netfilter: use audit_log()

Use audit_log() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index e164823..c83a3b5 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1192,16 +1192,10 @@ xt_replace_table(struct xt_table *table,
 
 #ifdef CONFIG_AUDIT
 	if (audit_enabled) {
-		struct audit_buffer *ab;
-
-		ab = audit_log_start(current->audit_context, GFP_KERNEL,
-				     AUDIT_NETFILTER_CFG);
-		if (ab) {
-			audit_log_format(ab, "table=%s family=%u entries=%u",
-					 table->name, table->af,
-					 private->number);
-			audit_log_end(ab);
-		}
+		audit_log(current->audit_context, GFP_KERNEL,
+			  AUDIT_NETFILTER_CFG,
+			  "table=%s family=%u entries=%u",
+			  table->name, table->af, private->number);
 	}
 #endif