xen-netback: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enabling
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 2625740..330ddb6 100644 (file)
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -655,7 +655,7 @@ static void frontend_changed(struct xenbus_device *dev,
                set_backend_state(be, XenbusStateClosed);
                if (xenbus_dev_is_online(dev))
                        break;
-               /* fall through if not online */
+               /* fall through - if not online */
        case XenbusStateUnknown:
                set_backend_state(be, XenbusStateClosed);
                device_unregister(&dev->dev);