drivers/net/wireless/ath/wil6210/cfg80211.c

   1 /*
   2  * Copyright (c) 2012 Qualcomm Atheros, Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <linux/netdevice.h>
  19 #include <linux/sched.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/wireless.h>
  22 #include <linux/ieee80211.h>
  23 #include <linux/slab.h>
  24 #include <net/cfg80211.h>
  25
  26 #include "wil6210.h"
  27 #include "wmi.h"
  28
  29 #define CHAN60G(_channel, _flags) {                             \
  30         .band                   = IEEE80211_BAND_60GHZ,         \
  31         .center_freq            = 56160 + (2160 * (_channel)),  \
  32         .hw_value               = (_channel),                   \
  33         .flags                  = (_flags),                     \
  34         .max_antenna_gain       = 0,                            \
  35         .max_power              = 40,                           \
  36 }
  37
  38 static struct ieee80211_channel wil_60ghz_channels[] = {
  39         CHAN60G(1, 0),
  40         CHAN60G(2, 0),
  41         CHAN60G(3, 0),
  42 /* channel 4 not supported yet */
  43 };
  44
  45 static struct ieee80211_supported_band wil_band_60ghz = {
  46         .channels = wil_60ghz_channels,
  47         .n_channels = ARRAY_SIZE(wil_60ghz_channels),
  48         .ht_cap = {
  49                 .ht_supported = true,
  50                 .cap = 0, /* TODO */
  51                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
  52                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
  53                 .mcs = {
  54                                 /* MCS 1..12 - SC PHY */
  55                         .rx_mask = {0xfe, 0x1f}, /* 1..12 */
  56                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
  57                 },
  58         },
  59 };
  60
  61 static const struct ieee80211_txrx_stypes
  62 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
  63         [NL80211_IFTYPE_STATION] = {
  64                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  65                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  66                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  67                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  68         },
  69         [NL80211_IFTYPE_AP] = {
  70                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  71                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  72                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  73                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  74         },
  75         [NL80211_IFTYPE_P2P_CLIENT] = {
  76                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  77                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  78                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  79                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  80         },
  81         [NL80211_IFTYPE_P2P_GO] = {
  82                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  83                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  84                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  85                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  86         },
  87 };
  88
  89 static const u32 wil_cipher_suites[] = {
  90         WLAN_CIPHER_SUITE_GCMP,
  91 };
  92
  93 int wil_iftype_nl2wmi(enum nl80211_iftype type)
  94 {
  95         static const struct {
  96                 enum nl80211_iftype nl;
  97                 enum wmi_network_type wmi;
  98         } __nl2wmi[] = {
  99                 {NL80211_IFTYPE_ADHOC,          WMI_NETTYPE_ADHOC},
 100                 {NL80211_IFTYPE_STATION,        WMI_NETTYPE_INFRA},
 101                 {NL80211_IFTYPE_AP,             WMI_NETTYPE_AP},
 102                 {NL80211_IFTYPE_P2P_CLIENT,     WMI_NETTYPE_P2P},
 103                 {NL80211_IFTYPE_P2P_GO,         WMI_NETTYPE_P2P},
 104                 {NL80211_IFTYPE_MONITOR,        WMI_NETTYPE_ADHOC}, /* FIXME */
 105         };
 106         uint i;
 107
 108         for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
 109                 if (__nl2wmi[i].nl == type)
 110                         return __nl2wmi[i].wmi;
 111         }
 112
 113         return -EOPNOTSUPP;
 114 }
 115
 116 static int wil_cfg80211_get_station(struct wiphy *wiphy,
 117                                     struct net_device *ndev,
 118                                     u8 *mac, struct station_info *sinfo)
 119 {
 120         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 121         int rc;
 122         struct wmi_notify_req_cmd cmd = {
 123                 .cid = 0,
 124                 .interval_usec = 0,
 125         };
 126
 127         if (memcmp(mac, wil->dst_addr[0], ETH_ALEN))
 128                 return -ENOENT;
 129
 130         /* WMI_NOTIFY_REQ_DONE_EVENTID handler fills wil->stats.bf_mcs */
 131         rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
 132                       WMI_NOTIFY_REQ_DONE_EVENTID, NULL, 0, 20);
 133         if (rc)
 134                 return rc;
 135
 136         sinfo->generation = wil->sinfo_gen;
 137
 138         sinfo->filled |= STATION_INFO_TX_BITRATE;
 139         sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 140         sinfo->txrate.mcs = wil->stats.bf_mcs;
 141         sinfo->filled |= STATION_INFO_RX_BITRATE;
 142         sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 143         sinfo->rxrate.mcs = wil->stats.last_mcs_rx;
 144
 145         if (test_bit(wil_status_fwconnected, &wil->status)) {
 146                 sinfo->filled |= STATION_INFO_SIGNAL;
 147                 sinfo->signal = 12; /* TODO: provide real value */
 148         }
 149
 150         return 0;
 151 }
 152
 153 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
 154                                      struct net_device *ndev,
 155                                      enum nl80211_iftype type, u32 *flags,
 156                                      struct vif_params *params)
 157 {
 158         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 159         struct wireless_dev *wdev = wil->wdev;
 160
 161         switch (type) {
 162         case NL80211_IFTYPE_STATION:
 163         case NL80211_IFTYPE_AP:
 164         case NL80211_IFTYPE_P2P_CLIENT:
 165         case NL80211_IFTYPE_P2P_GO:
 166                 break;
 167         case NL80211_IFTYPE_MONITOR:
 168                 if (flags)
 169                         wil->monitor_flags = *flags;
 170                 else
 171                         wil->monitor_flags = 0;
 172
 173                 break;
 174         default:
 175                 return -EOPNOTSUPP;
 176         }
 177
 178         wdev->iftype = type;
 179
 180         return 0;
 181 }
 182
 183 static int wil_cfg80211_scan(struct wiphy *wiphy,
 184                              struct cfg80211_scan_request *request)
 185 {
 186         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 187         struct wireless_dev *wdev = wil->wdev;
 188         struct {
 189                 struct wmi_start_scan_cmd cmd;
 190                 u16 chnl[4];
 191         } __packed cmd;
 192         uint i, n;
 193
 194         if (wil->scan_request) {
 195                 wil_err(wil, "Already scanning\n");
 196                 return -EAGAIN;
 197         }
 198
 199         /* check we are client side */
 200         switch (wdev->iftype) {
 201         case NL80211_IFTYPE_STATION:
 202         case NL80211_IFTYPE_P2P_CLIENT:
 203                 break;
 204         default:
 205                 return -EOPNOTSUPP;
 206         }
 207
 208         /* FW don't support scan after connection attempt */
 209         if (test_bit(wil_status_dontscan, &wil->status)) {
 210                 wil_err(wil, "Scan after connect attempt not supported\n");
 211                 return -EBUSY;
 212         }
 213
 214         wil->scan_request = request;
 215
 216         memset(&cmd, 0, sizeof(cmd));
 217         cmd.cmd.num_channels = 0;
 218         n = min(request->n_channels, 4U);
 219         for (i = 0; i < n; i++) {
 220                 int ch = request->channels[i]->hw_value;
 221                 if (ch == 0) {
 222                         wil_err(wil,
 223                                 "Scan requested for unknown frequency %dMhz\n",
 224                                 request->channels[i]->center_freq);
 225                         continue;
 226                 }
 227                 /* 0-based channel indexes */
 228                 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
 229                 wil_dbg_misc(wil, "Scan for ch %d  : %d MHz\n", ch,
 230                              request->channels[i]->center_freq);
 231         }
 232
 233         return wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
 234                         cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
 235 }
 236
 237 static int wil_cfg80211_connect(struct wiphy *wiphy,
 238                                 struct net_device *ndev,
 239                                 struct cfg80211_connect_params *sme)
 240 {
 241         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 242         struct cfg80211_bss *bss;
 243         struct wmi_connect_cmd conn;
 244         const u8 *ssid_eid;
 245         const u8 *rsn_eid;
 246         int ch;
 247         int rc = 0;
 248
 249         bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 250                                sme->ssid, sme->ssid_len,
 251                                WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
 252         if (!bss) {
 253                 wil_err(wil, "Unable to find BSS\n");
 254                 return -ENOENT;
 255         }
 256
 257         ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 258         if (!ssid_eid) {
 259                 wil_err(wil, "No SSID\n");
 260                 rc = -ENOENT;
 261                 goto out;
 262         }
 263
 264         rsn_eid = sme->ie ?
 265                         cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
 266                         NULL;
 267         if (rsn_eid) {
 268                 if (sme->ie_len > WMI_MAX_IE_LEN) {
 269                         rc = -ERANGE;
 270                         wil_err(wil, "IE too large (%td bytes)\n",
 271                                 sme->ie_len);
 272                         goto out;
 273                 }
 274                 /*
 275                  * For secure assoc, send:
 276                  * (1) WMI_DELETE_CIPHER_KEY_CMD
 277                  * (2) WMI_SET_APPIE_CMD
 278                  */
 279                 rc = wmi_del_cipher_key(wil, 0, bss->bssid);
 280                 if (rc) {
 281                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD failed\n");
 282                         goto out;
 283                 }
 284                 /* WMI_SET_APPIE_CMD */
 285                 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
 286                 if (rc) {
 287                         wil_err(wil, "WMI_SET_APPIE_CMD failed\n");
 288                         goto out;
 289                 }
 290         }
 291
 292         /* WMI_CONNECT_CMD */
 293         memset(&conn, 0, sizeof(conn));
 294         switch (bss->capability & 0x03) {
 295         case WLAN_CAPABILITY_DMG_TYPE_AP:
 296                 conn.network_type = WMI_NETTYPE_INFRA;
 297                 break;
 298         case WLAN_CAPABILITY_DMG_TYPE_PBSS:
 299                 conn.network_type = WMI_NETTYPE_P2P;
 300                 break;
 301         default:
 302                 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
 303                         bss->capability);
 304                 goto out;
 305         }
 306         if (rsn_eid) {
 307                 conn.dot11_auth_mode = WMI_AUTH11_SHARED;
 308                 conn.auth_mode = WMI_AUTH_WPA2_PSK;
 309                 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
 310                 conn.pairwise_crypto_len = 16;
 311         } else {
 312                 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
 313                 conn.auth_mode = WMI_AUTH_NONE;
 314         }
 315
 316         conn.ssid_len = min_t(u8, ssid_eid[1], 32);
 317         memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
 318
 319         ch = bss->channel->hw_value;
 320         if (ch == 0) {
 321                 wil_err(wil, "BSS at unknown frequency %dMhz\n",
 322                         bss->channel->center_freq);
 323                 rc = -EOPNOTSUPP;
 324                 goto out;
 325         }
 326         conn.channel = ch - 1;
 327
 328         memcpy(conn.bssid, bss->bssid, 6);
 329         memcpy(conn.dst_mac, bss->bssid, 6);
 330         /*
 331          * FW don't support scan after connection attempt
 332          */
 333         set_bit(wil_status_dontscan, &wil->status);
 334
 335         rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 336         if (rc == 0) {
 337                 /* Connect can take lots of time */
 338                 mod_timer(&wil->connect_timer,
 339                           jiffies + msecs_to_jiffies(2000));
 340         }
 341
 342  out:
 343         cfg80211_put_bss(wiphy, bss);
 344
 345         return rc;
 346 }
 347
 348 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
 349                                    struct net_device *ndev,
 350                                    u16 reason_code)
 351 {
 352         int rc;
 353         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 354
 355         rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0);
 356
 357         return rc;
 358 }
 359
 360 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
 361                                     struct cfg80211_chan_def *chandef)
 362 {
 363         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 364         struct wireless_dev *wdev = wil->wdev;
 365
 366         wdev->preset_chandef = *chandef;
 367
 368         return 0;
 369 }
 370
 371 static int wil_cfg80211_add_key(struct wiphy *wiphy,
 372                                 struct net_device *ndev,
 373                                 u8 key_index, bool pairwise,
 374                                 const u8 *mac_addr,
 375                                 struct key_params *params)
 376 {
 377         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 378
 379         /* group key is not used */
 380         if (!pairwise)
 381                 return 0;
 382
 383         return wmi_add_cipher_key(wil, key_index, mac_addr,
 384                                   params->key_len, params->key);
 385 }
 386
 387 static int wil_cfg80211_del_key(struct wiphy *wiphy,
 388                                 struct net_device *ndev,
 389                                 u8 key_index, bool pairwise,
 390                                 const u8 *mac_addr)
 391 {
 392         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 393
 394         /* group key is not used */
 395         if (!pairwise)
 396                 return 0;
 397
 398         return wmi_del_cipher_key(wil, key_index, mac_addr);
 399 }
 400
 401 /* Need to be present or wiphy_new() will WARN */
 402 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 403                                         struct net_device *ndev,
 404                                         u8 key_index, bool unicast,
 405                                         bool multicast)
 406 {
 407         return 0;
 408 }
 409
 410 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 411                                  struct net_device *ndev,
 412                                  struct cfg80211_ap_settings *info)
 413 {
 414         int rc = 0;
 415         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 416         struct wireless_dev *wdev = ndev->ieee80211_ptr;
 417         struct ieee80211_channel *channel = info->chandef.chan;
 418         struct cfg80211_beacon_data *bcon = &info->beacon;
 419         u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
 420
 421         if (!channel) {
 422                 wil_err(wil, "AP: No channel???\n");
 423                 return -EINVAL;
 424         }
 425
 426         wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
 427                      channel->center_freq, info->privacy ? "secure" : "open");
 428         print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 429                              info->ssid, info->ssid_len);
 430
 431         rc = wil_reset(wil);
 432         if (rc)
 433                 return rc;
 434
 435         rc = wmi_set_ssid(wil, info->ssid_len, info->ssid);
 436         if (rc)
 437                 return rc;
 438
 439         rc = wmi_set_channel(wil, channel->hw_value);
 440         if (rc)
 441                 return rc;
 442
 443         /* MAC address - pre-requisite for other commands */
 444         wmi_set_mac_address(wil, ndev->dev_addr);
 445
 446         /* IE's */
 447         /* bcon 'head IE's are not relevant for 60g band */
 448         wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
 449                    bcon->beacon_ies);
 450         wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, bcon->proberesp_ies_len,
 451                    bcon->proberesp_ies);
 452         wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, bcon->assocresp_ies_len,
 453                    bcon->assocresp_ies);
 454
 455         wil->secure_pcp = info->privacy;
 456
 457         rc = wmi_set_bcon(wil, info->beacon_interval, wmi_nettype);
 458         if (rc)
 459                 return rc;
 460
 461         /* Rx VRING. After MAC and beacon */
 462         rc = wil_rx_init(wil);
 463
 464         netif_carrier_on(ndev);
 465
 466         return rc;
 467 }
 468
 469 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
 470                                 struct net_device *ndev)
 471 {
 472         int rc = 0;
 473         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 474         struct wireless_dev *wdev = ndev->ieee80211_ptr;
 475         u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
 476
 477         /* To stop beaconing, set BI to 0 */
 478         rc = wmi_set_bcon(wil, 0, wmi_nettype);
 479
 480         return rc;
 481 }
 482
 483 static struct cfg80211_ops wil_cfg80211_ops = {
 484         .scan = wil_cfg80211_scan,
 485         .connect = wil_cfg80211_connect,
 486         .disconnect = wil_cfg80211_disconnect,
 487         .change_virtual_intf = wil_cfg80211_change_iface,
 488         .get_station = wil_cfg80211_get_station,
 489         .set_monitor_channel = wil_cfg80211_set_channel,
 490         .add_key = wil_cfg80211_add_key,
 491         .del_key = wil_cfg80211_del_key,
 492         .set_default_key = wil_cfg80211_set_default_key,
 493         /* AP mode */
 494         .start_ap = wil_cfg80211_start_ap,
 495         .stop_ap = wil_cfg80211_stop_ap,
 496 };
 497
 498 static void wil_wiphy_init(struct wiphy *wiphy)
 499 {
 500         /* TODO: set real value */
 501         wiphy->max_scan_ssids = 10;
 502         wiphy->max_num_pmkids = 0 /* TODO: */;
 503         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 504                                  BIT(NL80211_IFTYPE_AP) |
 505                                  BIT(NL80211_IFTYPE_MONITOR);
 506         /* TODO: enable P2P when integrated with supplicant:
 507          * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO)
 508          */
 509         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
 510                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
 511         dev_warn(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
 512                  __func__, wiphy->flags);
 513         wiphy->probe_resp_offload =
 514                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
 515                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
 516                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
 517
 518         wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz;
 519
 520         /* TODO: figure this out */
 521         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
 522
 523         wiphy->cipher_suites = wil_cipher_suites;
 524         wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
 525         wiphy->mgmt_stypes = wil_mgmt_stypes;
 526 }
 527
 528 struct wireless_dev *wil_cfg80211_init(struct device *dev)
 529 {
 530         int rc = 0;
 531         struct wireless_dev *wdev;
 532
 533         wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
 534         if (!wdev)
 535                 return ERR_PTR(-ENOMEM);
 536
 537         wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
 538                                 sizeof(struct wil6210_priv));
 539         if (!wdev->wiphy) {
 540                 rc = -ENOMEM;
 541                 goto out;
 542         }
 543
 544         set_wiphy_dev(wdev->wiphy, dev);
 545         wil_wiphy_init(wdev->wiphy);
 546
 547         rc = wiphy_register(wdev->wiphy);
 548         if (rc < 0)
 549                 goto out_failed_reg;
 550
 551         return wdev;
 552
 553 out_failed_reg:
 554         wiphy_free(wdev->wiphy);
 555 out:
 556         kfree(wdev);
 557
 558         return ERR_PTR(rc);
 559 }
 560
 561 void wil_wdev_free(struct wil6210_priv *wil)
 562 {
 563         struct wireless_dev *wdev = wil_to_wdev(wil);
 564
 565         if (!wdev)
 566                 return;
 567
 568         wiphy_unregister(wdev->wiphy);
 569         wiphy_free(wdev->wiphy);
 570         kfree(wdev);
 571 }