usbnet: Set link down initially for drivers that update link state

Some usbnet drivers update link state while others do not due to
hardware limitations.  Add a flag to distinguish those that do, and
set the link down initially for their devices.

This is intended to fix this bug: http://bugs.debian.org/444043

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 378da8c938fe..04f3f289e87c 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1352,9 +1352,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
         // ok, it's ready to go.
         usb_set_intfdata (udev, dev);
 
-        // start as if the link is up
         netif_device_attach (net);
 
+        if (dev->driver_info->flags & FLAG_LINK_INTR)
+                netif_carrier_off(net);
+
         return 0;
 
 out3: