Commit 96e74088 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller
Browse files

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: default avatarPavel Emelyanov <xemul@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 34ac2573

net/core/net-sysfs.c

+4 −5
Original line number Diff line number Diff line
@@ -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;

}
@@ -457,7 +457,6 @@ 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;



#ifdef CONFIG_WIRELESS_EXT

net/core/rtnetlink.c

+8 −12
Original line number Diff line number Diff line
@@ -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;



	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)