ACPI: don't duplicate input events on netlink
The previous events patch added a netlink event for every
user of the legacy /proc/acpi/event interface.
However, some users of /proc/acpi/event are really input events,
and they already report their events via the input layer.
Introduce a new interface, acpi_bus_generate_netlink_event(),
which is explicitly called by devices that want to repoprt
events via netlink. This allows the input-like events
to opt-out of generating netlink events. In summary:
events that are sent via netlink:
ac/battery/sbs
thermal
processor
thinkpad_acpi dock/bay
events that are sent via input layer:
button
video hotkey
thinkpad_acpi hotkey
asus_acpi/asus-laptop hotkey
sonypi/sonylaptop
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 95637a4..b7b1432 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -147,7 +147,8 @@
.name = ACPI_GENL_MCAST_GROUP_NAME,
};
-int acpi_bus_generate_genetlink_event(struct acpi_device *device,
+int acpi_bus_generate_netlink_event(const char *device_class,
+ const char *bus_id,
u8 type, int data)
{
struct sk_buff *skb;
@@ -191,8 +192,8 @@
memset(event, 0, sizeof(struct acpi_genl_event));
- strcpy(event->device_class, device->pnp.device_class);
- strcpy(event->bus_id, device->dev.bus_id);
+ strcpy(event->device_class, device_class);
+ strcpy(event->bus_id, bus_id);
event->type = type;
event->data = data;
@@ -211,6 +212,8 @@
return 0;
}
+EXPORT_SYMBOL(acpi_bus_generate_netlink_event);
+
static int acpi_event_genetlink_init(void)
{
int result;
@@ -228,12 +231,14 @@
}
#else
-int acpi_bus_generate_genetlink_event(struct acpi_device *device, u8 type,
+int acpi_bus_generate_netlink_event(struct acpi_device *device, u8 type,
int data)
{
return 0;
}
+EXPORT_SYMBOL(acpi_generate_netlink_event);
+
static int acpi_event_genetlink_init(void)
{
return -ENODEV;