Some cleanup in ultralcd.h

Marlin/ultralcd.h

   #define BUTTON_EXISTS(BN) (defined(BTN_## BN) && BTN_## BN >= 0)
   #define BUTTON_PRESSED(BN) !READ(BTN_## BN)
 
+  extern int preheatHotendTemp1,
+             preheatBedTemp1,
+             preheatFanSpeed1,
+             preheatHotendTemp2,
+             preheatBedTemp2,
+             preheatFanSpeed2;
+
   int lcd_strlen(const char* s);
   int lcd_strlen_P(const char* s);
   void lcd_update();
   #define LCD_TIMEOUT_TO_STATUS 15000
 
   #if ENABLED(ULTIPANEL)
+
+    #define BLEN_A 0
+    #define BLEN_B 1
+    // Encoder click is directly connected
+    #if BUTTON_EXISTS(ENC)
+      #define BLEN_C 2
+      #define EN_C (_BV(BLEN_C))
+    #endif
+    #define EN_A (_BV(BLEN_A))
+    #define EN_B (_BV(BLEN_B))
+    #define EN_C (_BV(BLEN_C))
+
     extern volatile uint8_t buttons;  //the last checked buttons in a bit array.
     void lcd_buttons_update();
     void lcd_quick_feedback(); // Audible feedback for a button click - could also be visual
     #endif // FILAMENT_CHANGE_FEATURE
 
   #else
-    FORCE_INLINE void lcd_buttons_update() {}
-  #endif
 
-  extern int preheatHotendTemp1,
-             preheatBedTemp1,
-             preheatFanSpeed1,
-             preheatHotendTemp2,
-             preheatBedTemp2,
-             preheatFanSpeed2;
+    inline void lcd_buttons_update() {}
+
+  #endif
 
   #if ENABLED(FILAMENT_LCD_DISPLAY)
     extern millis_t previous_lcd_status_ms;
 
   bool lcd_blink();
 
-  #if ENABLED(ULTIPANEL)
-    #define BLEN_A 0
-    #define BLEN_B 1
-    // Encoder click is directly connected
-    #if BUTTON_EXISTS(ENC)
-      #define BLEN_C 2
-      #define EN_C (_BV(BLEN_C))
-    #endif
-    #define EN_A (_BV(BLEN_A))
-    #define EN_B (_BV(BLEN_B))
-    #define EN_C (_BV(BLEN_C))
-  #endif
-
   #if ENABLED(REPRAPWORLD_KEYPAD) // is also ULTIPANEL and NEWPANEL
 
     #define REPRAPWORLD_BTN_OFFSET 0 // bit offset into buttons for shift register values
   #endif
 
 #else //no LCD
-  FORCE_INLINE void lcd_update() {}
-  FORCE_INLINE void lcd_init() {}
-  FORCE_INLINE bool lcd_hasstatus() { return false; }
-  FORCE_INLINE void lcd_setstatus(const char* message, const bool persist=false) {UNUSED(message); UNUSED(persist);}
-  FORCE_INLINE void lcd_setstatuspgm(const char* message, const uint8_t level=0) {UNUSED(message); UNUSED(level);}
-  FORCE_INLINE void lcd_buttons_update() {}
-  FORCE_INLINE void lcd_reset_alert_level() {}
-  FORCE_INLINE bool lcd_detected(void) { return true; }
+  inline void lcd_update() {}
+  inline void lcd_init() {}
+  inline bool lcd_hasstatus() { return false; }
+  inline void lcd_setstatus(const char* message, const bool persist=false) { UNUSED(message); UNUSED(persist); }
+  inline void lcd_setstatuspgm(const char* message, const uint8_t level=0) { UNUSED(message); UNUSED(level); }
+  inline void lcd_buttons_update() {}
+  inline void lcd_reset_alert_level() {}
+  inline bool lcd_detected(void) { return true; }
 
   #define LCD_MESSAGEPGM(x) NOOP
   #define LCD_ALERTMESSAGEPGM(x) NOOP
 
-#endif //ULTRA_LCD
+#endif // ULTRA_LCD
 
-#endif //ULTRALCD_H
+#endif // ULTRALCD_H