1 /* 2 * Copyright (c) 2019 The Linux Foundation. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for 5 * any purpose with or without fee is hereby granted, provided that the 6 * above copyright notice and this permission notice appear in all 7 * copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include "qdf_delayed_work.h" 20 #include "qdf_status.h" 21 #include "qdf_trace.h" 22 #include "qdf_types.h" 23 24 #ifdef WLAN_DELAYED_WORK_DEBUG 25 #include "qdf_tracker.h" 26 27 #define qdf_dwork_tracker_bits 2 /* 4 buckets */ 28 static qdf_tracker_declare(qdf_dwork_tracker, qdf_dwork_tracker_bits, 29 "delayed work leaks", "delayed work create", 30 "delayed work destroy"); 31 32 void qdf_delayed_work_feature_init(void) 33 { 34 qdf_tracker_init(&qdf_dwork_tracker); 35 } 36 37 void qdf_delayed_work_feature_deinit(void) 38 { 39 qdf_tracker_deinit(&qdf_dwork_tracker); 40 } 41 42 void qdf_delayed_work_check_for_leaks(void) 43 { 44 qdf_tracker_check_for_leaks(&qdf_dwork_tracker); 45 } 46 47 static inline QDF_STATUS qdf_dwork_dbg_track(struct qdf_delayed_work *dwork, 48 const char *func, uint32_t line) 49 { 50 return qdf_tracker_track(&qdf_dwork_tracker, dwork, func, line); 51 } 52 53 static inline void qdf_dwork_dbg_untrack(struct qdf_delayed_work *dwork, 54 const char *func, uint32_t line) 55 { 56 qdf_tracker_untrack(&qdf_dwork_tracker, dwork, func, line); 57 } 58 #else 59 static inline QDF_STATUS qdf_dwork_dbg_track(struct qdf_delayed_work *dwork, 60 const char *func, uint32_t line) 61 { 62 return QDF_STATUS_SUCCESS; 63 } 64 65 static inline void qdf_dwork_dbg_untrack(struct qdf_delayed_work *dwork, 66 const char *func, uint32_t line) 67 { } 68 #endif /* WLAN_DELAYED_WORK_DEBUG */ 69 70 static void __qdf_delayed_work_handler(struct work_struct *work) 71 { 72 struct qdf_delayed_work *dwork = 73 container_of(work, struct qdf_delayed_work, dwork.work); 74 75 dwork->callback(dwork->context); 76 } 77 78 QDF_STATUS __qdf_delayed_work_create(struct qdf_delayed_work *dwork, 79 qdf_delayed_work_cb callback, 80 void *context, 81 const char *func, uint32_t line) 82 { 83 QDF_STATUS status; 84 85 QDF_BUG(dwork); 86 QDF_BUG(callback); 87 if (!dwork || !callback) 88 return QDF_STATUS_E_INVAL; 89 90 status = qdf_dwork_dbg_track(dwork, func, line); 91 if (QDF_IS_STATUS_ERROR(status)) 92 return status; 93 94 INIT_DELAYED_WORK(&dwork->dwork, __qdf_delayed_work_handler); 95 dwork->callback = callback; 96 dwork->context = context; 97 98 return QDF_STATUS_SUCCESS; 99 } 100 101 void __qdf_delayed_work_destroy(struct qdf_delayed_work *dwork, 102 const char *func, uint32_t line) 103 { 104 qdf_delayed_work_stop_sync(dwork); 105 qdf_dwork_dbg_untrack(dwork, func, line); 106 } 107 108 bool qdf_delayed_work_start(struct qdf_delayed_work *dwork, uint32_t msec) 109 { 110 return schedule_delayed_work(&dwork->dwork, msecs_to_jiffies(msec)); 111 } 112 113 bool qdf_delayed_work_stop_sync(struct qdf_delayed_work *dwork) 114 { 115 return cancel_delayed_work_sync(&dwork->dwork); 116 } 117 118