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net/netvsc: remove process event optimization

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Remove unlocked check for data in receive ring.
This check is not safe because of missing barriers etc.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Stephen Hemminger 2020-03-31 10:14:01 -07:00 committed by Ferruh Yigit
parent 30408aab2d
commit dfd3f0fce8
1 changed files with 0 additions and 4 deletions
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4
drivers/net/netvsc/hn_rxtx.c
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@ -969,10 +969,6 @@ uint32_t hn_process_events(struct hn_data *hv, uint16_t queue_id,
rxq = queue_id == 0 ? hv->primary : dev->data->rx_queues[queue_id];
/* If no pending data then nothing to do */
if (rte_vmbus_chan_rx_empty(rxq->chan))
return 0;
/*
* Since channel is shared between Rx and TX queue need to have a lock
* since DPDK does not force same CPU to be used for Rx/Tx.