From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Date: Tue, 18 Aug 2015 17:28:04 +0000 (+0300)
Subject: vrf: simplify the netdev notifier function
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=58aa90875da1ab075d712585305d1e520812bbb1;p=linux-beck.git

vrf: simplify the netdev notifier function

We can drop the check because if vrf_ptr is present then we must have
the vrf device as a master and since we're running with rtnl it can't go
away.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 97605eab14ae..ed208317cbb5 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -624,9 +624,8 @@ static int vrf_device_event(struct notifier_block *unused,
 		if (!vrf_ptr || netif_is_vrf(dev))
 			goto out;
 
-		vrf_dev = __dev_get_by_index(dev_net(dev), vrf_ptr->ifindex);
-		if (vrf_dev)
-			vrf_del_slave(vrf_dev, dev);
+		vrf_dev = netdev_master_upper_dev_get(dev);
+		vrf_del_slave(vrf_dev, dev);
 	}
 out:
 	return NOTIFY_DONE;