net: Add support for CHANGEUPPER notifier error injection

Since CHANGEUPPER can now fail, add support for it in the newly
introduced netdev notifier error injection infrastructure.
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Acked-by: NNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Documentation/fault-injection/notifier-error-inject.txt

@@ -103,6 +103,7 @@ Netdevice notifier events which can be failed are:
  * NETDEV_POST_INIT
  * NETDEV_PRECHANGEMTU
  * NETDEV_PRECHANGEUPPER
+ * NETDEV_CHANGEUPPER
 
 Example: Inject netdevice mtu change error (-22 == -EINVAL)
 

lib/netdev-notifier-error-inject.c

@@ -18,6 +18,7 @@ static struct notifier_err_inject netdev_notifier_err_inject = {
 		{ NOTIFIER_ERR_INJECT_ACTION(NETDEV_POST_INIT) },
 		{ NOTIFIER_ERR_INJECT_ACTION(NETDEV_PRECHANGEMTU) },
 		{ NOTIFIER_ERR_INJECT_ACTION(NETDEV_PRECHANGEUPPER) },
+		{ NOTIFIER_ERR_INJECT_ACTION(NETDEV_CHANGEUPPER) },
 		{}
 	}
 };