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From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sun, 25 Jun 2017 23:56:00 +0200
Subject: net: add netlink_ext_ack argument to rtnl_link_ops.changelink
Patch-mainline: v4.13-rc1
Git-commit: ad744b223c521b1e01752a826774545c3e3acd8e
References: bsc#1046306 FATE#322942 bsc#1056787

Add support for extended error reporting.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/ulp/ipoib/ipoib_netlink.c |    7 ++++---
 drivers/net/bonding/bond_netlink.c           |    7 ++++---
 drivers/net/caif/caif_hsi.c                  |    3 ++-
 drivers/net/can/dev.c                        |    5 +++--
 drivers/net/ipvlan/ipvlan_main.c             |    3 ++-
 drivers/net/macsec.c                         |    3 ++-
 drivers/net/macvlan.c                        |    3 ++-
 drivers/net/vxlan.c                          |    3 ++-
 include/net/rtnetlink.h                      |    3 ++-
 net/8021q/vlan_netlink.c                     |    7 ++++---
 net/bridge/br_netlink.c                      |    5 +++--
 net/caif/chnl_net.c                          |    3 ++-
 net/core/rtnetlink.c                         |    2 +-
 net/ipv4/ip_gre.c                            |    3 ++-
 net/ipv4/ip_vti.c                            |    3 ++-
 net/ipv4/ipip.c                              |    3 ++-
 net/ipv6/ip6_gre.c                           |    3 ++-
 net/ipv6/ip6_tunnel.c                        |    3 ++-
 net/ipv6/ip6_vti.c                           |    3 ++-
 net/ipv6/sit.c                               |    3 ++-
 20 files changed, 47 insertions(+), 28 deletions(-)

--- a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
@@ -64,8 +64,9 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-static int ipoib_changelink(struct net_device *dev,
-			    struct nlattr *tb[], struct nlattr *data[])
+static int ipoib_changelink(struct net_device *dev, struct nlattr *tb[],
+			    struct nlattr *data[],
+			    struct netlink_ext_ack *extack)
 {
 	u16 mode, umcast;
 	int ret = 0;
@@ -134,7 +135,7 @@ static int ipoib_new_child_link(struct n
 			       child_pkey, IPOIB_RTNL_CHILD);
 
 	if (!err && data)
-		err = ipoib_changelink(dev, tb, data);
+		err = ipoib_changelink(dev, tb, data, extack);
 	return err;
 }
 
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -156,8 +156,9 @@ static int bond_slave_changelink(struct
 	return 0;
 }
 
-static int bond_changelink(struct net_device *bond_dev,
-			   struct nlattr *tb[], struct nlattr *data[])
+static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[],
+			   struct nlattr *data[],
+			   struct netlink_ext_ack *extack)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct bond_opt_value newval;
@@ -443,7 +444,7 @@ static int bond_newlink(struct net *src_
 {
 	int err;
 
-	err = bond_changelink(bond_dev, tb, data);
+	err = bond_changelink(bond_dev, tb, data, extack);
 	if (err < 0)
 		return err;
 
--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -1354,7 +1354,8 @@ static void cfhsi_netlink_parms(struct n
 }
 
 static int caif_hsi_changelink(struct net_device *dev, struct nlattr *tb[],
-				struct nlattr *data[])
+			       struct nlattr *data[],
+			       struct netlink_ext_ack *extack)
 {
 	cfhsi_netlink_parms(data, netdev_priv(dev));
 	netdev_state_change(dev);
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -880,8 +880,9 @@ static int can_validate(struct nlattr *t
 	return 0;
 }
 
-static int can_changelink(struct net_device *dev,
-			  struct nlattr *tb[], struct nlattr *data[])
+static int can_changelink(struct net_device *dev, struct nlattr *tb[],
+			  struct nlattr *data[],
+			  struct netlink_ext_ack *extack)
 {
 	struct can_priv *priv = netdev_priv(dev);
 	int err;
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -455,7 +455,8 @@ static const struct ethtool_ops ipvlan_e
 };
 
 static int ipvlan_nl_changelink(struct net_device *dev,
-				struct nlattr *tb[], struct nlattr *data[])
+				struct nlattr *tb[], struct nlattr *data[],
+				struct netlink_ext_ack *extack)
 {
 	struct ipvl_dev *ipvlan = netdev_priv(dev);
 	struct ipvl_port *port = ipvlan_port_get_rtnl(ipvlan->phy_dev);
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -3056,7 +3056,8 @@ static void macsec_changelink_common(str
 }
 
 static int macsec_changelink(struct net_device *dev, struct nlattr *tb[],
-			     struct nlattr *data[])
+			     struct nlattr *data[],
+			     struct netlink_ext_ack *extack)
 {
 	if (!data)
 		return 0;
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -1468,7 +1468,8 @@ void macvlan_dellink(struct net_device *
 EXPORT_SYMBOL_GPL(macvlan_dellink);
 
 static int macvlan_changelink(struct net_device *dev,
-		struct nlattr *tb[], struct nlattr *data[])
+			      struct nlattr *tb[], struct nlattr *data[],
+			      struct netlink_ext_ack *extack)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	enum macvlan_mode mode;
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -3268,7 +3268,8 @@ static int vxlan_newlink(struct net *src
 }
 
 static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[],
-			    struct nlattr *data[])
+			    struct nlattr *data[],
+			    struct netlink_ext_ack *extack)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_rdst *dst = &vxlan->default_dst;
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -72,7 +72,8 @@ struct rtnl_link_ops {
 					   struct netlink_ext_ack *extack);
 	int			(*changelink)(struct net_device *dev,
 					      struct nlattr *tb[],
-					      struct nlattr *data[]);
+					      struct nlattr *data[],
+					      struct netlink_ext_ack *extack);
 	void			(*dellink)(struct net_device *dev,
 					   struct list_head *head);
 
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -87,8 +87,9 @@ static int vlan_validate(struct nlattr *
 	return 0;
 }
 
-static int vlan_changelink(struct net_device *dev,
-			   struct nlattr *tb[], struct nlattr *data[])
+static int vlan_changelink(struct net_device *dev, struct nlattr *tb[],
+			   struct nlattr *data[],
+			   struct netlink_ext_ack *extack)
 {
 	struct ifla_vlan_flags *flags;
 	struct ifla_vlan_qos_mapping *m;
@@ -154,7 +155,7 @@ static int vlan_newlink(struct net *src_
 	else if (dev->mtu > max_mtu)
 		return -EINVAL;
 
-	err = vlan_changelink(dev, tb, data);
+	err = vlan_changelink(dev, tb, data, extack);
 	if (err < 0)
 		return err;
 
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -915,7 +915,8 @@ static const struct nla_policy br_policy
 };
 
 static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
-			 struct nlattr *data[])
+			 struct nlattr *data[],
+			 struct netlink_ext_ack *extack)
 {
 	struct net_bridge *br = netdev_priv(brdev);
 	int err;
@@ -1184,7 +1185,7 @@ static int br_dev_newlink(struct net *sr
 	if (err)
 		return err;
 
-	err = br_changelink(dev, tb, data);
+	err = br_changelink(dev, tb, data, extack);
 	if (err)
 		unregister_netdevice(dev);
 	return err;
--- a/net/caif/chnl_net.c
+++ b/net/caif/chnl_net.c
@@ -485,7 +485,8 @@ static int ipcaif_newlink(struct net *sr
 }
 
 static int ipcaif_changelink(struct net_device *dev, struct nlattr *tb[],
-			     struct nlattr *data[])
+			     struct nlattr *data[],
+			     struct netlink_ext_ack *extack)
 {
 	struct chnl_net *caifdev;
 	ASSERT_RTNL();
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2621,7 +2621,7 @@ replay:
 				    !ops->changelink)
 					return -EOPNOTSUPP;
 
-				err = ops->changelink(dev, tb, data);
+				err = ops->changelink(dev, tb, data, extack);
 				if (err < 0)
 					return err;
 				status |= DO_SETLINK_NOTIFY;
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -980,7 +980,8 @@ static int ipgre_newlink(struct net *src
 }
 
 static int ipgre_changelink(struct net_device *dev, struct nlattr *tb[],
-			    struct nlattr *data[])
+			    struct nlattr *data[],
+			    struct netlink_ext_ack *extack)
 {
 	struct ip_tunnel *t = netdev_priv(dev);
 	struct ip_tunnel_parm p;
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -514,7 +514,8 @@ static int vti_newlink(struct net *src_n
 }
 
 static int vti_changelink(struct net_device *dev, struct nlattr *tb[],
-			  struct nlattr *data[])
+			  struct nlattr *data[],
+			  struct netlink_ext_ack *extack)
 {
 	struct ip_tunnel *t = netdev_priv(dev);
 	__u32 fwmark = t->fwmark;
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -489,7 +489,8 @@ static int ipip_newlink(struct net *src_
 }
 
 static int ipip_changelink(struct net_device *dev, struct nlattr *tb[],
-			   struct nlattr *data[])
+			   struct nlattr *data[],
+			   struct netlink_ext_ack *extack)
 {
 	struct ip_tunnel *t = netdev_priv(dev);
 	struct ip_tunnel_parm p;
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1404,7 +1404,8 @@ out:
 }
 
 static int ip6gre_changelink(struct net_device *dev, struct nlattr *tb[],
-			    struct nlattr *data[])
+			     struct nlattr *data[],
+			     struct netlink_ext_ack *extack)
 {
 	struct ip6_tnl *t, *nt = netdev_priv(dev);
 	struct net *net = nt->net;
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -2006,7 +2006,8 @@ static int ip6_tnl_newlink(struct net *s
 }
 
 static int ip6_tnl_changelink(struct net_device *dev, struct nlattr *tb[],
-			      struct nlattr *data[])
+			      struct nlattr *data[],
+			      struct netlink_ext_ack *extack)
 {
 	struct ip6_tnl *t = netdev_priv(dev);
 	struct __ip6_tnl_parm p;
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -967,7 +967,8 @@ static void vti6_dellink(struct net_devi
 }
 
 static int vti6_changelink(struct net_device *dev, struct nlattr *tb[],
-			   struct nlattr *data[])
+			   struct nlattr *data[],
+			   struct netlink_ext_ack *extack)
 {
 	struct ip6_tnl *t;
 	struct __ip6_tnl_parm p;
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1574,7 +1574,8 @@ static int ipip6_newlink(struct net *src
 }
 
 static int ipip6_changelink(struct net_device *dev, struct nlattr *tb[],
-			  struct nlattr *data[])
+			    struct nlattr *data[],
+			    struct netlink_ext_ack *extack)
 {
 	struct ip_tunnel *t = netdev_priv(dev);
 	struct ip_tunnel_parm p;