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Subject[PATCH 5.4 009/104] net, ip_tunnel: fix namespaces move
Date
From: William Dauchy <w.dauchy@criteo.com>

[ Upstream commit d0f418516022c32ecceaf4275423e5bd3f8743a9 ]

in the same manner as commit 690afc165bb3 ("net: ip6_gre: fix moving
ip6gre between namespaces"), fix namespace moving as it was broken since
commit 2e15ea390e6f ("ip_gre: Add support to collect tunnel metadata.").
Indeed, the ip6_gre commit removed the local flag for collect_md
condition, so there is no reason to keep it for ip_gre/ip_tunnel.

this patch will fix both ip_tunnel and ip_gre modules.

Fixes: 2e15ea390e6f ("ip_gre: Add support to collect tunnel metadata.")
Signed-off-by: William Dauchy <w.dauchy@criteo.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/ipv4/ip_tunnel.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -1236,10 +1236,8 @@ int ip_tunnel_init(struct net_device *de
iph->version = 4;
iph->ihl = 5;

- if (tunnel->collect_md) {
- dev->features |= NETIF_F_NETNS_LOCAL;
+ if (tunnel->collect_md)
netif_keep_dst(dev);
- }
return 0;
}
EXPORT_SYMBOL_GPL(ip_tunnel_init);

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