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Commit c4ba9993 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'dev_get_by_index' 



Ying Xue says:

====================
use appropriate APIs to get interfaces

Under rtnl_lock protection, we should use __dev_get_name/index()
rather than dev_get_name()/index() to find interface handlers
because the former interfaces can help us avoid to change interface
reference counter.

v2 changes:
 - Change return value of nl80211_set_wiphy() to 0 in patch #10
   by johannes's suggestion.
 - Add 'Acked-by' into several patches which were acknowledged by
   corresponding maintainers.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 85a5bac9 7f2b8562

drivers/net/bonding/bond_main.c

+23 −26
Original line number Diff line number Diff line
@@ -3213,13 +3213,13 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd 
	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))

		return -EPERM;



	slave_dev = dev_get_by_name(net, ifr->ifr_slave);

	slave_dev = __dev_get_by_name(net, ifr->ifr_slave);



	pr_debug("slave_dev=%p:\n", slave_dev);



	if (!slave_dev)

		res = -ENODEV;

	else {

		return -ENODEV;



	pr_debug("slave_dev->name=%s:\n", slave_dev->name);

	switch (cmd) {

	case BOND_ENSLAVE_OLD:
@@ -3243,9 +3243,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd 
		res = -EOPNOTSUPP;

	}



		dev_put(slave_dev);

	}



	return res;

}

drivers/net/eql.c

+42 −53
Original line number Diff line number Diff line
@@ -395,6 +395,7 @@ static int __eql_insert_slave(slave_queue_t *queue, slave_t *slave) 
		if (duplicate_slave)

			eql_kill_one_slave(queue, duplicate_slave);



		dev_hold(slave->dev);

		list_add(&slave->list, &queue->all_slaves);

		queue->num_slaves++;

		slave->dev->flags |= IFF_SLAVE;
@@ -413,20 +414,19 @@ static int eql_enslave(struct net_device *master_dev, slaving_request_t __user * 
	if (copy_from_user(&srq, srqp, sizeof (slaving_request_t)))

		return -EFAULT;



	slave_dev  = dev_get_by_name(&init_net, srq.slave_name);

	if (slave_dev) {

	slave_dev = __dev_get_by_name(&init_net, srq.slave_name);

	if (!slave_dev)

		return -ENODEV;



	if ((master_dev->flags & IFF_UP) == IFF_UP) {

		/* slave is not a master & not already a slave: */

			if (!eql_is_master(slave_dev) &&

			    !eql_is_slave(slave_dev)) {

		if (!eql_is_master(slave_dev) && !eql_is_slave(slave_dev)) {

			slave_t *s = kmalloc(sizeof(*s), GFP_KERNEL);

			equalizer_t *eql = netdev_priv(master_dev);

			int ret;



				if (!s) {

					dev_put(slave_dev);

			if (!s)

				return -ENOMEM;

				}



			memset(s, 0, sizeof(*s));

			s->dev = slave_dev;
@@ -436,17 +436,14 @@ static int eql_enslave(struct net_device *master_dev, slaving_request_t __user * 


			spin_lock_bh(&eql->queue.lock);

			ret = __eql_insert_slave(&eql->queue, s);

				if (ret) {

					dev_put(slave_dev);

			if (ret)

				kfree(s);

				}



			spin_unlock_bh(&eql->queue.lock);



			return ret;

		}

	}

		dev_put(slave_dev);

	}



	return -EINVAL;

}
@@ -461,24 +458,20 @@ static int eql_emancipate(struct net_device *master_dev, slaving_request_t __use 
	if (copy_from_user(&srq, srqp, sizeof (slaving_request_t)))

		return -EFAULT;



	slave_dev = dev_get_by_name(&init_net, srq.slave_name);

	slave_dev = __dev_get_by_name(&init_net, srq.slave_name);

	if (!slave_dev)

		return -ENODEV;



	ret = -EINVAL;

	if (slave_dev) {

	spin_lock_bh(&eql->queue.lock);



	if (eql_is_slave(slave_dev)) {

			slave_t *slave = __eql_find_slave_dev(&eql->queue,

							      slave_dev);



		slave_t *slave = __eql_find_slave_dev(&eql->queue, slave_dev);

		if (slave) {

			eql_kill_one_slave(&eql->queue, slave);

			ret = 0;

		}

	}

		dev_put(slave_dev);



	spin_unlock_bh(&eql->queue.lock);

	}



	return ret;

}
@@ -494,7 +487,7 @@ static int eql_g_slave_cfg(struct net_device *dev, slave_config_t __user *scp) 
	if (copy_from_user(&sc, scp, sizeof (slave_config_t)))

		return -EFAULT;



	slave_dev = dev_get_by_name(&init_net, sc.slave_name);

	slave_dev = __dev_get_by_name(&init_net, sc.slave_name);

	if (!slave_dev)

		return -ENODEV;
@@ -510,8 +503,6 @@ static int eql_g_slave_cfg(struct net_device *dev, slave_config_t __user *scp) 
	}

	spin_unlock_bh(&eql->queue.lock);



	dev_put(slave_dev);



	if (!ret && copy_to_user(scp, &sc, sizeof (slave_config_t)))

		ret = -EFAULT;
@@ -529,7 +520,7 @@ static int eql_s_slave_cfg(struct net_device *dev, slave_config_t __user *scp) 
	if (copy_from_user(&sc, scp, sizeof (slave_config_t)))

		return -EFAULT;



	slave_dev = dev_get_by_name(&init_net, sc.slave_name);

	slave_dev = __dev_get_by_name(&init_net, sc.slave_name);

	if (!slave_dev)

		return -ENODEV;
@@ -548,8 +539,6 @@ static int eql_s_slave_cfg(struct net_device *dev, slave_config_t __user *scp) 
	}

	spin_unlock_bh(&eql->queue.lock);



	dev_put(slave_dev);



	return ret;

}

drivers/net/vxlan.c

+1 −2
Original line number Diff line number Diff line
@@ -741,10 +741,9 @@ static int vxlan_fdb_parse(struct nlattr *tb[], struct vxlan_dev *vxlan, 
		if (nla_len(tb[NDA_IFINDEX]) != sizeof(u32))

			return -EINVAL;

		*ifindex = nla_get_u32(tb[NDA_IFINDEX]);

		tdev = dev_get_by_index(net, *ifindex);

		tdev = __dev_get_by_index(net, *ifindex);

		if (!tdev)

			return -EADDRNOTAVAIL;

		dev_put(tdev);

	} else {

		*ifindex = 0;

	}

drivers/staging/cxt1e1/linux.c

+7 −8
Original line number Diff line number Diff line
@@ -770,9 +770,9 @@ do_del_chan (struct net_device *musycc_dev, void *data) 
    if (cp.channum > 999)

        return -EINVAL;

    snprintf (buf, sizeof(buf), CHANNAME "%d", cp.channum);

    if (!(dev = dev_get_by_name (&init_net, buf)))

        return -ENOENT;

    dev_put (dev);

	dev = __dev_get_by_name(&init_net, buf);

	if (!dev)

		return -ENODEV;

    ret = do_deluser (dev, 1);

    if (ret)

        return ret;
@@ -792,7 +792,8 @@ do_reset (struct net_device *musycc_dev, void *data) 
        char        buf[sizeof (CHANNAME) + 3];



        sprintf (buf, CHANNAME "%d", i);

        if (!(ndev = dev_get_by_name(&init_net, buf)))

	ndev = __dev_get_by_name(&init_net, buf);

	if (!ndev)

		continue;

        priv = dev_to_hdlc (ndev)->priv;
@@ -800,11 +801,9 @@ do_reset (struct net_device *musycc_dev, void *data) 
            (unsigned long) (netdev_priv(musycc_dev)))

        {

            ndev->flags &= ~IFF_UP;

            dev_put (ndev);

            netif_stop_queue (ndev);

            do_deluser (ndev, 1);

        } else

            dev_put (ndev);

	}

    }

    return 0;

}

net/batman-adv/hard-interface.c

+1 −3
Original line number Diff line number Diff line
@@ -87,15 +87,13 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev) 
		return false;



	/* recurse over the parent device */

	parent_dev = dev_get_by_index(&init_net, net_dev->iflink);

	parent_dev = __dev_get_by_index(&init_net, net_dev->iflink);

	/* if we got a NULL parent_dev there is something broken.. */

	if (WARN(!parent_dev, "Cannot find parent device"))

		return false;



	ret = batadv_is_on_batman_iface(parent_dev);



	if (parent_dev)

		dev_put(parent_dev);

	return ret;

}