1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef WORKQUEUES_H
3 #define WORKQUEUES_H
4
5 #include <stdbool.h>
6
7 #include "barriers.h"
8 #include "bug_on.h"
9 #include "int_typedefs.h"
10
11 #include <linux/types.h>
12
13 /* Stub workqueue implementation. */
14
15 struct work_struct;
16 typedef void (*work_func_t)(struct work_struct *work);
17 void delayed_work_timer_fn(unsigned long __data);
18
19 struct work_struct {
20 /* atomic_long_t data; */
21 unsigned long data;
22
23 struct list_head entry;
24 work_func_t func;
25 #ifdef CONFIG_LOCKDEP
26 struct lockdep_map lockdep_map;
27 #endif
28 };
29
30 struct timer_list {
31 struct hlist_node entry;
32 unsigned long expires;
33 void (*function)(unsigned long);
34 unsigned long data;
35 u32 flags;
36 int slack;
37 };
38
39 struct delayed_work {
40 struct work_struct work;
41 struct timer_list timer;
42
43 /* target workqueue and CPU ->timer uses to queue ->work */
44 struct workqueue_struct *wq;
45 int cpu;
46 };
47
48
schedule_work(struct work_struct * work)49 static inline bool schedule_work(struct work_struct *work)
50 {
51 BUG();
52 return true;
53 }
54
schedule_work_on(int cpu,struct work_struct * work)55 static inline bool schedule_work_on(int cpu, struct work_struct *work)
56 {
57 BUG();
58 return true;
59 }
60
queue_work(struct workqueue_struct * wq,struct work_struct * work)61 static inline bool queue_work(struct workqueue_struct *wq,
62 struct work_struct *work)
63 {
64 BUG();
65 return true;
66 }
67
queue_delayed_work(struct workqueue_struct * wq,struct delayed_work * dwork,unsigned long delay)68 static inline bool queue_delayed_work(struct workqueue_struct *wq,
69 struct delayed_work *dwork,
70 unsigned long delay)
71 {
72 BUG();
73 return true;
74 }
75
76 #define INIT_WORK(w, f) \
77 do { \
78 (w)->data = 0; \
79 (w)->func = (f); \
80 } while (0)
81
82 #define INIT_DELAYED_WORK(w, f) INIT_WORK(&(w)->work, (f))
83
84 #define __WORK_INITIALIZER(n, f) { \
85 .data = 0, \
86 .entry = { &(n).entry, &(n).entry }, \
87 .func = f \
88 }
89
90 /* Don't bother initializing timer. */
91 #define __DELAYED_WORK_INITIALIZER(n, f, tflags) { \
92 .work = __WORK_INITIALIZER((n).work, (f)), \
93 }
94
95 #define DECLARE_WORK(n, f) \
96 struct workqueue_struct n = __WORK_INITIALIZER
97
98 #define DECLARE_DELAYED_WORK(n, f) \
99 struct delayed_work n = __DELAYED_WORK_INITIALIZER(n, f, 0)
100
101 #define system_power_efficient_wq ((struct workqueue_struct *) NULL)
102
103 #endif
104