--- zzzz-none-000/linux-3.10.107/drivers/hid/hid-lg.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/hid/hid-lg.h	2021-02-04 17:41:59.000000000 +0000
@@ -24,16 +24,4 @@
 static inline int lg3ff_init(struct hid_device *hdev) { return -1; }
 #endif
 
-#ifdef CONFIG_LOGIWHEELS_FF
-int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
-			     struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data);
-int lg4ff_init(struct hid_device *hdev);
-int lg4ff_deinit(struct hid_device *hdev);
-#else
-static inline int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
-					   struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data) { return 0; }
-static inline int lg4ff_init(struct hid_device *hdev) { return -1; }
-static inline int lg4ff_deinit(struct hid_device *hdev) { return -1; }
-#endif
-
 #endif