From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Ahern <dsa@cumulusnetworks.com>
Subject: Re: [RFC v1 3/3] vxlan: handle underlay VRF changes
Date: Wed, 14 Nov 2018 12:04:50 -0800
Message-ID: <340a2a1e-947a-eae9-fce5-4e1463ec290f@cumulusnetworks.com>
References: <20181114093104.93286-1-abauvin@scaleway.com>
 <20181114093104.93286-4-abauvin@scaleway.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Cc: netdev@vger.kernel.org, akherbouche@scaleway.com
To: Alexis Bauvin <abauvin@scaleway.com>, roopa@cumulusnetworks.com,
        nicolas.dichtel@6wind.com
Return-path: <netdev-owner@vger.kernel.org>
Received: from mail-pl1-f175.google.com ([209.85.214.175]:43049 "EHLO
        mail-pl1-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1725756AbeKOGJa (ORCPT
        <rfc822;netdev@vger.kernel.org>); Thu, 15 Nov 2018 01:09:30 -0500
Received: by mail-pl1-f175.google.com with SMTP id g59-v6so8281328plb.10
        for <netdev@vger.kernel.org>; Wed, 14 Nov 2018 12:04:53 -0800 (PST)
In-Reply-To: <20181114093104.93286-4-abauvin@scaleway.com>
Content-Language: en-US
Sender: netdev-owner@vger.kernel.org
List-ID: <netdev.vger.kernel.org>

On 11/14/18 1:31 AM, Alexis Bauvin wrote:
> diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
> index 7477b5510a04..188c0cdb8838 100644
> --- a/drivers/net/vxlan.c
> +++ b/drivers/net/vxlan.c
> @@ -208,6 +208,18 @@ static inline struct vxlan_rdst *first_remote_rtnl(struct vxlan_fdb *fdb)
>  	return list_first_entry(&fdb->remotes, struct vxlan_rdst, list);
>  }
>  
> +static int vxlan_is_in_l3mdev_chain(struct net_device *chain,
> +				    struct net_device *dev)
> +{
> +	if (!chain)
> +		return 0;
> +
> +	if (chain->ifindex == dev->ifindex)
> +		return 1;
> +	return vxlan_is_in_l3mdev_chain(netdev_master_upper_dev_get(chain),
> +					dev);

l3mdev_master_dev_rcu