[PATCH v2] wireless: Set some stats used by /proc/net/wireless (wext)

[greearb@candelatech.com]

From: Ben Greear <greearb@candelatech.com>

Some stats for /proc/net/wireless (and wext in general) are not
being set.  This patch addresses a few of those with values easily
obtained from mac80211 core.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---
v1 -> v2:  Add and use filled flags.

:100644 100644 183739c... 338248d... M	include/net/cfg80211.h
:100644 100644 ecf9b71... 25fb351... M	net/mac80211/cfg.c
:100644 100644 6002265... 12222ee... M	net/wireless/wext-compat.c
 include/net/cfg80211.h     |    4 ++++
 net/mac80211/cfg.c         |    4 +++-
 net/wireless/wext-compat.c |    4 ++++
 3 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 183739c..338248d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -403,6 +403,7 @@ struct station_parameters {
  * @STATION_INFO_TX_PACKETS: @tx_packets filled
  * @STATION_INFO_TX_RETRIES: @tx_retries filled
  * @STATION_INFO_TX_FAILED: @tx_failed filled
+ * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
  */
 enum station_info_flags {
 	STATION_INFO_INACTIVE_TIME	= 1<<0,
@@ -417,6 +418,7 @@ enum station_info_flags {
 	STATION_INFO_TX_PACKETS		= 1<<9,
 	STATION_INFO_TX_RETRIES		= 1<<10,
 	STATION_INFO_TX_FAILED		= 1<<11,
+	STATION_INFO_RX_DROP_MISC	= 1<<12,
 };
 
 /**
@@ -468,6 +470,7 @@ struct rate_info {
  * @tx_packets: packets transmitted to this station
  * @tx_retries: cumulative retry counts
  * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
+ * @rx_dropped_misc:  Dropped for un-specified reason.
  * @generation: generation number for nl80211 dumps.
  *	This number should increase every time the list of stations
  *	changes, i.e. when a station is added or removed, so that
@@ -487,6 +490,7 @@ struct station_info {
 	u32 tx_packets;
 	u32 tx_retries;
 	u32 tx_failed;
+	u32 rx_dropped_misc;
 
 	int generation;
 };
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index ecf9b71..25fb351 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -329,7 +329,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 			STATION_INFO_TX_PACKETS |
 			STATION_INFO_TX_RETRIES |
 			STATION_INFO_TX_FAILED |
-			STATION_INFO_TX_BITRATE;
+			STATION_INFO_TX_BITRATE |
+			STATION_INFO_RX_DROP_MISC;
 
 	sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 	sinfo->rx_bytes = sta->rx_bytes;
@@ -338,6 +339,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	sinfo->tx_packets = sta->tx_packets;
 	sinfo->tx_retries = sta->tx_retry_count;
 	sinfo->tx_failed = sta->tx_retry_failed;
+	sinfo->rx_dropped_misc = sta->rx_dropped;
 
 	if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 	    (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 6002265..12222ee 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1366,6 +1366,10 @@ struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
 	}
 
 	wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
+	if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
+		wstats.discard.misc = sinfo.rx_dropped_misc;
+	if (sinfo.filled & STATION_INFO_TX_FAILED)
+		wstats.discard.retries = sinfo.tx_failed;
 
 	return &wstats;
 }
-- 
1.7.2.2