xref: /openbmc/linux/include/linux/delayed_call.h (revision b2441318) 
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _DELAYED_CALL_H
3 #define _DELAYED_CALL_H
4 
5 /*
6  * Poor man's closures; I wish we could've done them sanely polymorphic,
7  * but...
8  */
9 
10 struct delayed_call {
11 	void (*fn)(void *);
12 	void *arg;
13 };
14 
15 #define DEFINE_DELAYED_CALL(name) struct delayed_call name = {NULL, NULL}
16 
17 /* I really wish we had closures with sane typechecking... */
set_delayed_call(struct delayed_call * call,void (* fn)(void *),void * arg)18 static inline void set_delayed_call(struct delayed_call *call,
19 		void (*fn)(void *), void *arg)
20 {
21 	call->fn = fn;
22 	call->arg = arg;
23 }
24 
do_delayed_call(struct delayed_call * call)25 static inline void do_delayed_call(struct delayed_call *call)
26 {
27 	if (call->fn)
28 		call->fn(call->arg);
29 }
30 
clear_delayed_call(struct delayed_call * call)31 static inline void clear_delayed_call(struct delayed_call *call)
32 {
33 	call->fn = NULL;
34 }
35 #endif
36