/drivers/staging/r8188eu/include/rtw_mlme_ext.h
index f192733a5c53..f77e6dc81831 100644
--- a/drivers/staging/r8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/r8188eu/include/rtw_mlme_ext.h
@@ -536,9 +536,6 @@ void start_clnt_auth(struct adapter *padapter);
 void start_clnt_join(struct adapter *padapter);
 void start_create_ibss(struct adapter *padapter);
 
-unsigned int OnAuth(struct adapter *padapter,
-		    struct recv_frame *precv_frame);
-
 unsigned int OnAction_back(struct adapter *padapter,
 			   struct recv_frame *precv_frame);
 unsigned int on_action_public(struct adapter *padapter,