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Subject[044/272] staging: hv: Enable sending GARP packet after live migration
2.6.37-stable review patch.  If anyone has any objections, please let us know.


From: Haiyang Zhang <>

commit 7c161d0b900ea9bd9fc5ea5d3fa9916e9eb0dd88 upstream.

The hv_netvsc gets RNDIS_STATUS_MEDIA_CONNECT event after the VM
is live migrated. Adding call to netif_notify_peers() for this event
to send GARP (Gratuitous ARP) to notify network peers. Otherwise,
the VM's network connection may stop after a live migration.

This patch should also be applied to stable kernel 2.6.32 and later.

Signed-off-by: Haiyang Zhang <>
Signed-off-by: Hank Janssen <>
Signed-off-by: Greg Kroah-Hartman <>

drivers/staging/hv/netvsc_drv.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -233,6 +233,7 @@ static void netvsc_linkstatus_callback(s
if (status == 1) {
+ netif_notify_peers(net);
} else {

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