linux-kernel - Re: [PATCH v4 1/2] ip_tunnel: fix ip tunnel lookup in collect

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Message-Id: <20170912.204551.2114618573326791125.davem@davemloft.net>
Date:   Tue, 12 Sep 2017 20:45:51 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     yanhaishuang@...s.chinamobile.com
Cc:     kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        pshelar@...ira.com
Subject: Re: [PATCH v4 1/2] ip_tunnel: fix ip tunnel lookup in collect_md
 mode

From: Haishuang Yan <yanhaishuang@...s.chinamobile.com>
Date: Tue, 12 Sep 2017 17:47:56 +0800

> In collect_md mode, if the tun dev is down, it still can call
> ip_tunnel_rcv to receive on packets, and the rx statistics increase
> improperly.
> 
> When the md tunnel is down, it's not neccessary to increase RX drops
> for the tunnel device, packets would be recieved on fallback tunnel,
> and the RX drops on fallback device will be increased as expected.
> 
> Fixes: 2e15ea390e6f ("ip_gre: Add support to collect tunnel metadata.")
> Cc: Pravin B Shelar <pshelar@...ira.com>
> Signed-off-by: Haishuang Yan <yanhaishuang@...s.chinamobile.com>

Applied.