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Revert "[RTNETLINK]: Send a single notification on device state changes." 

This reverts commit 45b5035482.

It break locking around dev->link_mode as well as cause
other bootup problems.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-02-17 18:35:07 -08:00
parent b57dfbc4f7
commit 93b2d4a208
1 changed files with 10 additions and 26 deletions
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36
net/core/rtnetlink.c
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@ -504,7 +504,7 @@ int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo);
static int set_operstate(struct net_device *dev, unsigned char transition, bool send_notification)
static void set_operstate(struct net_device *dev, unsigned char transition)
{
unsigned char operstate = dev->operstate;
@ -527,12 +527,8 @@ static int set_operstate(struct net_device *dev, unsigned char transition, bool
write_lock_bh(&dev_base_lock);
dev->operstate = operstate;
write_unlock_bh(&dev_base_lock);
if (send_notification)
netdev_state_change(dev);
return 1;
} else
return 0;
netdev_state_change(dev);
}
}
static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
@ -826,7 +822,6 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
if (tb[IFLA_BROADCAST]) {
nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
send_addr_notify = 1;
modified = 1;
}
if (ifm->ifi_flags || ifm->ifi_change) {
@ -839,23 +834,16 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
dev_change_flags(dev, flags);
}
if (tb[IFLA_TXQLEN]) {
if (dev->tx_queue_len != nla_get_u32(tb[IFLA_TXQLEN])) {
dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
modified = 1;
}
}
if (tb[IFLA_TXQLEN])
dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
if (tb[IFLA_OPERSTATE])
modified |= set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), false);
set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
if (tb[IFLA_LINKMODE]) {
if (dev->link_mode != nla_get_u8(tb[IFLA_LINKMODE])) {
write_lock_bh(&dev_base_lock);
dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
write_lock_bh(&dev_base_lock);
modified = 1;
}
write_lock_bh(&dev_base_lock);
dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
write_unlock_bh(&dev_base_lock);
}
err = 0;
@ -869,10 +857,6 @@ errout:
if (send_addr_notify)
call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
if (modified)
netdev_state_change(dev);
return err;
}
@ -990,7 +974,7 @@ struct net_device *rtnl_create_link(struct net *net, char *ifname,
if (tb[IFLA_TXQLEN])
dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
if (tb[IFLA_OPERSTATE])
set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]), true);
set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
if (tb[IFLA_LINKMODE])
dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);