netdev - Re: [RFC v1 3/3] vxlan: handle underlay VRF changes

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Message-ID: <340a2a1e-947a-eae9-fce5-4e1463ec290f@cumulusnetworks.com>
Date:   Wed, 14 Nov 2018 12:04:50 -0800
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Alexis Bauvin <abauvin@...leway.com>, roopa@...ulusnetworks.com,
        nicolas.dichtel@...nd.com
Cc:     netdev@...r.kernel.org, akherbouche@...leway.com
Subject: Re: [RFC v1 3/3] vxlan: handle underlay VRF changes

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