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gre: allow live address change

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The GRE tap device supports Ethernet over GRE, but doesn't
care about the source address of the tunnel, therefore it
can be changed without bring device down.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2014-12-27 10:01:42 -08:00 committed by David S. Miller
parent 33f72e6f0c
commit bec94d430f
1 changed files with 1 additions and 0 deletions
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net/ipv4/ip_gre.c
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@ -673,6 +673,7 @@ static bool ipgre_netlink_encap_parms(struct nlattr *data[],
static int gre_tap_init(struct net_device *dev)
{
__gre_tunnel_init(dev);
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
return ip_tunnel_init(dev);
}