switchdev_notif_chain 376 net/switchdev/switchdev.c static ATOMIC_NOTIFIER_HEAD(switchdev_notif_chain); switchdev_notif_chain 387 net/switchdev/switchdev.c return atomic_notifier_chain_register(&switchdev_notif_chain, nb); switchdev_notif_chain 399 net/switchdev/switchdev.c return atomic_notifier_chain_unregister(&switchdev_notif_chain, nb); switchdev_notif_chain 417 net/switchdev/switchdev.c return atomic_notifier_call_chain(&switchdev_notif_chain, val, info);