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hv_netvsc: avoid unnecessary wakeups on subchannel creation 

Only need to wakeup the initiator after all sub-channels
are opened.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2017-09-06 13:53:06 -07:00 committed by David S. Miller
parent 8195b1396e
commit 8f2bb1de73
1 changed files with 2 additions and 2 deletions
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4
drivers/net/hyperv/rndis_filter.c
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@ -1048,8 +1048,8 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
else
netdev_notice(ndev, "sub channel open failed: %d\n", ret);
atomic_inc(&nvscdev->open_chn);
wake_up(&nvscdev->subchan_open);
if (atomic_inc_return(&nvscdev->open_chn) == nvscdev->num_chn)
wake_up(&nvscdev->subchan_open);
}
/* Open sub-channels after completing the handling of the device probe.