[PATCH net-next 5/9] net: dsa: Add setter for SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS

[Florian Fainelli <f.fainelli@gmail.com>]

In preparation for removing SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT,
add support for a function that processes the
SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS and
SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS attributes and returns not
supported for any flag set, since DSA does not currently support
toggling those bridge port attributes (yet).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 net/dsa/dsa_priv.h |  3 +++
 net/dsa/port.c     | 11 +++++++++++
 net/dsa/slave.c    |  7 +++++++
 3 files changed, 21 insertions(+)

diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 1f4972dab9f2..50d73698dfb3 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -150,6 +150,9 @@ int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
 			    struct switchdev_trans *trans);
 int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
 			 struct switchdev_trans *trans);
+int dsa_port_bridge_port_flags_set(struct dsa_port *dp,
+				   unsigned long brport_flags,
+				   struct switchdev_trans *trans, bool pre_set);
 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
 		     u16 vid);
 int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 2d7e01b23572..b0c4cfd18da9 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -177,6 +177,17 @@ int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
 	return dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info);
 }
 
+int dsa_port_bridge_port_flags_set(struct dsa_port *dp,
+				   unsigned long brport_flags,
+				   struct switchdev_trans *trans,
+				   bool pre_set)
+{
+	if (brport_flags)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
 		     u16 vid)
 {
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 2e5e7c04821b..417388c9f1fa 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -282,6 +282,7 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
 				   struct switchdev_trans *trans)
 {
 	struct dsa_port *dp = dsa_slave_to_port(dev);
+	bool pre_set = false;
 	int ret;
 
 	switch (attr->id) {
@@ -295,6 +296,12 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
 	case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
 		ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans);
 		break;
+	case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
+		pre_set = true; /* fall through */
+	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+		ret = dsa_port_bridge_port_flags_set(dp, attr->u.brport_flags,
+						     trans, pre_set);
+		break;
 	default:
 		ret = -EOPNOTSUPP;
 		break;
-- 
2.17.1