[dpdk-dev] [PATCH v4 5/8] net/netvsc: remove process event optimization
From: Stephen Hemminger <stephen@networkplumber.org>
Date: 2020-03-31 17:15:10
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Remove unlocked check for data in receive ring.
This check is not safe because of missing barriers etc.
Fixes: 4e9c73e96e83 ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
drivers/net/netvsc/hn_rxtx.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/net/netvsc/hn_rxtx.c b/drivers/net/netvsc/hn_rxtx.c
index 32c03e3da0c7..e8df84604202 100644
--- a/drivers/net/netvsc/hn_rxtx.c
+++ b/drivers/net/netvsc/hn_rxtx.c@@ -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.
--
2.20.1