[PATCH 4.9 13/60] mac80211: fix packet statistics for fast-RX

From: Greg Kroah-Hartman
Date: Mon Jun 19 2017 - 12:08:36 EST

4.9-stable review patch. If anyone has any objections, please let me know.


From: Johannes Berg <johannes.berg@xxxxxxxxx>

commit 0328edc77d4f35014b35f32b46be0a7e16aae74f upstream.

When adding per-CPU statistics, which added statistics back
to mac80211 for the fast-RX path, I evidently forgot to add
the "stats->packets++" line. The reason for that is likely
that I didn't see it since it's done in defragmentation for
the regular RX path.

Add the missing line to properly count received packets in
the fast-RX case.

Fixes: c9c5962b56c1 ("mac80211: enable collecting station statistics per-CPU")
Reported-by: Oren Givon <oren.givon@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

net/mac80211/rx.c | 1 +
1 file changed, 1 insertion(+)

--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3953,6 +3953,7 @@ static bool ieee80211_invoke_fast_rx(str
stats->last_rate = sta_stats_encode_rate(status);

+ stats->packets++;

if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
stats->last_signal = status->signal;