iwl3945: kill iwl3945_x2_queue_used

This patch replaces iwl3945_x2_queue_used with iwl_queue_used.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-3945.c

@@ -344,7 +344,7 @@ static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
 	int rate_idx;
 	int fail;
 
-	if ((index >= txq->q.n_bd) || (iwl3945_x2_queue_used(&txq->q, index) == 0)) {
+	if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
 		IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
 			  "is out of range [0-%d] %d %d\n", txq_id,
 			  index, txq->q.n_bd, txq->q.write_ptr,

drivers/net/wireless/iwlwifi/iwl-3945.h

@@ -106,8 +106,6 @@ enum iwl3945_antenna {
 #define	DEFAULT_SHORT_RETRY_LIMIT 7U
 #define	DEFAULT_LONG_RETRY_LIMIT  4U
 
-int iwl3945_x2_queue_used(const struct iwl_queue *q, int i);
-
 #include "iwl-agn-rs.h"
 
 #define IWL_TX_FIFO_AC0	0

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -120,13 +120,6 @@ struct iwl_mod_params iwl3945_mod_params = {
  * (#0-3) for data tx via EDCA.  An additional 2 HCCA queues are unused.
  ***************************************************/
 
-int iwl3945_x2_queue_used(const struct iwl_queue *q, int i)
-{
-	return q->write_ptr > q->read_ptr ?
-		(i >= q->read_ptr && i < q->write_ptr) :
-		!(i < q->read_ptr && i >= q->write_ptr);
-}
-
 /**
  * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
  */
@@ -3079,7 +3072,7 @@ static void iwl3945_cmd_queue_reclaim(struct iwl_priv *priv,
 	struct iwl_queue *q = &txq->q;
 	int nfreed = 0;
 
-	if ((index >= q->n_bd) || (iwl3945_x2_queue_used(q, index) == 0)) {
+	if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
 		IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
 			  "is out of range [0-%d] %d %d.\n", txq_id,
 			  index, q->n_bd, q->write_ptr, q->read_ptr);