iwlwifi: pass the iwl_config_trans_params when needed

Instead of accessing the iwl_config_trans_params from the cfg that is
stored in the trans struct, pass this structure directly to functions
that need it during trans_alloc.  This will be useful to isolate the
elements needed during allocation and pass them separately before the
actual cfg struct is known.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/pcie/drv.c

@@ -1000,7 +1000,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (WARN_ONCE(!cfg->trans.csr, "CSR addresses aren't configured\n"))
 		return -EINVAL;
 
-	iwl_trans = iwl_trans_pcie_alloc(pdev, ent, cfg);
+	iwl_trans = iwl_trans_pcie_alloc(pdev, ent, &cfg->trans);
 	if (IS_ERR(iwl_trans))
 		return PTR_ERR(iwl_trans);
 

drivers/net/wireless/intel/iwlwifi/pcie/internal.h

@@ -635,9 +635,10 @@ iwl_trans_pcie_get_trans(struct iwl_trans_pcie *trans_pcie)
  * Convention: trans API functions: iwl_trans_pcie_XXX
  *	Other functions: iwl_pcie_XXX
  */
-struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
-				       const struct pci_device_id *ent,
-				       const struct iwl_cfg *cfg);
+struct iwl_trans
+*iwl_trans_pcie_alloc(struct pci_dev *pdev,
+		      const struct pci_device_id *ent,
+		      const struct iwl_cfg_trans_params *cfg_trans);
 void iwl_trans_pcie_free(struct iwl_trans *trans);
 
 /*****************************************************

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

@@ -3373,8 +3373,8 @@ static const struct iwl_trans_ops trans_ops_pcie_gen2 = {
 };
 
 struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
-				       const struct pci_device_id *ent,
-				       const struct iwl_cfg *cfg)
+			       const struct pci_device_id *ent,
+			       const struct iwl_cfg_trans_params *cfg_trans)
 {
 	struct iwl_trans_pcie *trans_pcie;
 	struct iwl_trans *trans;
@@ -3384,7 +3384,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	if (ret)
 		return ERR_PTR(ret);
 
-	if (cfg->trans.gen2)
+	if (cfg_trans->gen2)
 		trans = iwl_trans_alloc(sizeof(struct iwl_trans_pcie),
 					&pdev->dev, &trans_ops_pcie_gen2);
 	else
@@ -3409,7 +3409,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	}
 	trans_pcie->debug_rfkill = -1;
 
-	if (!cfg->trans.base_params->pcie_l1_allowed) {
+	if (!cfg_trans->base_params->pcie_l1_allowed) {
 		/*
 		 * 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
@@ -3422,7 +3422,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 
 	trans_pcie->def_rx_queue = 0;
 
-	if (cfg->trans.use_tfh) {
+	if (cfg_trans->use_tfh) {
 		addr_size = 64;
 		trans_pcie->max_tbs = IWL_TFH_NUM_TBS;
 		trans_pcie->tfd_size = sizeof(struct iwl_tfh_tfd);
@@ -3484,7 +3484,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	 * "dash" value). To keep hw_rev backwards compatible - we'll store it
 	 * in the old format.
 	 */
-	if (cfg->trans.device_family >= IWL_DEVICE_FAMILY_8000) {
+	if (cfg_trans->device_family >= IWL_DEVICE_FAMILY_8000) {
 		trans->hw_rev = (trans->hw_rev & 0xfff0) |
 				(CSR_HW_REV_STEP(trans->hw_rev << 2) << 2);
 
@@ -3498,7 +3498,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 		 * in-order to recognize C step driver should read chip version
 		 * id located at the AUX bus MISC address space.
 		 */
-		ret = iwl_finish_nic_init(trans, &cfg->trans);
+		ret = iwl_finish_nic_init(trans, cfg_trans);
 		if (ret)
 			goto out_no_pci;
 
@@ -3506,7 +3506,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 
 	IWL_DEBUG_INFO(trans, "HW REV: 0x%0x\n", trans->hw_rev);
 
-	iwl_pcie_set_interrupt_capa(pdev, trans, &cfg->trans);
+	iwl_pcie_set_interrupt_capa(pdev, trans, cfg_trans);
 	trans->hw_id = (pdev->device << 16) + pdev->subsystem_device;
 	snprintf(trans->hw_id_str, sizeof(trans->hw_id_str),
 		 "PCI ID: 0x%04X:0x%04X", pdev->device, pdev->subsystem_device);