[dpdk-dev] [PATCH v2 1/1] ena: fix SIGFPE with 0 rx queues

[Ferruh Yigit <ferruh.yigit@intel.com>]

From: Daria Kolistratova <daria.kolistratova@intel.com>

When the number of rx queues is 0
(what can be when application does not receive)
failed with SIGFPE. It happens when the application
is also requesting ETH_MQ_RX_RSS_FLAG in the
rte_dev->data->dev_conf.rxmode.mq_mode.
Fixed adding zero rx queues check.

Signed-off-by: Daria Kolistratova <daria.kolistratova@intel.com>
---
 drivers/net/ena/ena_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 9ae73e331..3249b9d92 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1052,7 +1052,7 @@ static int ena_start(struct rte_eth_dev *dev)
 		return rc;
 
 	if (adapter->rte_dev->data->dev_conf.rxmode.mq_mode &
-	    ETH_MQ_RX_RSS_FLAG) {
+	    ETH_MQ_RX_RSS_FLAG && adapter->rte_dev->data->nb_rx_queues > 0) {
 		rc = ena_rss_init_default(adapter);
 		if (rc)
 			return rc;
-- 
2.14.4