netdev - Re: [PATCH net 01/12] ipvlan: add get_link

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Date:   Thu, 1 Oct 2020 10:19:19 +0200
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Sabrina Dubroca <sd@...asysnail.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net 01/12] ipvlan: add get_link_net



On 10/1/20 9:59 AM, Sabrina Dubroca wrote:
> Currently, ipvlan devices don't advertise a link-netnsid. We can get
> it from the lower device, like macvlan does.
> 
> Signed-off-by: Sabrina Dubroca <sd@...asysnail.net>
> ---
>  drivers/net/ipvlan/ipvlan_main.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
> index 5bca94c99006..a81bb68a5713 100644
> --- a/drivers/net/ipvlan/ipvlan_main.c
> +++ b/drivers/net/ipvlan/ipvlan_main.c
> @@ -678,6 +678,14 @@ void ipvlan_link_setup(struct net_device *dev)
>  }
>  EXPORT_SYMBOL_GPL(ipvlan_link_setup);
>  
> +static struct net *ipvlan_get_link_net(const struct net_device *dev)
> +{
> +	struct ipvl_dev *ipvlan = netdev_priv(dev);
> +	struct net_device *phy_dev = ipvlan->phy_dev;
> +
> +	return dev_net(phy_dev);
> +}
> +
>  static const struct nla_policy ipvlan_nl_policy[IFLA_IPVLAN_MAX + 1] =
>  {
>  	[IFLA_IPVLAN_MODE] = { .type = NLA_U16 },
> @@ -691,6 +699,7 @@ static struct rtnl_link_ops ipvlan_link_ops = {
>  	.setup		= ipvlan_link_setup,
>  	.newlink	= ipvlan_link_new,
>  	.dellink	= ipvlan_link_delete,
> +	.get_link_net	= ipvlan_get_link_net,
>  };
>  
>  int ipvlan_link_register(struct rtnl_link_ops *ops)
> 

This conflicts with a patch in net-next...

commit 0bad834ca7bf9999ed9841f2bf9f5f07fbe02136
Author: Taehee Yoo <ap420073@...il.com>
Date:   Fri Aug 21 17:47:32 2020 +0000

    ipvlan: advertise link netns via netlink

I think you should take it as is.