mac80211: add debugfs file for last ack signal

Add a debugfs file showing the signal strength
of the ack frame that is received for the
currently sent tx packet

Signed-off-by: Saravana <saravanad@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 89281d24b094..15669415ee98 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -53,6 +53,7 @@ static const struct file_operations sta_ ##name## _ops = {		\
 STA_FILE(aid, sta.aid, D);
 STA_FILE(dev, sdata->name, S);
 STA_FILE(last_signal, last_signal, D);
+STA_FILE(last_ack_signal, last_ack_signal, D);
 
 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
                               size_t count, loff_t *ppos)
@@ -369,6 +370,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
         DEBUGFS_ADD(dev);
         DEBUGFS_ADD(last_signal);
         DEBUGFS_ADD(ht_capa);
+        DEBUGFS_ADD(last_ack_signal);
 
         DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
         DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);