1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
4 *
5 * Helper functions to facilitate the instrumentation of auto-generated
6 * RV monitors create by dot2k.
7 *
8 * The dot2k tool is available at tools/verification/dot2/
9 */
10
11#include <linux/ftrace.h>
12
13/*
14 * rv_attach_trace_probe - check and attach a handler function to a tracepoint
15 */
16#define rv_attach_trace_probe(monitor, tp, rv_handler)					\
17	do {										\
18		check_trace_callback_type_##tp(rv_handler);				\
19		WARN_ONCE(register_trace_##tp(rv_handler, NULL),			\
20				"fail attaching " #monitor " " #tp "handler");		\
21	} while (0)
22
23/*
24 * rv_detach_trace_probe - detach a handler function to a tracepoint
25 */
26#define rv_detach_trace_probe(monitor, tp, rv_handler)					\
27	do {										\
28		unregister_trace_##tp(rv_handler, NULL);				\
29	} while (0)
30