iwlwifi: renaming last_used and first_empty
This patch renames queue pointers to write_ptr and read_ptr
instead of first_empty and last_used. This is closer to technical
terminology we everyday use
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index d611281..b8d4343 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -526,14 +526,14 @@
}
/**
- * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.last_used]
+ * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
*
* Does NOT advance any indexes
*/
int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
- struct iwl_tfd_frame *bd = &bd_tmp[txq->q.last_used];
+ struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
struct pci_dev *dev = priv->pci_dev;
int i;
int counter;
@@ -556,12 +556,12 @@
for (i = 1; i < counter; i++) {
pci_unmap_single(dev, le32_to_cpu(bd->pa[i].addr),
le32_to_cpu(bd->pa[i].len), PCI_DMA_TODEVICE);
- if (txq->txb[txq->q.last_used].skb[0]) {
- struct sk_buff *skb = txq->txb[txq->q.last_used].skb[0];
- if (txq->txb[txq->q.last_used].skb[0]) {
+ if (txq->txb[txq->q.read_ptr].skb[0]) {
+ struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[0];
+ if (txq->txb[txq->q.read_ptr].skb[0]) {
/* Can be called from interrupt context */
dev_kfree_skb_any(skb);
- txq->txb[txq->q.last_used].skb[0] = NULL;
+ txq->txb[txq->q.read_ptr].skb[0] = NULL;
}
}
}