ath10k: fix invalid survey reporting for QCA99X0

There are three WMI_CHAN_INFO events reported per channel
in QCA99X0 firmware. First one is a notification at the begining
of the channel dwell time with cmd_flag as CHAN_INFO_START(cmd_flag = 0),
second one is a notification at the end of the dwell time with cmd_flag
CHAN_INFO_PRE_COMPLETE (cmd_flag = 2) and the third is the indication
with CHAN_INFO_COMPLETE (cmd_flag = 1) which is the last indication for
the channel. Since there is a new state before the completion, the handler
is to fixed so that the counts are deducted from the ones reported with
CHAN_INFO_START rather than the ones reported with CHAN_INFO_PRE_COMPLETE.
Without this fix there will be lots of 0 msecs reported as active
and busy time.

Signed-off-by: Vasanthakumar Thiagarajan <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 36b8f7148b51..a0a0b0974302 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2412,8 +2412,10 @@ void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb)
 		ar->ch_info_can_report_survey = true;
 	}
 
-	ar->survey_last_rx_clear_count = rx_clear_count;
-	ar->survey_last_cycle_count = cycle_count;
+	if (!(cmd_flags & WMI_CHAN_INFO_FLAG_PRE_COMPLETE)) {
+		ar->survey_last_rx_clear_count = rx_clear_count;
+		ar->survey_last_cycle_count = cycle_count;
+	}
 
 exit:
 	spin_unlock_bh(&ar->data_lock);