linux-kernel - Re: [PATCH v2 -next] vdpa/mlx5: Use eth_zero

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Date:   Tue, 28 Jun 2022 16:39:55 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Xu Qiang <xuqiang36@...wei.com>
Cc:     jasowang@...hat.com, elic@...dia.com, si-wei.liu@...cle.com,
        parav@...dia.com, virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, rui.xiang@...wei.com
Subject: Re: [PATCH v2 -next] vdpa/mlx5: Use eth_zero_addr() to assign zero
 address

On Tue, Jun 28, 2022 at 12:34:57PM +0000, Xu Qiang wrote:
> Using eth_zero_addr() to assign zero address instead of memset().
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Xu Qiang <xuqiang36@...wei.com>

Acked-by: Michael S. Tsirkin <mst@...hat.com>

> ---
> v2:
> - fix typo in commit log
>  drivers/vdpa/mlx5/net/mlx5_vnet.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> index e85c1d71f4ed..f738c78ef446 100644
> --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
> +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> @@ -1457,8 +1457,8 @@ static int mlx5_vdpa_add_mac_vlan_rules(struct mlx5_vdpa_net *ndev, u8 *mac,
>  
>  	*ucast = rule;
>  
> -	memset(dmac_c, 0, ETH_ALEN);
> -	memset(dmac_v, 0, ETH_ALEN);
> +	eth_zero_addr(dmac_c);
> +	eth_zero_addr(dmac_v);
>  	dmac_c[0] = 1;
>  	dmac_v[0] = 1;
>  	rule = mlx5_add_flow_rules(ndev->rxft, spec, &flow_act, &dest, 1);
> -- 
> 2.17.1