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567c5e13be
In order to pass extack together with NETDEV_PRE_UP notifications, it's necessary to route the extack to __dev_open() from diverse (possibly indirect) callers. One prominent API through which the notification is invoked is dev_change_flags(). Therefore extend dev_change_flags() with and extra extack argument and update all users. Most of the calls end up just encoding NULL, but several sites (VLAN, ipvlan, VRF, rtnetlink) do have extack available. Since the function declaration line is changed anyway, name the other function arguments to placate checkpatch. Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/*
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* Copyright (c) 2007-2014 Nicira, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/if.h>
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#include <linux/skbuff.h>
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#include <linux/ip.h>
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#include <linux/if_tunnel.h>
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#include <linux/if_vlan.h>
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#include <linux/in.h>
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#include <linux/in_route.h>
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#include <linux/inetdevice.h>
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#include <linux/jhash.h>
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#include <linux/list.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/workqueue.h>
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#include <linux/rculist.h>
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#include <net/route.h>
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#include <net/xfrm.h>
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#include <net/icmp.h>
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#include <net/ip.h>
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#include <net/ip_tunnels.h>
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#include <net/gre.h>
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#include <net/net_namespace.h>
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#include <net/netns/generic.h>
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#include <net/protocol.h>
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#include "datapath.h"
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#include "vport.h"
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#include "vport-netdev.h"
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static struct vport_ops ovs_gre_vport_ops;
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static struct vport *gre_tnl_create(const struct vport_parms *parms)
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{
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struct net *net = ovs_dp_get_net(parms->dp);
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struct net_device *dev;
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struct vport *vport;
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int err;
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vport = ovs_vport_alloc(0, &ovs_gre_vport_ops, parms);
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if (IS_ERR(vport))
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return vport;
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rtnl_lock();
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dev = gretap_fb_dev_create(net, parms->name, NET_NAME_USER);
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if (IS_ERR(dev)) {
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rtnl_unlock();
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ovs_vport_free(vport);
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return ERR_CAST(dev);
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}
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err = dev_change_flags(dev, dev->flags | IFF_UP, NULL);
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if (err < 0) {
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rtnl_delete_link(dev);
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rtnl_unlock();
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ovs_vport_free(vport);
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return ERR_PTR(err);
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}
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rtnl_unlock();
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return vport;
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}
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static struct vport *gre_create(const struct vport_parms *parms)
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{
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struct vport *vport;
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vport = gre_tnl_create(parms);
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if (IS_ERR(vport))
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return vport;
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return ovs_netdev_link(vport, parms->name);
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}
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static struct vport_ops ovs_gre_vport_ops = {
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.type = OVS_VPORT_TYPE_GRE,
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.create = gre_create,
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.send = dev_queue_xmit,
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.destroy = ovs_netdev_tunnel_destroy,
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};
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static int __init ovs_gre_tnl_init(void)
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{
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return ovs_vport_ops_register(&ovs_gre_vport_ops);
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}
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static void __exit ovs_gre_tnl_exit(void)
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{
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ovs_vport_ops_unregister(&ovs_gre_vport_ops);
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}
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module_init(ovs_gre_tnl_init);
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module_exit(ovs_gre_tnl_exit);
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MODULE_DESCRIPTION("OVS: GRE switching port");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("vport-type-3");
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