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net: switchdev: pass callback to dump operation

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Similar to the notifier_call callback of a notifier_block, change the
function signature of switchdev dump operation to:

    int switchdev_port_obj_dump(struct net_device *dev,
                                enum switchdev_obj_id id, void *obj,
                                int (*cb)(void *obj));

This allows the caller to pass and expect back a specific
switchdev_obj_* structure instead of the generic switchdev_obj one.

Drivers implementation of dump operation can now expect this specific
structure and call the callback with it. Drivers have been changed
accordingly.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot
2015-09-29 12:07:16 -04:00
committed by David S. Miller
parent 03d5fb1862
commit 25f07adc47
4 changed files with 53 additions and 48 deletions
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26
net/dsa/slave.c
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@@ -300,9 +300,9 @@ static int dsa_slave_port_vlan_del(struct net_device *dev,
}
static int dsa_slave_port_vlan_dump(struct net_device *dev,
struct switchdev_obj *obj)
struct switchdev_obj_vlan *vlan,
int (*cb)(void *obj))
{
struct switchdev_obj_vlan *vlan = &obj->u.vlan;
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
DECLARE_BITMAP(members, DSA_MAX_PORTS);
@@ -334,7 +334,7 @@ static int dsa_slave_port_vlan_dump(struct net_device *dev,
if (test_bit(p->port, untagged))
vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
err = obj->cb(obj);
err = cb(vlan);
if (err)
break;
}
@@ -374,7 +374,8 @@ static int dsa_slave_port_fdb_del(struct net_device *dev,
}
static int dsa_slave_port_fdb_dump(struct net_device *dev,
struct switchdev_obj *obj)
struct switchdev_obj_fdb *fdb,
int (*cb)(void *obj))
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
@@ -393,11 +394,11 @@ static int dsa_slave_port_fdb_dump(struct net_device *dev,
if (ret < 0)
break;
obj->u.fdb.addr = addr;
obj->u.fdb.vid = vid;
obj->u.fdb.ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
fdb->addr = addr;
fdb->vid = vid;
fdb->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE;
ret = obj->cb(obj);
ret = cb(fdb);
if (ret < 0)
break;
}
@@ -518,16 +519,17 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
}
static int dsa_slave_port_obj_dump(struct net_device *dev,
struct switchdev_obj *obj)
enum switchdev_obj_id id, void *obj,
int (*cb)(void *obj))
{
int err;
switch (obj->id) {
switch (id) {
case SWITCHDEV_OBJ_PORT_FDB:
err = dsa_slave_port_fdb_dump(dev, obj);
err = dsa_slave_port_fdb_dump(dev, obj, cb);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
err = dsa_slave_port_vlan_dump(dev, obj);
err = dsa_slave_port_vlan_dump(dev, obj, cb);
break;
default:
err = -EOPNOTSUPP;