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netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.

Browse source 
The new address list lock needs to handle the same device layering
issues that the _xmit_lock one does.

This integrates work done by Patrick McHardy.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-07-22 14:16:42 -07:00
parent d29f749e25
commit cf508b1211
8 changed files with 40 additions and 6 deletions
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3
drivers/net/bonding/bond_main.c
View file

@ -5041,6 +5041,7 @@ 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 void bond_set_lockdep_class_one(struct net_device *dev,
struct netdev_queue *txq,
@ -5052,6 +5053,8 @@ static void bond_set_lockdep_class_one(struct net_device *dev,
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);
}

2
drivers/net/hamradio/bpqether.c
View file

@ -123,6 +123,7 @@ static LIST_HEAD(bpq_devices);
* off into a separate class since they always nest.
*/
static struct lock_class_key bpq_netdev_xmit_lock_key;
static struct lock_class_key bpq_netdev_addr_lock_key;
static void bpq_set_lockdep_class_one(struct net_device *dev,
struct netdev_queue *txq,
@ -133,6 +134,7 @@ static void bpq_set_lockdep_class_one(struct net_device *dev,
static void bpq_set_lockdep_class(struct net_device *dev)
{
lockdep_set_class(&dev->addr_list_lock, &bpq_netdev_addr_lock_key);
netdev_for_each_tx_queue(dev, bpq_set_lockdep_class_one, NULL);
}

3
drivers/net/macvlan.c
View file

@ -276,6 +276,7 @@ static int macvlan_change_mtu(struct net_device *dev, int new_mtu)
* separate class since they always nest.
*/
static struct lock_class_key macvlan_netdev_xmit_lock_key;
static struct lock_class_key macvlan_netdev_addr_lock_key;
#define MACVLAN_FEATURES \
(NETIF_F_SG | NETIF_F_ALL_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
@ -295,6 +296,8 @@ static void macvlan_set_lockdep_class_one(struct net_device *dev,
static void macvlan_set_lockdep_class(struct net_device *dev)
{
lockdep_set_class(&dev->addr_list_lock,
&macvlan_netdev_addr_lock_key);
netdev_for_each_tx_queue(dev, macvlan_set_lockdep_class_one, NULL);
}

3
drivers/net/wireless/hostap/hostap_hw.c
View file

@ -3101,6 +3101,7 @@ static void prism2_clear_set_tim_queue(local_info_t *local)
* This is a natural nesting, which needs a split lock type.
*/
static struct lock_class_key hostap_netdev_xmit_lock_key;
static struct lock_class_key hostap_netdev_addr_lock_key;
static void prism2_set_lockdep_class_one(struct net_device *dev,
struct netdev_queue *txq,
@ -3112,6 +3113,8 @@ static void prism2_set_lockdep_class_one(struct net_device *dev,
static void prism2_set_lockdep_class(struct net_device *dev)
{
lockdep_set_class(&dev->addr_list_lock,
&hostap_netdev_addr_lock_key);
netdev_for_each_tx_queue(dev, prism2_set_lockdep_class_one, NULL);
}

4
net/8021q/vlan_dev.c
View file

@ -569,6 +569,7 @@ static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
* separate class since they always nest.
*/
static struct lock_class_key vlan_netdev_xmit_lock_key;
static struct lock_class_key vlan_netdev_addr_lock_key;
static void vlan_dev_set_lockdep_one(struct net_device *dev,
struct netdev_queue *txq,
@ -581,6 +582,9 @@ static void vlan_dev_set_lockdep_one(struct net_device *dev,
static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
{
lockdep_set_class_and_subclass(&dev->addr_list_lock,
&vlan_netdev_addr_lock_key,
subclass);
netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
}

23
net/core/dev.c
View file

@ -261,7 +261,7 @@ static RAW_NOTIFIER_HEAD(netdev_chain);
DEFINE_PER_CPU(struct softnet_data, softnet_data);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#ifdef CONFIG_LOCKDEP
/*
* register_netdevice() inits txq->_xmit_lock and sets lockdep class
* according to dev->type
@ -301,6 +301,7 @@ static const char *netdev_lock_name[] =
"_xmit_NONE"};
static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)];
static inline unsigned short netdev_lock_pos(unsigned short dev_type)
{
@ -313,7 +314,7 @@ static inline unsigned short netdev_lock_pos(unsigned short dev_type)
return ARRAY_SIZE(netdev_lock_type) - 1;
}
static inline void netdev_set_lockdep_class(spinlock_t *lock,
static inline void netdev_set_xmit_lockdep_class(spinlock_t *lock,
unsigned short dev_type)
{
int i;
@ -322,11 +323,24 @@ static inline void netdev_set_lockdep_class(spinlock_t *lock,
lockdep_set_class_and_name(lock, &netdev_xmit_lock_key[i],
netdev_lock_name[i]);
}
static inline void netdev_set_addr_lockdep_class(struct net_device *dev)
{
int i;
i = netdev_lock_pos(dev->type);
lockdep_set_class_and_name(&dev->addr_list_lock,
&netdev_addr_lock_key[i],
netdev_lock_name[i]);
}
#else
static inline void netdev_set_lockdep_class(spinlock_t *lock,
static inline void netdev_set_xmit_lockdep_class(spinlock_t *lock,
unsigned short dev_type)
{
}
static inline void netdev_set_addr_lockdep_class(struct net_device *dev)
{
}
#endif
/*******************************************************************************
@ -3851,7 +3865,7 @@ static void __netdev_init_queue_locks_one(struct net_device *dev,
void *_unused)
{
spin_lock_init(&dev_queue->_xmit_lock);
netdev_set_lockdep_class(&dev_queue->_xmit_lock, dev->type);
netdev_set_xmit_lockdep_class(&dev_queue->_xmit_lock, dev->type);
dev_queue->xmit_lock_owner = -1;
}
@ -3896,6 +3910,7 @@ int register_netdevice(struct net_device *dev)
net = dev_net(dev);
spin_lock_init(&dev->addr_list_lock);
netdev_set_addr_lockdep_class(dev);
netdev_init_queue_locks(dev);
dev->iflink = -1;

2
net/netrom/af_netrom.c
View file

@ -73,6 +73,7 @@ static const struct proto_ops nr_proto_ops;
* separate class since they always nest.
*/
static struct lock_class_key nr_netdev_xmit_lock_key;
static struct lock_class_key nr_netdev_addr_lock_key;
static void nr_set_lockdep_one(struct net_device *dev,
struct netdev_queue *txq,
@ -83,6 +84,7 @@ static void nr_set_lockdep_one(struct net_device *dev,
static void nr_set_lockdep_key(struct net_device *dev)
{
lockdep_set_class(&dev->addr_list_lock, &nr_netdev_addr_lock_key);
netdev_for_each_tx_queue(dev, nr_set_lockdep_one, NULL);
}

2
net/rose/af_rose.c
View file

@ -74,6 +74,7 @@ ax25_address rose_callsign;
* separate class since they always nest.
*/
static struct lock_class_key rose_netdev_xmit_lock_key;
static struct lock_class_key rose_netdev_addr_lock_key;
static void rose_set_lockdep_one(struct net_device *dev,
struct netdev_queue *txq,
@ -84,6 +85,7 @@ static void rose_set_lockdep_one(struct net_device *dev,
static void rose_set_lockdep_key(struct net_device *dev)
{
lockdep_set_class(&dev->addr_list_lock, &rose_netdev_addr_lock_key);
netdev_for_each_tx_queue(dev, rose_set_lockdep_one, NULL);
}