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net: gre: remove unused gretap_fb_dev_create

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The only user was vport-gre in openvswitch and now it is gone.

Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Link: https://patch.msgid.link/20260804182049.2289754-6-i.maximets@ovn.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Ilya Maximets 2026-08-04 20:20:39 +02:00 committed by Paolo Abeni
parent e5ba332952
commit 9646825a51
2 changed files with 0 additions and 49 deletions
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2
include/net/gre.h
View File

@ -32,8 +32,6 @@ struct gre_protocol {
int gre_add_protocol(const struct gre_protocol *proto, u8 version);
int gre_del_protocol(const struct gre_protocol *proto, u8 version);
struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
u8 name_assign_type);
int gre_parse_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
bool *csum_err, __be16 proto, int nhs);

47
net/ipv4/ip_gre.c
View File

@ -1716,53 +1716,6 @@ static struct rtnl_link_ops erspan_link_ops __read_mostly = {
.get_link_net = ip_tunnel_get_link_net,
};
struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
u8 name_assign_type)
{
struct rtnl_newlink_params params = { .src_net = net };
struct nlattr *tb[IFLA_MAX + 1];
struct net_device *dev;
LIST_HEAD(list_kill);
struct ip_tunnel *t;
int err;
memset(&tb, 0, sizeof(tb));
params.tb = tb;
dev = rtnl_create_link(net, name, name_assign_type,
&ipgre_tap_ops, tb, NULL);
if (IS_ERR(dev))
return dev;
/* Configure flow based GRE device. */
t = netdev_priv(dev);
t->collect_md = true;
err = ipgre_newlink(dev, &params, NULL);
if (err < 0) {
free_netdev(dev);
return ERR_PTR(err);
}
/* openvswitch users expect packet sizes to be unrestricted,
* so set the largest MTU we can.
*/
err = __ip_tunnel_change_mtu(dev, IP_MAX_MTU, false);
if (err)
goto out;
err = rtnl_configure_link(dev, NULL, 0, NULL);
if (err < 0)
goto out;
return dev;
out:
ip_tunnel_dellink(dev, &list_kill);
unregister_netdevice_many(&list_kill);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(gretap_fb_dev_create);
static int __net_init ipgre_tap_init_net(struct net *net)
{
return ip_tunnel_init_net(net, gre_tap_net_id, &ipgre_tap_ops, "gretap0");