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Commit | Line | Data |
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818255ea MP |
1 | /* |
2 | * VHT handling | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #include <linux/ieee80211.h> | |
10 | #include <linux/export.h> | |
11 | #include <net/mac80211.h> | |
12 | #include "ieee80211_i.h" | |
0af83d3d | 13 | #include "rate.h" |
818255ea MP |
14 | |
15 | ||
dd5ecfea JB |
16 | static void __check_vhtcap_disable(struct ieee80211_sub_if_data *sdata, |
17 | struct ieee80211_sta_vht_cap *vht_cap, | |
18 | u32 flag) | |
19 | { | |
20 | __le32 le_flag = cpu_to_le32(flag); | |
21 | ||
22 | if (sdata->u.mgd.vht_capa_mask.vht_cap_info & le_flag && | |
23 | !(sdata->u.mgd.vht_capa.vht_cap_info & le_flag)) | |
24 | vht_cap->cap &= ~flag; | |
25 | } | |
26 | ||
27 | void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, | |
28 | struct ieee80211_sta_vht_cap *vht_cap) | |
29 | { | |
30 | int i; | |
31 | u16 rxmcs_mask, rxmcs_cap, rxmcs_n, txmcs_mask, txmcs_cap, txmcs_n; | |
32 | ||
33 | if (!vht_cap->vht_supported) | |
34 | return; | |
35 | ||
36 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
37 | return; | |
38 | ||
39 | __check_vhtcap_disable(sdata, vht_cap, | |
40 | IEEE80211_VHT_CAP_RXLDPC); | |
41 | __check_vhtcap_disable(sdata, vht_cap, | |
42 | IEEE80211_VHT_CAP_SHORT_GI_80); | |
43 | __check_vhtcap_disable(sdata, vht_cap, | |
44 | IEEE80211_VHT_CAP_SHORT_GI_160); | |
45 | __check_vhtcap_disable(sdata, vht_cap, | |
46 | IEEE80211_VHT_CAP_TXSTBC); | |
47 | __check_vhtcap_disable(sdata, vht_cap, | |
48 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); | |
49 | __check_vhtcap_disable(sdata, vht_cap, | |
50 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); | |
51 | __check_vhtcap_disable(sdata, vht_cap, | |
52 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN); | |
53 | __check_vhtcap_disable(sdata, vht_cap, | |
54 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN); | |
55 | ||
56 | /* Allow user to decrease AMPDU length exponent */ | |
57 | if (sdata->u.mgd.vht_capa_mask.vht_cap_info & | |
58 | cpu_to_le32(IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK)) { | |
59 | u32 cap, n; | |
60 | ||
61 | n = le32_to_cpu(sdata->u.mgd.vht_capa.vht_cap_info) & | |
62 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
63 | n >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
64 | cap = vht_cap->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
65 | cap >>= IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
66 | ||
67 | if (n < cap) { | |
68 | vht_cap->cap &= | |
69 | ~IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
70 | vht_cap->cap |= | |
71 | n << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
72 | } | |
73 | } | |
74 | ||
75 | /* Allow the user to decrease MCSes */ | |
76 | rxmcs_mask = | |
77 | le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.rx_mcs_map); | |
78 | rxmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.rx_mcs_map); | |
79 | rxmcs_n &= rxmcs_mask; | |
80 | rxmcs_cap = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map); | |
81 | ||
82 | txmcs_mask = | |
83 | le16_to_cpu(sdata->u.mgd.vht_capa_mask.supp_mcs.tx_mcs_map); | |
84 | txmcs_n = le16_to_cpu(sdata->u.mgd.vht_capa.supp_mcs.tx_mcs_map); | |
85 | txmcs_n &= txmcs_mask; | |
86 | txmcs_cap = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map); | |
87 | for (i = 0; i < 8; i++) { | |
88 | u8 m, n, c; | |
89 | ||
90 | m = (rxmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
91 | n = (rxmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
92 | c = (rxmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
93 | ||
94 | if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) || | |
95 | n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) { | |
96 | rxmcs_cap &= ~(3 << 2*i); | |
97 | rxmcs_cap |= (rxmcs_n & (3 << 2*i)); | |
98 | } | |
99 | ||
100 | m = (txmcs_mask >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
101 | n = (txmcs_n >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
102 | c = (txmcs_cap >> 2*i) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
103 | ||
104 | if (m && ((c != IEEE80211_VHT_MCS_NOT_SUPPORTED && n < c) || | |
105 | n == IEEE80211_VHT_MCS_NOT_SUPPORTED)) { | |
106 | txmcs_cap &= ~(3 << 2*i); | |
107 | txmcs_cap |= (txmcs_n & (3 << 2*i)); | |
108 | } | |
109 | } | |
110 | vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(rxmcs_cap); | |
111 | vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(txmcs_cap); | |
112 | } | |
113 | ||
4a3cb702 JB |
114 | void |
115 | ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, | |
116 | struct ieee80211_supported_band *sband, | |
117 | const struct ieee80211_vht_cap *vht_cap_ie, | |
118 | struct sta_info *sta) | |
818255ea | 119 | { |
4a34215e | 120 | struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap; |
55d942f4 JB |
121 | struct ieee80211_sta_vht_cap own_cap; |
122 | u32 cap_info, i; | |
818255ea MP |
123 | |
124 | memset(vht_cap, 0, sizeof(*vht_cap)); | |
125 | ||
4a34215e JB |
126 | if (!sta->sta.ht_cap.ht_supported) |
127 | return; | |
128 | ||
818255ea MP |
129 | if (!vht_cap_ie || !sband->vht_cap.vht_supported) |
130 | return; | |
131 | ||
e1a0c6b3 JB |
132 | /* A VHT STA must support 40 MHz */ |
133 | if (!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) | |
134 | return; | |
135 | ||
818255ea MP |
136 | vht_cap->vht_supported = true; |
137 | ||
55d942f4 JB |
138 | own_cap = sband->vht_cap; |
139 | /* | |
140 | * If user has specified capability overrides, take care | |
141 | * of that if the station we're setting up is the AP that | |
142 | * we advertised a restricted capability set to. Override | |
143 | * our own capabilities and then use those below. | |
144 | */ | |
145 | if (sdata->vif.type == NL80211_IFTYPE_STATION && | |
146 | !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) | |
147 | ieee80211_apply_vhtcap_overrides(sdata, &own_cap); | |
148 | ||
149 | /* take some capabilities as-is */ | |
150 | cap_info = le32_to_cpu(vht_cap_ie->vht_cap_info); | |
151 | vht_cap->cap = cap_info; | |
152 | vht_cap->cap &= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 | | |
153 | IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | | |
154 | IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | | |
155 | IEEE80211_VHT_CAP_RXLDPC | | |
156 | IEEE80211_VHT_CAP_VHT_TXOP_PS | | |
157 | IEEE80211_VHT_CAP_HTC_VHT | | |
158 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | | |
159 | IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB | | |
160 | IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB | | |
161 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
162 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN; | |
163 | ||
164 | /* and some based on our own capabilities */ | |
165 | switch (own_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { | |
166 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: | |
167 | vht_cap->cap |= cap_info & | |
168 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; | |
169 | break; | |
170 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: | |
171 | vht_cap->cap |= cap_info & | |
172 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
173 | break; | |
174 | default: | |
175 | /* nothing */ | |
176 | break; | |
177 | } | |
178 | ||
179 | /* symmetric capabilities */ | |
180 | vht_cap->cap |= cap_info & own_cap.cap & | |
181 | (IEEE80211_VHT_CAP_SHORT_GI_80 | | |
182 | IEEE80211_VHT_CAP_SHORT_GI_160); | |
183 | ||
184 | /* remaining ones */ | |
185 | if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) { | |
186 | vht_cap->cap |= cap_info & | |
187 | (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
188 | IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX | | |
189 | IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX); | |
190 | } | |
191 | ||
192 | if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE) | |
193 | vht_cap->cap |= cap_info & | |
194 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; | |
195 | ||
196 | if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE) | |
197 | vht_cap->cap |= cap_info & | |
198 | IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
199 | ||
200 | if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) | |
201 | vht_cap->cap |= cap_info & | |
202 | IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; | |
203 | ||
204 | if (own_cap.cap & IEEE80211_VHT_CAP_TXSTBC) | |
205 | vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_RXSTBC_MASK; | |
206 | ||
207 | if (own_cap.cap & IEEE80211_VHT_CAP_RXSTBC_MASK) | |
208 | vht_cap->cap |= cap_info & IEEE80211_VHT_CAP_TXSTBC; | |
818255ea MP |
209 | |
210 | /* Copy peer MCS info, the driver might need them. */ | |
211 | memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs, | |
212 | sizeof(struct ieee80211_vht_mcs_info)); | |
e1a0c6b3 | 213 | |
55d942f4 JB |
214 | /* but also restrict MCSes */ |
215 | for (i = 0; i < 8; i++) { | |
216 | u16 own_rx, own_tx, peer_rx, peer_tx; | |
217 | ||
218 | own_rx = le16_to_cpu(own_cap.vht_mcs.rx_mcs_map); | |
219 | own_rx = (own_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
220 | ||
221 | own_tx = le16_to_cpu(own_cap.vht_mcs.tx_mcs_map); | |
222 | own_tx = (own_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
223 | ||
224 | peer_rx = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map); | |
225 | peer_rx = (peer_rx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
226 | ||
227 | peer_tx = le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map); | |
228 | peer_tx = (peer_tx >> i * 2) & IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
229 | ||
230 | if (peer_tx != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
231 | if (own_rx == IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
232 | peer_tx = IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
233 | else if (own_rx < peer_tx) | |
234 | peer_tx = own_rx; | |
235 | } | |
236 | ||
237 | if (peer_rx != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
238 | if (own_tx == IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
239 | peer_rx = IEEE80211_VHT_MCS_NOT_SUPPORTED; | |
240 | else if (own_tx < peer_rx) | |
241 | peer_rx = own_tx; | |
242 | } | |
243 | ||
244 | vht_cap->vht_mcs.rx_mcs_map &= | |
245 | ~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2); | |
246 | vht_cap->vht_mcs.rx_mcs_map |= cpu_to_le16(peer_rx << i * 2); | |
247 | ||
248 | vht_cap->vht_mcs.tx_mcs_map &= | |
249 | ~cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << i * 2); | |
250 | vht_cap->vht_mcs.tx_mcs_map |= cpu_to_le16(peer_tx << i * 2); | |
251 | } | |
252 | ||
253 | /* finally set up the bandwidth */ | |
0af83d3d JB |
254 | switch (vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { |
255 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: | |
256 | case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: | |
257 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160; | |
258 | break; | |
259 | default: | |
260 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80; | |
261 | } | |
262 | ||
e1a0c6b3 JB |
263 | sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta); |
264 | } | |
265 | ||
266 | enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta) | |
267 | { | |
268 | struct ieee80211_sub_if_data *sdata = sta->sdata; | |
269 | u32 cap = sta->sta.vht_cap.cap; | |
0af83d3d | 270 | enum ieee80211_sta_rx_bandwidth bw; |
e1a0c6b3 | 271 | |
0af83d3d JB |
272 | if (!sta->sta.vht_cap.vht_supported) { |
273 | bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? | |
e1a0c6b3 | 274 | IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20; |
0af83d3d JB |
275 | goto check_max; |
276 | } | |
e1a0c6b3 JB |
277 | |
278 | switch (sdata->vif.bss_conf.chandef.width) { | |
279 | default: | |
280 | WARN_ON_ONCE(1); | |
281 | /* fall through */ | |
282 | case NL80211_CHAN_WIDTH_20_NOHT: | |
283 | case NL80211_CHAN_WIDTH_20: | |
284 | case NL80211_CHAN_WIDTH_40: | |
0af83d3d | 285 | bw = sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? |
e1a0c6b3 | 286 | IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20; |
0af83d3d | 287 | break; |
e1a0c6b3 | 288 | case NL80211_CHAN_WIDTH_160: |
0af83d3d JB |
289 | if ((cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) == |
290 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ) { | |
291 | bw = IEEE80211_STA_RX_BW_160; | |
292 | break; | |
293 | } | |
e1a0c6b3 JB |
294 | /* fall through */ |
295 | case NL80211_CHAN_WIDTH_80P80: | |
0af83d3d JB |
296 | if ((cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) == |
297 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) { | |
298 | bw = IEEE80211_STA_RX_BW_160; | |
299 | break; | |
300 | } | |
e1a0c6b3 JB |
301 | /* fall through */ |
302 | case NL80211_CHAN_WIDTH_80: | |
0af83d3d | 303 | bw = IEEE80211_STA_RX_BW_80; |
e1a0c6b3 | 304 | } |
0af83d3d JB |
305 | |
306 | check_max: | |
307 | if (bw > sta->cur_max_bandwidth) | |
308 | bw = sta->cur_max_bandwidth; | |
309 | return bw; | |
818255ea | 310 | } |
8921d04e JB |
311 | |
312 | void ieee80211_sta_set_rx_nss(struct sta_info *sta) | |
313 | { | |
314 | u8 ht_rx_nss = 0, vht_rx_nss = 0; | |
315 | ||
316 | /* if we received a notification already don't overwrite it */ | |
317 | if (sta->sta.rx_nss) | |
318 | return; | |
319 | ||
320 | if (sta->sta.ht_cap.ht_supported) { | |
321 | if (sta->sta.ht_cap.mcs.rx_mask[0]) | |
322 | ht_rx_nss++; | |
323 | if (sta->sta.ht_cap.mcs.rx_mask[1]) | |
324 | ht_rx_nss++; | |
325 | if (sta->sta.ht_cap.mcs.rx_mask[2]) | |
326 | ht_rx_nss++; | |
327 | if (sta->sta.ht_cap.mcs.rx_mask[3]) | |
328 | ht_rx_nss++; | |
329 | /* FIXME: consider rx_highest? */ | |
330 | } | |
331 | ||
332 | if (sta->sta.vht_cap.vht_supported) { | |
333 | int i; | |
334 | u16 rx_mcs_map; | |
335 | ||
336 | rx_mcs_map = le16_to_cpu(sta->sta.vht_cap.vht_mcs.rx_mcs_map); | |
337 | ||
338 | for (i = 7; i >= 0; i--) { | |
339 | u8 mcs = (rx_mcs_map >> (2 * i)) & 3; | |
340 | ||
341 | if (mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
342 | vht_rx_nss = i + 1; | |
343 | break; | |
344 | } | |
345 | } | |
346 | /* FIXME: consider rx_highest? */ | |
347 | } | |
348 | ||
349 | ht_rx_nss = max(ht_rx_nss, vht_rx_nss); | |
350 | sta->sta.rx_nss = max_t(u8, 1, ht_rx_nss); | |
351 | } | |
0af83d3d JB |
352 | |
353 | void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, | |
354 | struct sta_info *sta, u8 opmode, | |
bee7f586 | 355 | enum ieee80211_band band, bool nss_only) |
0af83d3d JB |
356 | { |
357 | struct ieee80211_local *local = sdata->local; | |
358 | struct ieee80211_supported_band *sband; | |
359 | enum ieee80211_sta_rx_bandwidth new_bw; | |
360 | u32 changed = 0; | |
361 | u8 nss; | |
362 | ||
363 | sband = local->hw.wiphy->bands[band]; | |
364 | ||
365 | /* ignore - no support for BF yet */ | |
366 | if (opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF) | |
367 | return; | |
368 | ||
369 | nss = opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; | |
370 | nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; | |
371 | nss += 1; | |
372 | ||
373 | if (sta->sta.rx_nss != nss) { | |
374 | sta->sta.rx_nss = nss; | |
375 | changed |= IEEE80211_RC_NSS_CHANGED; | |
376 | } | |
377 | ||
bee7f586 JB |
378 | if (nss_only) |
379 | goto change; | |
380 | ||
0af83d3d JB |
381 | switch (opmode & IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK) { |
382 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: | |
383 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_20; | |
384 | break; | |
385 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: | |
386 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_40; | |
387 | break; | |
388 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: | |
389 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80; | |
390 | break; | |
391 | case IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: | |
392 | sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160; | |
393 | break; | |
394 | } | |
395 | ||
396 | new_bw = ieee80211_sta_cur_vht_bw(sta); | |
397 | if (new_bw != sta->sta.bandwidth) { | |
398 | sta->sta.bandwidth = new_bw; | |
38745c74 | 399 | changed |= IEEE80211_RC_BW_CHANGED; |
0af83d3d JB |
400 | } |
401 | ||
bee7f586 | 402 | change: |
0af83d3d JB |
403 | if (changed) |
404 | rate_control_rate_update(local, sband, sta, changed); | |
405 | } |