drivers/net/wireless/ath/ath11k/peer.c

   1 // SPDX-License-Identifier: BSD-3-Clause-Clear
   2 /*
   3  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
   4  * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
   5  */
   6
   7 #include "core.h"
   8 #include "peer.h"
   9 #include "debug.h"
  10
  11 static struct ath11k_peer *ath11k_peer_find_list_by_id(struct ath11k_base *ab,
  12                                                        int peer_id)
  13 {
  14         struct ath11k_peer *peer;
  15
  16         lockdep_assert_held(&ab->base_lock);
  17
  18         list_for_each_entry(peer, &ab->peers, list) {
  19                 if (peer->peer_id != peer_id)
  20                         continue;
  21
  22                 return peer;
  23         }
  24
  25         return NULL;
  26 }
  27
  28 struct ath11k_peer *ath11k_peer_find(struct ath11k_base *ab, int vdev_id,
  29                                      const u8 *addr)
  30 {
  31         struct ath11k_peer *peer;
  32
  33         lockdep_assert_held(&ab->base_lock);
  34
  35         list_for_each_entry(peer, &ab->peers, list) {
  36                 if (peer->vdev_id != vdev_id)
  37                         continue;
  38                 if (!ether_addr_equal(peer->addr, addr))
  39                         continue;
  40
  41                 return peer;
  42         }
  43
  44         return NULL;
  45 }
  46
  47 struct ath11k_peer *ath11k_peer_find_by_addr(struct ath11k_base *ab,
  48                                              const u8 *addr)
  49 {
  50         struct ath11k_peer *peer;
  51
  52         lockdep_assert_held(&ab->base_lock);
  53
  54         if (!ab->rhead_peer_addr)
  55                 return NULL;
  56
  57         peer = rhashtable_lookup_fast(ab->rhead_peer_addr, addr,
  58                                       ab->rhash_peer_addr_param);
  59
  60         return peer;
  61 }
  62
  63 struct ath11k_peer *ath11k_peer_find_by_id(struct ath11k_base *ab,
  64                                            int peer_id)
  65 {
  66         struct ath11k_peer *peer;
  67
  68         lockdep_assert_held(&ab->base_lock);
  69
  70         if (!ab->rhead_peer_id)
  71                 return NULL;
  72
  73         peer = rhashtable_lookup_fast(ab->rhead_peer_id, &peer_id,
  74                                       ab->rhash_peer_id_param);
  75
  76         return peer;
  77 }
  78
  79 struct ath11k_peer *ath11k_peer_find_by_vdev_id(struct ath11k_base *ab,
  80                                                 int vdev_id)
  81 {
  82         struct ath11k_peer *peer;
  83
  84         spin_lock_bh(&ab->base_lock);
  85
  86         list_for_each_entry(peer, &ab->peers, list) {
  87                 if (vdev_id == peer->vdev_id) {
  88                         spin_unlock_bh(&ab->base_lock);
  89                         return peer;
  90                 }
  91         }
  92         spin_unlock_bh(&ab->base_lock);
  93         return NULL;
  94 }
  95
  96 void ath11k_peer_unmap_event(struct ath11k_base *ab, u16 peer_id)
  97 {
  98         struct ath11k_peer *peer;
  99
 100         spin_lock_bh(&ab->base_lock);
 101
 102         peer = ath11k_peer_find_list_by_id(ab, peer_id);
 103         if (!peer) {
 104                 ath11k_warn(ab, "peer-unmap-event: unknown peer id %d\n",
 105                             peer_id);
 106                 goto exit;
 107         }
 108
 109         ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "peer unmap vdev %d peer %pM id %d\n",
 110                    peer->vdev_id, peer->addr, peer_id);
 111
 112         list_del(&peer->list);
 113         kfree(peer);
 114         wake_up(&ab->peer_mapping_wq);
 115
 116 exit:
 117         spin_unlock_bh(&ab->base_lock);
 118 }
 119
 120 void ath11k_peer_map_event(struct ath11k_base *ab, u8 vdev_id, u16 peer_id,
 121                            u8 *mac_addr, u16 ast_hash, u16 hw_peer_id)
 122 {
 123         struct ath11k_peer *peer;
 124
 125         spin_lock_bh(&ab->base_lock);
 126         peer = ath11k_peer_find(ab, vdev_id, mac_addr);
 127         if (!peer) {
 128                 peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
 129                 if (!peer)
 130                         goto exit;
 131
 132                 peer->vdev_id = vdev_id;
 133                 peer->peer_id = peer_id;
 134                 peer->ast_hash = ast_hash;
 135                 peer->hw_peer_id = hw_peer_id;
 136                 ether_addr_copy(peer->addr, mac_addr);
 137                 list_add(&peer->list, &ab->peers);
 138                 wake_up(&ab->peer_mapping_wq);
 139         }
 140
 141         ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "peer map vdev %d peer %pM id %d\n",
 142                    vdev_id, mac_addr, peer_id);
 143
 144 exit:
 145         spin_unlock_bh(&ab->base_lock);
 146 }
 147
 148 static int ath11k_wait_for_peer_common(struct ath11k_base *ab, int vdev_id,
 149                                        const u8 *addr, bool expect_mapped)
 150 {
 151         int ret;
 152
 153         ret = wait_event_timeout(ab->peer_mapping_wq, ({
 154                                 bool mapped;
 155
 156                                 spin_lock_bh(&ab->base_lock);
 157                                 mapped = !!ath11k_peer_find(ab, vdev_id, addr);
 158                                 spin_unlock_bh(&ab->base_lock);
 159
 160                                 (mapped == expect_mapped ||
 161                                  test_bit(ATH11K_FLAG_CRASH_FLUSH, &ab->dev_flags));
 162                                 }), 3 * HZ);
 163
 164         if (ret <= 0)
 165                 return -ETIMEDOUT;
 166
 167         return 0;
 168 }
 169
 170 static inline int ath11k_peer_rhash_insert(struct ath11k_base *ab,
 171                                            struct rhashtable *rtbl,
 172                                            struct rhash_head *rhead,
 173                                            struct rhashtable_params *params,
 174                                            void *key)
 175 {
 176         struct ath11k_peer *tmp;
 177
 178         lockdep_assert_held(&ab->tbl_mtx_lock);
 179
 180         tmp = rhashtable_lookup_get_insert_fast(rtbl, rhead, *params);
 181
 182         if (!tmp)
 183                 return 0;
 184         else if (IS_ERR(tmp))
 185                 return PTR_ERR(tmp);
 186         else
 187                 return -EEXIST;
 188 }
 189
 190 static inline int ath11k_peer_rhash_remove(struct ath11k_base *ab,
 191                                            struct rhashtable *rtbl,
 192                                            struct rhash_head *rhead,
 193                                            struct rhashtable_params *params)
 194 {
 195         int ret;
 196
 197         lockdep_assert_held(&ab->tbl_mtx_lock);
 198
 199         ret = rhashtable_remove_fast(rtbl, rhead, *params);
 200         if (ret && ret != -ENOENT)
 201                 return ret;
 202
 203         return 0;
 204 }
 205
 206 static int ath11k_peer_rhash_add(struct ath11k_base *ab, struct ath11k_peer *peer)
 207 {
 208         int ret;
 209
 210         lockdep_assert_held(&ab->base_lock);
 211         lockdep_assert_held(&ab->tbl_mtx_lock);
 212
 213         if (!ab->rhead_peer_id || !ab->rhead_peer_addr)
 214                 return -EPERM;
 215
 216         ret = ath11k_peer_rhash_insert(ab, ab->rhead_peer_id, &peer->rhash_id,
 217                                        &ab->rhash_peer_id_param, &peer->peer_id);
 218         if (ret) {
 219                 ath11k_warn(ab, "failed to add peer %pM with id %d in rhash_id ret %d\n",
 220                             peer->addr, peer->peer_id, ret);
 221                 return ret;
 222         }
 223
 224         ret = ath11k_peer_rhash_insert(ab, ab->rhead_peer_addr, &peer->rhash_addr,
 225                                        &ab->rhash_peer_addr_param, &peer->addr);
 226         if (ret) {
 227                 ath11k_warn(ab, "failed to add peer %pM with id %d in rhash_addr ret %d\n",
 228                             peer->addr, peer->peer_id, ret);
 229                 goto err_clean;
 230         }
 231
 232         return 0;
 233
 234 err_clean:
 235         ath11k_peer_rhash_remove(ab, ab->rhead_peer_id, &peer->rhash_id,
 236                                  &ab->rhash_peer_id_param);
 237         return ret;
 238 }
 239
 240 void ath11k_peer_cleanup(struct ath11k *ar, u32 vdev_id)
 241 {
 242         struct ath11k_peer *peer, *tmp;
 243         struct ath11k_base *ab = ar->ab;
 244
 245         lockdep_assert_held(&ar->conf_mutex);
 246
 247         mutex_lock(&ab->tbl_mtx_lock);
 248         spin_lock_bh(&ab->base_lock);
 249         list_for_each_entry_safe(peer, tmp, &ab->peers, list) {
 250                 if (peer->vdev_id != vdev_id)
 251                         continue;
 252
 253                 ath11k_warn(ab, "removing stale peer %pM from vdev_id %d\n",
 254                             peer->addr, vdev_id);
 255
 256                 ath11k_peer_rhash_delete(ab, peer);
 257                 list_del(&peer->list);
 258                 kfree(peer);
 259                 ar->num_peers--;
 260         }
 261
 262         spin_unlock_bh(&ab->base_lock);
 263         mutex_unlock(&ab->tbl_mtx_lock);
 264 }
 265
 266 static int ath11k_wait_for_peer_deleted(struct ath11k *ar, int vdev_id, const u8 *addr)
 267 {
 268         return ath11k_wait_for_peer_common(ar->ab, vdev_id, addr, false);
 269 }
 270
 271 int ath11k_wait_for_peer_delete_done(struct ath11k *ar, u32 vdev_id,
 272                                      const u8 *addr)
 273 {
 274         int ret;
 275         unsigned long time_left;
 276
 277         ret = ath11k_wait_for_peer_deleted(ar, vdev_id, addr);
 278         if (ret) {
 279                 ath11k_warn(ar->ab, "failed wait for peer deleted");
 280                 return ret;
 281         }
 282
 283         time_left = wait_for_completion_timeout(&ar->peer_delete_done,
 284                                                 3 * HZ);
 285         if (time_left == 0) {
 286                 ath11k_warn(ar->ab, "Timeout in receiving peer delete response\n");
 287                 return -ETIMEDOUT;
 288         }
 289
 290         return 0;
 291 }
 292
 293 static int __ath11k_peer_delete(struct ath11k *ar, u32 vdev_id, const u8 *addr)
 294 {
 295         int ret;
 296         struct ath11k_peer *peer;
 297         struct ath11k_base *ab = ar->ab;
 298
 299         lockdep_assert_held(&ar->conf_mutex);
 300
 301         mutex_lock(&ab->tbl_mtx_lock);
 302         spin_lock_bh(&ab->base_lock);
 303
 304         peer = ath11k_peer_find_by_addr(ab, addr);
 305         /* Check if the found peer is what we want to remove.
 306          * While the sta is transitioning to another band we may
 307          * have 2 peer with the same addr assigned to different
 308          * vdev_id. Make sure we are deleting the correct peer.
 309          */
 310         if (peer && peer->vdev_id == vdev_id)
 311                 ath11k_peer_rhash_delete(ab, peer);
 312
 313         /* Fallback to peer list search if the correct peer can't be found.
 314          * Skip the deletion of the peer from the rhash since it has already
 315          * been deleted in peer add.
 316          */
 317         if (!peer)
 318                 peer = ath11k_peer_find(ab, vdev_id, addr);
 319
 320         if (!peer) {
 321                 spin_unlock_bh(&ab->base_lock);
 322                 mutex_unlock(&ab->tbl_mtx_lock);
 323
 324                 ath11k_warn(ab,
 325                             "failed to find peer vdev_id %d addr %pM in delete\n",
 326                             vdev_id, addr);
 327                 return -EINVAL;
 328         }
 329
 330         spin_unlock_bh(&ab->base_lock);
 331         mutex_unlock(&ab->tbl_mtx_lock);
 332
 333         reinit_completion(&ar->peer_delete_done);
 334
 335         ret = ath11k_wmi_send_peer_delete_cmd(ar, addr, vdev_id);
 336         if (ret) {
 337                 ath11k_warn(ab,
 338                             "failed to delete peer vdev_id %d addr %pM ret %d\n",
 339                             vdev_id, addr, ret);
 340                 return ret;
 341         }
 342
 343         ret = ath11k_wait_for_peer_delete_done(ar, vdev_id, addr);
 344         if (ret)
 345                 return ret;
 346
 347         return 0;
 348 }
 349
 350 int ath11k_peer_delete(struct ath11k *ar, u32 vdev_id, u8 *addr)
 351 {
 352         int ret;
 353
 354         lockdep_assert_held(&ar->conf_mutex);
 355
 356         ret = __ath11k_peer_delete(ar, vdev_id, addr);
 357         if (ret)
 358                 return ret;
 359
 360         ar->num_peers--;
 361
 362         return 0;
 363 }
 364
 365 static int ath11k_wait_for_peer_created(struct ath11k *ar, int vdev_id, const u8 *addr)
 366 {
 367         return ath11k_wait_for_peer_common(ar->ab, vdev_id, addr, true);
 368 }
 369
 370 int ath11k_peer_create(struct ath11k *ar, struct ath11k_vif *arvif,
 371                        struct ieee80211_sta *sta, struct peer_create_params *param)
 372 {
 373         struct ath11k_peer *peer;
 374         struct ath11k_sta *arsta;
 375         int ret, fbret;
 376
 377         lockdep_assert_held(&ar->conf_mutex);
 378
 379         if (ar->num_peers > (ar->max_num_peers - 1)) {
 380                 ath11k_warn(ar->ab,
 381                             "failed to create peer due to insufficient peer entry resource in firmware\n");
 382                 return -ENOBUFS;
 383         }
 384
 385         mutex_lock(&ar->ab->tbl_mtx_lock);
 386         spin_lock_bh(&ar->ab->base_lock);
 387         peer = ath11k_peer_find_by_addr(ar->ab, param->peer_addr);
 388         if (peer) {
 389                 if (peer->vdev_id == param->vdev_id) {
 390                         spin_unlock_bh(&ar->ab->base_lock);
 391                         mutex_unlock(&ar->ab->tbl_mtx_lock);
 392                         return -EINVAL;
 393                 }
 394
 395                 /* Assume sta is transitioning to another band.
 396                  * Remove here the peer from rhash.
 397                  */
 398                 ath11k_peer_rhash_delete(ar->ab, peer);
 399         }
 400         spin_unlock_bh(&ar->ab->base_lock);
 401         mutex_unlock(&ar->ab->tbl_mtx_lock);
 402
 403         ret = ath11k_wmi_send_peer_create_cmd(ar, param);
 404         if (ret) {
 405                 ath11k_warn(ar->ab,
 406                             "failed to send peer create vdev_id %d ret %d\n",
 407                             param->vdev_id, ret);
 408                 return ret;
 409         }
 410
 411         ret = ath11k_wait_for_peer_created(ar, param->vdev_id,
 412                                            param->peer_addr);
 413         if (ret)
 414                 return ret;
 415
 416         mutex_lock(&ar->ab->tbl_mtx_lock);
 417         spin_lock_bh(&ar->ab->base_lock);
 418
 419         peer = ath11k_peer_find(ar->ab, param->vdev_id, param->peer_addr);
 420         if (!peer) {
 421                 spin_unlock_bh(&ar->ab->base_lock);
 422                 mutex_unlock(&ar->ab->tbl_mtx_lock);
 423                 ath11k_warn(ar->ab, "failed to find peer %pM on vdev %i after creation\n",
 424                             param->peer_addr, param->vdev_id);
 425
 426                 ret = -ENOENT;
 427                 goto cleanup;
 428         }
 429
 430         ret = ath11k_peer_rhash_add(ar->ab, peer);
 431         if (ret) {
 432                 spin_unlock_bh(&ar->ab->base_lock);
 433                 mutex_unlock(&ar->ab->tbl_mtx_lock);
 434                 goto cleanup;
 435         }
 436
 437         peer->pdev_idx = ar->pdev_idx;
 438         peer->sta = sta;
 439
 440         if (arvif->vif->type == NL80211_IFTYPE_STATION) {
 441                 arvif->ast_hash = peer->ast_hash;
 442                 arvif->ast_idx = peer->hw_peer_id;
 443         }
 444
 445         peer->sec_type = HAL_ENCRYPT_TYPE_OPEN;
 446         peer->sec_type_grp = HAL_ENCRYPT_TYPE_OPEN;
 447
 448         if (sta) {
 449                 arsta = ath11k_sta_to_arsta(sta);
 450                 arsta->tcl_metadata |= FIELD_PREP(HTT_TCL_META_DATA_TYPE, 0) |
 451                                        FIELD_PREP(HTT_TCL_META_DATA_PEER_ID,
 452                                                   peer->peer_id);
 453
 454                 /* set HTT extension valid bit to 0 by default */
 455                 arsta->tcl_metadata &= ~HTT_TCL_META_DATA_VALID_HTT;
 456         }
 457
 458         ar->num_peers++;
 459
 460         spin_unlock_bh(&ar->ab->base_lock);
 461         mutex_unlock(&ar->ab->tbl_mtx_lock);
 462
 463         return 0;
 464
 465 cleanup:
 466         fbret = __ath11k_peer_delete(ar, param->vdev_id, param->peer_addr);
 467         if (fbret)
 468                 ath11k_warn(ar->ab, "failed peer %pM delete vdev_id %d fallback ret %d\n",
 469                             param->peer_addr, param->vdev_id, fbret);
 470
 471         return ret;
 472 }
 473
 474 int ath11k_peer_rhash_delete(struct ath11k_base *ab, struct ath11k_peer *peer)
 475 {
 476         int ret;
 477
 478         lockdep_assert_held(&ab->base_lock);
 479         lockdep_assert_held(&ab->tbl_mtx_lock);
 480
 481         if (!ab->rhead_peer_id || !ab->rhead_peer_addr)
 482                 return -EPERM;
 483
 484         ret = ath11k_peer_rhash_remove(ab, ab->rhead_peer_addr, &peer->rhash_addr,
 485                                        &ab->rhash_peer_addr_param);
 486         if (ret) {
 487                 ath11k_warn(ab, "failed to remove peer %pM id %d in rhash_addr ret %d\n",
 488                             peer->addr, peer->peer_id, ret);
 489                 return ret;
 490         }
 491
 492         ret = ath11k_peer_rhash_remove(ab, ab->rhead_peer_id, &peer->rhash_id,
 493                                        &ab->rhash_peer_id_param);
 494         if (ret) {
 495                 ath11k_warn(ab, "failed to remove peer %pM id %d in rhash_id ret %d\n",
 496                             peer->addr, peer->peer_id, ret);
 497                 return ret;
 498         }
 499
 500         return 0;
 501 }
 502
 503 static int ath11k_peer_rhash_id_tbl_init(struct ath11k_base *ab)
 504 {
 505         struct rhashtable_params *param;
 506         struct rhashtable *rhash_id_tbl;
 507         int ret;
 508         size_t size;
 509
 510         lockdep_assert_held(&ab->tbl_mtx_lock);
 511
 512         if (ab->rhead_peer_id)
 513                 return 0;
 514
 515         size = sizeof(*ab->rhead_peer_id);
 516         rhash_id_tbl = kzalloc(size, GFP_KERNEL);
 517         if (!rhash_id_tbl) {
 518                 ath11k_warn(ab, "failed to init rhash id table due to no mem (size %zu)\n",
 519                             size);
 520                 return -ENOMEM;
 521         }
 522
 523         param = &ab->rhash_peer_id_param;
 524
 525         param->key_offset = offsetof(struct ath11k_peer, peer_id);
 526         param->head_offset = offsetof(struct ath11k_peer, rhash_id);
 527         param->key_len = sizeof_field(struct ath11k_peer, peer_id);
 528         param->automatic_shrinking = true;
 529         param->nelem_hint = ab->num_radios * TARGET_NUM_PEERS_PDEV(ab);
 530
 531         ret = rhashtable_init(rhash_id_tbl, param);
 532         if (ret) {
 533                 ath11k_warn(ab, "failed to init peer id rhash table %d\n", ret);
 534                 goto err_free;
 535         }
 536
 537         spin_lock_bh(&ab->base_lock);
 538
 539         if (!ab->rhead_peer_id) {
 540                 ab->rhead_peer_id = rhash_id_tbl;
 541         } else {
 542                 spin_unlock_bh(&ab->base_lock);
 543                 goto cleanup_tbl;
 544         }
 545
 546         spin_unlock_bh(&ab->base_lock);
 547
 548         return 0;
 549
 550 cleanup_tbl:
 551         rhashtable_destroy(rhash_id_tbl);
 552 err_free:
 553         kfree(rhash_id_tbl);
 554
 555         return ret;
 556 }
 557
 558 static int ath11k_peer_rhash_addr_tbl_init(struct ath11k_base *ab)
 559 {
 560         struct rhashtable_params *param;
 561         struct rhashtable *rhash_addr_tbl;
 562         int ret;
 563         size_t size;
 564
 565         lockdep_assert_held(&ab->tbl_mtx_lock);
 566
 567         if (ab->rhead_peer_addr)
 568                 return 0;
 569
 570         size = sizeof(*ab->rhead_peer_addr);
 571         rhash_addr_tbl = kzalloc(size, GFP_KERNEL);
 572         if (!rhash_addr_tbl) {
 573                 ath11k_warn(ab, "failed to init rhash addr table due to no mem (size %zu)\n",
 574                             size);
 575                 return -ENOMEM;
 576         }
 577
 578         param = &ab->rhash_peer_addr_param;
 579
 580         param->key_offset = offsetof(struct ath11k_peer, addr);
 581         param->head_offset = offsetof(struct ath11k_peer, rhash_addr);
 582         param->key_len = sizeof_field(struct ath11k_peer, addr);
 583         param->automatic_shrinking = true;
 584         param->nelem_hint = ab->num_radios * TARGET_NUM_PEERS_PDEV(ab);
 585
 586         ret = rhashtable_init(rhash_addr_tbl, param);
 587         if (ret) {
 588                 ath11k_warn(ab, "failed to init peer addr rhash table %d\n", ret);
 589                 goto err_free;
 590         }
 591
 592         spin_lock_bh(&ab->base_lock);
 593
 594         if (!ab->rhead_peer_addr) {
 595                 ab->rhead_peer_addr = rhash_addr_tbl;
 596         } else {
 597                 spin_unlock_bh(&ab->base_lock);
 598                 goto cleanup_tbl;
 599         }
 600
 601         spin_unlock_bh(&ab->base_lock);
 602
 603         return 0;
 604
 605 cleanup_tbl:
 606         rhashtable_destroy(rhash_addr_tbl);
 607 err_free:
 608         kfree(rhash_addr_tbl);
 609
 610         return ret;
 611 }
 612
 613 static inline void ath11k_peer_rhash_id_tbl_destroy(struct ath11k_base *ab)
 614 {
 615         lockdep_assert_held(&ab->tbl_mtx_lock);
 616
 617         if (!ab->rhead_peer_id)
 618                 return;
 619
 620         rhashtable_destroy(ab->rhead_peer_id);
 621         kfree(ab->rhead_peer_id);
 622         ab->rhead_peer_id = NULL;
 623 }
 624
 625 static inline void ath11k_peer_rhash_addr_tbl_destroy(struct ath11k_base *ab)
 626 {
 627         lockdep_assert_held(&ab->tbl_mtx_lock);
 628
 629         if (!ab->rhead_peer_addr)
 630                 return;
 631
 632         rhashtable_destroy(ab->rhead_peer_addr);
 633         kfree(ab->rhead_peer_addr);
 634         ab->rhead_peer_addr = NULL;
 635 }
 636
 637 int ath11k_peer_rhash_tbl_init(struct ath11k_base *ab)
 638 {
 639         int ret;
 640
 641         mutex_lock(&ab->tbl_mtx_lock);
 642
 643         ret = ath11k_peer_rhash_id_tbl_init(ab);
 644         if (ret)
 645                 goto out;
 646
 647         ret = ath11k_peer_rhash_addr_tbl_init(ab);
 648         if (ret)
 649                 goto cleanup_tbl;
 650
 651         mutex_unlock(&ab->tbl_mtx_lock);
 652
 653         return 0;
 654
 655 cleanup_tbl:
 656         ath11k_peer_rhash_id_tbl_destroy(ab);
 657 out:
 658         mutex_unlock(&ab->tbl_mtx_lock);
 659         return ret;
 660 }
 661
 662 void ath11k_peer_rhash_tbl_destroy(struct ath11k_base *ab)
 663 {
 664         mutex_lock(&ab->tbl_mtx_lock);
 665
 666         ath11k_peer_rhash_addr_tbl_destroy(ab);
 667         ath11k_peer_rhash_id_tbl_destroy(ab);
 668
 669         mutex_unlock(&ab->tbl_mtx_lock);
 670 }