1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index a68f838a132..509b8807927 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -225,6 +225,9 @@ extern void ipfrag_init(void);
 
 extern void ip_static_sysctl_init(void);
 
+#define IP4_REPLY_MARK(net, mark) \
+	((net)->ipv4.sysctl_fwmark_reflect ? (mark) : 0)
+
 static inline bool ip_is_fragment(const struct iphdr *iph)
 {
 	return (iph->frag_off & htons(IP_MF | IP_OFFSET)) != 0;