From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sun, 25 Jun 2017 21:56:03 +0000 (+0200)
Subject: net: add netlink_ext_ack argument to rtnl_link_ops.slave_validate
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d116ffc770d80f241f0d750d355205d83a9eca5a;p=openwrt%2Fstaging%2Fblogic.git

net: add netlink_ext_ack argument to rtnl_link_ops.slave_validate

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>
---

diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index baf99e173dca..abe6b733d473 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -91,7 +91,8 @@ struct rtnl_link_ops {
 	int			slave_maxtype;
 	const struct nla_policy	*slave_policy;
 	int			(*slave_validate)(struct nlattr *tb[],
-						  struct nlattr *data[]);
+						  struct nlattr *data[],
+						  struct netlink_ext_ack *extack);
 	int			(*slave_changelink)(struct net_device *dev,
 						    struct net_device *slave_dev,
 						    struct nlattr *tb[],
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 658a48959fc4..ed51de525a88 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2601,7 +2601,8 @@ replay:
 				slave_data = slave_attr;
 			}
 			if (m_ops->slave_validate) {
-				err = m_ops->slave_validate(tb, slave_data);
+				err = m_ops->slave_validate(tb, slave_data,
+							    extack);
 				if (err < 0)
 					return err;
 			}