diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index c10bae7823e05498d913bd473eea93537253f6f6..b5871dfff1b7f85300e8a0cbcd56ffcc9153fbfd 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -962,9 +962,8 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) goto out; } - atomic_inc(&tx_scrq->used); - - if (atomic_read(&tx_scrq->used) >= adapter->req_tx_entries_per_subcrq) { + if (atomic_inc_return(&tx_scrq->used) + >= adapter->req_tx_entries_per_subcrq) { netdev_info(netdev, "Stopping queue %d\n", queue_num); netif_stop_subqueue(netdev, queue_num); } @@ -1499,9 +1498,8 @@ static int ibmvnic_complete_tx(struct ibmvnic_adapter *adapter, } if (txbuff->last_frag) { - atomic_dec(&scrq->used); - - if (atomic_read(&scrq->used) <= + if (atomic_sub_return(next->tx_comp.num_comps, + &scrq->used) <= (adapter->req_tx_entries_per_subcrq / 2) && netif_subqueue_stopped(adapter->netdev, txbuff->skb)) {