1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_JUMP_LABEL_RATELIMIT_H
3#define _LINUX_JUMP_LABEL_RATELIMIT_H
4
5#include <linux/jump_label.h>
6#include <linux/workqueue.h>
7
8#if defined(CONFIG_JUMP_LABEL)
9struct static_key_deferred {
10 struct static_key key;
11 unsigned long timeout;
12 struct delayed_work work;
13};
14
15extern void static_key_slow_dec_deferred(struct static_key_deferred *key);
16extern void static_key_deferred_flush(struct static_key_deferred *key);
17extern void
18jump_label_rate_limit(struct static_key_deferred *key, unsigned long rl);
19
20#else /* !CONFIG_JUMP_LABEL */
21struct static_key_deferred {
22 struct static_key key;
23};
24static inline void static_key_slow_dec_deferred(struct static_key_deferred *key)
25{
26 STATIC_KEY_CHECK_USE(key);
27 static_key_slow_dec(&key->key);
28}
29static inline void static_key_deferred_flush(struct static_key_deferred *key)
30{
31 STATIC_KEY_CHECK_USE(key);
32}
33static inline void
34jump_label_rate_limit(struct static_key_deferred *key,
35 unsigned long rl)
36{
37 STATIC_KEY_CHECK_USE(key);
38}
39#endif /* CONFIG_JUMP_LABEL */
40#endif /* _LINUX_JUMP_LABEL_RATELIMIT_H */
41