1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 7555c3413384..32acaf7ff622 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -279,8 +279,15 @@ static void ath9k_rx_prepare(struct ath_softc *sc,
         rx_status->rate_idx = ath_rate2idx(sc, (status->rateKbps / 100));
         rx_status->antenna = status->antenna;
 
-        /* XXX Fix me, 64 cannot be the max rssi value, rigure it out */
-        rx_status->qual = status->rssi * 100 / 64;
+        /* at 45 you will be able to use MCS 15 reliably. A more elaborate
+         * scheme can be used here but it requires tables of SNR/throughput for
+         * each possible mode used. */
+        rx_status->qual = status->rssi * 100 / 45;
+
+        /* rssi can be more than 45 though, anything above that
+         * should be considered at 100% */
+        if (rx_status->qual > 100)
+                rx_status->qual = 100;
 
         if (status->flags & ATH_RX_MIC_ERROR)
                 rx_status->flag |= RX_FLAG_MMIC_ERROR;