25 static int notifier_chain_register(struct notifier_block **nl,  in notifier_chain_register()  argument
29 	while ((*nl) != NULL) {  in notifier_chain_register()
30 		if (unlikely((*nl) == n)) {  in notifier_chain_register()
35 		if (n->priority > (*nl)->priority)  in notifier_chain_register()
37 		if (n->priority == (*nl)->priority && unique_priority)  in notifier_chain_register()
39 		nl = &((*nl)->next);  in notifier_chain_register()
41 	n->next = *nl;  in notifier_chain_register()
42 	rcu_assign_pointer(*nl, n);  in notifier_chain_register()
47 static int notifier_chain_unregister(struct notifier_block **nl,  in notifier_chain_unregister()  argument
50 	while ((*nl) != NULL) {  in notifier_chain_unregister()
51 		if ((*nl) == n) {  in notifier_chain_unregister()
52 			rcu_assign_pointer(*nl, n->next);  in notifier_chain_unregister()
56 		nl = &((*nl)->next);  in notifier_chain_unregister()
73 static int notifier_call_chain(struct notifier_block **nl,  in notifier_call_chain()  argument
80 	nb = rcu_dereference_raw(*nl);  in notifier_call_chain()
122 static int notifier_call_chain_robust(struct notifier_block **nl,  in notifier_call_chain_robust()  argument
128 	ret = notifier_call_chain(nl, val_up, v, -1, &nr);  in notifier_call_chain_robust()
130 		notifier_call_chain(nl, val_down, v, nr-1, NULL);  in notifier_call_chain_robust()