diff options
| -rw-r--r-- | drivers/net/dummy.c | 57 | ||||
| -rw-r--r-- | drivers/net/ifb.c | 58 | ||||
| -rw-r--r-- | net/8021q/vlan.c | 21 | ||||
| -rw-r--r-- | net/core/rtnetlink.c | 18 |
4 files changed, 23 insertions, 131 deletions
diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c index 91126b9..373ff70 100644 --- a/drivers/net/dummy.c +++ b/drivers/net/dummy.c @@ -37,11 +37,6 @@ #include <linux/rtnetlink.h> #include <net/rtnetlink.h> -struct dummy_priv { - struct net_device *dev; - struct list_head list; -}; - static int numdummies = 1; static int dummy_xmit(struct sk_buff *skb, struct net_device *dev); @@ -89,37 +84,9 @@ static int dummy_xmit(struct sk_buff *skb, struct net_device *dev) return 0; } -static LIST_HEAD(dummies); - -static int dummy_newlink(struct net_device *dev, - struct nlattr *tb[], struct nlattr *data[]) -{ - struct dummy_priv *priv = netdev_priv(dev); - int err; - - err = register_netdevice(dev); - if (err < 0) - return err; - - priv->dev = dev; - list_add_tail(&priv->list, &dummies); - return 0; -} - -static void dummy_dellink(struct net_device *dev) -{ - struct dummy_priv *priv = netdev_priv(dev); - - list_del(&priv->list); - unregister_netdevice(dev); -} - static struct rtnl_link_ops dummy_link_ops __read_mostly = { .kind = "dummy", - .priv_size = sizeof(struct dummy_priv), .setup = dummy_setup, - .newlink = dummy_newlink, - .dellink = dummy_dellink, }; /* Number of dummy devices to be set up by this module. */ @@ -129,12 +96,9 @@ MODULE_PARM_DESC(numdummies, "Number of dummy pseudo devices"); static int __init dummy_init_one(void) { struct net_device *dev_dummy; - struct dummy_priv *priv; int err; - dev_dummy = alloc_netdev(sizeof(struct dummy_priv), "dummy%d", - dummy_setup); - + dev_dummy = alloc_netdev(0, "dummy%d", dummy_setup); if (!dev_dummy) return -ENOMEM; @@ -146,10 +110,6 @@ static int __init dummy_init_one(void) err = register_netdevice(dev_dummy); if (err < 0) goto err; - - priv = netdev_priv(dev_dummy); - priv->dev = dev_dummy; - list_add_tail(&priv->list, &dummies); return 0; err: @@ -159,7 +119,6 @@ err: static int __init dummy_init_module(void) { - struct dummy_priv *priv, *next; int i, err = 0; rtnl_lock(); @@ -167,11 +126,8 @@ static int __init dummy_init_module(void) for (i = 0; i < numdummies && !err; i++) err = dummy_init_one(); - if (err < 0) { - list_for_each_entry_safe(priv, next, &dummies, list) - dummy_dellink(priv->dev); + if (err < 0) __rtnl_link_unregister(&dummy_link_ops); - } rtnl_unlock(); return err; @@ -179,14 +135,7 @@ static int __init dummy_init_module(void) static void __exit dummy_cleanup_module(void) { - struct dummy_priv *priv, *next; - - rtnl_lock(); - list_for_each_entry_safe(priv, next, &dummies, list) - dummy_dellink(priv->dev); - - __rtnl_link_unregister(&dummy_link_ops); - rtnl_unlock(); + rtnl_link_unregister(&dummy_link_ops); } module_init(dummy_init_module); diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c index 669ee1a..c8e7c8f 100644 --- a/drivers/net/ifb.c +++ b/drivers/net/ifb.c @@ -33,15 +33,12 @@ #include <linux/etherdevice.h> #include <linux/init.h> #include <linux/moduleparam.h> -#include <linux/list.h> #include <net/pkt_sched.h> #define TX_TIMEOUT (2*HZ) #define TX_Q_LIMIT 32 struct ifb_private { - struct list_head list; - struct net_device *dev; struct net_device_stats stats; struct tasklet_struct ifb_tasklet; int tasklet_pending; @@ -201,12 +198,6 @@ static struct net_device_stats *ifb_get_stats(struct net_device *dev) return stats; } -static LIST_HEAD(ifbs); - -/* Number of ifb devices to be set up by this module. */ -module_param(numifbs, int, 0); -MODULE_PARM_DESC(numifbs, "Number of ifb devices"); - static int ifb_close(struct net_device *dev) { struct ifb_private *dp = netdev_priv(dev); @@ -230,41 +221,19 @@ static int ifb_open(struct net_device *dev) return 0; } -static int ifb_newlink(struct net_device *dev, - struct nlattr *tb[], struct nlattr *data[]) -{ - struct ifb_private *priv = netdev_priv(dev); - int err; - - err = register_netdevice(dev); - if (err < 0) - return err; - - priv->dev = dev; - list_add_tail(&priv->list, &ifbs); - return 0; -} - -static void ifb_dellink(struct net_device *dev) -{ - struct ifb_private *priv = netdev_priv(dev); - - list_del(&priv->list); - unregister_netdevice(dev); -} - static struct rtnl_link_ops ifb_link_ops __read_mostly = { .kind = "ifb", .priv_size = sizeof(struct ifb_private), .setup = ifb_setup, - .newlink = ifb_newlink, - .dellink = ifb_dellink, }; +/* Number of ifb devices to be set up by this module. */ +module_param(numifbs, int, 0); +MODULE_PARM_DESC(numifbs, "Number of ifb devices"); + static int __init ifb_init_one(int index) { struct net_device *dev_ifb; - struct ifb_private *priv; int err; dev_ifb = alloc_netdev(sizeof(struct ifb_private), @@ -281,10 +250,6 @@ static int __init ifb_init_one(int index) err = register_netdevice(dev_ifb); if (err < 0) goto err; - - priv = netdev_priv(dev_ifb); - priv->dev = dev_ifb; - list_add_tail(&priv->list, &ifbs); return 0; err: @@ -294,7 +259,6 @@ err: static int __init ifb_init_module(void) { - struct ifb_private *priv, *next; int i, err; rtnl_lock(); @@ -302,11 +266,8 @@ static int __init ifb_init_module(void) for (i = 0; i < numifbs && !err; i++) err = ifb_init_one(i); - if (err) { - list_for_each_entry_safe(priv, next, &ifbs, list) - ifb_dellink(priv->dev); + if (err) __rtnl_link_unregister(&ifb_link_ops); - } rtnl_unlock(); return err; @@ -314,14 +275,7 @@ static int __init ifb_init_module(void) static void __exit ifb_cleanup_module(void) { - struct ifb_private *priv, *next; - - rtnl_lock(); - list_for_each_entry_safe(priv, next, &ifbs, list) - ifb_dellink(priv->dev); - - __rtnl_link_unregister(&ifb_link_ops); - rtnl_unlock(); + rtnl_link_unregister(&ifb_link_ops); } module_init(ifb_init_module); diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index b463ba4..34c1d0b 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -115,26 +115,6 @@ err1: return err; } -/* Cleanup all vlan devices - * Note: devices that have been registered that but not - * brought up will exist but have no module ref count. - */ -static void __exit vlan_cleanup_devices(void) -{ - struct net_device *dev, *nxt; - - rtnl_lock(); - for_each_netdev_safe(dev, nxt) { - if (dev->priv_flags & IFF_802_1Q_VLAN) { - unregister_vlan_dev(VLAN_DEV_INFO(dev)->real_dev, - VLAN_DEV_INFO(dev)->vlan_id); - - unregister_netdevice(dev); - } - } - rtnl_unlock(); -} - /* * Module 'remove' entry point. * o delete /proc/net/router directory and static entries. @@ -150,7 +130,6 @@ static void __exit vlan_cleanup_module(void) unregister_netdevice_notifier(&vlan_notifier_block); dev_remove_pack(&vlan_packet_type); - vlan_cleanup_devices(); /* This table must be empty if there are no module * references left. diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 54c17e4..7b6b163 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -270,6 +270,9 @@ static LIST_HEAD(link_ops); */ int __rtnl_link_register(struct rtnl_link_ops *ops) { + if (!ops->dellink) + ops->dellink = unregister_netdevice; + list_add_tail(&ops->list, &link_ops); return 0; } @@ -298,12 +301,16 @@ EXPORT_SYMBOL_GPL(rtnl_link_register); * __rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink. * @ops: struct rtnl_link_ops * to unregister * - * The caller must hold the rtnl_mutex. This function should be used - * by drivers that unregister devices during module unloading. It must - * be called after unregistering the devices. + * The caller must hold the rtnl_mutex. */ void __rtnl_link_unregister(struct rtnl_link_ops *ops) { + struct net_device *dev, *n; + + for_each_netdev_safe(dev, n) { + if (dev->rtnl_link_ops == ops) + ops->dellink(dev); + } list_del(&ops->list); } @@ -1067,7 +1074,10 @@ replay: if (tb[IFLA_LINKMODE]) dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); - err = ops->newlink(dev, tb, data); + if (ops->newlink) + err = ops->newlink(dev, tb, data); + else + err = register_netdevice(dev); err_free: if (err < 0) free_netdev(dev); |