netdev - [PATCH v2 net-next 3/4] net: macvlan: call netdev_lockdep_set

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Message-Id: <1465442964-5786-3-git-send-email-edumazet@google.com>
Date:	Wed,  8 Jun 2016 20:29:23 -0700
From:	Eric Dumazet <edumazet@...gle.com>
To:	"David S . Miller" <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	David Ahern <dsa@...ulusnetworks.com>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH v2 net-next 3/4] net: macvlan: call netdev_lockdep_set_classes()

In case a qdisc is used on a macvlan device, we need to use different
lockdep classes to avoid false positives.

Fixes: f9eb8aea2a1e ("net_sched: transform qdisc running bit into a seqcount")
Fixes: 79640a4ca695 ("net: add additional lock to qdisc to increase throughput")
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 drivers/net/macvlan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 0c65bd914aed..b0c6f5b43f67 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -823,6 +823,7 @@ static void macvlan_set_lockdep_class(struct net_device *dev)
 				       &macvlan_netdev_addr_lock_key,
 				       macvlan_get_nest_level(dev));
 	netdev_for_each_tx_queue(dev, macvlan_set_lockdep_class_one, NULL);
+	netdev_lockdep_set_classes(dev);
 }
 
 static int macvlan_init(struct net_device *dev)
-- 
2.8.0.rc3.226.g39d4020