diff -Nurp linux-2.6.22-526/include/linux/netfilter/xt_CLASSIFY.h linux-2.6.22-527/include/linux/netfilter/xt_CLASSIFY.h
--- linux-2.6.22-526/include/linux/netfilter/xt_CLASSIFY.h	2007-07-08 19:32:17.000000000 -0400
+++ linux-2.6.22-527/include/linux/netfilter/xt_CLASSIFY.h	2008-07-25 14:46:22.000000000 -0400
@@ -3,6 +3,7 @@
 
 struct xt_classify_target_info {
 	u_int32_t priority;
+	u_int8_t add_mark;
 };
 
 #endif /*_XT_CLASSIFY_H */
diff -Nurp linux-2.6.22-526/net/netfilter/xt_CLASSIFY.c linux-2.6.22-527/net/netfilter/xt_CLASSIFY.c
--- linux-2.6.22-526/net/netfilter/xt_CLASSIFY.c	2007-07-08 19:32:17.000000000 -0400
+++ linux-2.6.22-527/net/netfilter/xt_CLASSIFY.c	2008-07-25 14:50:50.000000000 -0400
@@ -36,6 +36,9 @@ target(struct sk_buff **pskb,
 	const struct xt_classify_target_info *clinfo = targinfo;
 
 	(*pskb)->priority = clinfo->priority;
+	if (clinfo->add_mark)
+		(*pskb)->priority += (*pskb)->mark;
+
 	return XT_CONTINUE;
 }