iwlwifi: memory allocation optimization

This patch optimizes memory allocation. The cmd member of
iwl_tx_queue was allocated previously as a continuous block
of memory. This patch allocates separate memory chunks for each command
and maps/unmaps these chunks in the run time.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 1d793c093f1a..56dbc8144a34 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -939,8 +939,8 @@ static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
         len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
 
         if (txq_id != IWL_CMD_QUEUE_NUM) {
-                sta = txq->cmd[txq->q.write_ptr].cmd.tx.sta_id;
-                sec_ctl = txq->cmd[txq->q.write_ptr].cmd.tx.sec_ctl;
+                sta = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id;
+                sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl;
 
                 switch (sec_ctl & TX_CMD_SEC_MSK) {
                 case TX_CMD_SEC_CCM:
@@ -979,7 +979,7 @@ static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
         u8 sta = 0;
 
         if (txq_id != IWL_CMD_QUEUE_NUM)
-                sta = txq->cmd[txq->q.read_ptr].cmd.tx.sta_id;
+                sta = txq->cmd[txq->q.read_ptr]->cmd.tx.sta_id;
 
         shared_data->queues_byte_cnt_tbls[txq_id].tfd_offset[txq->q.read_ptr].
                                         val = cpu_to_le16(1 | (sta << 12));