switchdev: convert STP update to switchdev attr set
STP update is just a settable port attribute, so convert
switchdev_port_stp_update to an attr set.
For DSA, the prepare phase is skipped and STP updates are only done in the
commit phase. This is because currently the DSA drivers don't need to
allocate any memory for STP updates and the STP update will not fail to HW
(unless something horrible goes wrong on the MDIO bus, in which case the
prepare phase wouldn't have been able to predict anyway).
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 28e3f4b..b9300da 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -39,10 +39,14 @@
void br_set_state(struct net_bridge_port *p, unsigned int state)
{
+ struct switchdev_attr attr = {
+ .id = SWITCHDEV_ATTR_PORT_STP_STATE,
+ .stp_state = state,
+ };
int err;
p->state = state;
- err = switchdev_port_stp_update(p->dev, state);
+ err = switchdev_port_attr_set(p->dev, &attr);
if (err && err != -EOPNOTSUPP)
br_warn(p->br, "error setting offload STP state on port %u(%s)\n",
(unsigned int) p->port_no, p->dev->name);
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index de705b6..3fb5210 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -345,6 +345,24 @@
return ret;
}
+static int dsa_slave_port_attr_set(struct net_device *dev,
+ struct switchdev_attr *attr)
+{
+ int ret = 0;
+
+ switch (attr->id) {
+ case SWITCHDEV_ATTR_PORT_STP_STATE:
+ if (attr->trans == SWITCHDEV_TRANS_COMMIT)
+ ret = dsa_slave_stp_update(dev, attr->stp_state);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
+ return ret;
+}
+
static int dsa_slave_bridge_port_join(struct net_device *dev,
struct net_device *br)
{
@@ -683,7 +701,7 @@
static const struct switchdev_ops dsa_slave_switchdev_ops = {
.switchdev_port_attr_get = dsa_slave_port_attr_get,
- .switchdev_port_stp_update = dsa_slave_stp_update,
+ .switchdev_port_attr_set = dsa_slave_port_attr_set,
};
static void dsa_slave_adjust_link(struct net_device *dev)
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 117fd07..a3c3590 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -187,34 +187,6 @@
}
EXPORT_SYMBOL_GPL(switchdev_port_attr_set);
-/**
- * switchdev_port_stp_update - Notify switch device port of STP
- * state change
- * @dev: port device
- * @state: port STP state
- *
- * Notify switch device port of bridge port STP state change.
- */
-int switchdev_port_stp_update(struct net_device *dev, u8 state)
-{
- const struct switchdev_ops *ops = dev->switchdev_ops;
- struct net_device *lower_dev;
- struct list_head *iter;
- int err = -EOPNOTSUPP;
-
- if (ops && ops->switchdev_port_stp_update)
- return ops->switchdev_port_stp_update(dev, state);
-
- netdev_for_each_lower_dev(dev, lower_dev, iter) {
- err = switchdev_port_stp_update(lower_dev, state);
- if (err && err != -EOPNOTSUPP)
- return err;
- }
-
- return err;
-}
-EXPORT_SYMBOL_GPL(switchdev_port_stp_update);
-
static DEFINE_MUTEX(switchdev_mutex);
static RAW_NOTIFIER_HEAD(switchdev_notif_chain);