287 void register_undef_hook(struct undef_hook *hook)  in register_undef_hook()  argument
292 	list_add(&hook->node, &undef_hook);  in register_undef_hook()
296 void unregister_undef_hook(struct undef_hook *hook)  in unregister_undef_hook()  argument
301 	list_del(&hook->node);  in unregister_undef_hook()
307 	struct undef_hook *hook;  in call_undef_hook()  local
339 	list_for_each_entry(hook, &undef_hook, node)  in call_undef_hook()
340 		if ((instr & hook->instr_mask) == hook->instr_val &&  in call_undef_hook()
341 			(regs->pstate & hook->pstate_mask) == hook->pstate_val)  in call_undef_hook()
342 			fn = hook->fn;  in call_undef_hook()
534 	struct sys64_hook *hook;  in do_sysinstr()  local
536 	for (hook = sys64_hooks; hook->handler; hook++)  in do_sysinstr()
537 		if ((hook->esr_mask & esr) == hook->esr_val) {  in do_sysinstr()
538 			hook->handler(esr, regs);  in do_sysinstr()