linux-kernel - Re: [PATCH net-next] ibmveth: fix kobj_to

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Message-Id: <276F94E7-2DFB-47EF-91F7-6CDA69A4009F@linux.vnet.ibm.com>
Date:   Wed, 19 May 2021 00:20:22 -0500
From:   Lijun Pan <ljp@...ux.vnet.ibm.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     benh@...nel.crashing.org, paulus@...ba.org,
        Cristobal Forno <cforno12@...ux.ibm.com>,
        David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, dwilder@...ibm.com,
        linuxppc-dev@...ts.ozlabs.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] ibmveth: fix kobj_to_dev.cocci warnings



> On May 18, 2021, at 9:28 PM, YueHaibing <yuehaibing@...wei.com> wrote:
> 
> Use kobj_to_dev() instead of container_of()
> 
> Generated by: scripts/coccinelle/api/kobj_to_dev.cocci
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---

Acked-by: Lijun Pan <lijunp213@...il.com>


> drivers/net/ethernet/ibm/ibmveth.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
> index 7fea9ae60f13..bc67a7ee872b 100644
> --- a/drivers/net/ethernet/ibm/ibmveth.c
> +++ b/drivers/net/ethernet/ibm/ibmveth.c
> @@ -1799,8 +1799,7 @@ static ssize_t veth_pool_store(struct kobject *kobj, struct attribute *attr,
> 	struct ibmveth_buff_pool *pool = container_of(kobj,
> 						      struct ibmveth_buff_pool,
> 						      kobj);
> -	struct net_device *netdev = dev_get_drvdata(
> -	    container_of(kobj->parent, struct device, kobj));
> +	struct net_device *netdev = dev_get_drvdata(kobj_to_dev(kobj->parent));
> 	struct ibmveth_adapter *adapter = netdev_priv(netdev);
> 	long value = simple_strtol(buf, NULL, 10);
> 	long rc;
> -- 
> 2.17.1
>