]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
mac80211: move BSS handling to scan code
authorJohannes Berg <johannes@sipsolutions.net>
Mon, 8 Sep 2008 15:44:27 +0000 (17:44 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Thu, 11 Sep 2008 19:53:37 +0000 (15:53 -0400)
This moves all the BSS list handling out of mlme.c to scan.c,
no further changes except fixing kzalloc/atomic_inc/atomic_inc
to kzalloc/atomic_set(2).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
net/mac80211/ieee80211_i.h
net/mac80211/mlme.c
net/mac80211/scan.c

index 4753ed3f3f10d9a979ab5af35e33375fb5f0c1c8..792c09ca08e384131e75a78207c5c9df05f75cd0 100644 (file)
@@ -944,6 +944,12 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
                          size_t len,
                          struct ieee802_11_elems *elems,
                          int freq, bool beacon);
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
+                    u8 *ssid, u8 ssid_len);
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
+                    u8 *ssid, u8 ssid_len);
 void ieee80211_rx_bss_put(struct ieee80211_local *local,
                          struct ieee80211_sta_bss *bss);
 
index 1708a3d1cd382310a90a8adbfefe7ea63c0edc5b..be3292bfabe3b2e117b0ed88e0729e0d5cc89713 100644 (file)
  * published by the Free Software Foundation.
  */
 
-/* TODO:
- * order BSS list by RSSI(?) ("quality of AP")
- * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
- *    SSID)
- */
 #include <linux/delay.h>
 #include <linux/if_ether.h>
 #include <linux/skbuff.h>
 #define IEEE80211_MIN_AMPDU_BUF 0x8
 #define IEEE80211_MAX_AMPDU_BUF 0x40
 
-/* BSS handling */
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
-                    u8 *ssid, u8 ssid_len)
-{
-       struct ieee80211_sta_bss *bss;
-
-       spin_lock_bh(&local->sta_bss_lock);
-       bss = local->sta_bss_hash[STA_HASH(bssid)];
-       while (bss) {
-               if (!bss_mesh_cfg(bss) &&
-                   !memcmp(bss->bssid, bssid, ETH_ALEN) &&
-                   bss->freq == freq &&
-                   bss->ssid_len == ssid_len &&
-                   (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
-                       atomic_inc(&bss->users);
-                       break;
-               }
-               bss = bss->hnext;
-       }
-       spin_unlock_bh(&local->sta_bss_lock);
-       return bss;
-}
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_add(struct ieee80211_local *local,
-                                       struct ieee80211_sta_bss *bss)
-{
-       u8 hash_idx;
-
-       if (bss_mesh_cfg(bss))
-               hash_idx = mesh_id_hash(bss_mesh_id(bss),
-                                       bss_mesh_id_len(bss));
-       else
-               hash_idx = STA_HASH(bss->bssid);
-
-       bss->hnext = local->sta_bss_hash[hash_idx];
-       local->sta_bss_hash[hash_idx] = bss;
-}
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local,
-                                       struct ieee80211_sta_bss *bss)
-{
-       struct ieee80211_sta_bss *b, *prev = NULL;
-       b = local->sta_bss_hash[STA_HASH(bss->bssid)];
-       while (b) {
-               if (b == bss) {
-                       if (!prev)
-                               local->sta_bss_hash[STA_HASH(bss->bssid)] =
-                                       bss->hnext;
-                       else
-                               prev->hnext = bss->hnext;
-                       break;
-               }
-               prev = b;
-               b = b->hnext;
-       }
-}
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
-                    u8 *ssid, u8 ssid_len)
-{
-       struct ieee80211_sta_bss *bss;
-
-       bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
-       if (!bss)
-               return NULL;
-       atomic_inc(&bss->users);
-       atomic_inc(&bss->users);
-       memcpy(bss->bssid, bssid, ETH_ALEN);
-       bss->freq = freq;
-       if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
-               memcpy(bss->ssid, ssid, ssid_len);
-               bss->ssid_len = ssid_len;
-       }
-
-       spin_lock_bh(&local->sta_bss_lock);
-       /* TODO: order by RSSI? */
-       list_add_tail(&bss->list, &local->sta_bss_list);
-       __ieee80211_rx_bss_hash_add(local, bss);
-       spin_unlock_bh(&local->sta_bss_lock);
-       return bss;
-}
-
-#ifdef CONFIG_MAC80211_MESH
-static struct ieee80211_sta_bss *
-ieee80211_rx_mesh_bss_get(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
-                         u8 *mesh_cfg, int freq)
-{
-       struct ieee80211_sta_bss *bss;
-
-       spin_lock_bh(&local->sta_bss_lock);
-       bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
-       while (bss) {
-               if (bss_mesh_cfg(bss) &&
-                   !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
-                   bss->freq == freq &&
-                   mesh_id_len == bss->mesh_id_len &&
-                   (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
-                                                mesh_id_len))) {
-                       atomic_inc(&bss->users);
-                       break;
-               }
-               bss = bss->hnext;
-       }
-       spin_unlock_bh(&local->sta_bss_lock);
-       return bss;
-}
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_mesh_bss_add(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
-                         u8 *mesh_cfg, int mesh_config_len, int freq)
-{
-       struct ieee80211_sta_bss *bss;
-
-       if (mesh_config_len != MESH_CFG_LEN)
-               return NULL;
-
-       bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
-       if (!bss)
-               return NULL;
-
-       bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
-       if (!bss->mesh_cfg) {
-               kfree(bss);
-               return NULL;
-       }
-
-       if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
-               bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
-               if (!bss->mesh_id) {
-                       kfree(bss->mesh_cfg);
-                       kfree(bss);
-                       return NULL;
-               }
-               memcpy(bss->mesh_id, mesh_id, mesh_id_len);
-       }
-
-       atomic_inc(&bss->users);
-       atomic_inc(&bss->users);
-       memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
-       bss->mesh_id_len = mesh_id_len;
-       bss->freq = freq;
-       spin_lock_bh(&local->sta_bss_lock);
-       /* TODO: order by RSSI? */
-       list_add_tail(&bss->list, &local->sta_bss_list);
-       __ieee80211_rx_bss_hash_add(local, bss);
-       spin_unlock_bh(&local->sta_bss_lock);
-       return bss;
-}
-#endif
-
-static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
-{
-       kfree(bss->ies);
-       kfree(bss_mesh_id(bss));
-       kfree(bss_mesh_cfg(bss));
-       kfree(bss);
-}
-
-void ieee80211_rx_bss_put(struct ieee80211_local *local,
-                         struct ieee80211_sta_bss *bss)
-{
-       local_bh_disable();
-       if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) {
-               local_bh_enable();
-               return;
-       }
-
-       __ieee80211_rx_bss_hash_del(local, bss);
-       list_del(&bss->list);
-       spin_unlock_bh(&local->sta_bss_lock);
-       ieee80211_rx_bss_free(bss);
-}
-
-void ieee80211_rx_bss_list_init(struct ieee80211_local *local)
-{
-       spin_lock_init(&local->sta_bss_lock);
-       INIT_LIST_HEAD(&local->sta_bss_list);
-}
-
-void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local)
+/* utils */
+static int ecw2cw(int ecw)
 {
-       struct ieee80211_sta_bss *bss, *tmp;
-
-       list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
-               ieee80211_rx_bss_put(local, bss);
+       return (1 << ecw) - 1;
 }
 
 static u8 *ieee80211_bss_get_ie(struct ieee80211_sta_bss *bss, u8 ie)
@@ -278,12 +88,6 @@ static u8 *ieee80211_bss_get_ie(struct ieee80211_sta_bss *bss, u8 ie)
        return NULL;
 }
 
-/* utils */
-static int ecw2cw(int ecw)
-{
-       return (1 << ecw) - 1;
-}
-
 /* frame sending functions */
 void ieee80211_sta_tx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
                      int encrypt)
@@ -2442,114 +2246,6 @@ static u64 ieee80211_sta_get_mandatory_rates(struct ieee80211_local *local,
        return mandatory_rates;
 }
 
-struct ieee80211_sta_bss *
-ieee80211_bss_info_update(struct ieee80211_local *local,
-                         struct ieee80211_rx_status *rx_status,
-                         struct ieee80211_mgmt *mgmt,
-                         size_t len,
-                         struct ieee802_11_elems *elems,
-                         int freq, bool beacon)
-{
-       struct ieee80211_sta_bss *bss;
-       int clen;
-
-#ifdef CONFIG_MAC80211_MESH
-       if (elems->mesh_config)
-               bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id,
-                               elems->mesh_id_len, elems->mesh_config, freq);
-       else
-#endif
-               bss = ieee80211_rx_bss_get(local, mgmt->bssid, freq,
-                                          elems->ssid, elems->ssid_len);
-       if (!bss) {
-#ifdef CONFIG_MAC80211_MESH
-               if (elems->mesh_config)
-                       bss = ieee80211_rx_mesh_bss_add(local, elems->mesh_id,
-                               elems->mesh_id_len, elems->mesh_config,
-                               elems->mesh_config_len, freq);
-               else
-#endif
-                       bss = ieee80211_rx_bss_add(local, mgmt->bssid, freq,
-                                                 elems->ssid, elems->ssid_len);
-               if (!bss)
-                       return NULL;
-       } else {
-#if 0
-               /* TODO: order by RSSI? */
-               spin_lock_bh(&local->sta_bss_lock);
-               list_move_tail(&bss->list, &local->sta_bss_list);
-               spin_unlock_bh(&local->sta_bss_lock);
-#endif
-       }
-
-       /* save the ERP value so that it is available at association time */
-       if (elems->erp_info && elems->erp_info_len >= 1) {
-               bss->erp_value = elems->erp_info[0];
-               bss->has_erp_value = 1;
-       }
-
-       bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
-       bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
-
-       if (elems->tim) {
-               struct ieee80211_tim_ie *tim_ie =
-                       (struct ieee80211_tim_ie *)elems->tim;
-               bss->dtim_period = tim_ie->dtim_period;
-       }
-
-       /* set default value for buggy APs */
-       if (!elems->tim || bss->dtim_period == 0)
-               bss->dtim_period = 1;
-
-       bss->supp_rates_len = 0;
-       if (elems->supp_rates) {
-               clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
-               if (clen > elems->supp_rates_len)
-                       clen = elems->supp_rates_len;
-               memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates,
-                      clen);
-               bss->supp_rates_len += clen;
-       }
-       if (elems->ext_supp_rates) {
-               clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
-               if (clen > elems->ext_supp_rates_len)
-                       clen = elems->ext_supp_rates_len;
-               memcpy(&bss->supp_rates[bss->supp_rates_len],
-                      elems->ext_supp_rates, clen);
-               bss->supp_rates_len += clen;
-       }
-
-       bss->band = rx_status->band;
-
-       bss->timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
-       bss->last_update = jiffies;
-       bss->signal = rx_status->signal;
-       bss->noise = rx_status->noise;
-       bss->qual = rx_status->qual;
-       bss->wmm_used = elems->wmm_param || elems->wmm_info;
-
-       if (!beacon)
-               bss->last_probe_resp = jiffies;
-
-       /*
-        * For probe responses, or if we don't have any information yet,
-        * use the IEs from the beacon.
-        */
-       if (!bss->ies || !beacon) {
-               if (bss->ies == NULL || bss->ies_len < elems->total_len) {
-                       kfree(bss->ies);
-                       bss->ies = kmalloc(elems->total_len, GFP_ATOMIC);
-               }
-               if (bss->ies) {
-                       memcpy(bss->ies, elems->ie_start, elems->total_len);
-                       bss->ies_len = elems->total_len;
-               } else
-                       bss->ies_len = 0;
-       }
-
-       return bss;
-}
-
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
                                  struct ieee80211_mgmt *mgmt,
                                  size_t len,
index 2848ba3a08e327fc481fb73bbb0e36f0b38b6963..1beefb5ad6fbcb5b024d5026d63356c2045d0c9e 100644 (file)
@@ -1,5 +1,6 @@
 /*
- * BSS client mode implementation
+ * Scanning implementation
+ *
  * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
  * Copyright 2004, Instant802 Networks, Inc.
  * Copyright 2005, Devicescape Software, Inc.
  * published by the Free Software Foundation.
  */
 
+/* TODO:
+ * order BSS list by RSSI(?) ("quality of AP")
+ * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
+ *    SSID)
+ */
+
 #include <linux/wireless.h>
 #include <linux/if_arp.h>
 #include <net/mac80211.h>
 #include <net/iw_handler.h>
 
 #include "ieee80211_i.h"
+#include "mesh.h"
 
 #define IEEE80211_PROBE_DELAY (HZ / 33)
 #define IEEE80211_CHANNEL_TIME (HZ / 33)
 #define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
 
+void ieee80211_rx_bss_list_init(struct ieee80211_local *local)
+{
+       spin_lock_init(&local->sta_bss_lock);
+       INIT_LIST_HEAD(&local->sta_bss_list);
+}
+
+void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local)
+{
+       struct ieee80211_sta_bss *bss, *tmp;
+
+       list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
+               ieee80211_rx_bss_put(local, bss);
+}
+
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
+                    u8 *ssid, u8 ssid_len)
+{
+       struct ieee80211_sta_bss *bss;
+
+       spin_lock_bh(&local->sta_bss_lock);
+       bss = local->sta_bss_hash[STA_HASH(bssid)];
+       while (bss) {
+               if (!bss_mesh_cfg(bss) &&
+                   !memcmp(bss->bssid, bssid, ETH_ALEN) &&
+                   bss->freq == freq &&
+                   bss->ssid_len == ssid_len &&
+                   (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
+                       atomic_inc(&bss->users);
+                       break;
+               }
+               bss = bss->hnext;
+       }
+       spin_unlock_bh(&local->sta_bss_lock);
+       return bss;
+}
+
+/* Caller must hold local->sta_bss_lock */
+static void __ieee80211_rx_bss_hash_add(struct ieee80211_local *local,
+                                       struct ieee80211_sta_bss *bss)
+{
+       u8 hash_idx;
+
+       if (bss_mesh_cfg(bss))
+               hash_idx = mesh_id_hash(bss_mesh_id(bss),
+                                       bss_mesh_id_len(bss));
+       else
+               hash_idx = STA_HASH(bss->bssid);
+
+       bss->hnext = local->sta_bss_hash[hash_idx];
+       local->sta_bss_hash[hash_idx] = bss;
+}
+
+/* Caller must hold local->sta_bss_lock */
+static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local,
+                                       struct ieee80211_sta_bss *bss)
+{
+       struct ieee80211_sta_bss *b, *prev = NULL;
+       b = local->sta_bss_hash[STA_HASH(bss->bssid)];
+       while (b) {
+               if (b == bss) {
+                       if (!prev)
+                               local->sta_bss_hash[STA_HASH(bss->bssid)] =
+                                       bss->hnext;
+                       else
+                               prev->hnext = bss->hnext;
+                       break;
+               }
+               prev = b;
+               b = b->hnext;
+       }
+}
+
+struct ieee80211_sta_bss *
+ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
+                    u8 *ssid, u8 ssid_len)
+{
+       struct ieee80211_sta_bss *bss;
+
+       bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+       if (!bss)
+               return NULL;
+       atomic_set(&bss->users, 2);
+       memcpy(bss->bssid, bssid, ETH_ALEN);
+       bss->freq = freq;
+       if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
+               memcpy(bss->ssid, ssid, ssid_len);
+               bss->ssid_len = ssid_len;
+       }
+
+       spin_lock_bh(&local->sta_bss_lock);
+       /* TODO: order by RSSI? */
+       list_add_tail(&bss->list, &local->sta_bss_list);
+       __ieee80211_rx_bss_hash_add(local, bss);
+       spin_unlock_bh(&local->sta_bss_lock);
+       return bss;
+}
+
+#ifdef CONFIG_MAC80211_MESH
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_get(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
+                         u8 *mesh_cfg, int freq)
+{
+       struct ieee80211_sta_bss *bss;
+
+       spin_lock_bh(&local->sta_bss_lock);
+       bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
+       while (bss) {
+               if (bss_mesh_cfg(bss) &&
+                   !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
+                   bss->freq == freq &&
+                   mesh_id_len == bss->mesh_id_len &&
+                   (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
+                                                mesh_id_len))) {
+                       atomic_inc(&bss->users);
+                       break;
+               }
+               bss = bss->hnext;
+       }
+       spin_unlock_bh(&local->sta_bss_lock);
+       return bss;
+}
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_add(struct ieee80211_local *local, u8 *mesh_id, int mesh_id_len,
+                         u8 *mesh_cfg, int mesh_config_len, int freq)
+{
+       struct ieee80211_sta_bss *bss;
+
+       if (mesh_config_len != MESH_CFG_LEN)
+               return NULL;
+
+       bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+       if (!bss)
+               return NULL;
+
+       bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
+       if (!bss->mesh_cfg) {
+               kfree(bss);
+               return NULL;
+       }
+
+       if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
+               bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
+               if (!bss->mesh_id) {
+                       kfree(bss->mesh_cfg);
+                       kfree(bss);
+                       return NULL;
+               }
+               memcpy(bss->mesh_id, mesh_id, mesh_id_len);
+       }
+
+       atomic_set(&bss->users, 2);
+       memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
+       bss->mesh_id_len = mesh_id_len;
+       bss->freq = freq;
+       spin_lock_bh(&local->sta_bss_lock);
+       /* TODO: order by RSSI? */
+       list_add_tail(&bss->list, &local->sta_bss_list);
+       __ieee80211_rx_bss_hash_add(local, bss);
+       spin_unlock_bh(&local->sta_bss_lock);
+       return bss;
+}
+#endif
+
+static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
+{
+       kfree(bss->ies);
+       kfree(bss_mesh_id(bss));
+       kfree(bss_mesh_cfg(bss));
+       kfree(bss);
+}
+
+void ieee80211_rx_bss_put(struct ieee80211_local *local,
+                         struct ieee80211_sta_bss *bss)
+{
+       local_bh_disable();
+       if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) {
+               local_bh_enable();
+               return;
+       }
+
+       __ieee80211_rx_bss_hash_del(local, bss);
+       list_del(&bss->list);
+       spin_unlock_bh(&local->sta_bss_lock);
+       ieee80211_rx_bss_free(bss);
+}
+
+struct ieee80211_sta_bss *
+ieee80211_bss_info_update(struct ieee80211_local *local,
+                         struct ieee80211_rx_status *rx_status,
+                         struct ieee80211_mgmt *mgmt,
+                         size_t len,
+                         struct ieee802_11_elems *elems,
+                         int freq, bool beacon)
+{
+       struct ieee80211_sta_bss *bss;
+       int clen;
+
+#ifdef CONFIG_MAC80211_MESH
+       if (elems->mesh_config)
+               bss = ieee80211_rx_mesh_bss_get(local, elems->mesh_id,
+                               elems->mesh_id_len, elems->mesh_config, freq);
+       else
+#endif
+               bss = ieee80211_rx_bss_get(local, mgmt->bssid, freq,
+                                          elems->ssid, elems->ssid_len);
+       if (!bss) {
+#ifdef CONFIG_MAC80211_MESH
+               if (elems->mesh_config)
+                       bss = ieee80211_rx_mesh_bss_add(local, elems->mesh_id,
+                               elems->mesh_id_len, elems->mesh_config,
+                               elems->mesh_config_len, freq);
+               else
+#endif
+                       bss = ieee80211_rx_bss_add(local, mgmt->bssid, freq,
+                                                 elems->ssid, elems->ssid_len);
+               if (!bss)
+                       return NULL;
+       } else {
+#if 0
+               /* TODO: order by RSSI? */
+               spin_lock_bh(&local->sta_bss_lock);
+               list_move_tail(&bss->list, &local->sta_bss_list);
+               spin_unlock_bh(&local->sta_bss_lock);
+#endif
+       }
+
+       /* save the ERP value so that it is available at association time */
+       if (elems->erp_info && elems->erp_info_len >= 1) {
+               bss->erp_value = elems->erp_info[0];
+               bss->has_erp_value = 1;
+       }
+
+       bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
+       bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
+
+       if (elems->tim) {
+               struct ieee80211_tim_ie *tim_ie =
+                       (struct ieee80211_tim_ie *)elems->tim;
+               bss->dtim_period = tim_ie->dtim_period;
+       }
+
+       /* set default value for buggy APs */
+       if (!elems->tim || bss->dtim_period == 0)
+               bss->dtim_period = 1;
+
+       bss->supp_rates_len = 0;
+       if (elems->supp_rates) {
+               clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+               if (clen > elems->supp_rates_len)
+                       clen = elems->supp_rates_len;
+               memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates,
+                      clen);
+               bss->supp_rates_len += clen;
+       }
+       if (elems->ext_supp_rates) {
+               clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+               if (clen > elems->ext_supp_rates_len)
+                       clen = elems->ext_supp_rates_len;
+               memcpy(&bss->supp_rates[bss->supp_rates_len],
+                      elems->ext_supp_rates, clen);
+               bss->supp_rates_len += clen;
+       }
+
+       bss->band = rx_status->band;
+
+       bss->timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+       bss->last_update = jiffies;
+       bss->signal = rx_status->signal;
+       bss->noise = rx_status->noise;
+       bss->qual = rx_status->qual;
+       bss->wmm_used = elems->wmm_param || elems->wmm_info;
+
+       if (!beacon)
+               bss->last_probe_resp = jiffies;
+
+       /*
+        * For probe responses, or if we don't have any information yet,
+        * use the IEs from the beacon.
+        */
+       if (!bss->ies || !beacon) {
+               if (bss->ies == NULL || bss->ies_len < elems->total_len) {
+                       kfree(bss->ies);
+                       bss->ies = kmalloc(elems->total_len, GFP_ATOMIC);
+               }
+               if (bss->ies) {
+                       memcpy(bss->ies, elems->ie_start, elems->total_len);
+                       bss->ies_len = elems->total_len;
+               } else
+                       bss->ies_len = 0;
+       }
+
+       return bss;
+}
 
 ieee80211_rx_result
 ieee80211_sta_rx_scan(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,