1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/udp.h b/include/linux/udp.h
index 581ca2c14c52..0cf5c4c0ec81 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -38,6 +38,7 @@ struct udphdr {
 #ifdef __KERNEL__
 #include <net/inet_sock.h>
 #include <linux/skbuff.h>
+#include <net/netns/hash.h>
 
 static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
 {
@@ -46,6 +47,11 @@ static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
 
 #define UDP_HTABLE_SIZE         128
 
+static inline int udp_hashfn(struct net *net, const unsigned num)
+{
+        return (num + net_hash_mix(net)) & (UDP_HTABLE_SIZE - 1);
+}
+
 struct udp_sock {
         /* inet_sock has to be the first member */
         struct inet_sock inet;