net: Enable 64-bit net device statistics on 32-bit architectures
Use struct rtnl_link_stats64 as the statistics structure.
On 32-bit architectures, insert 32 bits of padding after/before each
field of struct net_device_stats to make its layout compatible with
struct rtnl_link_stats64. Add an anonymous union in net_device; move
stats into the union and add struct rtnl_link_stats64 stats64.
Add net_device_ops::ndo_get_stats64, implementations of which will
return a pointer to struct rtnl_link_stats64. Drivers that implement
this operation must not update the structure asynchronously.
Change dev_get_stats() to call ndo_get_stats64 if available, and to
return a pointer to struct rtnl_link_stats64. Change callers of
dev_get_stats() accordingly.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index ac4f94b..a95a41b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3804,20 +3804,21 @@
return 0;
}
-static struct net_device_stats *bond_get_stats(struct net_device *bond_dev)
+static struct rtnl_link_stats64 *bond_get_stats(struct net_device *bond_dev)
{
struct bonding *bond = netdev_priv(bond_dev);
- struct net_device_stats *stats = &bond_dev->stats;
- struct net_device_stats local_stats;
+ struct rtnl_link_stats64 *stats = &bond_dev->stats64;
+ struct rtnl_link_stats64 local_stats;
struct slave *slave;
int i;
- memset(&local_stats, 0, sizeof(struct net_device_stats));
+ memset(&local_stats, 0, sizeof(local_stats));
read_lock_bh(&bond->lock);
bond_for_each_slave(bond, slave, i) {
- const struct net_device_stats *sstats = dev_get_stats(slave->dev);
+ const struct rtnl_link_stats64 *sstats =
+ dev_get_stats(slave->dev);
local_stats.rx_packets += sstats->rx_packets;
local_stats.rx_bytes += sstats->rx_bytes;
@@ -4569,7 +4570,7 @@
.ndo_stop = bond_close,
.ndo_start_xmit = bond_start_xmit,
.ndo_select_queue = bond_select_queue,
- .ndo_get_stats = bond_get_stats,
+ .ndo_get_stats64 = bond_get_stats,
.ndo_do_ioctl = bond_do_ioctl,
.ndo_set_multicast_list = bond_set_multicast_list,
.ndo_change_mtu = bond_change_mtu,