[IPV4]: Consolidate fib_select_default.

The difference in the implementation of the fib_select_default when
CONFIG_IP_MULTIPLE_TABLES is (not) defined looks
negligible. Consolidate it and place into fib_frontend.c.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 15 insertions, 19 deletions

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index be70b33b744c..39f944a096d9 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -193,14 +193,6 @@ static inline int fib_lookup(struct net *net, const struct flowi *flp,
         return -ENETUNREACH;
 }
 
-static inline void fib_select_default(const struct flowi *flp,
-                                      struct fib_result *res)
-{
-        struct fib_table *table = fib_get_table(&init_net, RT_TABLE_MAIN);
-        if (FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
-                table->tb_select_default(table, flp, res);
-}
-
 #else /* CONFIG_IP_MULTIPLE_TABLES */
 extern int __net_init fib4_rules_init(struct net *net);
 extern void __net_exit fib4_rules_exit(struct net *net);
@@ -213,7 +205,6 @@ extern int fib_lookup(struct net *n, struct flowi *flp, struct fib_result *res);
 
 extern struct fib_table *fib_new_table(struct net *net, u32 id);
 extern struct fib_table *fib_get_table(struct net *net, u32 id);
-extern void fib_select_default(const struct flowi *flp, struct fib_result *res);
 
 #endif /* CONFIG_IP_MULTIPLE_TABLES */
 
@@ -222,6 +213,7 @@ extern const struct nla_policy rtm_ipv4_policy[];
 extern void             ip_fib_init(void);
 extern int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
                                struct net_device *dev, __be32 *spec_dst, u32 *itag);
+extern void fib_select_default(const struct flowi *flp, struct fib_result *res);
 
 /* Exported by fib_semantics.c */
 extern int ip_fib_check_default(__be32 gw, struct net_device *dev);
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 6761639dd0e9..13bf01de0ed8 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -116,6 +116,20 @@ struct fib_table *fib_get_table(struct net *net, u32 id)
 }
 #endif /* CONFIG_IP_MULTIPLE_TABLES */
 
+void fib_select_default(const struct flowi *flp, struct fib_result *res)
+{
+        struct fib_table *tb;
+        int table = RT_TABLE_MAIN;
+#ifdef CONFIG_IP_MULTIPLE_TABLES
+        if (res->r == NULL || res->r->action != FR_ACT_TO_TBL)
+                return;
+        table = res->r->table;
+#endif
+        tb = fib_get_table(&init_net, table);
+        if (FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
+                tb->tb_select_default(tb, flp, res);
+}
+
 static void fib_flush(struct net *net)
 {
         int flushed = 0;
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 1effb4ab688c..19274d01afa4 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -102,16 +102,6 @@ errout:
 }
 
 
-void fib_select_default(const struct flowi *flp, struct fib_result *res)
-{
-        if (res->r && res->r->action == FR_ACT_TO_TBL &&
-            FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK) {
-                struct fib_table *tb;
-                if ((tb = fib_get_table(&init_net, res->r->table)) != NULL)
-                        tb->tb_select_default(tb, flp, res);
-        }
-}
-
 static int fib4_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
 {
         struct fib4_rule *r = (struct fib4_rule *) rule;