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-rw-r--r--include/net/arp.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/arp.h b/include/net/arp.h
index 91f0568a04ef..723bde501c64 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -8,6 +8,13 @@
extern struct neigh_table arp_tbl;
+static inline u32 arp_hashfn(u32 key, const struct net_device *dev, u32 hash_rnd)
+{
+ u32 val = key ^ dev->ifindex;
+
+ return val * hash_rnd;
+}
+
extern void arp_init(void);
extern int arp_find(unsigned char *haddr, struct sk_buff *skb);
extern int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg);