From 759088bda21f4887c645579418e8b478eb570d78 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Wed, 4 Oct 2017 17:48:49 -0700 Subject: net: bonding: Add extack messages for some enslave failures A number of bond_enslave errors are logged using the netdev_err API. Return those messages to userspace via the extack facility. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index bc92307c2082..172eeeb68152 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1348,12 +1348,14 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, /* already in-use? */ if (netdev_is_rx_handler_busy(slave_dev)) { + NL_SET_ERR_MSG(extack, "Device is in use and cannot be enslaved"); netdev_err(bond_dev, "Error: Device is in use and cannot be enslaved\n"); return -EBUSY; } if (bond_dev == slave_dev) { + NL_SET_ERR_MSG(extack, "Cannot enslave bond to itself."); netdev_err(bond_dev, "cannot enslave bond to itself.\n"); return -EPERM; } @@ -1364,6 +1366,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, netdev_dbg(bond_dev, "%s is NETIF_F_VLAN_CHALLENGED\n", slave_dev->name); if (vlan_uses_dev(bond_dev)) { + NL_SET_ERR_MSG(extack, "Can not enslave VLAN challenged device to VLAN enabled bond"); netdev_err(bond_dev, "Error: cannot enslave VLAN challenged slave %s on VLAN enabled bond %s\n", slave_dev->name, bond_dev->name); return -EPERM; @@ -1383,6 +1386,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, * enslaving it; the old ifenslave will not. */ if (slave_dev->flags & IFF_UP) { + NL_SET_ERR_MSG(extack, "Device can not be enslaved while up"); netdev_err(bond_dev, "%s is up - this may be due to an out of date ifenslave\n", slave_dev->name); return -EPERM; @@ -1423,6 +1427,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, bond_dev); } } else if (bond_dev->type != slave_dev->type) { + NL_SET_ERR_MSG(extack, "Device type is different from other slaves"); netdev_err(bond_dev, "%s ether type (%d) is different from other slaves (%d), can not enslave it\n", slave_dev->name, slave_dev->type, bond_dev->type); return -EINVAL; @@ -1430,6 +1435,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, if (slave_dev->type == ARPHRD_INFINIBAND && BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) { + NL_SET_ERR_MSG(extack, "Only active-backup mode is supported for infiniband slaves"); netdev_warn(bond_dev, "Type (%d) supports only active-backup mode\n", slave_dev->type); res = -EOPNOTSUPP; @@ -1445,6 +1451,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, bond->params.fail_over_mac = BOND_FOM_ACTIVE; netdev_warn(bond_dev, "Setting fail_over_mac to active for active-backup mode\n"); } else { + NL_SET_ERR_MSG(extack, "Slave device does not support setting the MAC address, but fail_over_mac is not set to active"); netdev_err(bond_dev, "The slave device specified does not support setting the MAC address, but fail_over_mac is not set to active\n"); res = -EOPNOTSUPP; goto err_undo_flags; -- cgit v1.2.3-59-g8ed1b