--- zzzz-none-000/linux-3.10.107/drivers/input/mouse/cypress_ps2.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/input/mouse/cypress_ps2.h	2021-02-04 17:41:59.000000000 +0000
@@ -172,7 +172,6 @@
 #ifdef CONFIG_MOUSE_PS2_CYPRESS
 int cypress_detect(struct psmouse *psmouse, bool set_properties);
 int cypress_init(struct psmouse *psmouse);
-bool cypress_supported(void);
 #else
 inline int cypress_detect(struct psmouse *psmouse, bool set_properties)
 {
@@ -182,10 +181,6 @@
 {
 	return -ENOSYS;
 }
-inline bool cypress_supported(void)
-{
-	return 0;
-}
 #endif /* CONFIG_MOUSE_PS2_CYPRESS */
 
 #endif  /* _CYPRESS_PS2_H */