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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2017-02-03 13:20:17 -0500
committerDavid S. Miller <davem@davemloft.net>2017-02-06 16:53:28 -0500
commit8e92ab3a426e04dc355b196e3b4474f633025a3b (patch)
tree015463fe11e09ddeb31ffcf7b2a08550fef29814 /net/dsa/slave.c
parent88e4f0ca4e4e7760e4aad544789c5408219886d5 (diff)
net: dsa: simplify netdevice events handling
Simplify the code handling the slave netdevice notifier call by providing a dsa_slave_changeupper helper for NETDEV_CHANGEUPPER, and so on (only this event is supported at the moment.) Return NOTIFY_DONE when we did not care about an event, and NOTIFY_OK when we were concerned but no error occurred, as the API suggests. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/slave.c')
-rw-r--r--net/dsa/slave.c44
1 files changed, 16 insertions, 28 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 949644c1dac2..332eb234dc21 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1491,37 +1491,22 @@ static bool dsa_slave_dev_check(struct net_device *dev)
return dev->netdev_ops == &dsa_slave_netdev_ops;
}
-static int dsa_slave_port_upper_event(struct net_device *dev,
- unsigned long event, void *ptr)
+static int dsa_slave_changeupper(struct net_device *dev,
+ struct netdev_notifier_changeupper_info *info)
{
- struct netdev_notifier_changeupper_info *info = ptr;
- struct net_device *upper = info->upper_dev;
- int err = 0;
+ int err = NOTIFY_DONE;
- switch (event) {
- case NETDEV_CHANGEUPPER:
- if (netif_is_bridge_master(upper)) {
- if (info->linking)
- err = dsa_slave_bridge_port_join(dev, upper);
- else
- dsa_slave_bridge_port_leave(dev, upper);
+ if (netif_is_bridge_master(info->upper_dev)) {
+ if (info->linking) {
+ err = dsa_slave_bridge_port_join(dev, info->upper_dev);
+ err = notifier_from_errno(err);
+ } else {
+ dsa_slave_bridge_port_leave(dev, info->upper_dev);
+ err = NOTIFY_OK;
}
-
- break;
- }
-
- return notifier_from_errno(err);
-}
-
-static int dsa_slave_port_event(struct net_device *dev, unsigned long event,
- void *ptr)
-{
- switch (event) {
- case NETDEV_CHANGEUPPER:
- return dsa_slave_port_upper_event(dev, event, ptr);
}
- return NOTIFY_DONE;
+ return err;
}
static int dsa_slave_netdevice_event(struct notifier_block *nb,
@@ -1529,8 +1514,11 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb,
{
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
- if (dsa_slave_dev_check(dev))
- return dsa_slave_port_event(dev, event, ptr);
+ if (dev->netdev_ops != &dsa_slave_netdev_ops)
+ return NOTIFY_DONE;
+
+ if (event == NETDEV_CHANGEUPPER)
+ return dsa_slave_changeupper(dev, ptr);
return NOTIFY_DONE;
}