linux-kernel - Re: [PATCH][next] mlxsw: spectrum_router: remove redundant initialization of variable force

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Date:   Mon, 29 Mar 2021 09:04:41 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Colin King <colin.king@...onical.com>
Cc:     Jiri Pirko <jiri@...dia.com>, Ido Schimmel <idosch@...dia.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] mlxsw: spectrum_router: remove redundant
 initialization of variable force

On Sat, Mar 27, 2021 at 10:33:34PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> The variable force is being initialized with a value that is
> never read and it is being updated later with a new value. The
> initialization is redundant and can be removed.
> 
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
> index 6ccaa194733b..ff240e3c29f7 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
> @@ -5059,7 +5059,7 @@ mlxsw_sp_nexthop_obj_bucket_adj_update(struct mlxsw_sp *mlxsw_sp,
>  {
>  	u16 bucket_index = info->nh_res_bucket->bucket_index;
>  	struct netlink_ext_ack *extack = info->extack;
> -	bool force = info->nh_res_bucket->force;
> +	bool force;
>  	char ratr_pl_new[MLXSW_REG_RATR_LEN];
>  	char ratr_pl[MLXSW_REG_RATR_LEN];
>  	u32 adj_index;

Reverse Christmas tree.

regards,
dan carpenter