diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 39a6da2..62ab1ab 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1498,8 +1498,25 @@
 #endif
 }
 
+/* Note: This doesn't put any conntrack and bridge info in dst. */
+static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
+{
+	dst->nfct = src->nfct;
+	nf_conntrack_get(src->nfct);
+	dst->nfctinfo = src->nfctinfo;
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+	dst->nfct_reasm = src->nfct_reasm;
+	nf_conntrack_get_reasm(src->nfct_reasm);
+#endif
+#ifdef CONFIG_BRIDGE_NETFILTER
+	dst->nf_bridge  = src->nf_bridge;
+	nf_bridge_get(src->nf_bridge);
+#endif
+}
+
 #else /* CONFIG_NETFILTER */
 static inline void nf_reset(struct sk_buff *skb) {}
+static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src) {}
 #endif /* CONFIG_NETFILTER */
 
 #ifdef CONFIG_NETWORK_SECMARK