[PATCH] HID: roccat: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <redacted>
---
 drivers/hid/hid-roccat-kone.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index bf4675a..c4dd616 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c

@@ -783,6 +783,7 @@ static void kone_keep_values_up_to_date(struct kone_device *kone,
 	case kone_mouse_event_switch_profile:
 		kone->actual_dpi = kone->profiles[event->value - 1].
 				startup_dpi;
+		/* fall through */
 	case kone_mouse_event_osd_profile:
 		kone->actual_profile = event->value;
 		break;