make it same as the netdev_switch_port_bridge_setlink/dellink api (ie traverse lowerdevs to get to the switch port). removes "WARN_ON(!ops->ndo_switch_parent_id_get)" because direct bridge ports can be stacked netdevices (like bonds and team of switch ports) which may not implement this ndo. v2 to v3: - remove changes to bond and team. Bring back the transparently following lowerdevs like i initially had for setlink/getlink (http://www.spinics.net/lists/netdev/msg313436.html) dave and scott feldman also seem to prefer it be that way and move to non-transparent way of doing things if we see a problem down the lane. v3 to v4: - fix ret initialization v4 to v5: - return err on first failure (scott feldman) v5 to v6: - change variable name (err) and initialize to -EOPNOTSUPP (scott feldman).
Showing the changes to net/switchdev/switchdev.c (1 of 1 file). Show all
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| @@ -47,11 +47,20 @@ EXPORT_SYMBOL_GPL(netdev_switch_parent_id_get); · 46 unmodified lines | |||
| 47 | int netdev_switch_port_stp_update(struct net_device *dev, u8 state) | 47 | int netdev_switch_port_stp_update(struct net_device *dev, u8 state) |
| 48 | { | 48 | { |
| 49 | const struct swdev_ops *ops = dev->swdev_ops; | 49 | const struct swdev_ops *ops = dev->swdev_ops; |
| 50 | struct net_device *lower_dev; | ||
| 51 | struct list_head *iter; | ||
| 52 | int err = -EOPNOTSUPP; | ||
| 50 | 53 | ||
| 51 | if (!ops || !ops->swdev_port_stp_update) | 54 | if (ops && ops->swdev_port_stp_update) |
| 52 | return -EOPNOTSUPP; | 55 | return ops->swdev_port_stp_update(dev, state); |
| 53 | WARN_ON(!ops->swdev_parent_id_get); | 56 | |
| 54 | return ops->swdev_port_stp_update(dev, state); | 57 | netdev_for_each_lower_dev(dev, lower_dev, iter) { |
| 58 | err = netdev_switch_port_stp_update(lower_dev, state); | ||
| 59 | if (err && err != -EOPNOTSUPP) | ||
| 60 | return err; | ||
| 61 | } | ||
| 62 | |||
| 63 | return err; | ||
| 55 | } | 64 | } |
| 56 | EXPORT_SYMBOL_GPL(netdev_switch_port_stp_update); | 65 | EXPORT_SYMBOL_GPL(netdev_switch_port_stp_update); |
| 57 | 66 | ||