From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Since the only existing caller of acpiphp_check_host_bridge(),
which is acpi_pci_root_scan_dependent(), already has a struct
acpi_device pointer needed to obtain the ACPIPHP context, it
doesn't make sense to execute acpi_bus_get_device() on its
handle in acpiphp_handle_to_bridge() just in order to get that
pointer back.
For this reason, modify acpiphp_check_host_bridge() to take
a struct acpi_device pointer as its argument and rearrange the
code accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/acpi/pci_root.c | 2 +-
drivers/pci/hotplug/acpiphp_glue.c | 11 +++--------
include/linux/pci-acpi.h | 4 ++--
3 files changed, 6 insertions(+), 11 deletions(-)
Index: linux-pm/include/linux/pci-acpi.h
===================================================================
--- linux-pm.orig/include/linux/pci-acpi.h
+++ linux-pm/include/linux/pci-acpi.h
@@ -59,12 +59,12 @@ static inline void acpi_pci_slot_remove(
void acpiphp_init(void);
void acpiphp_enumerate_slots(struct pci_bus *bus);
void acpiphp_remove_slots(struct pci_bus *bus);
-void acpiphp_check_host_bridge(acpi_handle handle);
+void acpiphp_check_host_bridge(struct acpi_device *adev);
#else
static inline void acpiphp_init(void) { }
static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
-static inline void acpiphp_check_host_bridge(acpi_handle handle) { }
+static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
#endif
#else /* CONFIG_ACPI */
Index: linux-pm/drivers/acpi/pci_root.c
===================================================================
--- linux-pm.orig/drivers/acpi/pci_root.c
+++ linux-pm/drivers/acpi/pci_root.c
@@ -51,7 +51,7 @@ static void acpi_pci_root_remove(struct
static int acpi_pci_root_scan_dependent(struct acpi_device *adev)
{
- acpiphp_check_host_bridge(adev->handle);
+ acpiphp_check_host_bridge(adev);
return 0;
}
Index: linux-pm/drivers/pci/hotplug/acpiphp_glue.c
===================================================================
--- linux-pm.orig/drivers/pci/hotplug/acpiphp_glue.c
+++ linux-pm/drivers/pci/hotplug/acpiphp_glue.c
@@ -378,15 +378,11 @@ static acpi_status register_slot(acpi_ha
return AE_OK;
}
-static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle)
+static struct acpiphp_bridge *acpiphp_dev_to_bridge(struct acpi_device *adev)
{
- struct acpi_device *adev = acpi_bus_get_acpi_device(handle);
struct acpiphp_context *context;
struct acpiphp_bridge *bridge = NULL;
- if (!adev)
- return NULL;
-
acpi_lock_hp_context();
context = acpiphp_get_context(adev);
if (context) {
@@ -397,7 +393,6 @@ static struct acpiphp_bridge *acpiphp_ha
acpiphp_put_context(context);
}
acpi_unlock_hp_context();
- acpi_bus_put_acpi_device(adev);
return bridge;
}
@@ -764,11 +759,11 @@ static void acpiphp_sanitize_bus(struct
* ACPI event handlers
*/
-void acpiphp_check_host_bridge(acpi_handle handle)
+void acpiphp_check_host_bridge(struct acpi_device *adev)
{
struct acpiphp_bridge *bridge;
- bridge = acpiphp_handle_to_bridge(handle);
+ bridge = acpiphp_dev_to_bridge(adev);
if (bridge) {
pci_lock_rescan_remove();
--
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