[PATCH 4.19 156/421] Revert "ibmvnic: remove duplicate napi_schedule call in open function"

[Greg Kroah-Hartman]

From: Dany Madden <drt@xxxxxxxxxxxxx>

[ Upstream commit 2ca220f92878470c6ba03f9946e412323093cc94 ]

This reverts commit 7c451f3ef676c805a4b77a743a01a5c21a250a73.

When a vnic interface is taken down and then up, connectivity is not
restored. We bisected it to this commit. Reverting this commit until
we can fully investigate the issue/benefit of the change.

Fixes: 7c451f3ef676 ("ibmvnic: remove duplicate napi_schedule call in open function")
Reported-by: Cristobal Forno <cforno12@xxxxxxxxxxxxx>
Reported-by: Abdul Haleem <abdhalee@xxxxxxxxxx>
Signed-off-by: Dany Madden <drt@xxxxxxxxxxxxx>
Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 9f72cd3b1d24..0eb06750a5d6 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1099,6 +1099,11 @@ static int __ibmvnic_open(struct net_device *netdev)
 
 	netif_tx_start_all_queues(netdev);
 
+	if (prev_state == VNIC_CLOSED) {
+		for (i = 0; i < adapter->req_rx_queues; i++)
+			napi_schedule(&adapter->napi[i]);
+	}
+
 	adapter->state = VNIC_OPEN;
 	return rc;
 }
-- 
2.30.2