When link_net is set, use it as link netns instead of dev_net(). This prepares for rtnetlink core to create device in target netns directly, in which case the two namespaces may be different.
Signed-off-by: Xiao Liang shaw.leon@gmail.com --- net/ipv6/ip6_gre.c | 14 ++++++-------- net/ipv6/ip6_tunnel.c | 9 +++++---- net/ipv6/ip6_vti.c | 6 +++--- net/ipv6/sit.c | 6 +++--- 4 files changed, 17 insertions(+), 18 deletions(-)
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index d9e6b1fd9917..d31a4ce3b19f 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -1969,7 +1969,7 @@ static bool ip6gre_netlink_encap_parms(struct nlattr *data[], return ret; }
-static int ip6gre_newlink_common(struct net *src_net, struct net_device *dev, +static int ip6gre_newlink_common(struct net *link_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { @@ -1990,7 +1990,7 @@ static int ip6gre_newlink_common(struct net *src_net, struct net_device *dev, eth_hw_addr_random(dev);
nt->dev = dev; - nt->net = dev_net(dev); + nt->net = link_net;
err = register_netdevice(dev); if (err) @@ -2007,11 +2007,10 @@ static int ip6gre_newlink(struct net_device *dev, struct rtnl_newlink_params *params, struct netlink_ext_ack *extack) { + struct net *net = params->link_net ? : dev_net(dev); struct ip6_tnl *nt = netdev_priv(dev); struct nlattr **data = params->data; - struct net *src_net = params->net; struct nlattr **tb = params->tb; - struct net *net = dev_net(dev); struct ip6gre_net *ign; int err;
@@ -2026,7 +2025,7 @@ static int ip6gre_newlink(struct net_device *dev, return -EEXIST; }
- err = ip6gre_newlink_common(src_net, dev, tb, data, extack); + err = ip6gre_newlink_common(net, dev, tb, data, extack); if (!err) { ip6gre_tnl_link_config(nt, !tb[IFLA_MTU]); ip6gre_tunnel_link_md(ign, nt); @@ -2246,11 +2245,10 @@ static int ip6erspan_newlink(struct net_device *dev, struct rtnl_newlink_params *params, struct netlink_ext_ack *extack) { + struct net *net = params->link_net ? : dev_net(dev); struct ip6_tnl *nt = netdev_priv(dev); struct nlattr **data = params->data; - struct net *src_net = params->net; struct nlattr **tb = params->tb; - struct net *net = dev_net(dev); struct ip6gre_net *ign; int err;
@@ -2266,7 +2264,7 @@ static int ip6erspan_newlink(struct net_device *dev, return -EEXIST; }
- err = ip6gre_newlink_common(src_net, dev, tb, data, extack); + err = ip6gre_newlink_common(net, dev, tb, data, extack); if (!err) { ip6erspan_tnl_link_config(nt, !tb[IFLA_MTU]); ip6erspan_tunnel_link_md(ign, nt); diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 111a8777c2f7..89d206731af0 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -253,8 +253,7 @@ static void ip6_dev_free(struct net_device *dev) static int ip6_tnl_create2(struct net_device *dev) { struct ip6_tnl *t = netdev_priv(dev); - struct net *net = dev_net(dev); - struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id); + struct ip6_tnl_net *ip6n = net_generic(t->net, ip6_tnl_net_id); int err;
dev->rtnl_link_ops = &ip6_link_ops; @@ -2008,12 +2007,14 @@ static int ip6_tnl_newlink(struct net_device *dev, { struct nlattr **data = params->data; struct nlattr **tb = params->tb; - struct net *net = dev_net(dev); - struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id); struct ip_tunnel_encap ipencap; + struct ip6_tnl_net *ip6n; struct ip6_tnl *nt, *t; + struct net *net; int err;
+ net = params->link_net ? : dev_net(dev); + ip6n = net_generic(net, ip6_tnl_net_id); nt = netdev_priv(dev); nt->net = net;
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c index 16e0d74f99dd..83c055996fbb 100644 --- a/net/ipv6/ip6_vti.c +++ b/net/ipv6/ip6_vti.c @@ -177,8 +177,7 @@ vti6_tnl_unlink(struct vti6_net *ip6n, struct ip6_tnl *t) static int vti6_tnl_create2(struct net_device *dev) { struct ip6_tnl *t = netdev_priv(dev); - struct net *net = dev_net(dev); - struct vti6_net *ip6n = net_generic(net, vti6_net_id); + struct vti6_net *ip6n = net_generic(t->net, vti6_net_id); int err;
dev->rtnl_link_ops = &vti6_link_ops; @@ -1002,9 +1001,10 @@ static int vti6_newlink(struct net_device *dev, struct netlink_ext_ack *extack) { struct nlattr **data = params->data; - struct net *net = dev_net(dev); struct ip6_tnl *nt; + struct net *net;
+ net = params->link_net ? : dev_net(dev); nt = netdev_priv(dev); vti6_netlink_parms(data, &nt->parms);
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 20453671ac50..f7b59bc957d3 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -201,8 +201,7 @@ static void ipip6_tunnel_clone_6rd(struct net_device *dev, struct sit_net *sitn) static int ipip6_tunnel_create(struct net_device *dev) { struct ip_tunnel *t = netdev_priv(dev); - struct net *net = dev_net(dev); - struct sit_net *sitn = net_generic(net, sit_net_id); + struct sit_net *sitn = net_generic(t->net, sit_net_id); int err;
__dev_addr_set(dev, &t->parms.iph.saddr, 4); @@ -1556,14 +1555,15 @@ static int ipip6_newlink(struct net_device *dev, { struct nlattr **data = params->data; struct nlattr **tb = params->tb; - struct net *net = dev_net(dev); struct ip_tunnel *nt; struct ip_tunnel_encap ipencap; #ifdef CONFIG_IPV6_SIT_6RD struct ip_tunnel_6rd ip6rd; #endif + struct net *net; int err;
+ net = params->link_net ? : dev_net(dev); nt = netdev_priv(dev); nt->net = net;