net/netvsc: initialize link state

[ upstream commit 047ad37 ]

If application is using link state interrupt, the correct link state
needs to be filled in when device is started. This is similar to
how virtio updates link information.

Fixes: 4e9c73e ("net/netvsc: add Hyper-V network device")

Reported-by: Mohammed Gamal <mgamal@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Mohammed Gamal <mgamal@redhat.com>

drivers/net/netvsc/hn_ethdev.c

@@ -622,6 +622,10 @@ hn_dev_start(struct rte_eth_dev *dev)
 	if (error)
 		hn_rndis_set_rxfilter(hv, 0);
 
+	/* Initialize Link state */
+	if (error == 0)
+		hn_dev_link_update(dev, 0);
+
 	return error;
 }