diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 9475f3e624a..811507c3980 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4904,6 +4904,18 @@ static int __init net_dev_init(void) if (register_pernet_subsys(&netdev_net_ops)) goto out; + /* The loopback device is special if any other network devices + * is present in a network namespace the loopback device must + * be present. Since we now dynamically allocate and free the + * loopback device ensure this invariant is maintained by + * keeping the loopback device as the first device on the + * list of network devices. Ensuring the loopback devices + * is the first device that appears and the last network device + * that disappears. + */ + if (register_pernet_device(&loopback_net_ops)) + goto out; + if (register_pernet_device(&default_device_ops)) goto out; |