netdev - Re: [patch net-next 03/16] vlan: add link to upper device

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Date:	Mon, 13 Aug 2012 16:04:21 -0300
From:	Flavio Leitner <fbl@...hat.com>
To:	Jiri Pirko <jiri@...nulli.us>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
	faisal.latif@...el.com, roland@...nel.org, sean.hefty@...el.com,
	hal.rosenstock@...il.com, fubar@...ibm.com, andy@...yhouse.net,
	divy@...lsio.com, jitendra.kalsaria@...gic.com,
	sony.chacko@...gic.com, linux-driver@...gic.com, kaber@...sh.net,
	ursula.braun@...ibm.com, blaschka@...ux.vnet.ibm.com,
	linux390@...ibm.com, shemminger@...tta.com,
	bhutchings@...arflare.com, therbert@...gle.com,
	xiyou.wangcong@...il.com, joe@...ches.com,
	gregory.v.rose@...el.com, john.r.fastabend@...el.com,
	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-s390@...r.kernel.org, bridge@...ts.linux-foundation.org
Subject: Re: [patch net-next 03/16] vlan: add link to upper device

On Mon, 13 Aug 2012 17:27:02 +0200
Jiri Pirko <jiri@...nulli.us> wrote:

> Signed-off-by: Jiri Pirko <jiri@...nulli.us>
> ---
>  net/8021q/vlan.c |   10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
> index 9096bcb..739665e 100644
> --- a/net/8021q/vlan.c
> +++ b/net/8021q/vlan.c
> @@ -105,6 +105,8 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
>  	 */
>  	unregister_netdevice_queue(dev, head);
>  
> +	netdev_upper_dev_unlink(real_dev, dev);
> +
>  	if (grp->nr_vlan_devs == 0)
>  		vlan_gvrp_uninit_applicant(real_dev);
>  
> @@ -162,9 +164,13 @@ int register_vlan_dev(struct net_device *dev)
>  	if (err < 0)
>  		goto out_uninit_applicant;
>  
> +	err = netdev_upper_dev_link(real_dev, dev);
> +	if (err)
> +		goto out_uninit_applicant;
> +
>  	err = register_netdevice(dev);
>  	if (err < 0)
> -		goto out_uninit_applicant;
> +		goto out_upper_dev_unlink;
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
see below:

>  
>  	/* Account for reference in struct vlan_dev_priv */
>  	dev_hold(real_dev);
> @@ -180,6 +186,8 @@ int register_vlan_dev(struct net_device *dev)
>  
>  	return 0;
>  
> +upper_dev_unlink:
^^^^^^^^^^^^^^^^^^^
should be out_upper_dev_unlink:

fbl

> +	netdev_upper_dev_unlink(real_dev, dev);
>  out_uninit_applicant:
>  	if (grp->nr_vlan_devs == 0)
>  		vlan_gvrp_uninit_applicant(real_dev);

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