[dpdk-stable] [PATCH] net/mlx5: fix silent error for unsupported flow items

[Yongseok Koh]

Hi, Nelio

This patch has already been included by different title. Can you confirm the
patch in the following link is identical to yours and I can skip it for 17.11.4?

https://git.dpdk.org/dpdk-stable/commit/?h=17.11&id=fa532bac18bc3cf8efc9a9ecac12b5fa0b3e0d78


Thanks,
Yongseok

> On Jul 18, 2018, at 1:37 AM, Nelio Laranjeiro <nelio.laranjeiro at 6wind.com> wrote:
> 
> Not supported items are causing a silent error which does not stops the
> conversion of the flow rule.  This silent error ends in case of a flow
> create by segmentation fault.
> 
> Fixes: 2097d0d1e2cc ("net/mlx5: support basic flow items and actions")
> 
> Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
> 
> ---
> 
> The commit impacts the following stable branches:
> v17.02, v17.05, v17.08, v17.11, v18.02, v18.05
> ---
> drivers/net/mlx5/mlx5_flow.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
> index f48b68945..8ebc0928b 100644
> --- a/drivers/net/mlx5/mlx5_flow.c
> +++ b/drivers/net/mlx5/mlx5_flow.c
> @@ -801,8 +801,10 @@ mlx5_flow_convert_items_validate(const struct rte_flow_item items[],
> 				break;
> 			}
> 		}
> -		if (!token)
> +		if (!token) {
> +			ret = -ENOTSUP;
> 			goto exit_item_not_supported;
> +		}
> 		cur_item = token;
> 		ret = mlx5_flow_item_validate(items,
> 					      (const uint8_t *)cur_item->mask,
> -- 
> 2.18.0
>