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13#include <linux/debugfs.h>
14#include <linux/ieee80211.h>
15#include "ieee80211_i.h"
16#include "debugfs.h"
17#include "debugfs_sta.h"
18#include "sta_info.h"
19#include "driver-ops.h"
20
21
22
23#define STA_READ(name, field, format_string) \
24static ssize_t sta_ ##name## _read(struct file *file, \
25 char __user *userbuf, \
26 size_t count, loff_t *ppos) \
27{ \
28 struct sta_info *sta = file->private_data; \
29 return mac80211_format_buffer(userbuf, count, ppos, \
30 format_string, sta->field); \
31}
32#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
33
34#define STA_OPS(name) \
35static const struct file_operations sta_ ##name## _ops = { \
36 .read = sta_##name##_read, \
37 .open = simple_open, \
38 .llseek = generic_file_llseek, \
39}
40
41#define STA_OPS_RW(name) \
42static const struct file_operations sta_ ##name## _ops = { \
43 .read = sta_##name##_read, \
44 .write = sta_##name##_write, \
45 .open = simple_open, \
46 .llseek = generic_file_llseek, \
47}
48
49#define STA_FILE(name, field, format) \
50 STA_READ_##format(name, field) \
51 STA_OPS(name)
52
53STA_FILE(aid, sta.aid, D);
54
55static const char * const sta_flag_names[] = {
56#define FLAG(F) [WLAN_STA_##F] = #F
57 FLAG(AUTH),
58 FLAG(ASSOC),
59 FLAG(PS_STA),
60 FLAG(AUTHORIZED),
61 FLAG(SHORT_PREAMBLE),
62 FLAG(WDS),
63 FLAG(CLEAR_PS_FILT),
64 FLAG(MFP),
65 FLAG(BLOCK_BA),
66 FLAG(PS_DRIVER),
67 FLAG(PSPOLL),
68 FLAG(TDLS_PEER),
69 FLAG(TDLS_PEER_AUTH),
70 FLAG(TDLS_INITIATOR),
71 FLAG(TDLS_CHAN_SWITCH),
72 FLAG(TDLS_OFF_CHANNEL),
73 FLAG(TDLS_WIDER_BW),
74 FLAG(UAPSD),
75 FLAG(SP),
76 FLAG(4ADDR_EVENT),
77 FLAG(INSERTED),
78 FLAG(RATE_CONTROL),
79 FLAG(TOFFSET_KNOWN),
80 FLAG(MPSP_OWNER),
81 FLAG(MPSP_RECIPIENT),
82 FLAG(PS_DELIVER),
83#undef FLAG
84};
85
86static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
87 size_t count, loff_t *ppos)
88{
89 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
90 char *end = buf + sizeof(buf) - 1;
91 struct sta_info *sta = file->private_data;
92 unsigned int flg;
93
94 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
95
96 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
97 if (test_sta_flag(sta, flg))
98 pos += scnprintf(pos, end - pos, "%s\n",
99 sta_flag_names[flg]);
100 }
101
102 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
103}
104STA_OPS(flags);
105
106static ssize_t sta_num_ps_buf_frames_read(struct file *file,
107 char __user *userbuf,
108 size_t count, loff_t *ppos)
109{
110 struct sta_info *sta = file->private_data;
111 char buf[17*IEEE80211_NUM_ACS], *p = buf;
112 int ac;
113
114 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
115 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
116 skb_queue_len(&sta->ps_tx_buf[ac]) +
117 skb_queue_len(&sta->tx_filtered[ac]));
118 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
119}
120STA_OPS(num_ps_buf_frames);
121
122static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
123 size_t count, loff_t *ppos)
124{
125 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
126 int i;
127 struct sta_info *sta = file->private_data;
128 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
129 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
130 le16_to_cpu(sta->last_seq_ctrl[i]));
131 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
132 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
133}
134STA_OPS(last_seq_ctrl);
135
136#define AQM_TXQ_ENTRY_LEN 130
137
138static ssize_t sta_aqm_read(struct file *file, char __user *userbuf,
139 size_t count, loff_t *ppos)
140{
141 struct sta_info *sta = file->private_data;
142 struct ieee80211_local *local = sta->local;
143 size_t bufsz = AQM_TXQ_ENTRY_LEN*(IEEE80211_NUM_TIDS+1);
144 char *buf = kzalloc(bufsz, GFP_KERNEL), *p = buf;
145 struct txq_info *txqi;
146 ssize_t rv;
147 int i;
148
149 if (!buf)
150 return -ENOMEM;
151
152 spin_lock_bh(&local->fq.lock);
153 rcu_read_lock();
154
155 p += scnprintf(p,
156 bufsz+buf-p,
157 "target %uus interval %uus ecn %s\n",
158 codel_time_to_us(sta->cparams.target),
159 codel_time_to_us(sta->cparams.interval),
160 sta->cparams.ecn ? "yes" : "no");
161 p += scnprintf(p,
162 bufsz+buf-p,
163 "tid ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets flags\n");
164
165 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
166 txqi = to_txq_info(sta->sta.txq[i]);
167 p += scnprintf(p, bufsz+buf-p,
168 "%d %d %u %u %u %u %u %u %u %u %u 0x%lx(%s%s%s)\n",
169 txqi->txq.tid,
170 txqi->txq.ac,
171 txqi->tin.backlog_bytes,
172 txqi->tin.backlog_packets,
173 txqi->tin.flows,
174 txqi->cstats.drop_count,
175 txqi->cstats.ecn_mark,
176 txqi->tin.overlimit,
177 txqi->tin.collisions,
178 txqi->tin.tx_bytes,
179 txqi->tin.tx_packets,
180 txqi->flags,
181 txqi->flags & (1<<IEEE80211_TXQ_STOP) ? "STOP" : "RUN",
182 txqi->flags & (1<<IEEE80211_TXQ_AMPDU) ? " AMPDU" : "",
183 txqi->flags & (1<<IEEE80211_TXQ_NO_AMSDU) ? " NO-AMSDU" : "");
184 }
185
186 rcu_read_unlock();
187 spin_unlock_bh(&local->fq.lock);
188
189 rv = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
190 kfree(buf);
191 return rv;
192}
193STA_OPS(aqm);
194
195static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
196 size_t count, loff_t *ppos)
197{
198 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
199 int i;
200 struct sta_info *sta = file->private_data;
201 struct tid_ampdu_rx *tid_rx;
202 struct tid_ampdu_tx *tid_tx;
203
204 rcu_read_lock();
205
206 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
207 sta->ampdu_mlme.dialog_token_allocator + 1);
208 p += scnprintf(p, sizeof(buf) + buf - p,
209 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
210
211 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
212 bool tid_rx_valid;
213
214 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
215 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
216 tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
217
218 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
219 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
220 tid_rx_valid);
221 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
222 tid_rx_valid ?
223 sta->ampdu_mlme.tid_rx_token[i] : 0);
224 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
225 tid_rx ? tid_rx->ssn : 0);
226
227 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
228 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
229 tid_tx ? tid_tx->dialog_token : 0);
230 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
231 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
232 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
233 }
234 rcu_read_unlock();
235
236 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
237}
238
239static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
240 size_t count, loff_t *ppos)
241{
242 char _buf[25] = {}, *buf = _buf;
243 struct sta_info *sta = file->private_data;
244 bool start, tx;
245 unsigned long tid;
246 char *pos;
247 int ret, timeout = 5000;
248
249 if (count > sizeof(_buf))
250 return -EINVAL;
251
252 if (copy_from_user(buf, userbuf, count))
253 return -EFAULT;
254
255 buf[sizeof(_buf) - 1] = '\0';
256 pos = buf;
257 buf = strsep(&pos, " ");
258 if (!buf)
259 return -EINVAL;
260
261 if (!strcmp(buf, "tx"))
262 tx = true;
263 else if (!strcmp(buf, "rx"))
264 tx = false;
265 else
266 return -EINVAL;
267
268 buf = strsep(&pos, " ");
269 if (!buf)
270 return -EINVAL;
271 if (!strcmp(buf, "start")) {
272 start = true;
273 if (!tx)
274 return -EINVAL;
275 } else if (!strcmp(buf, "stop")) {
276 start = false;
277 } else {
278 return -EINVAL;
279 }
280
281 buf = strsep(&pos, " ");
282 if (!buf)
283 return -EINVAL;
284 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
285 buf = strsep(&pos, " ");
286 if (!buf || !tx || !start)
287 return -EINVAL;
288 }
289
290 ret = kstrtoul(buf, 0, &tid);
291 if (ret || tid >= IEEE80211_NUM_TIDS)
292 return -EINVAL;
293
294 if (tx) {
295 if (start)
296 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
297 timeout);
298 else
299 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
300 } else {
301 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
302 3, true);
303 ret = 0;
304 }
305
306 return ret ?: count;
307}
308STA_OPS_RW(agg_status);
309
310static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
311 size_t count, loff_t *ppos)
312{
313#define PRINT_HT_CAP(_cond, _str) \
314 do { \
315 if (_cond) \
316 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
317 } while (0)
318 char buf[512], *p = buf;
319 int i;
320 struct sta_info *sta = file->private_data;
321 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
322
323 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
324 htc->ht_supported ? "" : "not ");
325 if (htc->ht_supported) {
326 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
327
328 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
329 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
330 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
331
332 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
333 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
334 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
335
336 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
337 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
338 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
339 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
340
341 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
342 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
343 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
344 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
345
346 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
347
348 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
349 "3839 bytes");
350 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
351 "7935 bytes");
352
353
354
355
356
357
358
359 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
360 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
361
362
363
364 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
365
366 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
367
368 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
369 htc->ampdu_factor, htc->ampdu_density);
370 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
371
372 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
373 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
374 htc->mcs.rx_mask[i]);
375 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
376
377
378 if (le16_to_cpu(htc->mcs.rx_highest)) {
379 p += scnprintf(p, sizeof(buf)+buf-p,
380 "MCS rx highest: %d Mbps\n",
381 le16_to_cpu(htc->mcs.rx_highest));
382 }
383
384 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
385 htc->mcs.tx_params);
386 }
387
388 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
389}
390STA_OPS(ht_capa);
391
392static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
393 size_t count, loff_t *ppos)
394{
395 char buf[512], *p = buf;
396 struct sta_info *sta = file->private_data;
397 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
398
399 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
400 vhtc->vht_supported ? "" : "not ");
401 if (vhtc->vht_supported) {
402 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
403 vhtc->cap);
404#define PFLAG(a, b) \
405 do { \
406 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
407 p += scnprintf(p, sizeof(buf) + buf - p, \
408 "\t\t%s\n", b); \
409 } while (0)
410
411 switch (vhtc->cap & 0x3) {
412 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
413 p += scnprintf(p, sizeof(buf) + buf - p,
414 "\t\tMAX-MPDU-3895\n");
415 break;
416 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
417 p += scnprintf(p, sizeof(buf) + buf - p,
418 "\t\tMAX-MPDU-7991\n");
419 break;
420 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
421 p += scnprintf(p, sizeof(buf) + buf - p,
422 "\t\tMAX-MPDU-11454\n");
423 break;
424 default:
425 p += scnprintf(p, sizeof(buf) + buf - p,
426 "\t\tMAX-MPDU-UNKNOWN\n");
427 }
428 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
429 case 0:
430 p += scnprintf(p, sizeof(buf) + buf - p,
431 "\t\t80Mhz\n");
432 break;
433 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
434 p += scnprintf(p, sizeof(buf) + buf - p,
435 "\t\t160Mhz\n");
436 break;
437 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
438 p += scnprintf(p, sizeof(buf) + buf - p,
439 "\t\t80+80Mhz\n");
440 break;
441 default:
442 p += scnprintf(p, sizeof(buf) + buf - p,
443 "\t\tUNKNOWN-MHZ: 0x%x\n",
444 (vhtc->cap >> 2) & 0x3);
445 }
446 PFLAG(RXLDPC, "RXLDPC");
447 PFLAG(SHORT_GI_80, "SHORT-GI-80");
448 PFLAG(SHORT_GI_160, "SHORT-GI-160");
449 PFLAG(TXSTBC, "TXSTBC");
450 p += scnprintf(p, sizeof(buf) + buf - p,
451 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
452 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
453 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
454 p += scnprintf(p, sizeof(buf) + buf - p,
455 "\t\tBEAMFORMEE-STS: 0x%x\n",
456 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
457 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
458 p += scnprintf(p, sizeof(buf) + buf - p,
459 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
460 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
461 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
462 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
463 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
464 PFLAG(VHT_TXOP_PS, "TXOP-PS");
465 PFLAG(HTC_VHT, "HTC-VHT");
466 p += scnprintf(p, sizeof(buf) + buf - p,
467 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
468 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
469 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
470 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
471 "LINK-ADAPTATION-VHT-UNSOL-MFB");
472 p += scnprintf(p, sizeof(buf) + buf - p,
473 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
474 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
475 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
476 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
477
478 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
479 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
480 if (vhtc->vht_mcs.rx_highest)
481 p += scnprintf(p, sizeof(buf)+buf-p,
482 "MCS RX highest: %d Mbps\n",
483 le16_to_cpu(vhtc->vht_mcs.rx_highest));
484 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
485 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
486 if (vhtc->vht_mcs.tx_highest)
487 p += scnprintf(p, sizeof(buf)+buf-p,
488 "MCS TX highest: %d Mbps\n",
489 le16_to_cpu(vhtc->vht_mcs.tx_highest));
490 }
491
492 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
493}
494STA_OPS(vht_capa);
495
496
497#define DEBUGFS_ADD(name) \
498 debugfs_create_file(#name, 0400, \
499 sta->debugfs_dir, sta, &sta_ ##name## _ops);
500
501#define DEBUGFS_ADD_COUNTER(name, field) \
502 if (sizeof(sta->field) == sizeof(u32)) \
503 debugfs_create_u32(#name, 0400, sta->debugfs_dir, \
504 (u32 *) &sta->field); \
505 else \
506 debugfs_create_u64(#name, 0400, sta->debugfs_dir, \
507 (u64 *) &sta->field);
508
509void ieee80211_sta_debugfs_add(struct sta_info *sta)
510{
511 struct ieee80211_local *local = sta->local;
512 struct ieee80211_sub_if_data *sdata = sta->sdata;
513 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
514 u8 mac[3*ETH_ALEN];
515
516 if (!stations_dir)
517 return;
518
519 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
520
521
522
523
524
525
526
527
528
529
530 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
531 if (!sta->debugfs_dir)
532 return;
533
534 DEBUGFS_ADD(flags);
535 DEBUGFS_ADD(aid);
536 DEBUGFS_ADD(num_ps_buf_frames);
537 DEBUGFS_ADD(last_seq_ctrl);
538 DEBUGFS_ADD(agg_status);
539 DEBUGFS_ADD(ht_capa);
540 DEBUGFS_ADD(vht_capa);
541
542 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
543 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
544 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
545
546 if (local->ops->wake_tx_queue)
547 DEBUGFS_ADD(aqm);
548
549 if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
550 debugfs_create_x32("driver_buffered_tids", 0400,
551 sta->debugfs_dir,
552 (u32 *)&sta->driver_buffered_tids);
553 else
554 debugfs_create_x64("driver_buffered_tids", 0400,
555 sta->debugfs_dir,
556 (u64 *)&sta->driver_buffered_tids);
557
558 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
559}
560
561void ieee80211_sta_debugfs_remove(struct sta_info *sta)
562{
563 debugfs_remove_recursive(sta->debugfs_dir);
564 sta->debugfs_dir = NULL;
565}
566
