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| author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2011-04-02 22:48:47 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-04-02 22:48:47 -0700 |
| commit | 6cb6a27c45cec9184302c2e350b3593c64bc7f6c (patch) | |
| tree | 1338b3838588ce4c28b71c4e611db51eea53e89b /net/core/dev.c | |
| parent | e9403c8437cf3721e7901c1a8fcb06bb642a7e55 (diff) | |
| download | linux-6cb6a27c45cec9184302c2e350b3593c64bc7f6c.tar.bz2 | |
net: Call netdev_features_change() from netdev_update_features()
Issue FEAT_CHANGE notification when features are changed by
netdev_update_features(). This will allow changes made by extra constraints
on e.g. MTU change to be properly propagated like changes via ethtool.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 3da9fb06d47a..02f56376fe99 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5236,7 +5236,7 @@ u32 netdev_fix_features(struct net_device *dev, u32 features) } EXPORT_SYMBOL(netdev_fix_features); -void netdev_update_features(struct net_device *dev) +int __netdev_update_features(struct net_device *dev) { u32 features; int err = 0; @@ -5250,7 +5250,7 @@ void netdev_update_features(struct net_device *dev) features = netdev_fix_features(dev, features); if (dev->features == features) - return; + return 0; netdev_info(dev, "Features changed: 0x%08x -> 0x%08x\n", dev->features, features); @@ -5258,12 +5258,23 @@ void netdev_update_features(struct net_device *dev) if (dev->netdev_ops->ndo_set_features) err = dev->netdev_ops->ndo_set_features(dev, features); - if (!err) - dev->features = features; - else if (err < 0) + if (unlikely(err < 0)) { netdev_err(dev, "set_features() failed (%d); wanted 0x%08x, left 0x%08x\n", err, features, dev->features); + return -1; + } + + if (!err) + dev->features = features; + + return 1; +} + +void netdev_update_features(struct net_device *dev) +{ + if (__netdev_update_features(dev)) + netdev_features_change(dev); } EXPORT_SYMBOL(netdev_update_features); @@ -5430,7 +5441,7 @@ int register_netdevice(struct net_device *dev) goto err_uninit; dev->reg_state = NETREG_REGISTERED; - netdev_update_features(dev); + __netdev_update_features(dev); /* * Default initial state at registry is that the |