diff options
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 1d9137e77dfc..0ff7567bd04f 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1600,6 +1600,14 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, int link_reporting; int res = 0, i; + if (slave_dev->flags & IFF_MASTER && + !netif_is_bond_master(slave_dev)) { + NL_SET_ERR_MSG(extack, "Device with IFF_MASTER cannot be enslaved"); + netdev_err(bond_dev, + "Error: Device with IFF_MASTER cannot be enslaved\n"); + return -EPERM; + } + if (!bond->params.use_carrier && slave_dev->ethtool_ops->get_link == NULL && slave_ops->ndo_do_ioctl == NULL) { |