Commit d314774c authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

netdev: network device operations infrastructure 



This patch changes the network device internal API to move adminstrative
operations out of the network device structure and into a separate structure.

This patch involves some hackery to maintain compatablity between the
new and old model, so all 300+ drivers don't have to be changed at once.
For drivers that aren't converted yet, the netdevice_ops virt function list
still resides in the net_device structure. For old protocols, the new
net_device_ops are copied out to the old net_device pointers.

After the transistion is completed the nag message can be changed to
an WARN_ON, and the compatiablity code can be made configurable.

Some function pointers aren't moved:
* destructor can't be in net_device_ops because
  it may need to be referenced after the module is unloaded.
* neighbor setup is manipulated in a couple of places that need special
  consideration
* hard_start_xmit is in the fast path for transmit.

Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6b41e7dd

include/linux/netdevice.h

+168 −64
Original line number Diff line number Diff line
@@ -451,6 +451,131 @@ struct netdev_queue { 
	struct Qdisc		*qdisc_sleeping;

} ____cacheline_aligned_in_smp;





/*

 * This structure defines the management hooks for network devices.

 * The following hooks can bed defined and are optonal (can be null)

 * unless otherwise noted.

 *

 * int (*ndo_init)(struct net_device *dev);

 *     This function is called once when network device is registered.

 *     The network device can use this to any late stage initializaton

 *     or semantic validattion. It can fail with an error code which will

 *     be propogated back to register_netdev

 *

 * void (*ndo_uninit)(struct net_device *dev);

 *     This function is called when device is unregistered or when registration

 *     fails. It is not called if init fails.

 *

 * int (*ndo_open)(struct net_device *dev);

 *     This function is called when network device transistions to the up

 *     state.

 *

 * int (*ndo_stop)(struct net_device *dev);

 *     This function is called when network device transistions to the down

 *     state.

 *

 * void (*ndo_change_rx_flags)(struct net_device *dev, int flags);

 *	This function is called to allow device receiver to make

 *	changes to configuration when multicast or promiscious is enabled.

 *

 * void (*ndo_set_rx_mode)(struct net_device *dev);

 *	This function is called device changes address list filtering.

 *

 * void (*ndo_set_multicast_list)(struct net_device *dev);

 *	This function is called when the multicast address list changes.

 *

 * int (*ndo_set_mac_address)(struct net_device *dev, void *addr);

 *	This function  is called when the Media Access Control address

 *	needs to be changed. If not this interface is not defined, the

 *	mac address can not be changed.

 *

 * int (*ndo_validate_addr)(struct net_device *dev);

 *	Test if Media Access Control address is valid for the device.

 *

 * int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);

 *	Called when a user request an ioctl which can't be handled by

 *	the generic interface code. If not defined ioctl's return

 *	not supported error code.

 *

 * int (*ndo_set_config)(struct net_device *dev, struct ifmap *map);

 *	Used to set network devices bus interface parameters. This interface

 *	is retained for legacy reason, new devices should use the bus

 *	interface (PCI) for low level management.

 *

 * int (*ndo_change_mtu)(struct net_device *dev, int new_mtu);

 *	Called when a user wants to change the Maximum Transfer Unit

 *	of a device. If not defined, any request to change MTU will

 *	will return an error.

 *

 * void (*ndo_tx_timeout) (struct net_device *dev);

 *	Callback uses when the transmitter has not made any progress

 *	for dev->watchdog ticks.

 *

 * struct net_device_stats* (*get_stats)(struct net_device *dev);

 *	Called when a user wants to get the network device usage

 *	statistics. If not defined, the counters in dev->stats will

 *	be used.

 *

 * void (*ndo_vlan_rx_register)(struct net_device *dev, struct vlan_group *grp);

 *	If device support VLAN receive accleration

 *	(ie. dev->features & NETIF_F_HW_VLAN_RX), then this function is called

 *	when vlan groups for the device changes.  Note: grp is NULL

 *	if no vlan's groups are being used.

 *

 * void (*ndo_vlan_rx_add_vid)(struct net_device *dev, unsigned short vid);

 *	If device support VLAN filtering (dev->features & NETIF_F_HW_VLAN_FILTER)

 *	this function is called when a VLAN id is registered.

 *

 * void (*ndo_vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid);

 *	If device support VLAN filtering (dev->features & NETIF_F_HW_VLAN_FILTER)

 *	this function is called when a VLAN id is unregistered.

 *

 * void (*ndo_poll_controller)(struct net_device *dev);

 */

struct net_device_ops {

	int			(*ndo_init)(struct net_device *dev);

	void			(*ndo_uninit)(struct net_device *dev);

	int			(*ndo_open)(struct net_device *dev);

	int			(*ndo_stop)(struct net_device *dev);

#define HAVE_CHANGE_RX_FLAGS

	void			(*ndo_change_rx_flags)(struct net_device *dev,

						       int flags);

#define HAVE_SET_RX_MODE

	void			(*ndo_set_rx_mode)(struct net_device *dev);

#define HAVE_MULTICAST

	void			(*ndo_set_multicast_list)(struct net_device *dev);

#define HAVE_SET_MAC_ADDR

	int			(*ndo_set_mac_address)(struct net_device *dev,

						       void *addr);

#define HAVE_VALIDATE_ADDR

	int			(*ndo_validate_addr)(struct net_device *dev);

#define HAVE_PRIVATE_IOCTL

	int			(*ndo_do_ioctl)(struct net_device *dev,

					        struct ifreq *ifr, int cmd);

#define HAVE_SET_CONFIG

	int			(*ndo_set_config)(struct net_device *dev,

					          struct ifmap *map);

#define HAVE_CHANGE_MTU

	int			(*ndo_change_mtu)(struct net_device *dev, int new_mtu);



#define HAVE_TX_TIMEOUT

	void			(*ndo_tx_timeout) (struct net_device *dev);



	struct net_device_stats* (*ndo_get_stats)(struct net_device *dev);



	void			(*ndo_vlan_rx_register)(struct net_device *dev,

						        struct vlan_group *grp);

	void			(*ndo_vlan_rx_add_vid)(struct net_device *dev,

						       unsigned short vid);

	void			(*ndo_vlan_rx_kill_vid)(struct net_device *dev,

						        unsigned short vid);

#ifdef CONFIG_NET_POLL_CONTROLLER

#define HAVE_NETDEV_POLL

	void                    (*ndo_poll_controller)(struct net_device *dev);

#endif

};



/*

 *	The DEVICE structure.

 *	Actually, this whole structure is a big mistake.  It mixes I/O
@@ -499,11 +624,6 @@ struct net_device 
	struct list_head	napi_list;

#endif



	/* The device initialization function. Called only once. */

	int			(*init)(struct net_device *dev);



	/* ------- Fields preinitialized in Space.c finish here ------- */



	/* Net device features */

	unsigned long		features;

#define NETIF_F_SG		1	/* Scatter/gather IO. */
@@ -553,8 +673,6 @@ struct net_device 
	int			ifindex;

	int			iflink;





	struct net_device_stats* (*get_stats)(struct net_device *dev);

	struct net_device_stats	stats;



#ifdef CONFIG_WIRELESS_EXT
@@ -564,18 +682,13 @@ struct net_device 
	/* Instance data managed by the core of Wireless Extensions. */

	struct iw_public_data *	wireless_data;

#endif

	/* Management operations */

	const struct net_device_ops *netdev_ops;

	const struct ethtool_ops *ethtool_ops;



	/* Hardware header description */

	const struct header_ops *header_ops;



	/*

	 * This marks the end of the "visible" part of the structure. All

	 * fields hereafter are internal to the system, and may change at

	 * will (read: may be cleaned up at will).

	 */





	unsigned int		flags;	/* interface flags (a la BSD)	*/

	unsigned short		gflags;

        unsigned short          priv_flags; /* Like 'flags' but invisible to userspace. */
@@ -648,6 +761,10 @@ struct net_device 
	/* Number of TX queues currently active in device  */

	unsigned int		real_num_tx_queues;



	/* Map buffer to appropriate transmit queue */

	u16			(*select_queue)(struct net_device *dev,

						struct sk_buff *skb);



	unsigned long		tx_queue_len;	/* Max frames per queue allowed */

	spinlock_t		tx_global_lock;

/*
@@ -662,9 +779,6 @@ struct net_device 
	int			watchdog_timeo; /* used by dev_watchdog() */

	struct timer_list	watchdog_timer;



/*

 * refcnt is a very hot point, so align it on SMP

 */

	/* Number of references to this device */

	atomic_t		refcnt ____cacheline_aligned_in_smp;
@@ -683,56 +797,14 @@ struct net_device 
	       NETREG_RELEASED,		/* called free_netdev */

	} reg_state;



	/* Called after device is detached from network. */

	void			(*uninit)(struct net_device *dev);

	/* Called after last user reference disappears. */

	/* Called from unregister, can be used to call free_netdev */

	void (*destructor)(struct net_device *dev);



	/* Pointers to interface service routines.	*/

	int			(*open)(struct net_device *dev);

	int			(*stop)(struct net_device *dev);

#define HAVE_NETDEV_POLL

#define HAVE_CHANGE_RX_FLAGS

	void			(*change_rx_flags)(struct net_device *dev,

						   int flags);

#define HAVE_SET_RX_MODE

	void			(*set_rx_mode)(struct net_device *dev);

#define HAVE_MULTICAST			 

	void			(*set_multicast_list)(struct net_device *dev);

#define HAVE_SET_MAC_ADDR  		 

	int			(*set_mac_address)(struct net_device *dev,

						   void *addr);

#define HAVE_VALIDATE_ADDR

	int			(*validate_addr)(struct net_device *dev);

#define HAVE_PRIVATE_IOCTL

	int			(*do_ioctl)(struct net_device *dev,

					    struct ifreq *ifr, int cmd);

#define HAVE_SET_CONFIG

	int			(*set_config)(struct net_device *dev,

					      struct ifmap *map);

#define HAVE_CHANGE_MTU

	int			(*change_mtu)(struct net_device *dev, int new_mtu);



#define HAVE_TX_TIMEOUT

	void			(*tx_timeout) (struct net_device *dev);



	void			(*vlan_rx_register)(struct net_device *dev,

						    struct vlan_group *grp);

	void			(*vlan_rx_add_vid)(struct net_device *dev,

						   unsigned short vid);

	void			(*vlan_rx_kill_vid)(struct net_device *dev,

						    unsigned short vid);



	int (*neigh_setup)(struct net_device *dev, struct neigh_parms *);



#ifdef CONFIG_NETPOLL

	struct netpoll_info	*npinfo;

#endif

#ifdef CONFIG_NET_POLL_CONTROLLER

	void                    (*poll_controller)(struct net_device *dev);

#endif



	u16			(*select_queue)(struct net_device *dev,

						struct sk_buff *skb);



#ifdef CONFIG_NET_NS

	/* Network namespace this network device is inside */
@@ -763,6 +835,38 @@ struct net_device 
	/* for setting kernel sock attribute on TCP connection setup */

#define GSO_MAX_SIZE		65536

	unsigned int		gso_max_size;



#ifdef CONFIG_COMPAT_NET_DEV_OPS

	struct {

		int			(*init)(struct net_device *dev);

		void			(*uninit)(struct net_device *dev);

		int			(*open)(struct net_device *dev);

		int			(*stop)(struct net_device *dev);

		void			(*change_rx_flags)(struct net_device *dev,

							   int flags);

		void			(*set_rx_mode)(struct net_device *dev);

		void			(*set_multicast_list)(struct net_device *dev);

		int			(*set_mac_address)(struct net_device *dev,

							   void *addr);

		int			(*validate_addr)(struct net_device *dev);

		int			(*do_ioctl)(struct net_device *dev,

						    struct ifreq *ifr, int cmd);

		int			(*set_config)(struct net_device *dev,

						      struct ifmap *map);

		int			(*change_mtu)(struct net_device *dev, int new_mtu);

		void			(*tx_timeout) (struct net_device *dev);

		struct net_device_stats* (*get_stats)(struct net_device *dev);

		void			(*vlan_rx_register)(struct net_device *dev,

							    struct vlan_group *grp);

		void			(*vlan_rx_add_vid)(struct net_device *dev,

							   unsigned short vid);

		void			(*vlan_rx_kill_vid)(struct net_device *dev,

							    unsigned short vid);

#ifdef CONFIG_NET_POLL_CONTROLLER

		void                    (*poll_controller)(struct net_device *dev);

#endif

#endif

	};

};

#define to_net_dev(d) container_of(d, struct net_device, dev)

net/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -32,6 +32,9 @@ config NET_NS 
	  Allow user space to create what appear to be multiple instances

	  of the network stack.



config COMPAT_NET_DEV_OPS

       def_bool y



source "net/packet/Kconfig"

source "net/unix/Kconfig"

source "net/xfrm/Kconfig"

net/core/dev.c

+77 −32
Original line number Diff line number Diff line
@@ -1059,6 +1059,7 @@ void dev_load(struct net *net, const char *name) 
 */

int dev_open(struct net_device *dev)

{

	const struct net_device_ops *ops = dev->netdev_ops;

	int ret = 0;



	ASSERT_RTNL();
@@ -1081,11 +1082,11 @@ int dev_open(struct net_device *dev) 
	 */

	set_bit(__LINK_STATE_START, &dev->state);



	if (dev->validate_addr)

		ret = dev->validate_addr(dev);

	if (ops->ndo_validate_addr)

		ret = ops->ndo_validate_addr(dev);



	if (!ret && dev->open)

		ret = dev->open(dev);

	if (!ret && ops->ndo_open)

		ret = ops->ndo_open(dev);



	/*

	 *	If it went open OK then:
@@ -1129,6 +1130,7 @@ int dev_open(struct net_device *dev) 
 */

int dev_close(struct net_device *dev)

{

	const struct net_device_ops *ops = dev->netdev_ops;

	ASSERT_RTNL();



	might_sleep();
@@ -1161,8 +1163,8 @@ int dev_close(struct net_device *dev) 
	 *	We allow it to be called even after a DETACH hot-plug

	 *	event.

	 */

	if (dev->stop)

		dev->stop(dev);

	if (ops->ndo_stop)

		ops->ndo_stop(dev);



	/*

	 *	Device is now down.
@@ -2930,8 +2932,10 @@ int netdev_set_master(struct net_device *slave, struct net_device *master) 


static void dev_change_rx_flags(struct net_device *dev, int flags)

{

	if (dev->flags & IFF_UP && dev->change_rx_flags)

		dev->change_rx_flags(dev, flags);

	const struct net_device_ops *ops = dev->netdev_ops;



	if ((dev->flags & IFF_UP) && ops->ndo_change_rx_flags)

		ops->ndo_change_rx_flags(dev, flags);

}



static int __dev_set_promiscuity(struct net_device *dev, int inc)
@@ -3051,6 +3055,8 @@ int dev_set_allmulti(struct net_device *dev, int inc) 
 */

void __dev_set_rx_mode(struct net_device *dev)

{

	const struct net_device_ops *ops = dev->netdev_ops;



	/* dev_open will call this function so the list will stay sane. */

	if (!(dev->flags&IFF_UP))

		return;
@@ -3058,8 +3064,8 @@ void __dev_set_rx_mode(struct net_device *dev) 
	if (!netif_device_present(dev))

		return;



	if (dev->set_rx_mode)

		dev->set_rx_mode(dev);

	if (ops->ndo_set_rx_mode)

		ops->ndo_set_rx_mode(dev);

	else {

		/* Unicast addresses changes may only happen under the rtnl,

		 * therefore calling __dev_set_promiscuity here is safe.
@@ -3072,8 +3078,8 @@ void __dev_set_rx_mode(struct net_device *dev) 
			dev->uc_promisc = 0;

		}



		if (dev->set_multicast_list)

			dev->set_multicast_list(dev);

		if (ops->ndo_set_multicast_list)

			ops->ndo_set_multicast_list(dev);

	}

}
@@ -3432,6 +3438,7 @@ int dev_change_flags(struct net_device *dev, unsigned flags) 
 */

int dev_set_mtu(struct net_device *dev, int new_mtu)

{

	const struct net_device_ops *ops = dev->netdev_ops;

	int err;



	if (new_mtu == dev->mtu)
@@ -3445,10 +3452,11 @@ int dev_set_mtu(struct net_device *dev, int new_mtu) 
		return -ENODEV;



	err = 0;

	if (dev->change_mtu)

		err = dev->change_mtu(dev, new_mtu);

	if (ops->ndo_change_mtu)

		err = ops->ndo_change_mtu(dev, new_mtu);

	else

		dev->mtu = new_mtu;



	if (!err && dev->flags & IFF_UP)

		call_netdevice_notifiers(NETDEV_CHANGEMTU, dev);

	return err;
@@ -3463,15 +3471,16 @@ int dev_set_mtu(struct net_device *dev, int new_mtu) 
 */

int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa)

{

	const struct net_device_ops *ops = dev->netdev_ops;

	int err;



	if (!dev->set_mac_address)

	if (!ops->ndo_set_mac_address)

		return -EOPNOTSUPP;

	if (sa->sa_family != dev->type)

		return -EINVAL;

	if (!netif_device_present(dev))

		return -ENODEV;

	err = dev->set_mac_address(dev, sa);

	err = ops->ndo_set_mac_address(dev, sa);

	if (!err)

		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);

	return err;
@@ -3551,6 +3560,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) 
{

	int err;

	struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);

	const struct net_device_ops *ops = dev->netdev_ops;



	if (!dev)

		return -ENODEV;
@@ -3578,15 +3588,15 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) 
			return 0;



		case SIOCSIFMAP:

			if (dev->set_config) {

			if (ops->ndo_set_config) {

				if (!netif_device_present(dev))

					return -ENODEV;

				return dev->set_config(dev, &ifr->ifr_map);

				return ops->ndo_set_config(dev, &ifr->ifr_map);

			}

			return -EOPNOTSUPP;



		case SIOCADDMULTI:

			if ((!dev->set_multicast_list && !dev->set_rx_mode) ||

			if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) ||

			    ifr->ifr_hwaddr.sa_family != AF_UNSPEC)

				return -EINVAL;

			if (!netif_device_present(dev))
@@ -3595,7 +3605,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) 
					  dev->addr_len, 1);



		case SIOCDELMULTI:

			if ((!dev->set_multicast_list && !dev->set_rx_mode) ||

			if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) ||

			    ifr->ifr_hwaddr.sa_family != AF_UNSPEC)

				return -EINVAL;

			if (!netif_device_present(dev))
@@ -3633,10 +3643,9 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) 
			    cmd == SIOCBRDELIF ||

			    cmd == SIOCWANDEV) {

				err = -EOPNOTSUPP;

				if (dev->do_ioctl) {

				if (ops->ndo_do_ioctl) {

					if (netif_device_present(dev))

						err = dev->do_ioctl(dev, ifr,

								    cmd);

						err = ops->ndo_do_ioctl(dev, ifr, cmd);

					else

						err = -ENODEV;

				}
@@ -3897,8 +3906,8 @@ static void rollback_registered(struct net_device *dev) 
	 */

	dev_addr_discard(dev);



	if (dev->uninit)

		dev->uninit(dev);

	if (dev->netdev_ops->ndo_uninit)

		dev->netdev_ops->ndo_uninit(dev);



	/* Notifier chain MUST detach us from master device. */

	WARN_ON(dev->master);
@@ -3988,7 +3997,7 @@ int register_netdevice(struct net_device *dev) 
	struct hlist_head *head;

	struct hlist_node *p;

	int ret;

	struct net *net;

	struct net *net = dev_net(dev);



	BUG_ON(dev_boot_phase);

	ASSERT_RTNL();
@@ -3997,8 +4006,7 @@ int register_netdevice(struct net_device *dev) 


	/* When net_device's are persistent, this will be fatal. */

	BUG_ON(dev->reg_state != NETREG_UNINITIALIZED);

	BUG_ON(!dev_net(dev));

	net = dev_net(dev);

	BUG_ON(!net);



	spin_lock_init(&dev->addr_list_lock);

	netdev_set_addr_lockdep_class(dev);
@@ -4006,9 +4014,46 @@ int register_netdevice(struct net_device *dev) 


	dev->iflink = -1;



#ifdef CONFIG_COMPAT_NET_DEV_OPS

	/* Netdevice_ops API compatiability support.

	 * This is temporary until all network devices are converted.

	 */

	if (dev->netdev_ops) {

		const struct net_device_ops *ops = dev->netdev_ops;



		dev->init = ops->ndo_init;

		dev->uninit = ops->ndo_uninit;

		dev->open = ops->ndo_open;

		dev->change_rx_flags = ops->ndo_change_rx_flags;

		dev->set_rx_mode = ops->ndo_set_rx_mode;

		dev->set_multicast_list = ops->ndo_set_multicast_list;

		dev->set_mac_address = ops->ndo_set_mac_address;

		dev->validate_addr = ops->ndo_validate_addr;

		dev->do_ioctl = ops->ndo_do_ioctl;

		dev->set_config = ops->ndo_set_config;

		dev->change_mtu = ops->ndo_change_mtu;

		dev->tx_timeout = ops->ndo_tx_timeout;

		dev->get_stats = ops->ndo_get_stats;

		dev->vlan_rx_register = ops->ndo_vlan_rx_register;

		dev->vlan_rx_add_vid = ops->ndo_vlan_rx_add_vid;

		dev->vlan_rx_kill_vid = ops->ndo_vlan_rx_kill_vid;

#ifdef CONFIG_NET_POLL_CONTROLLER

		dev->poll_controller = ops->ndo_poll_controller;

#endif

	} else {

		char drivername[64];

		pr_info("%s (%s): not using net_device_ops yet\n",

			dev->name, netdev_drivername(dev, drivername, 64));



		/* This works only because net_device_ops and the

		   compatiablity structure are the same. */

		dev->netdev_ops = (void *) &(dev->init);

	}

#endif



	/* Init, if this function is available */

	if (dev->init) {

		ret = dev->init(dev);

	if (dev->netdev_ops->ndo_init) {

		ret = dev->netdev_ops->ndo_init(dev);

		if (ret) {

			if (ret > 0)

				ret = -EIO;
@@ -4086,8 +4131,8 @@ out: 
	return ret;



err_uninit:

	if (dev->uninit)

		dev->uninit(dev);

	if (dev->netdev_ops->ndo_uninit)

		dev->netdev_ops->ndo_uninit(dev);

	goto out;

}

net/core/netpoll.c

+4 −3
Original line number Diff line number Diff line
@@ -172,12 +172,13 @@ static void service_arp_queue(struct netpoll_info *npi) 
void netpoll_poll(struct netpoll *np)

{

	struct net_device *dev = np->dev;

	const struct net_device_ops *ops = dev->netdev_ops;



	if (!dev || !netif_running(dev) || !dev->poll_controller)

	if (!dev || !netif_running(dev) || !ops->ndo_poll_controller)

		return;



	/* Process pending work on NIC */

	dev->poll_controller(dev);

	ops->ndo_poll_controller(dev);



	poll_napi(dev);
@@ -694,7 +695,7 @@ int netpoll_setup(struct netpoll *np) 
		atomic_inc(&npinfo->refcnt);

	}



	if (!ndev->poll_controller) {

	if (!ndev->netdev_ops->ndo_poll_controller) {

		printk(KERN_ERR "%s: %s doesn't support polling, aborting.\n",

		       np->name, np->dev_name);

		err = -ENOTSUPP;

net/core/rtnetlink.c

+5 −4
Original line number Diff line number Diff line
@@ -762,6 +762,7 @@ static int validate_linkmsg(struct net_device *dev, struct nlattr *tb[]) 
static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,

		      struct nlattr **tb, char *ifname, int modified)

{

	const struct net_device_ops *ops = dev->netdev_ops;

	int send_addr_notify = 0;

	int err;
@@ -783,7 +784,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, 
		struct rtnl_link_ifmap *u_map;

		struct ifmap k_map;



		if (!dev->set_config) {

		if (!ops->ndo_set_config) {

			err = -EOPNOTSUPP;

			goto errout;

		}
@@ -801,7 +802,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, 
		k_map.dma = (unsigned char) u_map->dma;

		k_map.port = (unsigned char) u_map->port;



		err = dev->set_config(dev, &k_map);

		err = ops->ndo_set_config(dev, &k_map);

		if (err < 0)

			goto errout;
@@ -812,7 +813,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, 
		struct sockaddr *sa;

		int len;



		if (!dev->set_mac_address) {

		if (!ops->ndo_set_mac_address) {

			err = -EOPNOTSUPP;

			goto errout;

		}
@@ -831,7 +832,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, 
		sa->sa_family = dev->type;

		memcpy(sa->sa_data, nla_data(tb[IFLA_ADDRESS]),

		       dev->addr_len);

		err = dev->set_mac_address(dev, sa);

		err = ops->ndo_set_mac_address(dev, sa);

		kfree(sa);

		if (err)

			goto errout;

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