Merge remote-tracking branch 'wireless/master'

6 files changed, 57 insertions, 4 deletions

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index aa5cc37b4921..d456fa35762b 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -707,6 +707,8 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 	/*
 	 * If the current MPDU is in the right order and nothing else
 	 * is stored we can process it directly, no need to buffer it.
+	 * If it is first but there's something stored, we may be able
+	 * to release frames after this one.
 	 */
 	if (mpdu_seq_num == tid_agg_rx->head_seq_num &&
 	    tid_agg_rx->stored_mpdu_num == 0) {
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index d0311a322ddd..5ec0a7c51b6d 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -698,6 +698,8 @@ static int __must_check __sta_info_destroy(struct sta_info *sta)
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 	cancel_work_sync(&sta->drv_unblock_wk);
 
+	cfg80211_del_sta(sdata->dev, sta->sta.addr, GFP_KERNEL);
+
 	rate_control_remove_sta_debugfs(sta);
 	ieee80211_sta_debugfs_remove(sta);
 
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index b936dd29e92b..3ed3c835fbbf 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -189,16 +189,19 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 	bool acked;
 
 	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
-		/* the HW cannot have attempted that rate */
-		if (i >= hw->max_report_rates) {
+		if (info->status.rates[i].idx < 0) {
+			break;
+		} else if (i >= hw->max_report_rates) {
+			/* the HW cannot have attempted that rate */
 			info->status.rates[i].idx = -1;
 			info->status.rates[i].count = 0;
-		} else if (info->status.rates[i].idx >= 0) {
-			rates_idx = i;
+			break;
 		}
 
 		retry_count += info->status.rates[i].count;
 	}
+	rates_idx = i - 1;
+
 	if (retry_count < 0)
 		retry_count = 0;
 
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index aa5df8865ff7..16881fea4ce6 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -770,6 +770,15 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
 }
 EXPORT_SYMBOL(cfg80211_new_sta);
 
+void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	nl80211_send_sta_del_event(rdev, dev, mac_addr, gfp);
+}
+EXPORT_SYMBOL(cfg80211_del_sta);
+
 struct cfg80211_mgmt_registration {
 	struct list_head list;
 
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4ebce4284e9d..40c90fb461c4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5966,6 +5966,40 @@ void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
 				nl80211_mlme_mcgrp.id, gfp);
 }
 
+void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
+				struct net_device *dev, const u8 *mac_addr,
+				gfp_t gfp)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+				nl80211_mlme_mcgrp.id, gfp);
+	return;
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 		      struct net_device *netdev, u32 nlpid,
 		      int freq, const u8 *buf, size_t len, gfp_t gfp)
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index e3f7fa886966..dcac5cd6f017 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -79,6 +79,9 @@ void nl80211_send_remain_on_channel_cancel(
 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
 			    struct net_device *dev, const u8 *mac_addr,
 			    struct station_info *sinfo, gfp_t gfp);
+void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
+				struct net_device *dev, const u8 *mac_addr,
+				gfp_t gfp);
 
 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 		      struct net_device *netdev, u32 nlpid, int freq,