mac80211: Add tx ack signal support in sta info

This allows users to get ack signal strength of
last transmitted frame.

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index d74d44e65bd7..743e89c5926c 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -187,9 +187,16 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
         struct ieee80211_mgmt *mgmt = (void *) skb->data;
         struct ieee80211_local *local = sta->local;
         struct ieee80211_sub_if_data *sdata = sta->sdata;
+        struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
 
-        if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS))
+        if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
                 sta->status_stats.last_ack = jiffies;
+                if (txinfo->status.is_valid_ack_signal) {
+                        sta->status_stats.last_ack_signal =
+                                         (s8)txinfo->status.ack_signal;
+                        sta->status_stats.ack_signal_filled = true;
+                }
+        }
 
         if (ieee80211_is_data_qos(mgmt->frame_control)) {
                 struct ieee80211_hdr *hdr = (void *) skb->data;
@@ -486,7 +493,9 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
                         if (ieee80211_is_nullfunc(hdr->frame_control) ||
                             ieee80211_is_qos_nullfunc(hdr->frame_control))
                                 cfg80211_probe_status(sdata->dev, hdr->addr1,
-                                                      cookie, acked, 0, false,
+                                                      cookie, acked,
+                                                      info->status.ack_signal,
+                                                      info->status.is_valid_ack_signal,
                                                       GFP_ATOMIC);
                         else
                                 cfg80211_mgmt_tx_status(&sdata->wdev, cookie,