rt2x00: Store retry limit values

Store retry limit values in the rt2x00dev structure.
This allows the removal of the FIXME where we assumed
the long retry is only used when working with RTS frames.

Instead we should check the current retry limit values
and decide if the required retry count for this frame
is a long or short retry.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00.h

@@ -802,6 +802,12 @@ struct rt2x00_dev {
 	 */
 	u16 tx_power;
 
+	/*
+	 * Current retry values.
+	 */
+	u8 short_retry;
+	u8 long_retry;
+
 	/*
 	 * Rssi <-> Dbm offset
 	 */

drivers/net/wireless/rt2x00/rt2x00config.c

@@ -194,6 +194,8 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
 
 	rt2x00dev->curr_band = conf->channel->band;
 	rt2x00dev->tx_power = conf->power_level;
+	rt2x00dev->short_retry = conf->short_frame_max_tx_count;
+	rt2x00dev->long_retry = conf->long_frame_max_tx_count;
 
 	rt2x00dev->rx_status.band = conf->channel->band;
 	rt2x00dev->rx_status.freq = conf->channel->center_freq;

drivers/net/wireless/rt2x00/rt2x00queue.c

@@ -231,14 +231,7 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	 * Determine retry information.
 	 */
 	txdesc->retry_limit = tx_info->control.rates[0].count - 1;
-	/*
-	 * XXX: If at this point we knew whether the HW is going to use
-	 *	the RETRY_MODE bit or the retry_limit (currently all
-	 *	use the RETRY_MODE bit) we could do something like b43
-	 *	does, set the RETRY_MODE bit when the RC algorithm is
-	 *	requesting more than the long retry limit.
-	 */
-	if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
+	if (txdesc->retry_limit >= rt2x00dev->long_retry)
 		__set_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags);
 
 	/*