iwlagn: remove drvdata support from bus layer

Since the removal of the sysfs files, it is no
longer necessary to have upper layers control
the drvdata, so let the PCI driver have it for
itself completely.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -3186,9 +3186,9 @@ int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
 	priv = hw->priv;
 	priv->bus = bus;
 	priv->shrd = &priv->_shrd;
+	bus->shrd = priv->shrd;
 	priv->shrd->bus = bus;
 	priv->shrd->priv = priv;
-	bus_set_drv_data(priv->bus, priv->shrd);
 
 	priv->shrd->trans = trans_ops->alloc(priv->shrd);
 	if (priv->shrd->trans == NULL) {
@@ -3387,8 +3387,6 @@ void __devexit iwl_remove(struct iwl_priv * priv)
 
 	iwl_trans_free(trans(priv));
 
-	bus_set_drv_data(priv->bus, NULL);
-
 	iwl_uninit_drv(priv);
 
 	dev_kfree_skb(priv->beacon_skb);

drivers/net/wireless/iwlwifi/iwl-bus.h

@@ -122,7 +122,6 @@ struct iwl_bus;
  * struct iwl_bus_ops - bus specific operations
  * @get_pm_support: must returns true if the bus can go to sleep
  * @apm_config: will be called during the config of the APM
- * @set_drv_data: set the shared data pointer to the bus layer
  * @get_hw_id: prints the hw_id in the provided buffer
  * @write8: write a byte to register at offset ofs
  * @write32: write a dword to register at offset ofs
@@ -131,7 +130,6 @@ struct iwl_bus;
 struct iwl_bus_ops {
 	bool (*get_pm_support)(struct iwl_bus *bus);
 	void (*apm_config)(struct iwl_bus *bus);
-	void (*set_drv_data)(struct iwl_bus *bus, struct iwl_shared *shrd);
 	void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len);
 	void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val);
 	void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val);
@@ -146,6 +144,8 @@ struct iwl_bus_ops {
  * @dev - pointer to struct device * that represents the device
  * @ops - pointer to iwl_bus_ops
  * @shrd - pointer to iwl_shared which holds shared data from the upper layer
+ *	NB: for the time being this needs to be set by the upper layer since
+ *	it allocates the shared data
  * @irq - the irq number for the device
  * @reg_lock - protect hw register access
  */
@@ -172,12 +172,6 @@ static inline void bus_apm_config(struct iwl_bus *bus)
 	bus->ops->apm_config(bus);
 }
 
-static inline void bus_set_drv_data(struct iwl_bus *bus,
-				struct iwl_shared *shrd)
-{
-	bus->ops->set_drv_data(bus, shrd);
-}
-
 static inline void bus_get_hw_id(struct iwl_bus *bus, char buf[], int buf_len)
 {
 	bus->ops->get_hw_id(bus, buf, buf_len);

drivers/net/wireless/iwlwifi/iwl-pci.c

@@ -134,12 +134,6 @@ static void iwl_pci_apm_config(struct iwl_bus *bus)
 	}
 }
 
-static void iwl_pci_set_drv_data(struct iwl_bus *bus, struct iwl_shared *shrd)
-{
-	bus->shrd = shrd;
-	pci_set_drvdata(IWL_BUS_GET_PCI_DEV(bus), shrd);
-}
-
 static void iwl_pci_get_hw_id(struct iwl_bus *bus, char buf[],
 			      int buf_len)
 {
@@ -168,7 +162,6 @@ static u32 iwl_pci_read32(struct iwl_bus *bus, u32 ofs)
 static const struct iwl_bus_ops bus_ops_pci = {
 	.get_pm_support = iwl_pci_is_pm_supported,
 	.apm_config = iwl_pci_apm_config,
-	.set_drv_data = iwl_pci_set_drv_data,
 	.get_hw_id = iwl_pci_get_hw_id,
 	.write8 = iwl_pci_write8,
 	.write32 = iwl_pci_write32,
@@ -393,6 +386,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_bus = IWL_BUS_GET_PCI_BUS(bus);
 	pci_bus->pci_dev = pdev;
 
+	pci_set_drvdata(pdev, bus);
+
 	/* W/A - seems to solve weird behavior. We need to remove this if we
 	 * don't want to stay in L1 all the time. This wastes a lot of power */
 	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
@@ -486,9 +481,9 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 {
-	struct iwl_shared *shrd = pci_get_drvdata(pdev);
-	struct iwl_bus *bus = shrd->bus;
+	struct iwl_bus *bus = pci_get_drvdata(pdev);
 	struct iwl_pci_bus *pci_bus = IWL_BUS_GET_PCI_BUS(bus);
+	struct iwl_shared *shrd = bus->shrd;
 
 	iwl_remove(shrd->priv);
 
@@ -506,7 +501,8 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 static int iwl_pci_suspend(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
-	struct iwl_shared *shrd = pci_get_drvdata(pdev);
+	struct iwl_bus *bus = pci_get_drvdata(pdev);
+	struct iwl_shared *shrd = bus->shrd;
 
 	/* Before you put code here, think about WoWLAN. You cannot check here
 	 * whether WoWLAN is enabled or not, and your code will run even if
@@ -519,7 +515,8 @@ static int iwl_pci_suspend(struct device *device)
 static int iwl_pci_resume(struct device *device)
 {
 	struct pci_dev *pdev = to_pci_dev(device);
-	struct iwl_shared *shrd = pci_get_drvdata(pdev);
+	struct iwl_bus *bus = pci_get_drvdata(pdev);
+	struct iwl_shared *shrd = bus->shrd;
 
 	/* Before you put code here, think about WoWLAN. You cannot check here
 	 * whether WoWLAN is enabled or not, and your code will run even if