From 384e4bf0def9092b8c30f025c6b29982e2e96c50 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 25 Jan 2017 09:10:41 -0800
Subject: [PATCH] net: dsa: Bring back device detaching in dsa_slave_suspend()
[ Upstream commit f154be241d22298d2b63c9b613f619fa1086ea75 ]
Commit 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid
lockdep splat") removed the netif_device_detach() call done in
dsa_slave_suspend() which is necessary, and paired with a corresponding
netif_device_attach(), bring it back.
Fixes: 448b4482c671 ("net: dsa: Add lockdep class to tx queues to avoid lockdep splat")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/dsa/slave.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 7bc787b095c8..8dfe9fb7ad36 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1101,6 +1101,8 @@ int dsa_slave_suspend(struct net_device *slave_dev)
{
struct dsa_slave_priv *p = netdev_priv(slave_dev);
+ netif_device_detach(slave_dev);
+
if (p->phy) {
phy_stop(p->phy);
p->old_pause = -1;