iwlwifi: use dma_alloc_coherent

commit f36d04abe684f9e2b07c6ebe9f77ae20eb5c1e84 upstream.

Change pci_alloc_consistent() to dma_alloc_coherent() so we can use
GFP_KERNEL flag.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 12 insertions, 11 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 8f407156285..4af2f7a4510 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -60,7 +60,8 @@ static const u16 default_tid_to_tx_fifo[] = {
 static inline int iwl_alloc_dma_ptr(struct iwl_priv *priv,
 				    struct iwl_dma_ptr *ptr, size_t size)
 {
-	ptr->addr = pci_alloc_consistent(priv->pci_dev, size, &ptr->dma);
+	ptr->addr = dma_alloc_coherent(&priv->pci_dev->dev, size, &ptr->dma,
+				       GFP_KERNEL);
 	if (!ptr->addr)
 		return -ENOMEM;
 	ptr->size = size;
@@ -73,7 +74,7 @@ static inline void iwl_free_dma_ptr(struct iwl_priv *priv,
 	if (unlikely(!ptr->addr))
 		return;
 
-	pci_free_consistent(priv->pci_dev, ptr->size, ptr->addr, ptr->dma);
+	dma_free_coherent(&priv->pci_dev->dev, ptr->size, ptr->addr, ptr->dma);
 	memset(ptr, 0, sizeof(*ptr));
 }
 
@@ -146,7 +147,7 @@ void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
 {
 	struct iwl_tx_queue *txq = &priv->txq[txq_id];
 	struct iwl_queue *q = &txq->q;
-	struct pci_dev *dev = priv->pci_dev;
+	struct device *dev = &priv->pci_dev->dev;
 	int i;
 
 	if (q->n_bd == 0)
@@ -163,8 +164,8 @@ void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
 
 	/* De-alloc circular buffer of TFDs */
 	if (txq->q.n_bd)
-		pci_free_consistent(dev, priv->hw_params.tfd_size *
-				    txq->q.n_bd, txq->tfds, txq->q.dma_addr);
+		dma_free_coherent(dev, priv->hw_params.tfd_size *
+				  txq->q.n_bd, txq->tfds, txq->q.dma_addr);
 
 	/* De-alloc array of per-TFD driver data */
 	kfree(txq->txb);
@@ -193,7 +194,7 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
 {
 	struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
 	struct iwl_queue *q = &txq->q;
-	struct pci_dev *dev = priv->pci_dev;
+	struct device *dev = &priv->pci_dev->dev;
 	int i;
 
 	if (q->n_bd == 0)
@@ -205,8 +206,8 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
 
 	/* De-alloc circular buffer of TFDs */
 	if (txq->q.n_bd)
-		pci_free_consistent(dev, priv->hw_params.tfd_size *
-				    txq->q.n_bd, txq->tfds, txq->q.dma_addr);
+		dma_free_coherent(dev, priv->hw_params.tfd_size * txq->q.n_bd,
+				  txq->tfds, txq->q.dma_addr);
 
 	/* deallocate arrays */
 	kfree(txq->cmd);
@@ -297,7 +298,7 @@ static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
 static int iwl_tx_queue_alloc(struct iwl_priv *priv,
 			      struct iwl_tx_queue *txq, u32 id)
 {
-	struct pci_dev *dev = priv->pci_dev;
+	struct device *dev = &priv->pci_dev->dev;
 	size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;
 
 	/* Driver private data, only for Tx (not command) queues,
@@ -316,8 +317,8 @@ static int iwl_tx_queue_alloc(struct iwl_priv *priv,
 
 	/* Circular buffer of transmit frame descriptors (TFDs),
 	 * shared with device */
-	txq->tfds = pci_alloc_consistent(dev, tfd_sz, &txq->q.dma_addr);
-
+	txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr,
+				       GFP_KERNEL);
 	if (!txq->tfds) {
 		IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n", tfd_sz);
 		goto error;