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net: dsa: change scope of ageing time setter

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Change the scope of the switchdev bridge ageing time attribute setter
from the DSA slave device to the generic DSA port, so that the future
port-wide API can also be used for other port types, such as CPU and DSA
links.

Also ds->ports is now a contiguous array of dsa_port structures, thus
their addresses cannot be NULL. Remove the useless check in
dsa_fastest_ageing_time.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-05-19 17:00:43 -04:00 committed by David S. Miller
parent c02c4175cb
commit 072bb1903a
1 changed files with 7 additions and 9 deletions
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16
net/dsa/slave.c
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@ -412,21 +412,19 @@ static unsigned int dsa_fastest_ageing_time(struct dsa_switch *ds,
for (i = 0; i < ds->num_ports; ++i) {
struct dsa_port *dp = &ds->ports[i];
if (dp && dp->ageing_time && dp->ageing_time < ageing_time)
if (dp->ageing_time && dp->ageing_time < ageing_time)
ageing_time = dp->ageing_time;
}
return ageing_time;
}
static int dsa_slave_ageing_time(struct net_device *dev,
const struct switchdev_attr *attr,
struct switchdev_trans *trans)
static int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
struct switchdev_trans *trans)
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->dp->ds;
unsigned long ageing_jiffies = clock_t_to_jiffies(attr->u.ageing_time);
unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock);
unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
struct dsa_switch *ds = dp->ds;
if (switchdev_trans_ph_prepare(trans)) {
if (ds->ageing_time_min && ageing_time < ds->ageing_time_min)
@ -437,7 +435,7 @@ static int dsa_slave_ageing_time(struct net_device *dev,
}
/* Keep the fastest ageing time in case of multiple bridges */
p->dp->ageing_time = ageing_time;
dp->ageing_time = ageing_time;
ageing_time = dsa_fastest_ageing_time(ds, ageing_time);
if (ds->ops->set_ageing_time)
@ -463,7 +461,7 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
trans);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
ret = dsa_slave_ageing_time(dev, attr, trans);
ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans);
break;
default:
ret = -EOPNOTSUPP;