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Date: Wed, 8 Jun 2016 16:55:24 -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 net-next 1/4] 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.
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
drivers/net/bonding/bond_main.c | 5 +----
drivers/net/ppp/ppp_generic.c | 6 +-----
drivers/net/team/team.c | 5 +----
include/linux/netdevice.h | 9 +++++++++
net/bluetooth/6lowpan.c | 5 +----
net/ieee802154/6lowpan/core.c | 5 +----
net/l2tp/l2tp_eth.c | 6 +-----
7 files changed, 15 insertions(+), 26 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 681af31a60ed..a729f0f8cb7b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4609,8 +4609,6 @@ static int bond_check_params(struct bond_params *params)
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,
@@ -4625,8 +4623,7 @@ 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;
+ netdev_lockdep_set_classes(dev);
}
/* Called from registration process */
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index aeabaa42317f..17953ab15000 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -1312,13 +1312,9 @@ ppp_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats64)
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 00eb38956a2c..d01ad0d2658b 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1576,8 +1576,6 @@ static const struct team_option team_options[] = {
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,
@@ -1590,8 +1588,7 @@ 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;
+ netdev_lockdep_set_classes(dev);
}
static int team_init(struct net_device *dev)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 59d7e06d88d5..3d61192159d5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1945,6 +1945,15 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev,
f(dev, &dev->_tx[i], arg);
}
+#define netdev_lockdep_set_classes(dev) \
+{ \
+ static struct lock_class_key tx_busylock_key; \
+ static struct lock_class_key qdisc_running_key; \
+ \
+ dev->qdisc_tx_busylock = &tx_busylock_key; \
+ dev->qdisc_running_key = &qdisc_running_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 977a11e418d0..0da875a69e47 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -627,9 +627,7 @@ static netdev_tx_t bt_xmit(struct sk_buff *skb, struct net_device *netdev)
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,
@@ -641,8 +639,7 @@ static void bt_set_lockdep_class_one(struct net_device *dev,
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 14aa5effd29a..139dbe3f7cc6 100644
--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c
@@ -58,9 +58,7 @@ static struct header_ops lowpan_header_ops = {
.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,
@@ -73,8 +71,7 @@ static void lowpan_set_lockdep_class_one(struct net_device *ldev,
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 c00d72d182fa..57fc5a46ce06 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -67,9 +67,6 @@ static inline struct l2tp_eth_net *l2tp_eth_pernet(struct net *net)
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 @@ static int l2tp_eth_dev_init(struct net_device *dev)
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;
}
--
2.8.0.rc3.226.g39d4020
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