netdev - Re: [Patch net-next] vxlan: revert "vxlan: Bypass encapsulation if the destination is local"

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Date:	Fri, 12 Apr 2013 04:05:52 -0400 (EDT)
From:	Cong Wang <amwang@...hat.com>
To:	Sridhar Samudrala <sri@...ibm.com>
Cc:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>
Subject: Re: [Patch net-next] vxlan: revert "vxlan: Bypass encapsulation if
 the destination is local"

----- Original Message -----
> 
> The following patch fixes the issue for me. can you try it out?
> 
> diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
> index 9a64715..d6509de 100644
> --- a/drivers/net/vxlan.c
> +++ b/drivers/net/vxlan.c
> @@ -1013,7 +1013,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb,
> struct net_device *dev,
>  	}
>  
>  	/* Bypass encapsulation if the destination is local */
> -	if (rt->rt_flags & RTCF_LOCAL) {
> +	if (rt->dst.dev->flags & IFF_LOOPBACK) {
>  		struct vxlan_dev *dst_vxlan;
>  
>  		ip_rt_put(rt);
> 

It almost surely can fix the problem, but do you really just want to bypass
encap for loopback devcie? Not all local devices?

The title of your original commit "vxlan: Bypass encapsulation if the destination is local"
is confusing...

(Sorry for the delay, I am on vacation.)
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