net: sched: copy tunnel info when setting flow_action entry->tunnel

[linux-2.6-microblaze.git] / include / net / tc_act / tc_tunnel_key.h

diff --git a/include/net/tc_act/tc_tunnel_key.h b/include/net/tc_act/tc_tunnel_key.h
index 7c3f777..0689d9b 100644 (file)
--- a/include/net/tc_act/tc_tunnel_key.h
+++ b/include/net/tc_act/tc_tunnel_key.h
@@ -59,4 +59,21 @@ static inline struct ip_tunnel_info *tcf_tunnel_info(const struct tc_action *a)
        return NULL;
 #endif
 }
+
+static inline struct ip_tunnel_info *
+tcf_tunnel_info_copy(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+       struct ip_tunnel_info *tun = tcf_tunnel_info(a);
+
+       if (tun) {
+               size_t tun_size = sizeof(*tun) + tun->options_len;
+               struct ip_tunnel_info *tun_copy = kmemdup(tun, tun_size,
+                                                         GFP_KERNEL);
+
+               return tun_copy;
+       }
+#endif
+       return NULL;
+}
 #endif /* __NET_TC_TUNNEL_KEY_H */