1 /*
2  * aQuantia Corporation Network Driver
3  * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms and conditions of the GNU General Public License,
7  * version 2, as published by the Free Software Foundation.
8  */
9 
10 /* File aq_utils.h: Useful macro and structures used in all layers of driver. */
11 
12 #ifndef AQ_UTILS_H
13 #define AQ_UTILS_H
14 
15 #include "aq_common.h"
16 
17 static inline void aq_utils_obj_set(atomic_t *flags, u32 mask)
18 {
19 	unsigned long flags_old, flags_new;
20 
21 	do {
22 		flags_old = atomic_read(flags);
23 		flags_new = flags_old | (mask);
24 	} while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old);
25 }
26 
27 static inline void aq_utils_obj_clear(atomic_t *flags, u32 mask)
28 {
29 	unsigned long flags_old, flags_new;
30 
31 	do {
32 		flags_old = atomic_read(flags);
33 		flags_new = flags_old & ~(mask);
34 	} while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old);
35 }
36 
37 static inline bool aq_utils_obj_test(atomic_t *flags, u32 mask)
38 {
39 	return atomic_read(flags) & mask;
40 }
41 
42 #endif /* AQ_UTILS_H */
43