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-rw-r--r--include/net/inet_sock.h11
1 files changed, 7 insertions, 4 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index ce6da97bc84..62daf214931 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -19,6 +19,7 @@
#include <linux/string.h>
#include <linux/types.h>
+#include <linux/jhash.h>
#include <net/flow.h>
#include <net/sock.h>
@@ -167,13 +168,15 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
extern int inet_sk_rebuild_header(struct sock *sk);
+extern u32 inet_ehash_secret;
+extern void build_ehash_secret(void);
+
static inline unsigned int inet_ehashfn(const __be32 laddr, const __u16 lport,
const __be32 faddr, const __be16 fport)
{
- unsigned int h = ((__force __u32)laddr ^ lport) ^ ((__force __u32)faddr ^ (__force __u32)fport);
- h ^= h >> 16;
- h ^= h >> 8;
- return h;
+ return jhash_2words((__force __u32) laddr ^ (__force __u32) faddr,
+ ((__u32) lport) << 16 | (__force __u32)fport,
+ inet_ehash_secret);
}
static inline int inet_sk_ehashfn(const struct sock *sk)