ath9k_htc: Fix max A-MPDU size handling

Set the maximum ampdu size of a station correctly
in the target by using the ampdu_factor.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index a6402681d58d..fbc238a0b203 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -467,6 +467,7 @@ static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
         struct ath9k_htc_sta *ista;
         int ret, sta_idx;
         u8 cmd_rsp;
+        u16 maxampdu;
 
         if (priv->nstations >= ATH9K_HTC_MAX_STA)
                 return -ENOBUFS;
@@ -490,7 +491,15 @@ static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
 
         tsta.sta_index = sta_idx;
         tsta.vif_index = avp->index;
-        tsta.maxampdu = cpu_to_be16(0xffff);
+
+        if (!sta) {
+                tsta.maxampdu = cpu_to_be16(0xffff);
+        } else {
+                maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+                                 sta->ht_cap.ampdu_factor);
+                tsta.maxampdu = cpu_to_be16(maxampdu);
+        }
+
         if (sta && sta->ht_cap.ht_supported)
                 tsta.flags = cpu_to_be16(ATH_HTC_STA_HT);