Merge branches 'for-3.7/upstream-fixes', 'for-3.8/hidraw', 'for-3.8/i2c-hid', 'for...

[mirror_ubuntu-zesty-kernel.git] / include / linux / input / mt.h

diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index cc5cca774bab14590e544f682c96a4ab72cd89c4..2e86bd0bfba11cbc6263ba8942ddbe4ca0760701 100644 (file)
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -69,6 +69,12 @@ static inline bool input_mt_is_active(const struct input_mt_slot *slot)
        return input_mt_get_value(slot, ABS_MT_TRACKING_ID) >= 0;
 }
 
+static inline bool input_mt_is_used(const struct input_mt *mt,
+                                   const struct input_mt_slot *slot)
+{
+       return slot->frame == mt->frame;
+}
+
 int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
                        unsigned int flags);
 void input_mt_destroy_slots(struct input_dev *dev);