[PATCH rtw-next 2/5] wifi: rtlwifi: rtl8192d: report no signal for frames without PHY status

[Ho Jie Feng <hjf3108@gmail.com>]

Only the first frame of an A-MPDU comes with the PHY status.
This makes mac80211 report the correct value when queried from iw.

Test results (2.4 GHz):
   before after
TX 6.1    5.2
RX 29.1   27.1

Signed-off-by: Ho Jie Feng <hjf3108@gmail.com>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8192d/trx_common.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192d/trx_common.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192d/trx_common.c
index 9f9a34492030c6..a8910cdbfa0979 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192d/trx_common.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192d/trx_common.c
@@ -425,6 +425,9 @@ bool rtl92d_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
 						     stats->rx_bufshift);
 		_rtl92d_translate_rx_signal_stuff(hw, skb, stats, pdesc,
 						  p_drvinfo);
+	} else {
+		/* Only the first frame of an A-MPDU has the PHY status. */
+		rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;
 	}
 	/*rx_status->qual = stats->signal; */
 	rx_status->signal = stats->recvsignalpower + 10;
-- 
2.53.0