netdev - [PATCH net v2 2/4] ip_tunnel: Add fallback tunnels to the hash lists

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Message-ID: <20131001093448.GH7660@secunet.com>
Date:	Tue, 1 Oct 2013 11:34:48 +0200
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	David Miller <davem@...emloft.net>
Cc:	Pravin Shelar <pshelar@...ira.com>, netdev@...r.kernel.org
Subject: [PATCH net v2 2/4] ip_tunnel: Add fallback tunnels to the hash lists

Currently we can not update the tunnel parameters of
the fallback tunnels because we don't find them in the
hash lists. Fix this by adding them on initialization.

Bug was introduced with commit c544193214
("GRE: Refactor GRE tunneling code.")

Cc: Pravin Shelar <pshelar@...ira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
---

v2: Add a reference to the commit that introduced bug to the commit message

 net/ipv4/ip_tunnel.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index dfc6d8a..895a353 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -853,8 +853,10 @@ int ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
 	/* FB netdevice is special: we have one, and only one per netns.
 	 * Allowing to move it to another netns is clearly unsafe.
 	 */
-	if (!IS_ERR(itn->fb_tunnel_dev))
+	if (!IS_ERR(itn->fb_tunnel_dev)) {
 		itn->fb_tunnel_dev->features |= NETIF_F_NETNS_LOCAL;
+		ip_tunnel_add(itn, netdev_priv(itn->fb_tunnel_dev));
+	}
 	rtnl_unlock();
 
 	return PTR_RET(itn->fb_tunnel_dev);
-- 
1.7.9.5

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