netfilter: nf_flow_table: make nf_flow_table_iterate() static

nf_flow_table_iterate() is local function, make it static.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

include/net/netfilter/nf_flow_table.h

@@ -95,10 +95,6 @@ void flow_offload_free(struct flow_offload *flow);
 int flow_offload_add(struct nf_flowtable *flow_table, struct flow_offload *flow);
 struct flow_offload_tuple_rhash *flow_offload_lookup(struct nf_flowtable *flow_table,
 						     struct flow_offload_tuple *tuple);
-int nf_flow_table_iterate(struct nf_flowtable *flow_table,
-			  void (*iter)(struct flow_offload *flow, void *data),
-			  void *data);
-
 void nf_flow_table_cleanup(struct net_device *dev);
 
 int nf_flow_table_init(struct nf_flowtable *flow_table);

net/netfilter/nf_flow_table_core.c

@@ -247,9 +247,10 @@ flow_offload_lookup(struct nf_flowtable *flow_table,
 }
 EXPORT_SYMBOL_GPL(flow_offload_lookup);
 
-int nf_flow_table_iterate(struct nf_flowtable *flow_table,
-			  void (*iter)(struct flow_offload *flow, void *data),
-			  void *data)
+static int
+nf_flow_table_iterate(struct nf_flowtable *flow_table,
+		      void (*iter)(struct flow_offload *flow, void *data),
+		      void *data)
 {
 	struct flow_offload_tuple_rhash *tuplehash;
 	struct rhashtable_iter hti;
@@ -279,7 +280,6 @@ int nf_flow_table_iterate(struct nf_flowtable *flow_table,
 
 	return err;
 }
-EXPORT_SYMBOL_GPL(nf_flow_table_iterate);
 
 static inline bool nf_flow_has_expired(const struct flow_offload *flow)
 {