diff --git a/include/net/netns/hash.h b/include/net/netns/hash.h
index 24c78183a4c262e086c29cde1e61b7f397d8bab0..16a842456189f2fc1a3363685b5dd4310a32b2b8 100644
--- a/include/net/netns/hash.h
+++ b/include/net/netns/hash.h
@@ -9,12 +9,7 @@ struct net;
 static inline u32 net_hash_mix(const struct net *net)
 {
 #ifdef CONFIG_NET_NS
-	/*
-	 * shift this right to eliminate bits, that are
-	 * always zeroed
-	 */
-
-	return (u32)(((unsigned long)net) >> L1_CACHE_SHIFT);
+	return (u32)(((unsigned long)net) >> ilog2(sizeof(*net)));
 #else
 	return 0;
 #endif