[PATCH] libertas: remove adapter->pkttxctrl

The variable was initialized to 0 and nowhere else changed, so basically
the per-packet TX control wasn't used.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/dev.h

@@ -376,8 +376,6 @@ struct _wlan_adapter {
 
 	struct cmd_ds_802_11_get_log logmsg;
 
-	u32 pkttxctrl;
-
 	u16 txrate;
 	u32 linkmode;
 	u32 radiomode;

drivers/net/wireless/libertas/main.c

@@ -1067,7 +1067,6 @@ static void wlan_init_adapter(wlan_private * priv)
 	adapter->intcounter = 0;
 
 	adapter->currenttxskb = NULL;
-	adapter->pkttxctrl = 0;
 
 	memset(&adapter->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
 	adapter->tx_queue_idx = 0;

drivers/net/wireless/libertas/tx.c

@@ -58,7 +58,6 @@ static u32 convert_radiotap_rate_to_mv(u8 rate)
  */
 static int SendSinglePacket(wlan_private * priv, struct sk_buff *skb)
 {
-	wlan_adapter *adapter = priv->adapter;
 	int ret = 0;
 	struct txpd localtxpd;
 	struct txpd *plocaltxpd = &localtxpd;
@@ -86,9 +85,6 @@ static int SendSinglePacket(wlan_private * priv, struct sk_buff *skb)
 	/* offset of actual data */
 	plocaltxpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
 
-	/* TxCtrl set by user or default */
-	plocaltxpd->tx_control = cpu_to_le32(adapter->pkttxctrl);
-
 	p802x_hdr = skb->data;
 	if (priv->adapter->radiomode == WLAN_RADIOMODE_RADIOTAP) {
 
@@ -99,7 +95,6 @@ static int SendSinglePacket(wlan_private * priv, struct sk_buff *skb)
 		new_rate = convert_radiotap_rate_to_mv(pradiotap_hdr->rate);
 		if (new_rate != 0) {
 			/* use new tx_control[4:0] */
-			new_rate |= (adapter->pkttxctrl & ~0x1f);
 			plocaltxpd->tx_control = cpu_to_le32(new_rate);
 		}