[LLC]: Fix sparse warnings

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
diff --git a/net/llc/llc_core.c b/net/llc/llc_core.c
index 9ccff12..ab0fcd3 100644
--- a/net/llc/llc_core.c
+++ b/net/llc/llc_core.c
@@ -69,7 +69,7 @@
 	write_unlock_bh(&llc_sap_list_lock);
 }
 
-struct llc_sap *__llc_sap_find(unsigned char sap_value)
+static struct llc_sap *__llc_sap_find(unsigned char sap_value)
 {
 	struct llc_sap* sap;