net: switchdev: pass callback to dump operation
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>
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 9ef7c56..a2f57fb 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -120,7 +120,8 @@
int (*switchdev_port_obj_del)(struct net_device *dev,
struct switchdev_obj *obj);
int (*switchdev_port_obj_dump)(struct net_device *dev,
- struct switchdev_obj *obj);
+ enum switchdev_obj_id id, void *obj,
+ int (*cb)(void *obj));
};
enum switchdev_notifier_type {
@@ -152,7 +153,8 @@
struct switchdev_attr *attr);
int switchdev_port_obj_add(struct net_device *dev, struct switchdev_obj *obj);
int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj);
-int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj);
+int switchdev_port_obj_dump(struct net_device *dev, enum switchdev_obj_id id,
+ void *obj, int (*cb)(void *obj));
int register_switchdev_notifier(struct notifier_block *nb);
int unregister_switchdev_notifier(struct notifier_block *nb);
int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
@@ -209,7 +211,8 @@
}
static inline int switchdev_port_obj_dump(struct net_device *dev,
- struct switchdev_obj *obj)
+ enum switchdev_obj_id id, void *obj,
+ int (*cb)(void *obj))
{
return -EOPNOTSUPP;
}