openvswitch: Fix egress tunnel info.

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

diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index af9d538..ce00971 100644 (file)
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -60,6 +60,38 @@ static inline struct metadata_dst *tun_rx_dst(int md_size)
        return tun_dst;
 }
 
+static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb)
+{
+       struct metadata_dst *md_dst = skb_metadata_dst(skb);
+       int md_size = md_dst->u.tun_info.options_len;
+       struct metadata_dst *new_md;
+
+       if (!md_dst)
+               return ERR_PTR(-EINVAL);
+
+       new_md = metadata_dst_alloc(md_size, GFP_ATOMIC);
+       if (!new_md)
+               return ERR_PTR(-ENOMEM);
+
+       memcpy(&new_md->u.tun_info, &md_dst->u.tun_info,
+              sizeof(struct ip_tunnel_info) + md_size);
+       skb_dst_drop(skb);
+       dst_hold(&new_md->dst);
+       skb_dst_set(skb, &new_md->dst);
+       return new_md;
+}
+
+static inline struct ip_tunnel_info *skb_tunnel_info_unclone(struct sk_buff *skb)
+{
+       struct metadata_dst *dst;
+
+       dst = tun_dst_unclone(skb);
+       if (IS_ERR(dst))
+               return NULL;
+
+       return &dst->u.tun_info;
+}
+
 static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb,
                                                 __be16 flags,
                                                 __be64 tunnel_id,