diff --git a/net/core/dev.c b/net/core/dev.c
index fa88dcd..af3cab3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -198,7 +198,13 @@ EXPORT_SYMBOL(dev_base_lock);
 
 static inline struct hlist_head *dev_name_hash(struct net *net, const char *name)
 {
-	unsigned hash = full_name_hash(name, strnlen(name, IFNAMSIZ));
+	unsigned hash = 0;
+	int len = strnlen(name, IFNAMSIZ);
+	int i;
+
+	for (i = 0; i < len; ++i)
+		hash = 31 * hash + name[i];
+
 	return &net->dev_name_head[hash & ((1 << NETDEV_HASHBITS) - 1)];
 }