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>

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 6b2658c96242..e5084ececb6f 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -292,10 +292,6 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
         if (!device)
                 return -EINVAL;
 
-        if (acpi_bus_generate_genetlink_event(device, type, data))
-                printk(KERN_WARNING PREFIX
-                        "Failed to generate an ACPI event via genetlink!\n");
-
         /* drop event on the floor if no one's listening */
         if (!event_is_open)
                 return 0;