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, 2 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-sv-open.c b/drivers/net/wireless/iwlwifi/iwl-sv-open.c
index d47483561a8..b11f60de4f1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sv-open.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sv-open.c
@@ -181,12 +181,10 @@ void iwl_testmode_init(struct iwl_priv *priv)
 
 static void iwl_trace_cleanup(struct iwl_priv *priv)
 {
-        struct device *dev = priv->bus.dev;
-
         if (priv->testmode_trace.trace_enabled) {
                 if (priv->testmode_trace.cpu_addr &&
                     priv->testmode_trace.dma_addr)
-                        dma_free_coherent(dev,
+                        dma_free_coherent(priv->bus->dev,
                                         priv->testmode_trace.total_size,
                                         priv->testmode_trace.cpu_addr,
                                         priv->testmode_trace.dma_addr);
@@ -486,7 +484,7 @@ static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb)
         struct iwl_priv *priv = hw->priv;
         struct sk_buff *skb;
         int status = 0;
-        struct device *dev = priv->bus.dev;
+        struct device *dev = priv->bus->dev;
 
         switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
         case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: