1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 182d6770f102..6da12518e693 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -153,6 +153,13 @@ static u16 xenvif_select_queue(struct net_device *dev, struct sk_buff *skb,
 {
         struct xenvif *vif = netdev_priv(dev);
         unsigned int size = vif->hash.size;
+        unsigned int num_queues;
+
+        /* If queues are not set up internally - always return 0
+         * as the packet going to be dropped anyway */
+        num_queues = READ_ONCE(vif->num_queues);
+        if (num_queues < 1)
+                return 0;
 
         if (vif->hash.alg == XEN_NETIF_CTRL_HASH_ALGORITHM_NONE)
                 return fallback(dev, skb, NULL) % dev->real_num_tx_queues;