net: fib_rules: consolidate IPv4 and DECnet ->default_pref() functions.

[net-next-2.6.git] / net / core / fib_rules.c

diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 05cce4ec84ddd00323c00fa6acb7b0b0d570bab6..1eb32276be773c61c4dbb83ba0752ded6dac8ead 100644 (file)
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -39,6 +39,24 @@ int fib_default_rule_add(struct fib_rules_ops *ops,
 }
 EXPORT_SYMBOL(fib_default_rule_add);
 
+u32 fib_default_rule_pref(struct fib_rules_ops *ops)
+{
+       struct list_head *pos;
+       struct fib_rule *rule;
+
+       if (!list_empty(&ops->rules_list)) {
+               pos = ops->rules_list.next;
+               if (pos->next != &ops->rules_list) {
+                       rule = list_entry(pos->next, struct fib_rule, list);
+                       if (rule->pref)
+                               return rule->pref - 1;
+               }
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL(fib_default_rule_pref);
+
 static void notify_rule_change(int event, struct fib_rule *rule,
                               struct fib_rules_ops *ops, struct nlmsghdr *nlh,
                               u32 pid);