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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2016-09-22 16:49:21 -0400
committerDavid S. Miller <davem@davemloft.net>2016-09-23 08:38:50 -0400
commit4acfee8143b33efa8bda6f03fe1462d545ff8170 (patch)
treeb621cbd0d15c99e8724527eda7ccf25265d14180
parente3978673f514fa4999f04dfad9bbd5bb70d0edc6 (diff)
downloadlinux-4acfee8143b33efa8bda6f03fe1462d545ff8170.tar.bz2
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>
-rw-r--r--net/dsa/slave.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 9ecbe787f102..fd78d4c9b197 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -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,