net: add netdev_lockdep_set_classes() helper
It is time to add netdev_lockdep_set_classes() helper
so that lockdep annotations per device type are easier to manage.
This removes a lot of copies and missing annotations.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 681af31..90157e2 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4607,28 +4607,6 @@
return 0;
}
-static struct lock_class_key bonding_netdev_xmit_lock_key;
-static struct lock_class_key bonding_netdev_addr_lock_key;
-static struct lock_class_key bonding_tx_busylock_key;
-static struct lock_class_key bonding_qdisc_running_key;
-
-static void bond_set_lockdep_class_one(struct net_device *dev,
- struct netdev_queue *txq,
- void *_unused)
-{
- lockdep_set_class(&txq->_xmit_lock,
- &bonding_netdev_xmit_lock_key);
-}
-
-static void bond_set_lockdep_class(struct net_device *dev)
-{
- lockdep_set_class(&dev->addr_list_lock,
- &bonding_netdev_addr_lock_key);
- netdev_for_each_tx_queue(dev, bond_set_lockdep_class_one, NULL);
- dev->qdisc_tx_busylock = &bonding_tx_busylock_key;
- dev->qdisc_running_key = &bonding_qdisc_running_key;
-}
-
/* Called from registration process */
static int bond_init(struct net_device *bond_dev)
{
@@ -4641,7 +4619,7 @@
if (!bond->wq)
return -ENOMEM;
- bond_set_lockdep_class(bond_dev);
+ netdev_lockdep_set_classes(bond_dev);
list_add_tail(&bond->bond_list, &bn->dev_list);
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index aeabaa4..17953ab 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -1312,13 +1312,9 @@
return stats64;
}
-static struct lock_class_key ppp_tx_busylock;
-static struct lock_class_key ppp_qdisc_running_key;
-
static int ppp_dev_init(struct net_device *dev)
{
- dev->qdisc_tx_busylock = &ppp_tx_busylock;
- dev->qdisc_running_key = &ppp_qdisc_running_key;
+ netdev_lockdep_set_classes(dev);
return 0;
}
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 00eb389..0a1bb83 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1574,25 +1574,6 @@
},
};
-static struct lock_class_key team_netdev_xmit_lock_key;
-static struct lock_class_key team_netdev_addr_lock_key;
-static struct lock_class_key team_tx_busylock_key;
-static struct lock_class_key team_qdisc_running_key;
-
-static void team_set_lockdep_class_one(struct net_device *dev,
- struct netdev_queue *txq,
- void *unused)
-{
- lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key);
-}
-
-static void team_set_lockdep_class(struct net_device *dev)
-{
- lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key);
- netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL);
- dev->qdisc_tx_busylock = &team_tx_busylock_key;
- dev->qdisc_running_key = &team_qdisc_running_key;
-}
static int team_init(struct net_device *dev)
{
@@ -1628,7 +1609,7 @@
goto err_options_register;
netif_carrier_off(dev);
- team_set_lockdep_class(dev);
+ netdev_lockdep_set_classes(dev);
return 0;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5415623..4f234b1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1946,6 +1946,23 @@
f(dev, &dev->_tx[i], arg);
}
+#define netdev_lockdep_set_classes(dev) \
+{ \
+ static struct lock_class_key qdisc_tx_busylock_key; \
+ static struct lock_class_key qdisc_running_key; \
+ static struct lock_class_key qdisc_xmit_lock_key; \
+ static struct lock_class_key dev_addr_list_lock_key; \
+ unsigned int i; \
+ \
+ (dev)->qdisc_tx_busylock = &qdisc_tx_busylock_key; \
+ (dev)->qdisc_running_key = &qdisc_running_key; \
+ lockdep_set_class(&(dev)->addr_list_lock, \
+ &dev_addr_list_lock_key); \
+ for (i = 0; i < (dev)->num_tx_queues; i++) \
+ lockdep_set_class(&(dev)->_tx[i]._xmit_lock, \
+ &qdisc_xmit_lock_key); \
+}
+
struct netdev_queue *netdev_pick_tx(struct net_device *dev,
struct sk_buff *skb,
void *accel_priv);
diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index 977a11e..d020299 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -627,22 +627,9 @@
return err < 0 ? NET_XMIT_DROP : err;
}
-static struct lock_class_key bt_tx_busylock;
-static struct lock_class_key bt_netdev_xmit_lock_key;
-static struct lock_class_key bt_qdisc_running_key;
-
-static void bt_set_lockdep_class_one(struct net_device *dev,
- struct netdev_queue *txq,
- void *_unused)
-{
- lockdep_set_class(&txq->_xmit_lock, &bt_netdev_xmit_lock_key);
-}
-
static int bt_dev_init(struct net_device *dev)
{
- netdev_for_each_tx_queue(dev, bt_set_lockdep_class_one, NULL);
- dev->qdisc_tx_busylock = &bt_tx_busylock;
- dev->qdisc_running_key = &bt_qdisc_running_key;
+ netdev_lockdep_set_classes(dev);
return 0;
}
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
index 14aa5ef..4e2b308 100644
--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c
@@ -58,23 +58,9 @@
.create = lowpan_header_create,
};
-static struct lock_class_key lowpan_tx_busylock;
-static struct lock_class_key lowpan_netdev_xmit_lock_key;
-static struct lock_class_key lowpan_qdisc_running_key;
-
-static void lowpan_set_lockdep_class_one(struct net_device *ldev,
- struct netdev_queue *txq,
- void *_unused)
-{
- lockdep_set_class(&txq->_xmit_lock,
- &lowpan_netdev_xmit_lock_key);
-}
-
static int lowpan_dev_init(struct net_device *ldev)
{
- netdev_for_each_tx_queue(ldev, lowpan_set_lockdep_class_one, NULL);
- ldev->qdisc_tx_busylock = &lowpan_tx_busylock;
- ldev->qdisc_running_key = &lowpan_qdisc_running_key;
+ netdev_lockdep_set_classes(ldev);
return 0;
}
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index c00d72d..57fc5a4 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -67,9 +67,6 @@
return net_generic(net, l2tp_eth_net_id);
}
-static struct lock_class_key l2tp_eth_tx_busylock;
-static struct lock_class_key l2tp_qdisc_running_key;
-
static int l2tp_eth_dev_init(struct net_device *dev)
{
struct l2tp_eth *priv = netdev_priv(dev);
@@ -77,8 +74,7 @@
priv->dev = dev;
eth_hw_addr_random(dev);
eth_broadcast_addr(dev->broadcast);
- dev->qdisc_tx_busylock = &l2tp_eth_tx_busylock;
- dev->qdisc_running_key = &l2tp_qdisc_running_key;
+ netdev_lockdep_set_classes(dev);
return 0;
}