iwlegacy: use writeb,writel,readl directly

That change will save us some CPU cycles at run time. Having
port-based I/O seems to be not possible for PCIe devices.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index aa8f5c0..63ec05b 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -3655,7 +3655,7 @@
 	/***********************
 	 * 3. Read REV Register
 	 * ********************/
-	il->hw_base = pci_iomap(pdev, 0, 0);
+	il->hw_base = pci_ioremap_bar(pdev, 0);
 	if (!il->hw_base) {
 		err = -ENODEV;
 		goto out_pci_release_regions;
@@ -3780,7 +3780,7 @@
 out_eeprom_free:
 	il_eeprom_free(il);
 out_iounmap:
-	pci_iounmap(pdev, il->hw_base);
+	iounmap(il->hw_base);
 out_pci_release_regions:
 	pci_release_regions(pdev);
 out_pci_disable_device:
@@ -3860,7 +3860,7 @@
 	free_irq(pdev->irq, il);
 	pci_disable_msi(pdev);
 
-	pci_iounmap(pdev, il->hw_base);
+	iounmap(il->hw_base);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);