staging: vt6656: correct packet types for CTS protect, mode.

commit d971fdd3412f8342747778fb59b8803720ed82b1 upstream.

It appears that the driver still transmits in CTS protect mode even
though it is not enabled in mac80211.

That is both packet types PK_TYPE_11GA and PK_TYPE_11GB both use CTS protect.
The only difference between them GA does not use B rates.

Find if only B rate in GB or GA in protect mode otherwise transmit packets
as PK_TYPE_11A.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/9c1323ff-dbb3-0eaa-43e1-9453f7390dc0@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 50e1c89180409cc50f6e96633dedc46bd3b8ae95..e2fabe818b19bfdf25297dcbc7843a88c5a7b677 100644 (file)
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -52,6 +52,8 @@
 #define RATE_AUTO      12
 
 #define MAX_RATE                       12
+#define VNT_B_RATES    (BIT(RATE_1M) | BIT(RATE_2M) |\
+                       BIT(RATE_5M) | BIT(RATE_11M))
 
 /*
  * device specific

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 4e9cfacf75f29aef034c7016310535f4f6ebae89..ae5fad101d1edbea01c0917567329994d7bb1a60 100644 (file)
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -815,10 +815,14 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
                if (info->band == NL80211_BAND_5GHZ) {
                        pkt_type = PK_TYPE_11A;
                } else {
-                       if (tx_rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
-                               pkt_type = PK_TYPE_11GB;
-                       else
-                               pkt_type = PK_TYPE_11GA;
+                       if (tx_rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
+                               if (priv->basic_rates & VNT_B_RATES)
+                                       pkt_type = PK_TYPE_11GB;
+                               else
+                                       pkt_type = PK_TYPE_11GA;
+                       } else {
+                               pkt_type = PK_TYPE_11A;
+                       }
                }
        } else {
                pkt_type = PK_TYPE_11B;