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[v4,5/8] net/netvsc: remove process event optimization

Message ID 20200331171404.23596-6-stephen@networkplumber.org (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers show
Series net/netvsc: bug fixes | expand


Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Stephen Hemminger March 31, 2020, 5:14 p.m. UTC
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(-)
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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.