Re: [dpdk-stable] [dpdk-dev] [PATCH v2] net/ice: fix core dumped issue in switch filter

["Zhao1, Wei" <wei.zhao1@intel.com>]

Hi, Junyu

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Junyu Jiang
> Sent: Wednesday, May 6, 2020 11:05 AM
> To: dev@dpdk.org
> Cc: Yang, Qiming <qiming.yang@intel.com>; guinanx.sun@intel.com X
> <junyux.jiang@intel.com>; stable@dpdk.org
> Subject: [dpdk-dev] [PATCH v2] net/ice: fix core dumped issue in switch filter
> 
> The number of queues in queue group should be checked before using it. This
> patch fixed the issue.
> 
> Fixes: 47d460d63233 ("net/ice: rework switch filter")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Junyu Jiang <junyux.jiang@intel.com>
> Tested-by: Qimai Xiao <qimaix.xiao@intel.com>
> ---
>  drivers/net/ice/ice_switch_filter.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/ice/ice_switch_filter.c
> b/drivers/net/ice/ice_switch_filter.c
> index 179430136..c2762e331 100644
> --- a/drivers/net/ice/ice_switch_filter.c
> +++ b/drivers/net/ice/ice_switch_filter.c
> @@ -1296,6 +1296,8 @@ ice_switch_parse_action(struct ice_pf *pf,
>  		switch (action_type) {
>  		case RTE_FLOW_ACTION_TYPE_RSS:
>  			act_qgrop = action->conf;
> +			if (act_qgrop->queue_num <= 1)
> +				goto error;

Why do you ban the case of queue num =1?

>  			rule_info->sw_act.fltr_act =
>  				ICE_FWD_TO_QGRP;
>  			rule_info->sw_act.fwd_id.q_id =
> --
> 2.17.1