mac80211: make station management completely depend on vif

The station management currently uses the virtual
interface, but you cannot add the same station to
multiple virtual interfaces if you're communicating
with it in multiple ways.

This restriction should be lifted so that in the
future we can, for instance, support bluetooth 3
with an access point that mac80211 is already
associated to.

We can do that by requiring all sta_info_get users
to provide the virtual interface and making the RX
code aware that an address may match more than one
station struct. Thanks to the previous patches this
one isn't all that large and except for the RX and
TX status paths changes has low complexity.

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

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 51c7dc3c4c3bac28e849dfd31fb5501ce858e82e..f16d49d474b4c962032a8a996e9df99cbd91796e 100644 (file)
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -83,12 +83,11 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid,
                                        u16 initiator, u16 reason)
 {
-       struct ieee80211_local *local = sdata->local;
        struct sta_info *sta;
 
        rcu_read_lock();
 
-       sta = sta_info_get(local, ra);
+       sta = sta_info_get(sdata, ra);
        if (!sta) {
                rcu_read_unlock();
                return;

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 5e3a7eccef5ae4c7a52dd65a3e8f310183582433..b05de532c37933e1228ec108b91dc971ed82494c 100644 (file)
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -441,7 +441,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid)
        }
 
        rcu_read_lock();
-       sta = sta_info_get(local, ra);
+       sta = sta_info_get(sdata, ra);
        if (!sta) {
                rcu_read_unlock();
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -564,7 +564,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
        rcu_read_lock();
-       sta = sta_info_get(local, ra);
+       sta = sta_info_get(sdata, ra);
        if (!sta) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
                printk(KERN_DEBUG "Could not find station: %pM\n", ra);

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 93ee1fd5c08dd6674152072e9045c48cb0863663..14e1f4015a729aa6860bf56a6dc65081aa873d97 100644 (file)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -150,7 +150,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
        rcu_read_lock();
 
        if (mac_addr) {
-               sta = sta_info_get(sdata->local, mac_addr);
+               sta = sta_info_get(sdata, mac_addr);
                if (!sta) {
                        ieee80211_key_free(key);
                        err = -ENOENT;
@@ -181,7 +181,7 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
        if (mac_addr) {
                ret = -ENOENT;
 
-               sta = sta_info_get(sdata->local, mac_addr);
+               sta = sta_info_get(sdata, mac_addr);
                if (!sta)
                        goto out_unlock;
 
@@ -228,7 +228,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
        rcu_read_lock();
 
        if (mac_addr) {
-               sta = sta_info_get(sdata->local, mac_addr);
+               sta = sta_info_get(sdata, mac_addr);
                if (!sta)
                        goto out;
 
@@ -414,15 +414,13 @@ static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
                                 u8 *mac, struct station_info *sinfo)
 {
-       struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
        struct sta_info *sta;
        int ret = -ENOENT;
 
        rcu_read_lock();
 
-       /* XXX: verify sta->dev == dev */
-
-       sta = sta_info_get(local, mac);
+       sta = sta_info_get(sdata, mac);
        if (sta) {
                ret = 0;
                sta_set_sinfo(sta, sinfo);
@@ -778,8 +776,7 @@ static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
        if (mac) {
                rcu_read_lock();
 
-               /* XXX: get sta belonging to dev */
-               sta = sta_info_get(local, mac);
+               sta = sta_info_get(sdata, mac);
                if (!sta) {
                        rcu_read_unlock();
                        return -ENOENT;
@@ -800,14 +797,14 @@ static int ieee80211_change_station(struct wiphy *wiphy,
                                    u8 *mac,
                                    struct station_parameters *params)
 {
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
        struct ieee80211_local *local = wiphy_priv(wiphy);
        struct sta_info *sta;
        struct ieee80211_sub_if_data *vlansdata;
 
        rcu_read_lock();
 
-       /* XXX: get sta belonging to dev */
-       sta = sta_info_get(local, mac);
+       sta = sta_info_get(sdata, mac);
        if (!sta) {
                rcu_read_unlock();
                return -ENOENT;
@@ -846,7 +843,6 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
                                 u8 *dst, u8 *next_hop)
 {
-       struct ieee80211_local *local = wiphy_priv(wiphy);
        struct ieee80211_sub_if_data *sdata;
        struct mesh_path *mpath;
        struct sta_info *sta;
@@ -855,7 +851,7 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
        rcu_read_lock();
-       sta = sta_info_get(local, next_hop);
+       sta = sta_info_get(sdata, next_hop);
        if (!sta) {
                rcu_read_unlock();
                return -ENOENT;
@@ -894,7 +890,6 @@ static int ieee80211_change_mpath(struct wiphy *wiphy,
                                    struct net_device *dev,
                                    u8 *dst, u8 *next_hop)
 {
-       struct ieee80211_local *local = wiphy_priv(wiphy);
        struct ieee80211_sub_if_data *sdata;
        struct mesh_path *mpath;
        struct sta_info *sta;
@@ -903,7 +898,7 @@ static int ieee80211_change_mpath(struct wiphy *wiphy,
 
        rcu_read_lock();
 
-       sta = sta_info_get(local, next_hop);
+       sta = sta_info_get(sdata, next_hop);
        if (!sta) {
                rcu_read_unlock();
                return -ENOENT;

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 10d13856f86c5f338c2923e887e34ecf090f35d8..1925be9b82fbe6549280ad0ea09642f00e1b4e06 100644 (file)
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -252,7 +252,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
                rcu_read_lock();
 
-               sta = sta_info_get(local, mgmt->sa);
+               sta = sta_info_get(sdata, mgmt->sa);
                if (sta) {
                        u32 prev_rates;
 

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 659a42d529e3cbcd20100452e018b5584fa970a9..ac1a777674f659a2489fc5a4977be4f7b65c4ca8 100644 (file)
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -421,7 +421,7 @@ void ieee80211_key_link(struct ieee80211_key *key,
                         */
 
                        /* same here, the AP could be using QoS */
-                       ap = sta_info_get(key->local, key->sdata->u.mgd.bssid);
+                       ap = sta_info_get(key->sdata, key->sdata->u.mgd.bssid);
                        if (ap) {
                                if (test_sta_flags(ap, WLAN_STA_WME))
                                        key->conf.flags |=

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 833b2f3670c59ff83c7d3517630706217472f4ee..b836892f0ba9b80ff7baae133141a31bed2ca00f 100644 (file)
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -335,7 +335,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
        bool process = true;
 
        rcu_read_lock();
-       sta = sta_info_get(local, mgmt->sa);
+       sta = sta_info_get(sdata, mgmt->sa);
        if (!sta) {
                rcu_read_unlock();
                return 0;

diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 0f7c6e6a4248cf6300b79e21b363b776dd4a5da7..8fcf56ee774333130e94d9d1eb50a38cef66ceee 100644 (file)
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -234,7 +234,7 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates, struct ieee80211_sub_if_data
 
        rcu_read_lock();
 
-       sta = sta_info_get(local, hw_addr);
+       sta = sta_info_get(sdata, hw_addr);
        if (!sta) {
                sta = mesh_plink_alloc(sdata, hw_addr, rates);
                if (!sta) {
@@ -455,7 +455,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 
        rcu_read_lock();
 
-       sta = sta_info_get(local, mgmt->sa);
+       sta = sta_info_get(sdata, mgmt->sa);
        if (!sta && ftype != PLINK_OPEN) {
                mpl_dbg("Mesh plink: cls or cnf from unknown peer\n");
                rcu_read_unlock();

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 6dc7b5ad9a4125dd94ed496b63dfcb1d719e19c6..c16667a7c8dfcc6b693480b016ea030de9191da6 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -202,7 +202,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
                ieee80211_hw_config(local, 0);
 
                rcu_read_lock();
-               sta = sta_info_get(local, bssid);
+               sta = sta_info_get(sdata, bssid);
                if (sta)
                        rate_control_rate_update(local, sband, sta,
                                                 IEEE80211_RC_HT_CHANGED);
@@ -1070,7 +1070,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
        netif_carrier_off(sdata->dev);
 
        rcu_read_lock();
-       sta = sta_info_get(local, bssid);
+       sta = sta_info_get(sdata, bssid);
        if (sta)
                ieee80211_sta_tear_down_BA_sessions(sta);
        rcu_read_unlock();
@@ -1109,7 +1109,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
        rcu_read_lock();
 
-       sta = sta_info_get(local, bssid);
+       sta = sta_info_get(sdata, bssid);
        if (!sta) {
                rcu_read_unlock();
                return;
@@ -1489,7 +1489,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
        rcu_read_lock();
 
        /* Add STA entry for the AP */
-       sta = sta_info_get(local, wk->bss->cbss.bssid);
+       sta = sta_info_get(sdata, wk->bss->cbss.bssid);
        if (!sta) {
                newsta = true;
 
@@ -1857,7 +1857,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 
                rcu_read_lock();
 
-               sta = sta_info_get(local, bssid);
+               sta = sta_info_get(sdata, bssid);
                if (WARN_ON(!sta)) {
                        rcu_read_unlock();
                        return;

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index f237df408378c514e567676eb2272f659f8b3067..5bae28693da865416854f40adae5b237f5e70616 100644 (file)
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1472,7 +1472,6 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 {
        struct ieee80211_sub_if_data *sdata = rx->sdata;
        struct net_device *dev = sdata->dev;
-       struct ieee80211_local *local = rx->local;
        struct sk_buff *skb, *xmit_skb;
        struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
        struct sta_info *dsta;
@@ -1495,8 +1494,8 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
                                printk(KERN_DEBUG "%s: failed to clone "
                                       "multicast frame\n", dev->name);
                } else {
-                       dsta = sta_info_get(local, skb->data);
-                       if (dsta && dsta->sdata->dev == dev) {
+                       dsta = sta_info_get(sdata, skb->data);
+                       if (dsta) {
                                /*
                                 * The destination station is associated to
                                 * this AP (in this VLAN), so send the frame
@@ -2363,6 +2362,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
        int prepares;
        struct ieee80211_sub_if_data *prev = NULL;
        struct sk_buff *skb_new;
+       struct sta_info *sta, *tmp;
+       bool found_sta = false;
 
        hdr = (struct ieee80211_hdr *)skb->data;
        memset(&rx, 0, sizeof(rx));
@@ -2379,68 +2380,76 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
        ieee80211_parse_qos(&rx);
        ieee80211_verify_alignment(&rx);
 
-       rx.sta = sta_info_get(local, hdr->addr2);
-       if (rx.sta)
-               rx.sdata = rx.sta->sdata;
-
-       if (rx.sdata && ieee80211_is_data(hdr->frame_control)) {
-               rx.flags |= IEEE80211_RX_RA_MATCH;
-               prepares = prepare_for_handlers(rx.sdata, &rx, hdr);
-               if (prepares) {
-                       if (status->flag & RX_FLAG_MMIC_ERROR) {
-                               if (rx.flags & IEEE80211_RX_RA_MATCH)
-                                       ieee80211_rx_michael_mic_report(hdr, &rx);
-                       } else
-                               prev = rx.sdata;
+       if (ieee80211_is_data(hdr->frame_control)) {
+               for_each_sta_info(local, hdr->addr2, sta, tmp) {
+                       rx.sta = sta;
+                       found_sta = true;
+                       rx.sdata = sta->sdata;
+
+                       rx.flags |= IEEE80211_RX_RA_MATCH;
+                       prepares = prepare_for_handlers(rx.sdata, &rx, hdr);
+                       if (prepares) {
+                               if (status->flag & RX_FLAG_MMIC_ERROR) {
+                                       if (rx.flags & IEEE80211_RX_RA_MATCH)
+                                               ieee80211_rx_michael_mic_report(hdr, &rx);
+                               } else
+                                       prev = rx.sdata;
+                       }
                }
-       } else list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-               if (!netif_running(sdata->dev))
-                       continue;
+       }
+       if (!found_sta) {
+               list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+                       if (!netif_running(sdata->dev))
+                               continue;
 
-               if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
-                   sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-                       continue;
+                       if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
+                           sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+                               continue;
 
-               rx.flags |= IEEE80211_RX_RA_MATCH;
-               prepares = prepare_for_handlers(sdata, &rx, hdr);
+                       rx.sta = sta_info_get(sdata, hdr->addr2);
 
-               if (!prepares)
-                       continue;
+                       rx.flags |= IEEE80211_RX_RA_MATCH;
+                       prepares = prepare_for_handlers(sdata, &rx, hdr);
 
-               if (status->flag & RX_FLAG_MMIC_ERROR) {
-                       rx.sdata = sdata;
-                       if (rx.flags & IEEE80211_RX_RA_MATCH)
-                               ieee80211_rx_michael_mic_report(hdr, &rx);
-                       continue;
-               }
+                       if (!prepares)
+                               continue;
 
-               /*
-                * frame is destined for this interface, but if it's not
-                * also for the previous one we handle that after the
-                * loop to avoid copying the SKB once too much
-                */
+                       if (status->flag & RX_FLAG_MMIC_ERROR) {
+                               rx.sdata = sdata;
+                               if (rx.flags & IEEE80211_RX_RA_MATCH)
+                                       ieee80211_rx_michael_mic_report(hdr,
+                                                                       &rx);
+                               continue;
+                       }
 
-               if (!prev) {
-                       prev = sdata;
-                       continue;
-               }
+                       /*
+                        * frame is destined for this interface, but if it's
+                        * not also for the previous one we handle that after
+                        * the loop to avoid copying the SKB once too much
+                        */
 
-               /*
-                * frame was destined for the previous interface
-                * so invoke RX handlers for it
-                */
+                       if (!prev) {
+                               prev = sdata;
+                               continue;
+                       }
 
-               skb_new = skb_copy(skb, GFP_ATOMIC);
-               if (!skb_new) {
-                       if (net_ratelimit())
-                               printk(KERN_DEBUG "%s: failed to copy "
-                                      "multicast frame for %s\n",
-                                      wiphy_name(local->hw.wiphy),
-                                      prev->dev->name);
-                       continue;
+                       /*
+                        * frame was destined for the previous interface
+                        * so invoke RX handlers for it
+                        */
+
+                       skb_new = skb_copy(skb, GFP_ATOMIC);
+                       if (!skb_new) {
+                               if (net_ratelimit())
+                                       printk(KERN_DEBUG "%s: failed to copy "
+                                              "multicast frame for %s\n",
+                                              wiphy_name(local->hw.wiphy),
+                                              prev->dev->name);
+                               continue;
+                       }
+                       ieee80211_invoke_rx_handlers(prev, &rx, skb_new, rate);
+                       prev = sdata;
                }
-               ieee80211_invoke_rx_handlers(prev, &rx, skb_new, rate);
-               prev = sdata;
        }
        if (prev)
                ieee80211_invoke_rx_handlers(prev, &rx, skb, rate);

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 71f370dd24bcee545775eb6f9489c0d14b868aee..c58a23eea58c15f251e105e41224d217600efbe6 100644 (file)
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -103,13 +103,16 @@ static int sta_info_hash_del(struct ieee80211_local *local,
 }
 
 /* protected by RCU */
-struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr)
+struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
+                             const u8 *addr)
 {
+       struct ieee80211_local *local = sdata->local;
        struct sta_info *sta;
 
        sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]);
        while (sta) {
-               if (memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
+               if (sta->sdata == sdata &&
+                   memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
                        break;
                sta = rcu_dereference(sta->hnext);
        }
@@ -377,7 +380,7 @@ int sta_info_insert(struct sta_info *sta)
 
        spin_lock_irqsave(&local->sta_lock, flags);
        /* check if STA exists already */
-       if (sta_info_get(local, sta->sta.addr)) {
+       if (sta_info_get(sdata, sta->sta.addr)) {
                spin_unlock_irqrestore(&local->sta_lock, flags);
                err = -EEXIST;
                goto out_free;
@@ -843,11 +846,12 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 struct ieee80211_sta *ieee80211_find_sta_by_hw(struct ieee80211_hw *hw,
                                               const u8 *addr)
 {
-       struct sta_info *sta = sta_info_get(hw_to_local(hw), addr);
+       struct sta_info *sta, *nxt;
 
-       if (!sta)
-               return NULL;
-       return &sta->sta;
+       /* Just return a random station ... first in list ... */
+       for_each_sta_info(hw_to_local(hw), addr, sta, nxt)
+               return &sta->sta;
+       return NULL;
 }
 EXPORT_SYMBOL_GPL(ieee80211_find_sta_by_hw);
 

diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index b4810f6aa94fa0ccfbe90af0e20f71882418701e..c8208236e8969aac81d0953cc71fdc85b8facd2d 100644 (file)
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -403,9 +403,34 @@ static inline u32 get_sta_flags(struct sta_info *sta)
 #define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
 
 /*
- * Get a STA info, must have be under RCU read lock.
+ * Get a STA info, must be under RCU read lock.
  */
-struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr);
+struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
+                             const u8 *addr);
+
+static inline
+void for_each_sta_info_type_check(struct ieee80211_local *local,
+                                 const u8 *addr,
+                                 struct sta_info *sta,
+                                 struct sta_info *nxt)
+{
+}
+
+#define for_each_sta_info(local, _addr, sta, nxt)                      \
+       for (   /* initialise loop */                                   \
+               sta = rcu_dereference(local->sta_hash[STA_HASH(_addr)]),\
+               nxt = sta ? rcu_dereference(sta->hnext) : NULL;         \
+               /* typecheck */                                         \
+               for_each_sta_info_type_check(local, (_addr), sta, nxt), \
+               /* continue condition */                                \
+               sta;                                                    \
+               /* advance loop */                                      \
+               sta = nxt,                                              \
+               nxt = sta ? rcu_dereference(sta->hnext) : NULL          \
+            )                                                          \
+       /* compare address and run code only if it matches */           \
+       if (memcmp(sta->sta.addr, (_addr), ETH_ALEN) == 0)
+
 /*
  * Get STA info by index, BROKEN!
  */

diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index d78f36c64c7bf72830303af60c3e2d2a71e7ac55..32fe327acf4e2d5394ff3f9d724509ff7b0a64fb 100644 (file)
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -146,7 +146,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
        struct ieee80211_tx_status_rtap_hdr *rthdr;
        struct ieee80211_sub_if_data *sdata;
        struct net_device *prev_dev = NULL;
-       struct sta_info *sta;
+       struct sta_info *sta, *tmp;
        int retry_count = -1, i;
        bool injected;
 
@@ -166,9 +166,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 
        sband = local->hw.wiphy->bands[info->band];
 
-       sta = sta_info_get(local, hdr->addr1);
+       for_each_sta_info(local, hdr->addr1, sta, tmp) {
+               /* skip wrong virtual interface */
+               if (memcmp(hdr->addr2, sta->sdata->dev->dev_addr, ETH_ALEN))
+                       continue;
 
-       if (sta) {
                if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
                    test_sta_flags(sta, WLAN_STA_PS_STA)) {
                        /*

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8834cc93c71691d993339ee99d285e392f7806ba..b913bfc34a9f4a92f7a5c48dbdfcef4aec8b51ee 100644 (file)
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1055,7 +1055,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
        if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
                tx->sta = rcu_dereference(sdata->u.vlan.sta);
        if (!tx->sta)
-               tx->sta = sta_info_get(local, hdr->addr1);
+               tx->sta = sta_info_get(sdata, hdr->addr1);
 
        if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
            (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)) {
@@ -1761,9 +1761,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
         */
        if (!is_multicast_ether_addr(hdr.addr1)) {
                rcu_read_lock();
-               sta = sta_info_get(local, hdr.addr1);
-               /* XXX: in the future, use sdata to look up the sta */
-               if (sta && sta->sdata == sdata)
+               sta = sta_info_get(sdata, hdr.addr1);
+               if (sta)
                        sta_flags = get_sta_flags(sta);
                rcu_read_unlock();
        }
@@ -1922,7 +1921,7 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
                ieee80211_tx(sdata, skb, true);
        } else {
                hdr = (struct ieee80211_hdr *)skb->data;
-               sta = sta_info_get(local, hdr->addr1);
+               sta = sta_info_get(sdata, hdr->addr1);
 
                ret = __ieee80211_tx(local, &skb, sta, true);
                if (ret != IEEE80211_TX_OK)