diff --git a/net/core/dev.c b/net/core/dev.c
index 13a0d9f..3ba63aa 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2715,7 +2715,7 @@
 	return 0;
 }
 
-void __dev_addr_discard(struct dev_addr_list **list)
+static void __dev_addr_discard(struct dev_addr_list **list)
 {
 	struct dev_addr_list *tmp;
 
@@ -2785,6 +2785,18 @@
 	netif_tx_unlock_bh(dev);
 }
 
+/*
+ *	Discard multicast list when a device is downed
+ */
+
+static void dev_mc_discard(struct net_device *dev)
+{
+	netif_tx_lock_bh(dev);
+	__dev_addr_discard(&dev->mc_list);
+	dev->mc_count = 0;
+	netif_tx_unlock_bh(dev);
+}
+
 unsigned dev_get_flags(const struct net_device *dev)
 {
 	unsigned flags;