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| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2017-02-03 13:20:17 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-06 16:53:28 -0500 |
| commit | 8e92ab3a426e04dc355b196e3b4474f633025a3b (patch) | |
| tree | 015463fe11e09ddeb31ffcf7b2a08550fef29814 /net/dsa | |
| parent | 88e4f0ca4e4e7760e4aad544789c5408219886d5 (diff) | |
| download | linux-8e92ab3a426e04dc355b196e3b4474f633025a3b.tar.gz linux-8e92ab3a426e04dc355b196e3b4474f633025a3b.tar.xz | |
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')
| -rw-r--r-- | net/dsa/slave.c | 44 |
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; } |