[PATCH] powerpc/pseries: EEH Cleanup
This patch removes unnecessary exports, marks functions as static when
possible, and simplifies some list-related code.
Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 9b2b1cb..780fb27 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -865,7 +865,7 @@
* on the CEC architecture, type of the device, on earlier boot
* command-line arguments & etc.
*/
-void eeh_add_device_early(struct device_node *dn)
+static void eeh_add_device_early(struct device_node *dn)
{
struct pci_controller *phb;
struct eeh_early_enable_info info;
@@ -882,7 +882,6 @@
info.buid_lo = BUID_LO(phb->buid);
early_enable_eeh(dn, &info);
}
-EXPORT_SYMBOL_GPL(eeh_add_device_early);
void eeh_add_device_tree_early(struct device_node *dn)
{
@@ -893,20 +892,6 @@
}
EXPORT_SYMBOL_GPL(eeh_add_device_tree_early);
-void eeh_add_device_tree_late(struct pci_bus *bus)
-{
- struct pci_dev *dev;
-
- list_for_each_entry(dev, &bus->devices, bus_list) {
- eeh_add_device_late(dev);
- if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
- struct pci_bus *subbus = dev->subordinate;
- if (subbus)
- eeh_add_device_tree_late(subbus);
- }
- }
-}
-
/**
* eeh_add_device_late - perform EEH initialization for the indicated pci device
* @dev: pci device for which to set up EEH
@@ -914,7 +899,7 @@
* This routine must be used to complete EEH initialization for PCI
* devices that were added after system boot (e.g. hotplug, dlpar).
*/
-void eeh_add_device_late(struct pci_dev *dev)
+static void eeh_add_device_late(struct pci_dev *dev)
{
struct device_node *dn;
struct pci_dn *pdn;
@@ -933,16 +918,33 @@
pci_addr_cache_insert_device (dev);
}
-EXPORT_SYMBOL_GPL(eeh_add_device_late);
+
+void eeh_add_device_tree_late(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ eeh_add_device_late(dev);
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+ struct pci_bus *subbus = dev->subordinate;
+ if (subbus)
+ eeh_add_device_tree_late(subbus);
+ }
+ }
+}
+EXPORT_SYMBOL_GPL(eeh_add_device_tree_late);
/**
* eeh_remove_device - undo EEH setup for the indicated pci device
* @dev: pci device to be removed
*
- * This routine should be when a device is removed from a running
- * system (e.g. by hotplug or dlpar).
+ * This routine should be called when a device is removed from
+ * a running system (e.g. by hotplug or dlpar). It unregisters
+ * the PCI device from the EEH subsystem. I/O errors affecting
+ * this device will no longer be detected after this call; thus,
+ * i/o errors affecting this slot may leave this device unusable.
*/
-void eeh_remove_device(struct pci_dev *dev)
+static void eeh_remove_device(struct pci_dev *dev)
{
struct device_node *dn;
if (!dev || !eeh_subsystem_enabled)
@@ -958,21 +960,17 @@
PCI_DN(dn)->pcidev = NULL;
pci_dev_put (dev);
}
-EXPORT_SYMBOL_GPL(eeh_remove_device);
void eeh_remove_bus_device(struct pci_dev *dev)
{
+ struct pci_bus *bus = dev->subordinate;
+ struct pci_dev *child, *tmp;
+
eeh_remove_device(dev);
- if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
- struct pci_bus *bus = dev->subordinate;
- struct list_head *ln;
- if (!bus)
- return;
- for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
- struct pci_dev *pdev = pci_dev_b(ln);
- if (pdev)
- eeh_remove_bus_device(pdev);
- }
+
+ if (bus && dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+ list_for_each_entry_safe(child, tmp, &bus->devices, bus_list)
+ eeh_remove_bus_device(child);
}
}
EXPORT_SYMBOL_GPL(eeh_remove_bus_device);
diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h
index 5207758..868c713 100644
--- a/include/asm-powerpc/eeh.h
+++ b/include/asm-powerpc/eeh.h
@@ -60,24 +60,10 @@
* device (including config space i/o). Call eeh_add_device_late
* to finish the eeh setup for this device.
*/
-void eeh_add_device_early(struct device_node *);
-void eeh_add_device_late(struct pci_dev *dev);
void eeh_add_device_tree_early(struct device_node *);
void eeh_add_device_tree_late(struct pci_bus *);
/**
- * eeh_remove_device - undo EEH setup for the indicated pci device
- * @dev: pci device to be removed
- *
- * This routine should be called when a device is removed from
- * a running system (e.g. by hotplug or dlpar). It unregisters
- * the PCI device from the EEH subsystem. I/O errors affecting
- * this device will no longer be detected after this call; thus,
- * i/o errors affecting this slot may leave this device unusable.
- */
-void eeh_remove_device(struct pci_dev *);
-
-/**
* eeh_remove_device_recursive - undo EEH for device & children.
* @dev: pci device to be removed
*
@@ -116,12 +102,6 @@
static inline void pci_addr_cache_build(void) { }
-static inline void eeh_add_device_early(struct device_node *dn) { }
-
-static inline void eeh_add_device_late(struct pci_dev *dev) { }
-
-static inline void eeh_remove_device(struct pci_dev *dev) { }
-
static inline void eeh_add_device_tree_early(struct device_node *dn) { }
static inline void eeh_add_device_tree_late(struct pci_bus *bus) { }