1 files changed, 45 insertions, 12 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index d999bf3b84e1..dddedfad5404 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -100,7 +100,7 @@ static void ieee80211_reconfig_filter(struct work_struct *work)
  */
 bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local)
 {
-	struct ieee80211_channel *chan, *scan_chan;
+	struct ieee80211_channel *chan;
 	enum nl80211_channel_type channel_type;
 
 	/* This logic needs to match logic in ieee80211_hw_config */
@@ -114,7 +114,7 @@ bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local)
 		else
 			channel_type = NL80211_CHAN_NO_HT;
 	} else if (local->tmp_channel) {
-		chan = scan_chan = local->tmp_channel;
+		chan = local->tmp_channel;
 		channel_type = local->tmp_channel_type;
 	} else {
 		chan = local->oper_channel;
@@ -126,8 +126,8 @@ bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local)
 		return false;
 
 	/* Check current hardware-config against oper_channel. */
-	if ((local->oper_channel != local->hw.conf.channel) ||
-	    (local->_oper_channel_type != local->hw.conf.channel_type))
+	if (local->oper_channel != local->hw.conf.channel ||
+	    local->_oper_channel_type != local->hw.conf.channel_type)
 		return false;
 
 	return true;
@@ -135,7 +135,7 @@ bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local)
 
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 {
-	struct ieee80211_channel *chan, *scan_chan;
+	struct ieee80211_channel *chan;
 	int ret = 0;
 	int power;
 	enum nl80211_channel_type channel_type;
@@ -143,14 +143,12 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 
 	might_sleep();
 
-	scan_chan = local->scan_channel;
-
 	/* If this off-channel logic ever changes,  ieee80211_on_oper_channel
 	 * may need to change as well.
 	 */
 	offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
-	if (scan_chan) {
-		chan = scan_chan;
+	if (local->scan_channel) {
+		chan = local->scan_channel;
 		/* If scanning on oper channel, use whatever channel-type
 		 * is currently in use.
 		 */
@@ -159,7 +157,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 		else
 			channel_type = NL80211_CHAN_NO_HT;
 	} else if (local->tmp_channel) {
-		chan = scan_chan = local->tmp_channel;
+		chan = local->tmp_channel;
 		channel_type = local->tmp_channel_type;
 	} else {
 		chan = local->oper_channel;
@@ -560,6 +558,19 @@ ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = {
 	},
 };
 
+static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = {
+	.ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR |
+			     IEEE80211_HT_AMPDU_PARM_DENSITY,
+
+	.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
+				IEEE80211_HT_CAP_MAX_AMSDU |
+				IEEE80211_HT_CAP_SGI_40),
+	.mcs = {
+		.rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff,
+			     0xff, 0xff, 0xff, 0xff, 0xff, },
+	},
+};
+
 struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {
@@ -595,7 +606,12 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	wiphy->flags |= WIPHY_FLAG_NETNS_OK |
 			WIPHY_FLAG_4ADDR_AP |
-			WIPHY_FLAG_4ADDR_STATION;
+			WIPHY_FLAG_4ADDR_STATION |
+			WIPHY_FLAG_REPORTS_OBSS |
+			WIPHY_FLAG_OFFCHAN_TX |
+			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
+
+	wiphy->features = NL80211_FEATURE_SK_TX_STATUS;
 
 	if (!ops->set_key)
 		wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
@@ -608,7 +624,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN);
 
-	BUG_ON(!ops->tx);
+	BUG_ON(!ops->tx && !ops->tx_frags);
 	BUG_ON(!ops->start);
 	BUG_ON(!ops->stop);
 	BUG_ON(!ops->config);
@@ -628,6 +644,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	local->user_power_level = -1;
 	local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
 	local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN;
+	wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
 
 	INIT_LIST_HEAD(&local->interfaces);
 
@@ -670,6 +687,11 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	INIT_WORK(&local->sched_scan_stopped_work,
 		  ieee80211_sched_scan_stopped_work);
 
+	spin_lock_init(&local->ack_status_lock);
+	idr_init(&local->ack_status_frames);
+	/* preallocate at least one entry */
+	idr_pre_get(&local->ack_status_frames, GFP_KERNEL);
+
 	sta_info_init(local);
 
 	for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
@@ -1045,6 +1067,13 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_unregister_hw);
 
+static int ieee80211_free_ack_frame(int id, void *p, void *data)
+{
+	WARN_ONCE(1, "Have pending ack frames!\n");
+	kfree_skb(p);
+	return 0;
+}
+
 void ieee80211_free_hw(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
@@ -1055,6 +1084,10 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
 	if (local->wiphy_ciphers_allocated)
 		kfree(local->hw.wiphy->cipher_suites);
 
+	idr_for_each(&local->ack_status_frames,
+		     ieee80211_free_ack_frame, NULL);
+	idr_destroy(&local->ack_status_frames);
+
 	wiphy_free(local->hw.wiphy);
 }
 EXPORT_SYMBOL(ieee80211_free_hw);