diff options
| author | Patrick Mullaney <pmullaney@novell.com> | 2009-12-03 15:59:22 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-03 15:59:22 -0800 |
| commit | fc4a7489663250360cd40d5adf06a08d1c5d54df (patch) | |
| tree | ce8fed0a2dfc175b03834bb94717f5f2970c9146 /net/core | |
| parent | 012093f6d5d89e6ed6e89c55c383f84b1cff7a78 (diff) | |
| download | linux-next-fc4a7489663250360cd40d5adf06a08d1c5d54df.tar.gz | |
netdevice: provide common routine for macvlan and vlan operstate management
Provide common routine for the transition of operational state for a leaf
device during a root device transition.
Signed-off-by: Patrick Mullaney <pmullaney@novell.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 0913a08a87d6..c36a17aafcf3 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4901,6 +4901,33 @@ unsigned long netdev_fix_features(unsigned long features, const char *name) EXPORT_SYMBOL(netdev_fix_features); /** + * netif_stacked_transfer_operstate - transfer operstate + * @rootdev: the root or lower level device to transfer state from + * @dev: the device to transfer operstate to + * + * Transfer operational state from root to device. This is normally + * called when a stacking relationship exists between the root + * device and the device(a leaf device). + */ +void netif_stacked_transfer_operstate(const struct net_device *rootdev, + struct net_device *dev) +{ + if (rootdev->operstate == IF_OPER_DORMANT) + netif_dormant_on(dev); + else + netif_dormant_off(dev); + + if (netif_carrier_ok(rootdev)) { + if (!netif_carrier_ok(dev)) + netif_carrier_on(dev); + } else { + if (netif_carrier_ok(dev)) + netif_carrier_off(dev); + } +} +EXPORT_SYMBOL(netif_stacked_transfer_operstate); + +/** * register_netdevice - register a network device * @dev: device to register * |