summaryrefslogtreecommitdiff
path: root/drivers/net/veth.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/veth.c')
-rw-r--r--drivers/net/veth.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index b4a10bcb66a0..8ad596573d17 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -248,6 +248,21 @@ static void veth_dev_free(struct net_device *dev)
free_netdev(dev);
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void veth_poll_controller(struct net_device *dev)
+{
+ /* veth only receives frames when its peer sends one
+ * Since it's a synchronous operation, we are guaranteed
+ * never to have pending data when we poll for it so
+ * there is nothing to do here.
+ *
+ * We need this though so netpoll recognizes us as an interface that
+ * supports polling, which enables bridge devices in virt setups to
+ * still use netconsole
+ */
+}
+#endif /* CONFIG_NET_POLL_CONTROLLER */
+
static const struct net_device_ops veth_netdev_ops = {
.ndo_init = veth_dev_init,
.ndo_open = veth_open,
@@ -257,6 +272,9 @@ static const struct net_device_ops veth_netdev_ops = {
.ndo_get_stats64 = veth_get_stats64,
.ndo_set_rx_mode = veth_set_multicast_list,
.ndo_set_mac_address = eth_mac_addr,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = veth_poll_controller,
+#endif
};
#define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
@@ -317,6 +335,7 @@ static int veth_newlink(struct net *src_net, struct net_device *dev,
struct veth_priv *priv;
char ifname[IFNAMSIZ];
struct nlattr *peer_tb[IFLA_MAX + 1], **tbp;
+ unsigned char name_assign_type;
struct ifinfomsg *ifmp;
struct net *net;
@@ -344,16 +363,20 @@ static int veth_newlink(struct net *src_net, struct net_device *dev,
tbp = tb;
}
- if (tbp[IFLA_IFNAME])
+ if (tbp[IFLA_IFNAME]) {
nla_strlcpy(ifname, tbp[IFLA_IFNAME], IFNAMSIZ);
- else
+ name_assign_type = NET_NAME_USER;
+ } else {
snprintf(ifname, IFNAMSIZ, DRV_NAME "%%d");
+ name_assign_type = NET_NAME_ENUM;
+ }
net = rtnl_link_get_net(src_net, tbp);
if (IS_ERR(net))
return PTR_ERR(net);
- peer = rtnl_create_link(net, ifname, &veth_link_ops, tbp);
+ peer = rtnl_create_link(net, ifname, name_assign_type,
+ &veth_link_ops, tbp);
if (IS_ERR(peer)) {
put_net(net);
return PTR_ERR(peer);