[PATCH net-next v4 14/24] switchdev: add new swdev_port_bridge_dellink

[sfeldma@gmail.com]

From: Scott Feldman <sfeldma@gmail.com>

Same change as setlink.  Provide the wrapper op for SELF ndo_bridge_dellink
and call into the swdev driver to delete afspec VLANs.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
---
 include/net/switchdev.h   |    8 ++++++++
 net/switchdev/switchdev.c |   24 ++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 70874fc..5443c9b 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -123,6 +123,8 @@ int swdev_port_obj_add(struct net_device *dev, struct swdev_obj *obj);
 int swdev_port_obj_del(struct net_device *dev, struct swdev_obj *obj);
 int swdev_port_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
 			      u16 flags);
+int swdev_port_bridge_dellink(struct net_device *dev, struct nlmsghdr *nlh,
+			      u16 flags);
 int register_netdev_switch_notifier(struct notifier_block *nb);
 int unregister_netdev_switch_notifier(struct notifier_block *nb);
 int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
@@ -169,6 +171,12 @@ static inline int swdev_port_bridge_setlink(struct net_device *dev,
 	return -EOPNOTSUPP;
 }
 
+static inline int swdev_port_bridge_dellink(struct net_device *dev,
+					    struct nlmsghdr *nlh, u16 flags)
+{
+	return -EOPNOTSUPP;
+}
+
 static inline int register_netdev_switch_notifier(struct notifier_block *nb)
 {
 	return 0;
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 6691537..febd67e 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -523,6 +523,30 @@ int swdev_port_bridge_setlink(struct net_device *dev,
 EXPORT_SYMBOL_GPL(swdev_port_bridge_setlink);
 
 /**
+ *	swdev_port_bridge_dellink - Set bridge port attributes
+ *
+ *	@dev: port device
+ *	@nlh: netlink header
+ *	@flags: netlink flags
+ *
+ *	Called for SELF on rtnl_bridge_dellink to set bridge port
+ *	attributes.
+ */
+int swdev_port_bridge_dellink(struct net_device *dev,
+			      struct nlmsghdr *nlh, u16 flags)
+{
+	struct nlattr *afspec;
+
+	afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
+				 IFLA_AF_SPEC);
+	if (afspec)
+		return swdev_port_br_afspec(dev, afspec, swdev_port_obj_del);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(swdev_port_bridge_dellink);
+
+/**
  *	netdev_switch_port_bridge_dellink - Notify switch device port of bridge
  *	port attribute delete
  *
-- 
1.7.10.4