Re: [dpdk-stable] [PATCH] net/mlx5: fix validate set meta action for zero value

[Raslan Darawsheh <rasland@mellanox.com>]

Hi,

> -----Original Message-----
> From: Wisam Monther <wisamm@mellanox.com>
> Sent: Thursday, March 12, 2020 11:25 AM
> To: dev@dpdk.org; Raslan Darawsheh <rasland@mellanox.com>; Matan
> Azrad <matan@mellanox.com>
> Cc: Slava Ovsiienko <viacheslavo@mellanox.com>; stable@dpdk.org
> Subject: [PATCH] net/mlx5: fix validate set meta action for zero value
> 
> There is no reason to prevent the user from using zero metadata,
> it indeed means no metadata, but sometimes the user may need to
> report to datapath that there is no metadata anymore, which is
> valid case.
> 
> Fixes: fcc8d2f716fd ("net/mlx5: extend flow metadata support")
> Cc: viacheslavo@mellanox.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Wisam Jaddo <wisamm@mellanox.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
> ---
>  drivers/net/mlx5/mlx5_flow_dv.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> b/drivers/net/mlx5/mlx5_flow_dv.c
> index e7278f0..e2d6690 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -2109,10 +2109,6 @@ flow_dv_validate_action_set_meta(struct
> rte_eth_dev *dev,
>  		return rte_flow_error_set(error, EINVAL,
>  					  RTE_FLOW_ERROR_TYPE_ACTION,
> action,
>  					  "meta data must be within reg C0");
> -	if (!(conf->data & conf->mask))
> -		return rte_flow_error_set(error, EINVAL,
> -					  RTE_FLOW_ERROR_TYPE_ACTION,
> action,
> -					  "zero value has no effect");
>  	return 0;
>  }
> 
> --
> 2.7.4


Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh