X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=net%2Fcore%2Fdev.c;h=b09ac57f43483244ec42dda29506c6b13b3b2302;hb=e4961b0768852d9eb7383e1a5df178eacb714656;hp=f1fe26f6645883a54126300adc030f1c3a04652d;hpb=878fb5dc96b9dfae1de45be1b85aba40aca3356e;p=cascardo%2Flinux.git

diff --git a/net/core/dev.c b/net/core/dev.c
index f1fe26f66458..b09ac57f4348 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5511,10 +5511,14 @@ struct net_device *netdev_all_lower_get_next_rcu(struct net_device *dev,
 {
 	struct netdev_adjacent *lower;
 
-	lower = list_first_or_null_rcu(&dev->all_adj_list.lower,
-				       struct netdev_adjacent, list);
+	lower = list_entry_rcu((*iter)->next, struct netdev_adjacent, list);
+
+	if (&lower->list == &dev->all_adj_list.lower)
+		return NULL;
+
+	*iter = &lower->list;
 
-	return lower ? lower->dev : NULL;
+	return lower->dev;
 }
 EXPORT_SYMBOL(netdev_all_lower_get_next_rcu);