PCI: centralize the capabilities code in probe.c
Zhao, Yu [Mon, 13 Oct 2008 11:49:55 +0000 (19:49 +0800)]
This patch centralizes the initialization and release functions of
various PCI capabilities in probe.c, which makes the introduction
of new capability support functions cleaner in the future.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

drivers/pci/probe.c

index 49599ac..8c158b9 100644 (file)
@@ -842,6 +842,11 @@ static int pci_setup_device(struct pci_dev * dev)
        return 0;
 }
 
+static void pci_release_capabilities(struct pci_dev *dev)
+{
+       pci_vpd_release(dev);
+}
+
 /**
  * pci_release_dev - free a pci device structure when all users of it are finished.
  * @dev: device that's been disconnected
@@ -854,7 +859,7 @@ static void pci_release_dev(struct device *dev)
        struct pci_dev *pci_dev;
 
        pci_dev = to_pci_dev(dev);
-       pci_vpd_release(pci_dev);
+       pci_release_capabilities(pci_dev);
        kfree(pci_dev);
 }
 
@@ -935,8 +940,6 @@ struct pci_dev *alloc_pci_dev(void)
 
        INIT_LIST_HEAD(&dev->bus_list);
 
-       pci_msi_init_pci_dev(dev);
-
        return dev;
 }
 EXPORT_SYMBOL(alloc_pci_dev);
@@ -1009,11 +1012,21 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)
                return NULL;
        }
 
-       pci_vpd_pci22_init(dev);
-
        return dev;
 }
 
+static void pci_init_capabilities(struct pci_dev *dev)
+{
+       /* MSI/MSI-X list */
+       pci_msi_init_pci_dev(dev);
+
+       /* Power Management */
+       pci_pm_init(dev);
+
+       /* Vital Product Data */
+       pci_vpd_pci22_init(dev);
+}
+
 void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
 {
        device_initialize(&dev->dev);
@@ -1030,8 +1043,8 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
        /* Fix up broken headers */
        pci_fixup_device(pci_fixup_header, dev);
 
-       /* Initialize power management of the device */
-       pci_pm_init(dev);
+       /* Initialize various capabilities */
+       pci_init_capabilities(dev);
 
        /*
         * Add the device to our list of discovered devices