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hv_netvsc: Use Windows version instead of NVSP version on GPAD teardown 

When changing network interface settings, Windows guests
older than WS2016 can no longer shutdown. This was addressed
by commit 0ef58b0a05 ("hv_netvsc: change GPAD teardown order
on older versions"), however the issue also occurs on WS2012
guests that share NVSP protocol versions with WS2016 guests.
Hence we use Windows version directly to differentiate them.

Fixes: 0ef58b0a05 ("hv_netvsc: change GPAD teardown order on older versions")
Signed-off-by: Mohammed Gamal <mgamal@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mohammed Gamal 2018-04-05 21:09:18 +02:00 committed by David S. Miller
parent 3d92f0b582
commit 2afc5d61a7
1 changed files with 2 additions and 2 deletions
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4
drivers/net/hyperv/netvsc.c
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@ -590,13 +590,13 @@ void netvsc_device_remove(struct hv_device *device)
netdev_dbg(ndev, "net device safe to remove\n");
/* older versions require that buffer be revoked before close */
if (net_device->nvsp_version < NVSP_PROTOCOL_VERSION_4)
if (vmbus_proto_version < VERSION_WIN10)
netvsc_teardown_gpadl(device, net_device);
/* Now, we can close the channel safely */
vmbus_close(device->channel);
if (net_device->nvsp_version >= NVSP_PROTOCOL_VERSION_4)
if (vmbus_proto_version >= VERSION_WIN10)
netvsc_teardown_gpadl(device, net_device);
/* Release all resources */