mac80211: revamp beacon configuration

This patch changes mac80211's beacon configuration handling
to never pass skbs to the driver directly but rather always
require the driver to use ieee80211_beacon_get(). Additionally,
it introduces "change flags" on the config_interface() call
to enable drivers to figure out what is changing. Finally, it
removes the beacon_update() driver callback in favour of
having IBSS beacon delivered by ieee80211_beacon_get() as well.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

14 files changed, 115 insertions, 94 deletions

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index a43e9b25169..217d506527a 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -207,7 +207,6 @@ static struct ieee80211_ops ath5k_hw_ops = {
         .get_tx_stats   = ath5k_get_tx_stats,
         .get_tsf        = ath5k_get_tsf,
         .reset_tsf      = ath5k_reset_tsf,
-        .beacon_update  = ath5k_beacon_update,
 };
 
 /*
@@ -2785,6 +2784,18 @@ ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                  * a clean way of letting us retrieve this yet. */
                 ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
         }
+
+        if (conf->changed & IEEE80211_IFCC_BEACON &&
+            vif->type == IEEE80211_IF_TYPE_IBSS) {
+                struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
+                if (!beacon) {
+                        ret = -ENOMEM;
+                        goto unlock;
+                }
+                /* call old handler for now */
+                ath5k_beacon_update(hw, beacon);
+        }
+
         mutex_unlock(&sc->lock);
 
         return ath5k_reset(hw);
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 9d2eb273b72..381dbd33dfc 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -1675,14 +1675,24 @@ static void b43_beacon_update_trigger_work(struct work_struct *work)
 
 /* Asynchronously update the packet templates in template RAM.
  * Locking: Requires wl->irq_lock to be locked. */
-static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
+static void b43_update_templates(struct b43_wl *wl)
 {
+        struct sk_buff *beacon;
+
         /* This is the top half of the ansynchronous beacon update.
          * The bottom half is the beacon IRQ.
          * Beacon update must be asynchronous to avoid sending an
          * invalid beacon. This can happen for example, if the firmware
          * transmits a beacon while we are updating it. */
 
+        /* We could modify the existing beacon and set the aid bit in
+         * the TIM field, but that would probably require resizing and
+         * moving of data within the beacon template.
+         * Simply request a new beacon and let mac80211 do the hard work. */
+        beacon = ieee80211_beacon_get(wl->hw, wl->vif);
+        if (unlikely(!beacon))
+                return;
+
         if (wl->current_beacon)
                 dev_kfree_skb_any(wl->current_beacon);
         wl->current_beacon = beacon;
@@ -3645,10 +3655,14 @@ static int b43_op_config_interface(struct ieee80211_hw *hw,
         if (b43_status(dev) >= B43_STAT_INITIALIZED) {
                 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) ||
                     b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT)) {
-                        B43_WARN_ON(conf->type != wl->if_type);
-                        b43_set_ssid(dev, conf->ssid, conf->ssid_len);
-                        if (conf->beacon)
-                                b43_update_templates(wl, conf->beacon);
+                        B43_WARN_ON(vif->type != wl->if_type);
+                        if (conf->changed & IEEE80211_IFCC_SSID)
+                                b43_set_ssid(dev, conf->ssid, conf->ssid_len);
+                        if (conf->changed & IEEE80211_IFCC_BEACON)
+                                b43_update_templates(wl);
+                } else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS)) {
+                        if (conf->changed & IEEE80211_IFCC_BEACON)
+                                b43_update_templates(wl);
                 }
                 b43_write_mac_bssid_templates(dev);
         }
@@ -4336,31 +4350,10 @@ out_unlock:
 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set)
 {
         struct b43_wl *wl = hw_to_b43_wl(hw);
-        struct sk_buff *beacon;
-        unsigned long flags;
-
-        /* We could modify the existing beacon and set the aid bit in
-         * the TIM field, but that would probably require resizing and
-         * moving of data within the beacon template.
-         * Simply request a new beacon and let mac80211 do the hard work. */
-        beacon = ieee80211_beacon_get(hw, wl->vif);
-        if (unlikely(!beacon))
-                return -ENOMEM;
-        spin_lock_irqsave(&wl->irq_lock, flags);
-        b43_update_templates(wl, beacon);
-        spin_unlock_irqrestore(&wl->irq_lock, flags);
-
-        return 0;
-}
-
-static int b43_op_ibss_beacon_update(struct ieee80211_hw *hw,
-                                     struct sk_buff *beacon)
-{
-        struct b43_wl *wl = hw_to_b43_wl(hw);
         unsigned long flags;
 
         spin_lock_irqsave(&wl->irq_lock, flags);
-        b43_update_templates(wl, beacon);
+        b43_update_templates(wl);
         spin_unlock_irqrestore(&wl->irq_lock, flags);
 
         return 0;
@@ -4391,7 +4384,6 @@ static const struct ieee80211_ops b43_hw_ops = {
         .stop                   = b43_op_stop,
         .set_retry_limit        = b43_op_set_retry_limit,
         .set_tim                = b43_op_beacon_set_tim,
-        .beacon_update          = b43_op_ibss_beacon_update,
         .sta_notify             = b43_op_sta_notify,
 };
 
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 069157eea05..a1b8bf3ee73 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -1138,14 +1138,22 @@ static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev,
 
 /* Asynchronously update the packet templates in template RAM.
  * Locking: Requires wl->irq_lock to be locked. */
-static void b43legacy_update_templates(struct b43legacy_wl *wl,
-                                       struct sk_buff *beacon)
+static void b43legacy_update_templates(struct b43legacy_wl *wl)
 {
+        struct sk_buff *beacon;
         /* This is the top half of the ansynchronous beacon update. The bottom
          * half is the beacon IRQ. Beacon update must be asynchronous to avoid
          * sending an invalid beacon. This can happen for example, if the
          * firmware transmits a beacon while we are updating it. */
 
+        /* We could modify the existing beacon and set the aid bit in the TIM
+         * field, but that would probably require resizing and moving of data
+         * within the beacon template. Simply request a new beacon and let
+         * mac80211 do the hard work. */
+        beacon = ieee80211_beacon_get(wl->hw, wl->vif);
+        if (unlikely(!beacon))
+                return;
+
         if (wl->current_beacon)
                 dev_kfree_skb_any(wl->current_beacon);
         wl->current_beacon = beacon;
@@ -2727,10 +2735,13 @@ static int b43legacy_op_config_interface(struct ieee80211_hw *hw,
                 memset(wl->bssid, 0, ETH_ALEN);
         if (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) {
                 if (b43legacy_is_mode(wl, IEEE80211_IF_TYPE_AP)) {
-                        B43legacy_WARN_ON(conf->type != IEEE80211_IF_TYPE_AP);
+                        B43legacy_WARN_ON(vif->type != IEEE80211_IF_TYPE_AP);
                         b43legacy_set_ssid(dev, conf->ssid, conf->ssid_len);
-                        if (conf->beacon)
-                                b43legacy_update_templates(wl, conf->beacon);
+                        if (conf->changed & IEEE80211_IFCC_BEACON)
+                                b43legacy_update_templates(wl);
+                } else if (b43legacy_is_mode(wl, IEEE80211_IF_TYPE_IBSS)) {
+                        if (conf->changed & IEEE80211_IFCC_BEACON)
+                                b43legacy_update_templates(wl);
                 }
                 b43legacy_write_mac_bssid_templates(dev);
         }
@@ -3396,31 +3407,10 @@ static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
                                        int aid, int set)
 {
         struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
-        struct sk_buff *beacon;
-        unsigned long flags;
-
-        /* We could modify the existing beacon and set the aid bit in the TIM
-         * field, but that would probably require resizing and moving of data
-         * within the beacon template. Simply request a new beacon and let
-         * mac80211 do the hard work. */
-        beacon = ieee80211_beacon_get(hw, wl->vif);
-        if (unlikely(!beacon))
-                return -ENOMEM;
-        spin_lock_irqsave(&wl->irq_lock, flags);
-        b43legacy_update_templates(wl, beacon);
-        spin_unlock_irqrestore(&wl->irq_lock, flags);
-
-        return 0;
-}
-
-static int b43legacy_op_ibss_beacon_update(struct ieee80211_hw *hw,
-                                           struct sk_buff *beacon)
-{
-        struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
         unsigned long flags;
 
         spin_lock_irqsave(&wl->irq_lock, flags);
-        b43legacy_update_templates(wl, beacon);
+        b43legacy_update_templates(wl);
         spin_unlock_irqrestore(&wl->irq_lock, flags);
 
         return 0;
@@ -3440,7 +3430,6 @@ static const struct ieee80211_ops b43legacy_hw_ops = {
         .stop                   = b43legacy_op_stop,
         .set_retry_limit        = b43legacy_op_set_retry_limit,
         .set_tim                = b43legacy_op_beacon_set_tim,
-        .beacon_update          = b43legacy_op_ibss_beacon_update,
 };
 
 /* Hard-reset the chip. Do not call this directly.
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 1a7d18fea89..7d015f86ee8 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6907,6 +6907,9 @@ static void iwl3945_config_ap(struct iwl3945_priv *priv)
          * clear sta table, add BCAST sta... */
 }
 
+/* temporary */
+static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
+
 static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
                                         struct ieee80211_vif *vif,
                                     struct ieee80211_if_conf *conf)
@@ -6924,10 +6927,21 @@ static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
                 return 0;
         }
 
+        /* handle this temporarily here */
+        if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
+            conf->changed & IEEE80211_IFCC_BEACON) {
+                struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
+                if (!beacon)
+                        return -ENOMEM;
+                rc = iwl3945_mac_beacon_update(hw, beacon);
+                if (rc)
+                        return rc;
+        }
+
         /* XXX: this MUST use conf->mac_addr */
 
         if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
-            (!conf->beacon || !conf->ssid_len)) {
+            (!conf->ssid_len)) {
                 IWL_DEBUG_MAC80211
                     ("Leaving in AP mode because HostAPD is not ready.\n");
                 return 0;
@@ -6959,7 +6973,7 @@ static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
                 if (priv->ibss_beacon)
                         dev_kfree_skb(priv->ibss_beacon);
 
-                priv->ibss_beacon = conf->beacon;
+                priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
         }
 
         if (iwl3945_is_rfkill(priv))
@@ -7940,7 +7954,6 @@ static struct ieee80211_ops iwl3945_hw_ops = {
         .conf_tx = iwl3945_mac_conf_tx,
         .get_tsf = iwl3945_mac_get_tsf,
         .reset_tsf = iwl3945_mac_reset_tsf,
-        .beacon_update = iwl3945_mac_beacon_update,
         .hw_scan = iwl3945_mac_hw_scan
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 7f65d9123b2..d6fe0ded59d 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -2912,6 +2912,9 @@ static void iwl4965_config_ap(struct iwl_priv *priv)
          * clear sta table, add BCAST sta... */
 }
 
+/* temporary */
+static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
+
 static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
                                         struct ieee80211_vif *vif,
                                     struct ieee80211_if_conf *conf)
@@ -2929,8 +2932,18 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
                 return 0;
         }
 
+        if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
+            conf->changed & IEEE80211_IFCC_BEACON) {
+                struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
+                if (!beacon)
+                        return -ENOMEM;
+                rc = iwl4965_mac_beacon_update(hw, beacon);
+                if (rc)
+                        return rc;
+        }
+
         if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
-            (!conf->beacon || !conf->ssid_len)) {
+            (!conf->ssid_len)) {
                 IWL_DEBUG_MAC80211
                     ("Leaving in AP mode because HostAPD is not ready.\n");
                 return 0;
@@ -2962,7 +2975,7 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
                 if (priv->ibss_beacon)
                         dev_kfree_skb(priv->ibss_beacon);
 
-                priv->ibss_beacon = conf->beacon;
+                priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
         }
 
         if (iwl_is_rfkill(priv))
@@ -4090,7 +4103,6 @@ static struct ieee80211_ops iwl4965_hw_ops = {
         .get_tx_stats = iwl4965_mac_get_tx_stats,
         .conf_tx = iwl4965_mac_conf_tx,
         .reset_tsf = iwl4965_mac_reset_tsf,
-        .beacon_update = iwl4965_mac_beacon_update,
         .bss_info_changed = iwl4965_bss_info_changed,
         .ampdu_action = iwl4965_mac_ampdu_action,
         .hw_scan = iwl4965_mac_hw_scan
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index ee953ca0c6a..89b874ca610 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1581,7 +1581,6 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = {
         .conf_tx                = rt2400pci_conf_tx,
         .get_tx_stats           = rt2x00mac_get_tx_stats,
         .get_tsf                = rt2400pci_get_tsf,
-        .beacon_update          = rt2400pci_beacon_update,
         .tx_last_beacon         = rt2400pci_tx_last_beacon,
 };
 
@@ -1601,6 +1600,7 @@ static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
         .write_tx_data          = rt2x00pci_write_tx_data,
         .kick_tx_queue          = rt2400pci_kick_tx_queue,
         .fill_rxdone            = rt2400pci_fill_rxdone,
+        .beacon_update          = rt2400pci_beacon_update,
         .config_filter          = rt2400pci_config_filter,
         .config_intf            = rt2400pci_config_intf,
         .config_erp             = rt2400pci_config_erp,
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 0423c251c78..a64bb18322e 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1875,7 +1875,6 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = {
         .conf_tx                = rt2x00mac_conf_tx,
         .get_tx_stats           = rt2x00mac_get_tx_stats,
         .get_tsf                = rt2500pci_get_tsf,
-        .beacon_update          = rt2500pci_beacon_update,
         .tx_last_beacon         = rt2500pci_tx_last_beacon,
 };
 
@@ -1895,6 +1894,7 @@ static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
         .write_tx_data          = rt2x00pci_write_tx_data,
         .kick_tx_queue          = rt2500pci_kick_tx_queue,
         .fill_rxdone            = rt2500pci_fill_rxdone,
+        .beacon_update          = rt2500pci_beacon_update,
         .config_filter          = rt2500pci_config_filter,
         .config_intf            = rt2500pci_config_intf,
         .config_erp             = rt2500pci_config_erp,
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 0dd1cb537b9..8ce1726d750 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1775,7 +1775,6 @@ static const struct ieee80211_ops rt2500usb_mac80211_ops = {
         .bss_info_changed       = rt2x00mac_bss_info_changed,
         .conf_tx                = rt2x00mac_conf_tx,
         .get_tx_stats           = rt2x00mac_get_tx_stats,
-        .beacon_update          = rt2500usb_beacon_update,
 };
 
 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
@@ -1793,6 +1792,7 @@ static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
         .get_tx_data_len        = rt2500usb_get_tx_data_len,
         .kick_tx_queue          = rt2500usb_kick_tx_queue,
         .fill_rxdone            = rt2500usb_fill_rxdone,
+        .beacon_update          = rt2500usb_beacon_update,
         .config_filter          = rt2500usb_config_filter,
         .config_intf            = rt2500usb_config_intf,
         .config_erp             = rt2500usb_config_erp,
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index c07d9ef383f..9ad3ce43e6c 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -534,6 +534,8 @@ struct rt2x00lib_ops {
         /*
          * Configuration handlers.
          */
+        int (*beacon_update) (struct ieee80211_hw *hw, struct sk_buff *bcn);
+
         void (*config_filter) (struct rt2x00_dev *rt2x00dev,
                                const unsigned int filter_flags);
         void (*config_intf) (struct rt2x00_dev *rt2x00dev,
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index b48c04e80a3..1b7f87799a7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -409,7 +409,6 @@ static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac,
 {
         struct rt2x00_dev *rt2x00dev = data;
         struct rt2x00_intf *intf = vif_to_intf(vif);
-        struct sk_buff *skb;
         struct ieee80211_bss_conf conf;
         int delayed_flags;
 
@@ -436,10 +435,11 @@ static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac,
                 return;
 
         if (delayed_flags & DELAYED_UPDATE_BEACON) {
-                skb = ieee80211_beacon_get(rt2x00dev->hw, vif);
-                if (skb &&
-                    rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, skb))
-                        dev_kfree_skb(skb);
+                struct ieee80211_if_conf conf;
+                conf.bssid = conf.ssid = NULL;
+                conf.ssid_len = 0;
+                conf.changed = IEEE80211_IFCC_BEACON;
+                rt2x00dev->ops->hw->config_interface(rt2x00dev->hw, vif, &conf);
         }
 
         if (delayed_flags & DELAYED_CONFIG_ERP)
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 3a1fb6d47e5..84b51f49175 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -348,6 +348,7 @@ int rt2x00mac_config_interface(struct ieee80211_hw *hw,
 {
         struct rt2x00_dev *rt2x00dev = hw->priv;
         struct rt2x00_intf *intf = vif_to_intf(vif);
+        struct sk_buff *beacon;
         int status;
 
         /*
@@ -363,8 +364,11 @@ int rt2x00mac_config_interface(struct ieee80211_hw *hw,
          * If the interface does not work in master mode,
          * then the bssid value in the interface structure
          * should now be set.
+         *
+         * conf->bssid can be NULL if coming from the internal
+         * beacon update routine.
          */
-        if (conf->type != IEEE80211_IF_TYPE_AP)
+        if (conf->bssid && vif->type != IEEE80211_IF_TYPE_AP)
                 memcpy(&intf->bssid, conf->bssid, ETH_ALEN);
 
         spin_unlock(&intf->lock);
@@ -375,17 +379,23 @@ int rt2x00mac_config_interface(struct ieee80211_hw *hw,
          * values as arguments we make keep access to rt2x00_intf thread safe
          * even without the lock.
          */
-        rt2x00lib_config_intf(rt2x00dev, intf, conf->type, NULL, conf->bssid);
+        rt2x00lib_config_intf(rt2x00dev, intf, vif->type, NULL, conf->bssid);
 
         /*
-         * We only need to initialize the beacon when master mode is enabled.
+         * We only need to initialize the beacon when in master/ibss mode.
          */
-        if (conf->type != IEEE80211_IF_TYPE_AP || !conf->beacon)
+        if ((vif->type != IEEE80211_IF_TYPE_AP &&
+             vif->type != IEEE80211_IF_TYPE_IBSS) ||
+            !(conf->changed & IEEE80211_IFCC_BEACON))
                 return 0;
 
-        status = rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, conf->beacon);
+        beacon = ieee80211_beacon_get(rt2x00dev->hw, vif);
+        if (!beacon)
+                return -ENOMEM;
+
+        status = rt2x00dev->ops->lib->beacon_update(rt2x00dev->hw, beacon);
         if (status)
-                dev_kfree_skb(conf->beacon);
+                dev_kfree_skb(beacon);
 
         return status;
 }
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index bbf1048f640..852d193a11a 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2427,7 +2427,6 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = {
         .conf_tx                = rt2x00mac_conf_tx,
         .get_tx_stats           = rt2x00mac_get_tx_stats,
         .get_tsf                = rt61pci_get_tsf,
-        .beacon_update          = rt61pci_beacon_update,
 };
 
 static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
@@ -2449,6 +2448,7 @@ static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
         .write_tx_data          = rt2x00pci_write_tx_data,
         .kick_tx_queue          = rt61pci_kick_tx_queue,
         .fill_rxdone            = rt61pci_fill_rxdone,
+        .beacon_update          = rt61pci_beacon_update,
         .config_filter          = rt61pci_config_filter,
         .config_intf            = rt61pci_config_intf,
         .config_erp             = rt61pci_config_erp,
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 3ef318e098e..65720097242 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2031,7 +2031,6 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = {
         .conf_tx                = rt2x00mac_conf_tx,
         .get_tx_stats           = rt2x00mac_get_tx_stats,
         .get_tsf                = rt73usb_get_tsf,
-        .beacon_update          = rt73usb_beacon_update,
 };
 
 static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
@@ -2052,6 +2051,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
         .get_tx_data_len        = rt73usb_get_tx_data_len,
         .kick_tx_queue          = rt73usb_kick_tx_queue,
         .fill_rxdone            = rt73usb_fill_rxdone,
+        .beacon_update          = rt73usb_beacon_update,
         .config_filter          = rt73usb_config_filter,
         .config_intf            = rt73usb_config_intf,
         .config_erp             = rt73usb_config_erp,
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 665f76af2fe..68e2749b2ce 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -727,15 +727,19 @@ static int zd_op_config_interface(struct ieee80211_hw *hw,
         if (mac->type == IEEE80211_IF_TYPE_MESH_POINT ||
             mac->type == IEEE80211_IF_TYPE_IBSS) {
                 associated = true;
-                if (conf->beacon) {
-                        r = zd_mac_config_beacon(hw, conf->beacon);
+                if (conf->changed & IEEE80211_IFCC_BEACON) {
+                        struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
+
+                        if (!beacon)
+                                return -ENOMEM;
+                        r = zd_mac_config_beacon(hw, beacon);
                         if (r < 0)
                                 return r;
                         r = zd_set_beacon_interval(&mac->chip, BCN_MODE_IBSS |
                                         hw->conf.beacon_int);
                         if (r < 0)
                                 return r;
-                        kfree_skb(conf->beacon);
+                        kfree_skb(beacon);
                 }
         } else
                 associated = is_valid_ether_addr(conf->bssid);
@@ -889,17 +893,6 @@ static void zd_op_bss_info_changed(struct ieee80211_hw *hw,
         }
 }
 
-static int zd_op_beacon_update(struct ieee80211_hw *hw,
-                               struct sk_buff *skb)
-{
-        struct zd_mac *mac = zd_hw_mac(hw);
-        zd_mac_config_beacon(hw, skb);
-        kfree_skb(skb);
-        zd_set_beacon_interval(&mac->chip, BCN_MODE_IBSS |
-                                        hw->conf.beacon_int);
-        return 0;
-}
-
 static const struct ieee80211_ops zd_ops = {
         .tx                     = zd_op_tx,
         .start                  = zd_op_start,
@@ -910,7 +903,6 @@ static const struct ieee80211_ops zd_ops = {
         .config_interface       = zd_op_config_interface,
         .configure_filter       = zd_op_configure_filter,
         .bss_info_changed       = zd_op_bss_info_changed,
-        .beacon_update          = zd_op_beacon_update,
 };
 
 struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)