SKB_EXT_BRIDGE_NF
return skb_ext_find(skb, SKB_EXT_BRIDGE_NF);
return skb_ext_exist(skb, SKB_EXT_BRIDGE_NF);
struct nf_bridge_info *b = skb_ext_add(skb, SKB_EXT_BRIDGE_NF);
skb_ext_del(skb, SKB_EXT_BRIDGE_NF);
return skb_ext_add(skb, SKB_EXT_BRIDGE_NF);
[SKB_EXT_BRIDGE_NF] = SKB_EXT_CHUNKSIZEOF(struct nf_bridge_info),