struct net_device *upper, *lower;
netdev_features_t features;
struct list_head *iter;
- int err = 0;
+ int err = -1;
ASSERT_RTNL();
features = netdev_sync_upper_features(dev, upper, features);
if (dev->features == features)
- return 0;
+ goto sync_lower;
netdev_dbg(dev, "Features changed: %pNF -> %pNF\n",
&dev->features, &features);
return -1;
}
+sync_lower:
/* some features must be disabled on lower devices when disabled
* on an upper device (think: bonding master or bridge)
*/
if (!err)
dev->features = features;
- return 1;
+ return err < 0 ? 0 : 1;
}
/**