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-rw-r--r--include/linux/udp.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/udp.h b/include/linux/udp.h
index 581ca2c14c5..0cf5c4c0ec8 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;