net: introduce vlan_vid_[add/del] and use them instead of direct [add/kill]_vid ndo calls
This patch adds wrapper for ndo_vlan_rx_add_vid/ndo_vlan_rx_kill_vid
functions. Check for NETIF_F_HW_VLAN_FILTER feature is done in this
wrapper.
Signed-off-by: Jiri Pirko <jpirko@redhat.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 d72c37f..0c0dacb 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -431,17 +431,13 @@
static int bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid)
{
struct bonding *bond = netdev_priv(bond_dev);
- struct slave *slave;
+ struct slave *slave, *stop_at;
int i, res;
bond_for_each_slave(bond, slave, i) {
- struct net_device *slave_dev = slave->dev;
- const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
-
- if ((slave_dev->features & NETIF_F_HW_VLAN_FILTER) &&
- slave_ops->ndo_vlan_rx_add_vid) {
- slave_ops->ndo_vlan_rx_add_vid(slave_dev, vid);
- }
+ res = vlan_vid_add(slave->dev, vid);
+ if (res)
+ goto unwind;
}
res = bond_add_vlan(bond, vid);
@@ -452,6 +448,14 @@
}
return 0;
+
+unwind:
+ /* unwind from head to the slave that failed */
+ stop_at = slave;
+ bond_for_each_slave_from_to(bond, slave, i, bond->first_slave, stop_at)
+ vlan_vid_del(slave->dev, vid);
+
+ return res;
}
/**
@@ -465,15 +469,8 @@
struct slave *slave;
int i, res;
- bond_for_each_slave(bond, slave, i) {
- struct net_device *slave_dev = slave->dev;
- const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
-
- if ((slave_dev->features & NETIF_F_HW_VLAN_FILTER) &&
- slave_ops->ndo_vlan_rx_kill_vid) {
- slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vid);
- }
- }
+ bond_for_each_slave(bond, slave, i)
+ vlan_vid_del(slave->dev, vid);
res = bond_del_vlan(bond, vid);
if (res) {
@@ -488,30 +485,26 @@
static void bond_add_vlans_on_slave(struct bonding *bond, struct net_device *slave_dev)
{
struct vlan_entry *vlan;
- const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
+ int res;
- if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) ||
- !(slave_ops->ndo_vlan_rx_add_vid))
- return;
-
- list_for_each_entry(vlan, &bond->vlan_list, vlan_list)
- slave_ops->ndo_vlan_rx_add_vid(slave_dev, vlan->vlan_id);
+ list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
+ res = vlan_vid_add(slave_dev, vlan->vlan_id);
+ if (res)
+ pr_warning("%s: Failed to add vlan id %d to device %s\n",
+ bond->dev->name, vlan->vlan_id,
+ slave_dev->name);
+ }
}
static void bond_del_vlans_from_slave(struct bonding *bond,
struct net_device *slave_dev)
{
- const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
struct vlan_entry *vlan;
- if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) ||
- !(slave_ops->ndo_vlan_rx_kill_vid))
- return;
-
list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
if (!vlan->vlan_id)
continue;
- slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vlan->vlan_id);
+ vlan_vid_del(slave_dev, vlan->vlan_id);
}
}
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 2511bc5..f2f820c 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -26,6 +26,7 @@
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/if_arp.h>
+#include <linux/if_vlan.h>
#include <linux/if_link.h>
#include <linux/if_macvlan.h>
#include <net/rtnetlink.h>
@@ -525,11 +526,8 @@
{
struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
- const struct net_device_ops *ops = lowerdev->netdev_ops;
- if (ops->ndo_vlan_rx_add_vid)
- return ops->ndo_vlan_rx_add_vid(lowerdev, vid);
- return 0;
+ return vlan_vid_add(lowerdev, vid);
}
static int macvlan_vlan_rx_kill_vid(struct net_device *dev,
@@ -537,10 +535,8 @@
{
struct macvlan_dev *vlan = netdev_priv(dev);
struct net_device *lowerdev = vlan->lowerdev;
- const struct net_device_ops *ops = lowerdev->netdev_ops;
- if (ops->ndo_vlan_rx_kill_vid)
- return ops->ndo_vlan_rx_kill_vid(lowerdev, vid);
+ vlan_vid_del(lowerdev, vid);
return 0;
}
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 8e8bf95..79c2d1b 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -18,6 +18,7 @@
#include <linux/ctype.h>
#include <linux/notifier.h>
#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
#include <linux/if_arp.h>
#include <linux/socket.h>
#include <linux/etherdevice.h>
@@ -906,17 +907,28 @@
{
struct team *team = netdev_priv(dev);
struct team_port *port;
+ int err;
- rcu_read_lock();
- list_for_each_entry_rcu(port, &team->port_list, list) {
- const struct net_device_ops *ops = port->dev->netdev_ops;
-
- if (ops->ndo_vlan_rx_add_vid)
- ops->ndo_vlan_rx_add_vid(port->dev, vid);
+ /*
+ * Alhough this is reader, it's guarded by team lock. It's not possible
+ * to traverse list in reverse under rcu_read_lock
+ */
+ mutex_lock(&team->lock);
+ list_for_each_entry(port, &team->port_list, list) {
+ err = vlan_vid_add(port->dev, vid);
+ if (err)
+ goto unwind;
}
- rcu_read_unlock();
+ mutex_unlock(&team->lock);
return 0;
+
+unwind:
+ list_for_each_entry_continue_reverse(port, &team->port_list, list)
+ vlan_vid_del(port->dev, vid);
+ mutex_unlock(&team->lock);
+
+ return err;
}
static int team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid)
@@ -925,12 +937,8 @@
struct team_port *port;
rcu_read_lock();
- list_for_each_entry_rcu(port, &team->port_list, list) {
- const struct net_device_ops *ops = port->dev->netdev_ops;
-
- if (ops->ndo_vlan_rx_kill_vid)
- ops->ndo_vlan_rx_kill_vid(port->dev, vid);
- }
+ list_for_each_entry_rcu(port, &team->port_list, list)
+ vlan_vid_del(port->dev, vid);
rcu_read_unlock();
return 0;