net/mac80211/vht.c

   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"
  13
  14
  15 void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
  16                                          struct ieee80211_supported_band *sband,
  17                                          struct ieee80211_vht_cap *vht_cap_ie,
  18                                          struct ieee80211_sta_vht_cap *vht_cap)
  19 {
  20         if (WARN_ON_ONCE(!vht_cap))
  21                 return;
  22
  23         memset(vht_cap, 0, sizeof(*vht_cap));
  24
  25         if (!vht_cap_ie || !sband->vht_cap.vht_supported)
  26                 return;
  27
  28         vht_cap->vht_supported = true;
  29
  30         vht_cap->cap = le32_to_cpu(vht_cap_ie->vht_cap_info);
  31
  32         /* Copy peer MCS info, the driver might need them. */
  33         memcpy(&vht_cap->vht_mcs, &vht_cap_ie->supp_mcs,
  34                sizeof(struct ieee80211_vht_mcs_info));
  35 }