netpoll: remove usage of dev->master

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 3 deletions

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 3151acf5ec13..d2bda8eb08ec 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -210,9 +210,12 @@ static void netpoll_poll_dev(struct net_device *dev)
 
         if (dev->flags & IFF_SLAVE) {
                 if (ni) {
-                        struct net_device *bond_dev = dev->master;
+                        struct net_device *bond_dev;
                         struct sk_buff *skb;
-                        struct netpoll_info *bond_ni = rcu_dereference_bh(bond_dev->npinfo);
+                        struct netpoll_info *bond_ni;
+
+                        bond_dev = netdev_master_upper_dev_get_rcu(dev);
+                        bond_ni = rcu_dereference_bh(bond_dev->npinfo);
                         while ((skb = skb_dequeue(&ni->arp_tx))) {
                                 skb->dev = bond_dev;
                                 skb_queue_tail(&bond_ni->arp_tx, skb);
@@ -815,7 +818,7 @@ int netpoll_setup(struct netpoll *np)
                 return -ENODEV;
         }
 
-        if (ndev->master) {
+        if (netdev_master_upper_dev_get(ndev)) {
                 np_err(np, "%s is a slave device, aborting\n", np->dev_name);
                 err = -EBUSY;
                 goto put;