iwlagn: simplify the bus architecture

Call iwl_probe with a ready iwl_bus struct. This means that the bus layer
assigns the irq, dev and iwl_bus_ops pointers to iwl_bus before giving it to
iwl_probe.

The device specific struct is allocated together with the common iwl_bus struct
by the bus specific layer. The pointer to the aggregate struct is passed to the
upper layer that holds a pointer to iwl_bus instead of an embedded iw_bus.
The private data given to the PCI subsystem is now iwl_bus and not iwl_priv.

Provide bus_* inliners on the way in order  to simplify the syntax.

Rename iwl-pci.h -> iwl-bus.h since it is bus agnostic and represent the
external of the bus layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
index 7dac6ee23250..27f78fed2ec2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
@@ -182,14 +182,14 @@ static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta,
 
 	/* Unmap tx_cmd */
 	if (num_tbs)
-		dma_unmap_single(priv->bus.dev,
+		dma_unmap_single(priv->bus->dev,
 				dma_unmap_addr(meta, mapping),
 				dma_unmap_len(meta, len),
 				DMA_BIDIRECTIONAL);
 
 	/* Unmap chunks, if any. */
 	for (i = 1; i < num_tbs; i++)
-		dma_unmap_single(priv->bus.dev, iwl_tfd_tb_get_addr(tfd, i),
+		dma_unmap_single(priv->bus->dev, iwl_tfd_tb_get_addr(tfd, i),
 				iwl_tfd_tb_get_len(tfd, i), dma_dir);
 }
 
@@ -640,9 +640,9 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 			le16_to_cpu(out_cmd->hdr.sequence), cmd_size,
 			q->write_ptr, idx, priv->cmd_queue);
 
-	phys_addr = dma_map_single(priv->bus.dev, &out_cmd->hdr, copy_size,
+	phys_addr = dma_map_single(priv->bus->dev, &out_cmd->hdr, copy_size,
 				DMA_BIDIRECTIONAL);
-	if (unlikely(dma_mapping_error(priv->bus.dev, phys_addr))) {
+	if (unlikely(dma_mapping_error(priv->bus->dev, phys_addr))) {
 		idx = -ENOMEM;
 		goto out;
 	}
@@ -662,9 +662,9 @@ static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 			continue;
 		if (!(cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY))
 			continue;
-		phys_addr = dma_map_single(priv->bus.dev, (void *)cmd->data[i],
+		phys_addr = dma_map_single(priv->bus->dev, (void *)cmd->data[i],
 					   cmd->len[i], DMA_BIDIRECTIONAL);
-		if (dma_mapping_error(priv->bus.dev, phys_addr)) {
+		if (dma_mapping_error(priv->bus->dev, phys_addr)) {
 			iwlagn_unmap_tfd(priv, out_meta,
 					 &txq->tfds[q->write_ptr],
 					 DMA_BIDIRECTIONAL);