Commit | Line | Data |
---|---|---|
b203ffc3 JM |
1 | /* |
2 | * Off-channel operation helpers | |
3 | * | |
4 | * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> | |
5 | * Copyright 2004, Instant802 Networks, Inc. | |
6 | * Copyright 2005, Devicescape Software, Inc. | |
7 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
8 | * Copyright 2007, Michael Wu <flamingice@sourmilk.net> | |
9 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
bc3b2d7f | 15 | #include <linux/export.h> |
b203ffc3 JM |
16 | #include <net/mac80211.h> |
17 | #include "ieee80211_i.h" | |
2eb278e0 | 18 | #include "driver-ops.h" |
b203ffc3 JM |
19 | |
20 | /* | |
b23b025f BG |
21 | * Tell our hardware to disable PS. |
22 | * Optionally inform AP that we will go to sleep so that it will buffer | |
23 | * the frames while we are doing off-channel work. This is optional | |
24 | * because we *may* be doing work on-operating channel, and want our | |
25 | * hardware unconditionally awake, but still let the AP send us normal frames. | |
b203ffc3 | 26 | */ |
559cef99 | 27 | static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata) |
b203ffc3 JM |
28 | { |
29 | struct ieee80211_local *local = sdata->local; | |
4730d597 | 30 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
b203ffc3 JM |
31 | |
32 | local->offchannel_ps_enabled = false; | |
33 | ||
34 | /* FIXME: what to do when local->pspolling is true? */ | |
35 | ||
36 | del_timer_sync(&local->dynamic_ps_timer); | |
3bc3c0d7 | 37 | del_timer_sync(&ifmgd->bcn_mon_timer); |
4730d597 LR |
38 | del_timer_sync(&ifmgd->conn_mon_timer); |
39 | ||
b203ffc3 JM |
40 | cancel_work_sync(&local->dynamic_ps_enable_work); |
41 | ||
42 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
43 | local->offchannel_ps_enabled = true; | |
44 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
45 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
46 | } | |
47 | ||
559cef99 RM |
48 | if (!local->offchannel_ps_enabled || |
49 | !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)) | |
b203ffc3 JM |
50 | /* |
51 | * If power save was enabled, no need to send a nullfunc | |
52 | * frame because AP knows that we are sleeping. But if the | |
53 | * hardware is creating the nullfunc frame for power save | |
54 | * status (ie. IEEE80211_HW_PS_NULLFUNC_STACK is not | |
55 | * enabled) and power save was enabled, the firmware just | |
56 | * sent a null frame with power save disabled. So we need | |
57 | * to send a new nullfunc frame to inform the AP that we | |
58 | * are again sleeping. | |
59 | */ | |
60 | ieee80211_send_nullfunc(local, sdata, 1); | |
61 | } | |
62 | ||
63 | /* inform AP that we are awake again, unless power save is enabled */ | |
64 | static void ieee80211_offchannel_ps_disable(struct ieee80211_sub_if_data *sdata) | |
65 | { | |
66 | struct ieee80211_local *local = sdata->local; | |
67 | ||
68 | if (!local->ps_sdata) | |
69 | ieee80211_send_nullfunc(local, sdata, 0); | |
70 | else if (local->offchannel_ps_enabled) { | |
71 | /* | |
72 | * In !IEEE80211_HW_PS_NULLFUNC_STACK case the hardware | |
73 | * will send a nullfunc frame with the powersave bit set | |
74 | * even though the AP already knows that we are sleeping. | |
75 | * This could be avoided by sending a null frame with power | |
76 | * save bit disabled before enabling the power save, but | |
77 | * this doesn't gain anything. | |
78 | * | |
79 | * When IEEE80211_HW_PS_NULLFUNC_STACK is enabled, no need | |
80 | * to send a nullfunc frame because AP already knows that | |
81 | * we are sleeping, let's just enable power save mode in | |
82 | * hardware. | |
83 | */ | |
b23b025f BG |
84 | /* TODO: Only set hardware if CONF_PS changed? |
85 | * TODO: Should we set offchannel_ps_enabled to false? | |
86 | */ | |
b203ffc3 JM |
87 | local->hw.conf.flags |= IEEE80211_CONF_PS; |
88 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
89 | } else if (local->hw.conf.dynamic_ps_timeout > 0) { | |
90 | /* | |
91 | * If IEEE80211_CONF_PS was not set and the dynamic_ps_timer | |
92 | * had been running before leaving the operating channel, | |
93 | * restart the timer now and send a nullfunc frame to inform | |
94 | * the AP that we are awake. | |
95 | */ | |
96 | ieee80211_send_nullfunc(local, sdata, 0); | |
97 | mod_timer(&local->dynamic_ps_timer, jiffies + | |
98 | msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout)); | |
99 | } | |
4730d597 | 100 | |
3bc3c0d7 | 101 | ieee80211_sta_reset_beacon_monitor(sdata); |
4730d597 | 102 | ieee80211_sta_reset_conn_monitor(sdata); |
b203ffc3 JM |
103 | } |
104 | ||
aacde9ee | 105 | void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local) |
b203ffc3 JM |
106 | { |
107 | struct ieee80211_sub_if_data *sdata; | |
108 | ||
fe57d9f5 JB |
109 | if (WARN_ON(local->use_chanctx)) |
110 | return; | |
111 | ||
b23b025f BG |
112 | /* |
113 | * notify the AP about us leaving the channel and stop all | |
114 | * STA interfaces. | |
115 | */ | |
6c17b77b | 116 | |
9c35d7d2 SF |
117 | /* |
118 | * Stop queues and transmit all frames queued by the driver | |
119 | * before sending nullfunc to enable powersave at the AP. | |
120 | */ | |
445ea4e8 | 121 | ieee80211_stop_queues_by_reason(&local->hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
122 | IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, |
123 | false); | |
3b24f4c6 | 124 | ieee80211_flush_queues(local, NULL, false); |
6c17b77b | 125 | |
b203ffc3 JM |
126 | mutex_lock(&local->iflist_mtx); |
127 | list_for_each_entry(sdata, &local->interfaces, list) { | |
128 | if (!ieee80211_sdata_running(sdata)) | |
129 | continue; | |
130 | ||
f142c6b9 JB |
131 | if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) |
132 | continue; | |
133 | ||
b23b025f BG |
134 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR) |
135 | set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state); | |
136 | ||
137 | /* Check to see if we should disable beaconing. */ | |
d6a83228 JB |
138 | if (sdata->vif.bss_conf.enable_beacon) { |
139 | set_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, | |
140 | &sdata->state); | |
141 | sdata->vif.bss_conf.enable_beacon = false; | |
b203ffc3 JM |
142 | ieee80211_bss_info_change_notify( |
143 | sdata, BSS_CHANGED_BEACON_ENABLED); | |
d6a83228 | 144 | } |
b203ffc3 | 145 | |
6c17b77b SF |
146 | if (sdata->vif.type == NL80211_IFTYPE_STATION && |
147 | sdata->u.mgd.associated) | |
148 | ieee80211_offchannel_ps_enable(sdata); | |
b203ffc3 JM |
149 | } |
150 | mutex_unlock(&local->iflist_mtx); | |
151 | } | |
152 | ||
aacde9ee | 153 | void ieee80211_offchannel_return(struct ieee80211_local *local) |
b203ffc3 JM |
154 | { |
155 | struct ieee80211_sub_if_data *sdata; | |
156 | ||
fe57d9f5 JB |
157 | if (WARN_ON(local->use_chanctx)) |
158 | return; | |
159 | ||
b203ffc3 JM |
160 | mutex_lock(&local->iflist_mtx); |
161 | list_for_each_entry(sdata, &local->interfaces, list) { | |
f142c6b9 JB |
162 | if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) |
163 | continue; | |
164 | ||
f6e8cb72 EP |
165 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR) |
166 | clear_bit(SDATA_STATE_OFFCHANNEL, &sdata->state); | |
167 | ||
b203ffc3 JM |
168 | if (!ieee80211_sdata_running(sdata)) |
169 | continue; | |
170 | ||
171 | /* Tell AP we're back */ | |
aacde9ee SG |
172 | if (sdata->vif.type == NL80211_IFTYPE_STATION && |
173 | sdata->u.mgd.associated) | |
174 | ieee80211_offchannel_ps_disable(sdata); | |
b203ffc3 | 175 | |
d6a83228 JB |
176 | if (test_and_clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, |
177 | &sdata->state)) { | |
178 | sdata->vif.bss_conf.enable_beacon = true; | |
b203ffc3 JM |
179 | ieee80211_bss_info_change_notify( |
180 | sdata, BSS_CHANGED_BEACON_ENABLED); | |
d6a83228 | 181 | } |
b203ffc3 JM |
182 | } |
183 | mutex_unlock(&local->iflist_mtx); | |
6c17b77b | 184 | |
445ea4e8 | 185 | ieee80211_wake_queues_by_reason(&local->hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
186 | IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, |
187 | false); | |
b203ffc3 | 188 | } |
21f83589 | 189 | |
2eb278e0 JB |
190 | void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc) |
191 | { | |
192 | if (roc->notified) | |
193 | return; | |
194 | ||
195 | if (roc->mgmt_tx_cookie) { | |
196 | if (!WARN_ON(!roc->frame)) { | |
55de908a JB |
197 | ieee80211_tx_skb_tid_band(roc->sdata, roc->frame, 7, |
198 | roc->chan->band); | |
2eb278e0 JB |
199 | roc->frame = NULL; |
200 | } | |
201 | } else { | |
50febf6a | 202 | cfg80211_ready_on_channel(&roc->sdata->wdev, roc->cookie, |
42d97a59 JB |
203 | roc->chan, roc->req_duration, |
204 | GFP_KERNEL); | |
2eb278e0 JB |
205 | } |
206 | ||
207 | roc->notified = true; | |
208 | } | |
209 | ||
21f83589 JB |
210 | static void ieee80211_hw_roc_start(struct work_struct *work) |
211 | { | |
212 | struct ieee80211_local *local = | |
213 | container_of(work, struct ieee80211_local, hw_roc_start); | |
2eb278e0 | 214 | struct ieee80211_roc_work *roc, *dep, *tmp; |
21f83589 JB |
215 | |
216 | mutex_lock(&local->mtx); | |
217 | ||
2eb278e0 JB |
218 | if (list_empty(&local->roc_list)) |
219 | goto out_unlock; | |
21f83589 | 220 | |
2eb278e0 JB |
221 | roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, |
222 | list); | |
223 | ||
224 | if (!roc->started) | |
225 | goto out_unlock; | |
226 | ||
227 | roc->hw_begun = true; | |
228 | roc->hw_start_time = local->hw_roc_start_time; | |
90fc4b3a | 229 | |
2eb278e0 JB |
230 | ieee80211_handle_roc_started(roc); |
231 | list_for_each_entry_safe(dep, tmp, &roc->dependents, list) { | |
232 | ieee80211_handle_roc_started(dep); | |
233 | ||
234 | if (dep->duration > roc->duration) { | |
235 | u32 dur = dep->duration; | |
236 | dep->duration = dur - roc->duration; | |
237 | roc->duration = dur; | |
a4ed5346 | 238 | list_move(&dep->list, &roc->list); |
2eb278e0 JB |
239 | } |
240 | } | |
241 | out_unlock: | |
21f83589 JB |
242 | mutex_unlock(&local->mtx); |
243 | } | |
244 | ||
245 | void ieee80211_ready_on_channel(struct ieee80211_hw *hw) | |
246 | { | |
247 | struct ieee80211_local *local = hw_to_local(hw); | |
248 | ||
2eb278e0 JB |
249 | local->hw_roc_start_time = jiffies; |
250 | ||
21f83589 JB |
251 | trace_api_ready_on_channel(local); |
252 | ||
253 | ieee80211_queue_work(hw, &local->hw_roc_start); | |
254 | } | |
255 | EXPORT_SYMBOL_GPL(ieee80211_ready_on_channel); | |
256 | ||
2eb278e0 | 257 | void ieee80211_start_next_roc(struct ieee80211_local *local) |
21f83589 | 258 | { |
2eb278e0 | 259 | struct ieee80211_roc_work *roc; |
21f83589 | 260 | |
2eb278e0 | 261 | lockdep_assert_held(&local->mtx); |
21f83589 | 262 | |
2eb278e0 JB |
263 | if (list_empty(&local->roc_list)) { |
264 | ieee80211_run_deferred_scan(local); | |
21f83589 JB |
265 | return; |
266 | } | |
267 | ||
2eb278e0 JB |
268 | roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, |
269 | list); | |
71ecfa18 | 270 | |
0f6b3f59 JB |
271 | if (WARN_ON_ONCE(roc->started)) |
272 | return; | |
273 | ||
2eb278e0 JB |
274 | if (local->ops->remain_on_channel) { |
275 | int ret, duration = roc->duration; | |
71ecfa18 | 276 | |
2eb278e0 JB |
277 | /* XXX: duplicated, see ieee80211_start_roc_work() */ |
278 | if (!duration) | |
279 | duration = 10; | |
71ecfa18 | 280 | |
49884568 | 281 | ret = drv_remain_on_channel(local, roc->sdata, roc->chan, |
d339d5ca | 282 | duration, roc->type); |
2eb278e0 JB |
283 | |
284 | roc->started = true; | |
285 | ||
286 | if (ret) { | |
287 | wiphy_warn(local->hw.wiphy, | |
288 | "failed to start next HW ROC (%d)\n", ret); | |
289 | /* | |
290 | * queue the work struct again to avoid recursion | |
291 | * when multiple failures occur | |
292 | */ | |
293 | ieee80211_remain_on_channel_expired(&local->hw); | |
294 | } | |
295 | } else { | |
296 | /* delay it a bit */ | |
297 | ieee80211_queue_delayed_work(&local->hw, &roc->work, | |
298 | round_jiffies_relative(HZ/2)); | |
299 | } | |
300 | } | |
301 | ||
3fbd45ca | 302 | void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free) |
2eb278e0 JB |
303 | { |
304 | struct ieee80211_roc_work *dep, *tmp; | |
305 | ||
3fbd45ca JB |
306 | if (WARN_ON(roc->to_be_freed)) |
307 | return; | |
308 | ||
2eb278e0 JB |
309 | /* was never transmitted */ |
310 | if (roc->frame) { | |
71bbc994 | 311 | cfg80211_mgmt_tx_status(&roc->sdata->wdev, |
2eb278e0 JB |
312 | (unsigned long)roc->frame, |
313 | roc->frame->data, roc->frame->len, | |
314 | false, GFP_KERNEL); | |
315 | kfree_skb(roc->frame); | |
71ecfa18 JB |
316 | } |
317 | ||
2eb278e0 | 318 | if (!roc->mgmt_tx_cookie) |
71bbc994 | 319 | cfg80211_remain_on_channel_expired(&roc->sdata->wdev, |
50febf6a | 320 | roc->cookie, roc->chan, |
42d97a59 | 321 | GFP_KERNEL); |
21f83589 | 322 | |
2eb278e0 | 323 | list_for_each_entry_safe(dep, tmp, &roc->dependents, list) |
3fbd45ca | 324 | ieee80211_roc_notify_destroy(dep, true); |
2eb278e0 | 325 | |
3fbd45ca JB |
326 | if (free) |
327 | kfree(roc); | |
328 | else | |
329 | roc->to_be_freed = true; | |
2eb278e0 JB |
330 | } |
331 | ||
332 | void ieee80211_sw_roc_work(struct work_struct *work) | |
333 | { | |
334 | struct ieee80211_roc_work *roc = | |
335 | container_of(work, struct ieee80211_roc_work, work.work); | |
336 | struct ieee80211_sub_if_data *sdata = roc->sdata; | |
337 | struct ieee80211_local *local = sdata->local; | |
b4b177a5 | 338 | bool started, on_channel; |
2eb278e0 JB |
339 | |
340 | mutex_lock(&local->mtx); | |
341 | ||
3fbd45ca JB |
342 | if (roc->to_be_freed) |
343 | goto out_unlock; | |
344 | ||
2eb278e0 JB |
345 | if (roc->abort) |
346 | goto finish; | |
347 | ||
348 | if (WARN_ON(list_empty(&local->roc_list))) | |
349 | goto out_unlock; | |
350 | ||
351 | if (WARN_ON(roc != list_first_entry(&local->roc_list, | |
352 | struct ieee80211_roc_work, | |
353 | list))) | |
354 | goto out_unlock; | |
355 | ||
356 | if (!roc->started) { | |
357 | struct ieee80211_roc_work *dep; | |
358 | ||
b4b177a5 JB |
359 | WARN_ON(local->use_chanctx); |
360 | ||
361 | /* If actually operating on the desired channel (with at least | |
362 | * 20 MHz channel width) don't stop all the operations but still | |
363 | * treat it as though the ROC operation started properly, so | |
364 | * other ROC operations won't interfere with this one. | |
365 | */ | |
366 | roc->on_channel = roc->chan == local->_oper_chandef.chan && | |
367 | local->_oper_chandef.width != NL80211_CHAN_WIDTH_5 && | |
368 | local->_oper_chandef.width != NL80211_CHAN_WIDTH_10; | |
21f83589 | 369 | |
b4b177a5 | 370 | /* start this ROC */ |
2eb278e0 JB |
371 | ieee80211_recalc_idle(local); |
372 | ||
b4b177a5 JB |
373 | if (!roc->on_channel) { |
374 | ieee80211_offchannel_stop_vifs(local); | |
375 | ||
376 | local->tmp_channel = roc->chan; | |
377 | ieee80211_hw_config(local, 0); | |
378 | } | |
2eb278e0 JB |
379 | |
380 | /* tell userspace or send frame */ | |
381 | ieee80211_handle_roc_started(roc); | |
382 | list_for_each_entry(dep, &roc->dependents, list) | |
383 | ieee80211_handle_roc_started(dep); | |
384 | ||
385 | /* if it was pure TX, just finish right away */ | |
386 | if (!roc->duration) | |
387 | goto finish; | |
388 | ||
389 | roc->started = true; | |
390 | ieee80211_queue_delayed_work(&local->hw, &roc->work, | |
391 | msecs_to_jiffies(roc->duration)); | |
392 | } else { | |
393 | /* finish this ROC */ | |
394 | finish: | |
395 | list_del(&roc->list); | |
4b4b8229 | 396 | started = roc->started; |
b4b177a5 | 397 | on_channel = roc->on_channel; |
3fbd45ca | 398 | ieee80211_roc_notify_destroy(roc, !roc->abort); |
2eb278e0 | 399 | |
b4b177a5 | 400 | if (started && !on_channel) { |
3b24f4c6 | 401 | ieee80211_flush_queues(local, NULL, false); |
2eb278e0 JB |
402 | |
403 | local->tmp_channel = NULL; | |
404 | ieee80211_hw_config(local, 0); | |
405 | ||
aacde9ee | 406 | ieee80211_offchannel_return(local); |
2eb278e0 JB |
407 | } |
408 | ||
409 | ieee80211_recalc_idle(local); | |
410 | ||
4b4b8229 | 411 | if (started) |
0f6b3f59 | 412 | ieee80211_start_next_roc(local); |
22c4ceed JM |
413 | else if (list_empty(&local->roc_list)) |
414 | ieee80211_run_deferred_scan(local); | |
2eb278e0 JB |
415 | } |
416 | ||
417 | out_unlock: | |
418 | mutex_unlock(&local->mtx); | |
419 | } | |
420 | ||
421 | static void ieee80211_hw_roc_done(struct work_struct *work) | |
422 | { | |
423 | struct ieee80211_local *local = | |
424 | container_of(work, struct ieee80211_local, hw_roc_done); | |
425 | struct ieee80211_roc_work *roc; | |
426 | ||
427 | mutex_lock(&local->mtx); | |
428 | ||
429 | if (list_empty(&local->roc_list)) | |
430 | goto out_unlock; | |
431 | ||
432 | roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, | |
433 | list); | |
434 | ||
435 | if (!roc->started) | |
436 | goto out_unlock; | |
437 | ||
438 | list_del(&roc->list); | |
439 | ||
3fbd45ca | 440 | ieee80211_roc_notify_destroy(roc, true); |
2eb278e0 JB |
441 | |
442 | /* if there's another roc, start it now */ | |
443 | ieee80211_start_next_roc(local); | |
444 | ||
2eb278e0 | 445 | out_unlock: |
21f83589 JB |
446 | mutex_unlock(&local->mtx); |
447 | } | |
448 | ||
449 | void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw) | |
450 | { | |
451 | struct ieee80211_local *local = hw_to_local(hw); | |
452 | ||
453 | trace_api_remain_on_channel_expired(local); | |
454 | ||
455 | ieee80211_queue_work(hw, &local->hw_roc_done); | |
456 | } | |
457 | EXPORT_SYMBOL_GPL(ieee80211_remain_on_channel_expired); | |
458 | ||
2eb278e0 | 459 | void ieee80211_roc_setup(struct ieee80211_local *local) |
21f83589 JB |
460 | { |
461 | INIT_WORK(&local->hw_roc_start, ieee80211_hw_roc_start); | |
462 | INIT_WORK(&local->hw_roc_done, ieee80211_hw_roc_done); | |
2eb278e0 JB |
463 | INIT_LIST_HEAD(&local->roc_list); |
464 | } | |
465 | ||
c8f994ee JB |
466 | void ieee80211_roc_purge(struct ieee80211_local *local, |
467 | struct ieee80211_sub_if_data *sdata) | |
2eb278e0 | 468 | { |
2eb278e0 JB |
469 | struct ieee80211_roc_work *roc, *tmp; |
470 | LIST_HEAD(tmp_list); | |
471 | ||
472 | mutex_lock(&local->mtx); | |
473 | list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { | |
c8f994ee | 474 | if (sdata && roc->sdata != sdata) |
2eb278e0 JB |
475 | continue; |
476 | ||
477 | if (roc->started && local->ops->remain_on_channel) { | |
478 | /* can race, so ignore return value */ | |
479 | drv_cancel_remain_on_channel(local); | |
480 | } | |
481 | ||
482 | list_move_tail(&roc->list, &tmp_list); | |
483 | roc->abort = true; | |
484 | } | |
2eb278e0 JB |
485 | mutex_unlock(&local->mtx); |
486 | ||
487 | list_for_each_entry_safe(roc, tmp, &tmp_list, list) { | |
488 | if (local->ops->remain_on_channel) { | |
489 | list_del(&roc->list); | |
3fbd45ca | 490 | ieee80211_roc_notify_destroy(roc, true); |
2eb278e0 JB |
491 | } else { |
492 | ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); | |
493 | ||
494 | /* work will clean up etc */ | |
495 | flush_delayed_work(&roc->work); | |
3fbd45ca JB |
496 | WARN_ON(!roc->to_be_freed); |
497 | kfree(roc); | |
2eb278e0 JB |
498 | } |
499 | } | |
500 | ||
501 | WARN_ON_ONCE(!list_empty(&tmp_list)); | |
21f83589 | 502 | } |