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Date:	Mon, 28 Jul 2014 16:39:23 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	Dmitry Popov <ixaphire@...tor.net>
Cc:	"David S. Miller" <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Sergey Popov <pinkbyte@...too.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Tom Herbert <therbert@...gle.com>
Subject: Re: [PATCH] ip_tunnel(ipv4): fix tunnels with "local any remote $remote_ip"

On Mon, Jul 28, 2014 at 4:07 PM, Dmitry Popov <ixaphire@...tor.net> wrote:
> --- a/include/net/ip_tunnels.h
> +++ b/include/net/ip_tunnels.h
> @@ -40,6 +40,7 @@ struct ip_tunnel_prl_entry {
>
>  struct ip_tunnel_dst {
>         struct dst_entry __rcu          *dst;
> +       __be32                           saddr;
>  };


It looks odd to save a source address in some struct named dst,
maybe it's the time to rename it.


>         if (dst) {
> -               if (dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
> +               if (!dst->obsolete || dst->ops->check(dst, cookie)) {
> +                       *saddr = idst->saddr;
> +               } else {

I am wondering if this always works, that is, if saddr could be still valid
as long as dst is valid?
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