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

[Ferruh Yigit]

On 6/26/2018 6:38 PM, Ferruh Yigit wrote:
> From: Daria Kolistratova <daria.kolistratova at intel.com>

I re-send the Daria's patch, somehow it didn't appeared in mail list and patchwork.

> 
> 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 at 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;
>