netdev - Re: [PATCH] rtnetlink: Handle IFLA_MASTER parameter when processing rtnl

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Date:   Mon, 30 Jan 2017 22:49:36 -0800
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Theuns Verwoerd <theuns.verwoerd@...iedtelesis.co.nz>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        David Ahern <dsa@...ulusnetworks.com>
Subject: Re: [PATCH] rtnetlink: Handle IFLA_MASTER parameter when processing rtnl_newlink

On Mon, Jan 30, 2017 at 3:23 PM, Theuns Verwoerd
<theuns.verwoerd@...iedtelesis.co.nz> wrote:
> @@ -2653,6 +2653,11 @@ static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh)
>                         if (err < 0)
>                                 goto out_unregister;
>                 }
> +               if (tb[IFLA_MASTER]) {
> +                       err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]));
> +                       if (err)
> +                               goto out_unregister;
> +               }
>  out:
>                 if (link_net)
>                         put_net(link_net);

Not sure if it is too late to call do_set_master() after
dev_change_net_namespace().