]> Pileus Git - ~andy/linux/blobdiff - net/mac80211/ieee80211_sta.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[~andy/linux] / net / mac80211 / ieee80211_sta.c
index f1edaa0c0da376daae20f588c1871470a6d6b7d4..2019b4f0528d8f063e94e3bdcc6450b854765e60 100644 (file)
@@ -63,6 +63,8 @@
 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
+#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
+#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 
 /* next values represent the buffer size for A-MPDU frame.
  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */
@@ -311,48 +313,42 @@ static void ieee80211_sta_wmm_params(struct net_device *dev,
 }
 
 
-static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value)
+static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
+                                  u8 erp_value)
 {
-       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+       struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
        struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-       int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
-       int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
-       u8 changes = 0;
+       bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
+       bool preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
        DECLARE_MAC_BUF(mac);
+       u32 changed = 0;
 
-       if (use_protection != !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION)) {
+       if (use_protection != bss_conf->use_cts_prot) {
                if (net_ratelimit()) {
                        printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
                               "%s)\n",
-                              dev->name,
+                              sdata->dev->name,
                               use_protection ? "enabled" : "disabled",
                               print_mac(mac, ifsta->bssid));
                }
-               if (use_protection)
-                       sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
-               else
-                       sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
-               changes |= IEEE80211_ERP_CHANGE_PROTECTION;
+               bss_conf->use_cts_prot = use_protection;
+               changed |= BSS_CHANGED_ERP_CTS_PROT;
        }
 
-       if (preamble_mode != !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE)) {
+       if (preamble_mode != bss_conf->use_short_preamble) {
                if (net_ratelimit()) {
                        printk(KERN_DEBUG "%s: switched to %s barker preamble"
                               " (BSSID=%s)\n",
-                              dev->name,
+                              sdata->dev->name,
                               (preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
                                        "short" : "long",
                               print_mac(mac, ifsta->bssid));
                }
-               if (preamble_mode)
-                       sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
-               else
-                       sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
-               changes |= IEEE80211_ERP_CHANGE_PREAMBLE;
+               bss_conf->use_short_preamble = preamble_mode;
+               changed |= BSS_CHANGED_ERP_PREAMBLE;
        }
 
-       if (changes)
-               ieee80211_erp_info_change_notify(dev, changes);
+       return changed;
 }
 
 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
@@ -456,20 +452,17 @@ static void ieee80211_set_associated(struct net_device *dev,
                                     struct ieee80211_if_sta *ifsta,
                                     bool assoc)
 {
-       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+       struct ieee80211_local *local = sdata->local;
        union iwreq_data wrqu;
-
-       if (!!(ifsta->flags & IEEE80211_STA_ASSOCIATED) == assoc)
-               return;
+       u32 changed = BSS_CHANGED_ASSOC;
 
        if (assoc) {
-               struct ieee80211_sub_if_data *sdata;
                struct ieee80211_sta_bss *bss;
 
                ifsta->flags |= IEEE80211_STA_ASSOCIATED;
 
-               sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-               if (sdata->type != IEEE80211_IF_TYPE_STA)
+               if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
                        return;
 
                bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
@@ -477,7 +470,8 @@ static void ieee80211_set_associated(struct net_device *dev,
                                           ifsta->ssid, ifsta->ssid_len);
                if (bss) {
                        if (bss->has_erp_value)
-                               ieee80211_handle_erp_ie(dev, bss->erp_value);
+                               changed |= ieee80211_handle_erp_ie(
+                                               sdata, bss->erp_value);
                        ieee80211_rx_bss_put(dev, bss);
                }
 
@@ -497,6 +491,8 @@ static void ieee80211_set_associated(struct net_device *dev,
        wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
        ifsta->last_probe = jiffies;
        ieee80211_led_assoc(local, assoc);
+
+       ieee80211_bss_info_change_notify(sdata, changed);
 }
 
 static void ieee80211_set_disassoc(struct net_device *dev,
@@ -1023,7 +1019,7 @@ static void ieee80211_send_addba_resp(struct net_device *dev, u8 *da, u16 tid,
        memset(mgmt, 0, 24);
        memcpy(mgmt->da, da, ETH_ALEN);
        memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
-       if (sdata->type == IEEE80211_IF_TYPE_AP)
+       if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
                memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
        else
                memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
@@ -1158,8 +1154,8 @@ end_no_lock:
        sta_info_put(sta);
 }
 
-void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
-                               u16 initiator, u16 reason_code)
+static void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
+                                u16 initiator, u16 reason_code)
 {
        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -1182,7 +1178,7 @@ void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
        memset(mgmt, 0, 24);
        memcpy(mgmt->da, da, ETH_ALEN);
        memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
-       if (sdata->type == IEEE80211_IF_TYPE_AP)
+       if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
                memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
        else
                memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
@@ -1219,9 +1215,6 @@ void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid,
        if (sta->ampdu_mlme.tid_rx[tid].state
                                != HT_AGG_STATE_OPERATIONAL) {
                spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
-               if (net_ratelimit())
-                       printk(KERN_DEBUG "rx BA session requested to stop on "
-                               "inactive tid %d\n", tid);
                sta_info_put(sta);
                return;
        }
@@ -1264,6 +1257,36 @@ void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid,
        sta_info_put(sta);
 }
 
+static void ieee80211_sta_process_delba(struct net_device *dev,
+                       struct ieee80211_mgmt *mgmt, size_t len)
+{
+       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+       struct sta_info *sta;
+       u16 tid, params;
+       u16 initiator;
+       DECLARE_MAC_BUF(mac);
+
+       sta = sta_info_get(local, mgmt->sa);
+       if (!sta)
+               return;
+
+       params = le16_to_cpu(mgmt->u.action.u.delba.params);
+       tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
+       initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+       if (net_ratelimit())
+               printk(KERN_DEBUG "delba from %s on tid %d reason code %d\n",
+                       print_mac(mac, mgmt->sa), tid,
+                       mgmt->u.action.u.delba.reason_code);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+       if (initiator == WLAN_BACK_INITIATOR)
+               ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid,
+                                                WLAN_BACK_INITIATOR, 0);
+       sta_info_put(sta);
+}
+
 /*
  * After receiving Block Ack Request (BAR) we activated a
  * timer after each frame arrives from the originator.
@@ -1297,7 +1320,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
        DECLARE_MAC_BUF(mac);
 
        if (ifsta->state != IEEE80211_AUTHENTICATE &&
-           sdata->type != IEEE80211_IF_TYPE_IBSS) {
+           sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
                printk(KERN_DEBUG "%s: authentication frame received from "
                       "%s, but not in authenticate state - ignored\n",
                       dev->name, print_mac(mac, mgmt->sa));
@@ -1311,7 +1334,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
                return;
        }
 
-       if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+       if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
            memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
                printk(KERN_DEBUG "%s: authentication frame received from "
                       "unknown AP (SA=%s BSSID=%s) - "
@@ -1320,7 +1343,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
                return;
        }
 
-       if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+       if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
            memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) {
                printk(KERN_DEBUG "%s: authentication frame received from "
                       "unknown BSSID (SA=%s BSSID=%s) - "
@@ -1338,7 +1361,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
               dev->name, print_mac(mac, mgmt->sa), auth_alg,
               auth_transaction, status_code);
 
-       if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
+       if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
                /* IEEE 802.11 standard does not require authentication in IBSS
                 * networks and most implementations do not seem to use it.
                 * However, try to reply to authentication attempts if someone
@@ -1504,18 +1527,20 @@ static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
 }
 
 
-static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
+static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
                                         struct ieee80211_if_sta *ifsta,
                                         struct ieee80211_mgmt *mgmt,
                                         size_t len,
                                         int reassoc)
 {
-       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+       struct ieee80211_local *local = sdata->local;
+       struct net_device *dev = sdata->dev;
        struct ieee80211_hw_mode *mode;
        struct sta_info *sta;
        u32 rates;
        u16 capab_info, status_code, aid;
        struct ieee802_11_elems elems;
+       struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
        u8 *pos;
        int i, j;
        DECLARE_MAC_BUF(mac);
@@ -1588,6 +1613,8 @@ static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
        if (ifsta->assocresp_ies)
                memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
 
+       /* set AID, ieee80211_set_associated() will tell the driver */
+       bss_conf->aid = aid;
        ieee80211_set_associated(dev, ifsta, 1);
 
        /* Add STA entry for the AP */
@@ -1817,7 +1844,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 
        timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
 
-       if (sdata->type == IEEE80211_IF_TYPE_IBSS && beacon &&
+       if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon &&
            memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
                static unsigned long last_tsf_debug = 0;
@@ -1842,7 +1869,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 
        ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
 
-       if (sdata->type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
+       if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
            memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
            (sta = sta_info_get(local, mgmt->sa))) {
                struct ieee80211_hw_mode *mode;
@@ -2067,11 +2094,12 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
        struct ieee802_11_elems elems;
        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
        struct ieee80211_conf *conf = &local->hw.conf;
+       u32 changed = 0;
 
        ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
 
        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-       if (sdata->type != IEEE80211_IF_TYPE_STA)
+       if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
                return;
        ifsta = &sdata->u.sta;
 
@@ -2087,7 +2115,7 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
        ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
 
        if (elems.erp_info && elems.erp_info_len >= 1)
-               ieee80211_handle_erp_ie(dev, elems.erp_info[0]);
+               changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
 
        if (elems.ht_cap_elem && elems.ht_info_elem &&
            elems.wmm_param && local->ops->conf_ht &&
@@ -2110,6 +2138,8 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
                ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
                                         elems.wmm_param_len);
        }
+
+       ieee80211_bss_info_change_notify(sdata, changed);
 }
 
 
@@ -2131,7 +2161,7 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
        DECLARE_MAC_BUF(mac3);
 #endif
 
-       if (sdata->type != IEEE80211_IF_TYPE_IBSS ||
+       if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS ||
            ifsta->state != IEEE80211_IBSS_JOINED ||
            len < 24 + 2 || !ifsta->probe_resp)
                return;
@@ -2204,9 +2234,15 @@ static void ieee80211_rx_mgmt_action(struct net_device *dev,
                                break;
                        ieee80211_sta_process_addba_request(dev, mgmt, len);
                        break;
+               case WLAN_ACTION_DELBA:
+                       if (len < (IEEE80211_MIN_ACTION_SIZE +
+                                  sizeof(mgmt->u.action.u.delba)))
+                               break;
+                       ieee80211_sta_process_delba(dev, mgmt, len);
+                       break;
                default:
                        if (net_ratelimit())
-                          printk(KERN_DEBUG "%s: received unsupported BACK\n",
+                          printk(KERN_DEBUG "%s: Rx unknown A-MPDU action\n",
                                        dev->name);
                        break;
                }
@@ -2291,10 +2327,10 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
                ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
                break;
        case IEEE80211_STYPE_ASSOC_RESP:
-               ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 0);
+               ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 0);
                break;
        case IEEE80211_STYPE_REASSOC_RESP:
-               ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 1);
+               ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 1);
                break;
        case IEEE80211_STYPE_DEAUTH:
                ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
@@ -2436,10 +2472,10 @@ void ieee80211_sta_work(struct work_struct *work)
        if (local->sta_sw_scanning || local->sta_hw_scanning)
                return;
 
-       if (sdata->type != IEEE80211_IF_TYPE_STA &&
-           sdata->type != IEEE80211_IF_TYPE_IBSS) {
+       if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+           sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
                printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
-                      "(type=%d)\n", dev->name, sdata->type);
+                      "(type=%d)\n", dev->name, sdata->vif.type);
                return;
        }
        ifsta = &sdata->u.sta;
@@ -2534,7 +2570,7 @@ void ieee80211_sta_req_auth(struct net_device *dev,
        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-       if (sdata->type != IEEE80211_IF_TYPE_STA)
+       if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
                return;
 
        if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
@@ -2748,8 +2784,9 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
                               "for IBSS beacon\n", dev->name);
                        break;
                }
+               control.vif = &sdata->vif;
                control.tx_rate =
-                       ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+                       (sdata->bss_conf.use_short_preamble &&
                        (ratesel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
                        ratesel.rate->val2 : ratesel.rate->val;
                control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
@@ -3001,7 +3038,7 @@ int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
                ifsta->flags |= IEEE80211_STA_SSID_SET;
        else
                ifsta->flags &= ~IEEE80211_STA_SSID_SET;
-       if (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+       if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
            !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
                ifsta->ibss_join_req = jiffies;
                ifsta->state = IEEE80211_IBSS_SEARCH;
@@ -3119,7 +3156,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
                if (sdata->dev == local->mdev)
                        continue;
 
-               if (sdata->type == IEEE80211_IF_TYPE_STA) {
+               if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
                        if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
                                ieee80211_send_nullfunc(local, sdata, 0);
                        ieee80211_sta_timer((unsigned long)sdata);
@@ -3131,7 +3168,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 
 done:
        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-       if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
+       if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
                struct ieee80211_if_sta *ifsta = &sdata->u.sta;
                if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
                    (!ifsta->state == IEEE80211_IBSS_JOINED &&
@@ -3166,7 +3203,7 @@ void ieee80211_sta_scan_work(struct work_struct *work)
                skip = !(local->enabled_modes & (1 << mode->mode));
                chan = &mode->channels[local->scan_channel_idx];
                if (!(chan->flag & IEEE80211_CHAN_W_SCAN) ||
-                   (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+                   (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
                     !(chan->flag & IEEE80211_CHAN_W_IBSS)) ||
                    (local->hw_modes & local->enabled_modes &
                     (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
@@ -3274,7 +3311,7 @@ static int ieee80211_sta_start_scan(struct net_device *dev,
                        continue;
 
                netif_stop_queue(sdata->dev);
-               if (sdata->type == IEEE80211_IF_TYPE_STA &&
+               if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
                    (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
                        ieee80211_send_nullfunc(local, sdata, 1);
        }
@@ -3315,7 +3352,7 @@ int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
        struct ieee80211_if_sta *ifsta = &sdata->u.sta;
        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 
-       if (sdata->type != IEEE80211_IF_TYPE_STA)
+       if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
                return ieee80211_sta_start_scan(dev, ssid, ssid_len);
 
        if (local->sta_sw_scanning || local->sta_hw_scanning) {
@@ -3538,8 +3575,8 @@ int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason)
        printk(KERN_DEBUG "%s: deauthenticate(reason=%d)\n",
               dev->name, reason);
 
-       if (sdata->type != IEEE80211_IF_TYPE_STA &&
-           sdata->type != IEEE80211_IF_TYPE_IBSS)
+       if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+           sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
                return -EINVAL;
 
        ieee80211_send_deauth(dev, ifsta, reason);
@@ -3556,7 +3593,7 @@ int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
        printk(KERN_DEBUG "%s: disassociate(reason=%d)\n",
               dev->name, reason);
 
-       if (sdata->type != IEEE80211_IF_TYPE_STA)
+       if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
                return -EINVAL;
 
        if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))