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net: The dev->get_stats pointer is not NULL nowadays. 

And so does the pointer is returns, but sysfs and netlinks still 
check for both cases.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2008-05-21 14:12:46 -07:00 committed by David S. Miller
parent 34ac2573e8
commit 96e74088f1
2 changed files with 12 additions and 17 deletions
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9
net/core/net-sysfs.c
View File

@ -242,11 +242,11 @@ static ssize_t netstat_show(const struct device *d,
offset % sizeof(unsigned long) != 0);
read_lock(&dev_base_lock);
if (dev_isalive(dev) && dev->get_stats &&
(stats = (*dev->get_stats)(dev)))
if (dev_isalive(dev)) {
stats = dev->get_stats(dev);
ret = sprintf(buf, fmt_ulong,
*(unsigned long *)(((u8 *) stats) + offset));
}
read_unlock(&dev_base_lock);
return ret;
}
@ -457,8 +457,7 @@ int netdev_register_kobject(struct net_device *net)
strlcpy(dev->bus_id, net->name, BUS_ID_SIZE);
#ifdef CONFIG_SYSFS
if (net->get_stats)
*groups++ = &netstat_group;
*groups++ = &netstat_group;
#ifdef CONFIG_WIRELESS_EXT
if (net->wireless_handlers && net->wireless_handlers->get_wireless_stats)

20
net/core/rtnetlink.c
View File

@ -606,6 +606,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
{
struct ifinfomsg *ifm;
struct nlmsghdr *nlh;
struct net_device_stats *stats;
struct nlattr *attr;
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
if (nlh == NULL)
@ -652,19 +654,13 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
NLA_PUT(skb, IFLA_BROADCAST, dev->addr_len, dev->broadcast);
}
if (dev->get_stats) {
struct net_device_stats *stats = dev->get_stats(dev);
if (stats) {
struct nlattr *attr;
attr = nla_reserve(skb, IFLA_STATS,
sizeof(struct rtnl_link_stats));
if (attr == NULL)
goto nla_put_failure;
attr = nla_reserve(skb, IFLA_STATS,
sizeof(struct rtnl_link_stats));
if (attr == NULL)
goto nla_put_failure;
copy_rtnl_link_stats(nla_data(attr), stats);
}
}
stats = dev->get_stats(dev);
copy_rtnl_link_stats(nla_data(attr), stats);
if (dev->rtnl_link_ops) {
if (rtnl_link_fill(skb, dev) < 0)