1 files changed, 12 insertions, 0 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 9475f3e624a8..811507c39805 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;