ACPI: Add acpi_bus_generate_event4() function

acpi_bus_generate_event() takes two strings out of passed device object.
SBS needs to supply these strings directly.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 15 insertions, 8 deletions

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 9ba778a2b484..a54234d3aac1 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -284,15 +284,11 @@ DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
 
 extern int event_is_open;
 
-int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data)
 {
-        struct acpi_bus_event *event = NULL;
+        struct acpi_bus_event *event;
         unsigned long flags = 0;
 
-
-        if (!device)
-                return -EINVAL;
-
         /* drop event on the floor if no one's listening */
         if (!event_is_open)
                 return 0;
@@ -301,8 +297,8 @@ int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
         if (!event)
                 return -ENOMEM;
 
-        strcpy(event->device_class, device->pnp.device_class);
-        strcpy(event->bus_id, device->pnp.bus_id);
+        strcpy(event->device_class, device_class);
+        strcpy(event->bus_id, bus_id);
         event->type = type;
         event->data = data;
 
@@ -313,6 +309,17 @@ int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
         wake_up_interruptible(&acpi_bus_event_queue);
 
         return 0;
+
+}
+
+EXPORT_SYMBOL_GPL(acpi_bus_generate_proc_event4);
+
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+{
+        if (!device)
+                return -EINVAL;
+        return acpi_bus_generate_proc_event4(device->pnp.device_class,
+                                             device->pnp.bus_id, type, data);
 }
 
 EXPORT_SYMBOL(acpi_bus_generate_proc_event);