diff --git a/include/linux/i8042.h b/include/linux/i8042.h
index 9bf6870..a986ff5 100644
--- a/include/linux/i8042.h
+++ b/include/linux/i8042.h
@@ -46,31 +46,31 @@
 
 #else
 
-void i8042_lock_chip(void)
+static inline void i8042_lock_chip(void)
 {
 }
 
-void i8042_unlock_chip(void)
+static inline void i8042_unlock_chip(void)
 {
 }
 
-int i8042_command(unsigned char *param, int command)
+static inline int i8042_command(unsigned char *param, int command)
 {
 	return -ENODEV;
 }
 
-bool i8042_check_port_owner(const struct serio *serio)
+static inline bool i8042_check_port_owner(const struct serio *serio)
 {
 	return false;
 }
 
-int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
+static inline int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
 					struct serio *serio))
 {
 	return -ENODEV;
 }
 
-int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
+static inline int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
 				       struct serio *serio))
 {
 	return -ENODEV;