rtlwifi: rtl8192su: Fix problem connecting to HT-enabled AP

The driver fails to connect to 802.11n-enabled APs. The patch fixes
Bug #42262.

Signed-off-by: George <george0505@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>        [2.6.39+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
index 906e7aa55bc39f40eb0c3743c91a821084d5a934..3e52a5496224ad485c9c6f9c351a266e1d239d25 100644 (file)
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
@@ -549,15 +549,16 @@ void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
                               (tcb_desc->rts_use_shortpreamble ? 1 : 0)
                               : (tcb_desc->rts_use_shortgi ? 1 : 0)));
        if (mac->bw_40) {
-               if (tcb_desc->packet_bw) {
+               if (rate_flag & IEEE80211_TX_RC_DUP_DATA) {
                        SET_TX_DESC_DATA_BW(txdesc, 1);
                        SET_TX_DESC_DATA_SC(txdesc, 3);
+               } else if(rate_flag & IEEE80211_TX_RC_40_MHZ_WIDTH){
+                       SET_TX_DESC_DATA_BW(txdesc, 1);
+                       SET_TX_DESC_DATA_SC(txdesc, mac->cur_40_prime_sc);
                } else {
                        SET_TX_DESC_DATA_BW(txdesc, 0);
-                               if (rate_flag & IEEE80211_TX_RC_DUP_DATA)
-                                       SET_TX_DESC_DATA_SC(txdesc,
-                                                         mac->cur_40_prime_sc);
-                       }
+                       SET_TX_DESC_DATA_SC(txdesc, 0);
+               }
        } else {
                SET_TX_DESC_DATA_BW(txdesc, 0);
                SET_TX_DESC_DATA_SC(txdesc, 0);