1 files changed, 16 insertions, 11 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fd8345c20051..70e87600cacc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -95,11 +95,13 @@ static void ieee80211_reconfig_filter(struct work_struct *work)
 
 static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
 {
+        struct ieee80211_sub_if_data *sdata;
         struct ieee80211_channel *chan;
         u32 changed = 0;
         int power;
         enum nl80211_channel_type channel_type;
         u32 offchannel_flag;
+        bool scanning = false;
 
         offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
         if (local->scan_channel) {
@@ -146,16 +148,18 @@ static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
                 changed |= IEEE80211_CONF_CHANGE_SMPS;
         }
 
-        if (test_bit(SCAN_SW_SCANNING, &local->scanning) ||
-            test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
-            test_bit(SCAN_HW_SCANNING, &local->scanning) ||
-            !local->ap_power_level)
-                power = chan->max_power;
-        else
-                power = min(chan->max_power, local->ap_power_level);
+        scanning = test_bit(SCAN_SW_SCANNING, &local->scanning) ||
+                   test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
+                   test_bit(SCAN_HW_SCANNING, &local->scanning);
+        power = chan->max_power;
 
-        if (local->user_power_level >= 0)
-                power = min(power, local->user_power_level);
+        rcu_read_lock();
+        list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+                if (!rcu_access_pointer(sdata->vif.chanctx_conf))
+                        continue;
+                power = min(power, sdata->vif.bss_conf.txpower);
+        }
+        rcu_read_unlock();
 
         if (local->hw.conf.power_level != power) {
                 changed |= IEEE80211_CONF_CHANGE_POWER;
@@ -600,7 +604,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
         wiphy->features |= NL80211_FEATURE_SK_TX_STATUS |
                            NL80211_FEATURE_SAE |
-                           NL80211_FEATURE_HT_IBSS;
+                           NL80211_FEATURE_HT_IBSS |
+                           NL80211_FEATURE_VIF_TXPOWER;
 
         if (!ops->hw_scan)
                 wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN |
@@ -633,7 +638,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
         local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
                                          IEEE80211_RADIOTAP_MCS_HAVE_GI |
                                          IEEE80211_RADIOTAP_MCS_HAVE_BW;
-        local->user_power_level = -1;
+        local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
         wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
 
         INIT_LIST_HEAD(&local->interfaces);