1 files changed, 0 insertions, 45 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 28ee2ed88a1a..d6fab5798487 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1841,48 +1841,3 @@ void hidinput_disconnect(struct hid_device *hid)
 }
 EXPORT_SYMBOL_GPL(hidinput_disconnect);
 
-/**
- * hid_scroll_counter_handle_scroll() - Send high- and low-resolution scroll
- *                                      events given a high-resolution wheel
- *                                      movement.
- * @counter: a hid_scroll_counter struct describing the wheel.
- * @hi_res_value: the movement of the wheel, in the mouse's high-resolution
- *                units.
- *
- * Given a high-resolution movement, this function converts the movement into
- * microns and emits high-resolution scroll events for the input device. It also
- * uses the multiplier from &struct hid_scroll_counter to emit low-resolution
- * scroll events when appropriate for backwards-compatibility with userspace
- * input libraries.
- */
-void hid_scroll_counter_handle_scroll(struct hid_scroll_counter *counter,
-				      int hi_res_value)
-{
-	int low_res_scroll_amount;
-	/* Some wheels will rest 7/8ths of a notch from the previous notch
-	 * after slow movement, so we want the threshold for low-res events to
-	 * be in the middle of the notches (e.g. after 4/8ths) as opposed to on
-	 * the notches themselves (8/8ths).
-	 */
-	int threshold = counter->resolution_multiplier / 2;
-
-	input_report_rel(counter->dev, REL_WHEEL_HI_RES,
-			 hi_res_value * counter->microns_per_hi_res_unit);
-
-	counter->remainder += hi_res_value;
-	if (abs(counter->remainder) >= threshold) {
-		/* Add (or subtract) 1 because we want to trigger when the wheel
-		 * is half-way to the next notch (i.e. scroll 1 notch after a
-		 * 1/2 notch movement, 2 notches after a 1 1/2 notch movement,
-		 * etc.).
-		 */
-		low_res_scroll_amount =
-			counter->remainder / counter->resolution_multiplier
-			+ (hi_res_value > 0 ? 1 : -1);
-		input_report_rel(counter->dev, REL_WHEEL,
-				 low_res_scroll_amount);
-		counter->remainder -=
-			low_res_scroll_amount * counter->resolution_multiplier;
-	}
-}
-EXPORT_SYMBOL_GPL(hid_scroll_counter_handle_scroll);