ACPI / hotplug / PCI: Do not pass ACPI handle to hotplug_event()

Since hotplug_event() can get the ACPI handle needed for debug
printouts from its context argument, there's no need to pass the
handle to it.  Moreover, the second argument's type may be changed
to (struct acpiphp_context *), because that's what is always passed
to hotplug_event() as the second argument anyway.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Tested-by: Mika Westerberg <[email protected]>

drivers/pci/hotplug/acpiphp_glue.c

@@ -63,7 +63,7 @@ static DEFINE_MUTEX(acpiphp_context_lock);
 static void handle_hotplug_event(acpi_handle handle, u32 type, void *data);
 static void acpiphp_sanitize_bus(struct pci_bus *bus);
 static void acpiphp_set_hpp_values(struct pci_bus *bus);
-static void hotplug_event(acpi_handle handle, u32 type, void *data);
+static void hotplug_event(u32 type, struct acpiphp_context *context);
 static void free_bridge(struct kref *kref);
 
 static void acpiphp_context_handler(acpi_handle handle, void *context)
@@ -225,7 +225,7 @@ static void dock_event(acpi_handle handle, u32 type, void *data)
 	acpiphp_put_context(context);
 	mutex_unlock(&acpiphp_context_lock);
 
-	hotplug_event(handle, type, data);
+	hotplug_event(type, context);
 
 	put_bridge(context->func.parent);
 }
@@ -813,9 +813,9 @@ void acpiphp_check_host_bridge(acpi_handle handle)
 
 static int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot);
 
-static void hotplug_event(acpi_handle handle, u32 type, void *data)
+static void hotplug_event(u32 type, struct acpiphp_context *context)
 {
-	struct acpiphp_context *context = data;
+	acpi_handle handle = context->adev->handle;
 	struct acpiphp_func *func = &context->func;
 	struct acpiphp_slot *slot = func->slot;
 	struct acpiphp_bridge *bridge;
@@ -870,14 +870,14 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
 static void hotplug_event_work(void *data, u32 type)
 {
 	struct acpiphp_context *context = data;
-	acpi_handle handle = context->adev->handle;
 
 	acpi_scan_lock_acquire();
 
-	hotplug_event(handle, type, context);
+	hotplug_event(type, context);
 
 	acpi_scan_lock_release();
-	acpi_evaluate_hotplug_ost(handle, type, ACPI_OST_SC_SUCCESS, NULL);
+	acpi_evaluate_hotplug_ost(context->adev->handle, type,
+				  ACPI_OST_SC_SUCCESS, NULL);
 	put_bridge(context->func.parent);
 }