1 /*
2 * Copyright (c) 2019 The Linux Foundation. All rights reserved.
3 * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
4 *
5 *
6 * Permission to use, copy, modify, and/or distribute this software for
7 * any purpose with or without fee is hereby granted, provided that the
8 * above copyright notice and this permission notice appear in all
9 * copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
12 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
13 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
14 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
15 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
16 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
17 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
18 * PERFORMANCE OF THIS SOFTWARE.
19 */
20
21 #include "qdf_tracker.h"
22 #include "qdf_tracker_test.h"
23 #include "qdf_trace.h"
24 #include "qdf_types.h"
25
26 #if defined(CONFIG_LEAK_DETECTION) && defined(WLAN_TRACKER_TEST)
27 #define qdf_ut_tracker_bits 4 /* 16 buckets */
28 #define qdf_ut_tracker_item_count 3
29 #define qdf_ut_tracker_declare(name) \
30 qdf_tracker_declare(name, qdf_ut_tracker_bits, "unit-test leak", \
31 "unit-test alloc", "unit-test free")
32
qdf_tracker_test_empty(void)33 static uint32_t qdf_tracker_test_empty(void)
34 {
35 qdf_ut_tracker_declare(tracker);
36 char func[QDF_TRACKER_FUNC_SIZE];
37 uint32_t line;
38
39 /* a new tracker should ... */
40 qdf_tracker_init(&tracker);
41
42 /* ... be empty */
43 qdf_tracker_check_for_leaks(&tracker);
44
45 /* ... not contain an arbitrary pointer */
46 QDF_BUG(!qdf_tracker_lookup(&tracker, &tracker, &func, &line));
47
48 qdf_tracker_deinit(&tracker);
49
50 return 0;
51 }
52
qdf_tracker_test_add_remove(void)53 static uint32_t qdf_tracker_test_add_remove(void)
54 {
55 qdf_ut_tracker_declare(tracker);
56 bool items[qdf_ut_tracker_item_count];
57 QDF_STATUS status;
58 int i;
59
60 qdf_tracker_init(&tracker);
61
62 /* an empty tracker should track items */
63 for (i = 0; i < qdf_ut_tracker_item_count; i++) {
64 status = qdf_tracker_track(&tracker, items + i,
65 __func__, __LINE__);
66 items[i] = QDF_IS_STATUS_SUCCESS(status);
67 }
68
69 /* a non-empty tracker should find previously added items */
70 for (i = 0; i < qdf_ut_tracker_item_count; i++) {
71 char func[QDF_TRACKER_FUNC_SIZE];
72 uint32_t line;
73
74 if (!items[i])
75 continue;
76
77 QDF_BUG(qdf_tracker_lookup(&tracker, items + i, &func, &line));
78 qdf_tracker_untrack(&tracker, items + i, __func__, __LINE__);
79 }
80
81 /* a tracker should be empty after all items are untracked*/
82 qdf_tracker_check_for_leaks(&tracker);
83
84 qdf_tracker_deinit(&tracker);
85
86 return 0;
87 }
88
qdf_tracker_unit_test(void)89 uint32_t qdf_tracker_unit_test(void)
90 {
91 uint32_t errors = 0;
92
93 errors += qdf_tracker_test_empty();
94 errors += qdf_tracker_test_add_remove();
95
96 return errors;
97 }
98 #endif
99