netdev - Re: [PATCH net-next 1/2] bonding: populate essential new

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Date:	Thu, 22 May 2014 10:23:15 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	Veaceslav Falico <vfalico@...il.com>, <netdev@...r.kernel.org>
CC:	Jay Vosburgh <j.vosburgh@...il.com>,
	Andy Gospodarek <andy@...yhouse.net>
Subject: Re: [PATCH net-next 1/2] bonding: populate essential new_slave->bond/dev
 early

On 2014/5/21 23:42, Veaceslav Falico wrote:
> The new bond_free_slave() needs new_slave->bond to verify if additional
> structures were allocated, so populate it early so that, in case of failure
> in bond_enslave(), we would be able to get it.
> 
> Also populate the new_slave->dev field, as it's too one of the most needed
> things to assign early.
> 
> CC: Jay Vosburgh <j.vosburgh@...il.com>
> CC: Andy Gospodarek <andy@...yhouse.net>
> Signed-off-by: Veaceslav Falico <vfalico@...il.com>
> ---
>  drivers/net/bonding/bond_main.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
> index 7123205..923cdd5a 100644
> --- a/drivers/net/bonding/bond_main.c
> +++ b/drivers/net/bonding/bond_main.c
> @@ -1325,6 +1325,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
>  		goto err_undo_flags;
>  	}
>  
> +	new_slave->bond = bond;
> +	new_slave->dev = slave_dev;
>  	/*
>  	 * Set the new_slave's queue_id to be zero.  Queue ID mapping
>  	 * is set via sysfs or module option if desired.
> @@ -1368,8 +1370,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
>  		goto err_restore_mac;
>  	}
>  
> -	new_slave->bond = bond;
> -	new_slave->dev = slave_dev;
>  	slave_dev->priv_flags |= IFF_BONDING;
>  
>  	if (bond_is_lb(bond)) {
> 

Good catch.

Acked-by: Ding Tianhong <dingtianhong@...wei.com>



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