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net: dsa: add port STP state helper 

Add a void helper to set the STP state of a port, checking first if the
required routine is provided by the driver.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Vivien Didelot 2016-09-22 16:49:21 -04:00 committed by David S. Miller
parent e3978673f5
commit 4acfee8143
1 changed files with 10 additions and 7 deletions
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17
net/dsa/slave.c
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@ -69,6 +69,12 @@ static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p)
return !!p->bridge_dev;
}
static void dsa_port_set_stp_state(struct dsa_switch *ds, int port, u8 state)
{
if (ds->ops->port_stp_state_set)
ds->ops->port_stp_state_set(ds, port, state);
}
static int dsa_slave_open(struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
@ -104,8 +110,7 @@ static int dsa_slave_open(struct net_device *dev)
goto clear_promisc;
}
if (ds->ops->port_stp_state_set)
ds->ops->port_stp_state_set(ds, p->port, stp_state);
dsa_port_set_stp_state(ds, p->port, stp_state);
if (p->phy)
phy_start(p->phy);
@ -147,8 +152,7 @@ static int dsa_slave_close(struct net_device *dev)
if (ds->ops->port_disable)
ds->ops->port_disable(ds, p->port, p->phy);
if (ds->ops->port_stp_state_set)
ds->ops->port_stp_state_set(ds, p->port, BR_STATE_DISABLED);
dsa_port_set_stp_state(ds, p->port, BR_STATE_DISABLED);
return 0;
}
@ -354,7 +358,7 @@ static int dsa_slave_stp_state_set(struct net_device *dev,
if (switchdev_trans_ph_prepare(trans))
return ds->ops->port_stp_state_set ? 0 : -EOPNOTSUPP;
ds->ops->port_stp_state_set(ds, p->port, attr->u.stp_state);
dsa_port_set_stp_state(ds, p->port, attr->u.stp_state);
return 0;
}
@ -556,8 +560,7 @@ static void dsa_slave_bridge_port_leave(struct net_device *dev)
/* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer,
* so allow it to be in BR_STATE_FORWARDING to be kept functional
*/
if (ds->ops->port_stp_state_set)
ds->ops->port_stp_state_set(ds, p->port, BR_STATE_FORWARDING);
dsa_port_set_stp_state(ds, p->port, BR_STATE_FORWARDING);
}
static int dsa_slave_port_attr_get(struct net_device *dev,