Changes for parity with 1.1.x

Marlin/src/feature/bedlevel/ubl/ubl.cpp

   constexpr float unified_bed_leveling::_mesh_index_to_xpos[16],
                   unified_bed_leveling::_mesh_index_to_ypos[16];
 
-  #if ENABLED(ULTRA_LCD)
+  #if ENABLED(ULTIPANEL)
     bool unified_bed_leveling::lcd_map_control = false;
   #endif
 

Marlin/src/feature/bedlevel/ubl/ubl.h

       static int  g29_grid_size;
     #endif
 
-    static float measure_point_with_encoder();
-    static float measure_business_card_thickness(float);
+    #if ENABLED(NEWPANEL)
+      static void move_z_with_encoder(const float &multiplier);
+      static float measure_point_with_encoder();
+      static float measure_business_card_thickness(const float&);
+      static void manually_probe_remaining_mesh(const float&, const float&, const float&, const float&, const bool);
+      static void fine_tune_mesh(const float &rx, const float &ry, const bool do_ubl_mesh_map);
+    #endif
+
     static bool g29_parameter_parsing();
     static void find_mean_mesh_height();
     static void shift_mesh_height();
     static void probe_entire_mesh(const float &rx, const float &ry, const bool do_ubl_mesh_map, const bool stow_probe, bool do_furthest);
-    static void manually_probe_remaining_mesh(const float&, const float&, const float&, const float&, const bool);
     static void tilt_mesh_based_on_3pts(const float &z1, const float &z2, const float &z3);
     static void tilt_mesh_based_on_probed_grid(const bool do_ubl_mesh_map);
     static void g29_what_command();
     static void g29_eeprom_dump();
     static void g29_compare_current_mesh_to_stored_mesh();
-    static void fine_tune_mesh(const float &rx, const float &ry, const bool do_ubl_mesh_map);
     static bool smart_fill_one(const uint8_t x, const uint8_t y, const int8_t xdir, const int8_t ydir);
     static void smart_fill_mesh();
 
                               MESH_MIN_Y + 14 * (MESH_Y_DIST), MESH_MIN_Y + 15 * (MESH_Y_DIST)
                             };
 
-    #if ENABLED(ULTRA_LCD)
+    #if ENABLED(ULTIPANEL)
       static bool lcd_map_control;
     #endif
 

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

                               parser.seen('T'), parser.seen('E'), parser.seen('U'));
             break;
 
-        #endif
+        #endif // HAS_BED_PROBE
 
         case 2: {
           #if ENABLED(NEWPANEL)
 
     static void echo_and_take_a_measurement() { SERIAL_PROTOCOLLNPGM(" and take a measurement."); }
 
-    float unified_bed_leveling::measure_business_card_thickness(const float in_height) {
+    float unified_bed_leveling::measure_business_card_thickness(const float &in_height) {
       lcd_external_control = true;
       save_ubl_active_state_and_disable();   // Disable bed level correction for probing
 
       KEEPALIVE_STATE(IN_HANDLER);
       do_blocking_move_to(rx, ry, Z_CLEARANCE_DEPLOY_PROBE);
     }
-
   #endif // NEWPANEL
 
   bool unified_bed_leveling::g29_parameter_parsing() {
       #endif
         {
           g29_phase_value = pv;
-           if (!WITHIN(g29_phase_value, 0, 6)) {
-             SERIAL_PROTOCOLLNPGM("?(P)hase value invalid (0-6).\n");
-             err_flag = true;
-           }
-         }
+          if (!WITHIN(g29_phase_value, 0, 6)) {
+            SERIAL_PROTOCOLLNPGM("?(P)hase value invalid (0-6).\n");
+            err_flag = true;
+          }
+        }
     }
 
     if (parser.seen('J')) {
         z_values[x][y] -= tmp_z_values[x][y];
   }
 
-
   mesh_index_pair unified_bed_leveling::find_furthest_invalid_mesh_point() {
 
-    bool found_a_NAN  = false;
-    bool found_a_real = false;
+    bool found_a_NAN  = false, found_a_real = false;
+
     mesh_index_pair out_mesh;
     out_mesh.x_index = out_mesh.y_index = -1;
     out_mesh.distance = -99999.99;
     for (int8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
       for (int8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
 
-        if ( isnan(z_values[i][j])) { // Check to see if this location holds an invalid mesh point
+        if (isnan(z_values[i][j])) { // Check to see if this location holds an invalid mesh point
 
           const float mx = mesh_index_to_xpos(i),
                       my = mesh_index_to_ypos(j);
 
-          if ( !position_is_reachable_by_probe(mx, my))  // make sure the probe can get to the mesh point
+          if (!position_is_reachable_by_probe(mx, my))  // make sure the probe can get to the mesh point
             continue;
 
           found_a_NAN = true;
         }
       } // for j
     } // for i
+
     return out_mesh;
   }
 
         if (!position_is_reachable(rawx, rawy)) // SHOULD NOT OCCUR because find_closest_mesh_point_of_type will only return reachable
           break;
 
-        float new_z = z_values[location.x_index][location.y_index];
-
-        if (isnan(new_z)) // if the mesh point is invalid, set it to 0.0 so it can be edited
-          new_z = 0.0;
-
         do_blocking_move_to(rawx, rawy, Z_CLEARANCE_BETWEEN_PROBES); // Move the nozzle to the edit point
 
-        new_z = FLOOR(new_z * 1000.0) * 0.001; // Chop off digits after the 1000ths place
-
         KEEPALIVE_STATE(PAUSED_FOR_USER);
         lcd_external_control = true;
 
 
         lcd_refresh();
 
+        float new_z = z_values[location.x_index][location.y_index];
+        if (isnan(new_z)) new_z = 0.0;          // Set invalid mesh points to 0.0 so they can be edited
+        new_z = FLOOR(new_z * 1000.0) * 0.001;  // Chop off digits after the 1000ths place
+
         lcd_mesh_edit_setup(new_z);
 
         do {

Marlin/src/gcode/bedlevel/G26.cpp

   #error "SIZE_OF_CROSSHAIRS must be less than SIZE_OF_INTERSECTION_CIRCLES."
 #endif
 
+#define G26_OK false
+#define G26_ERR true
+
 /**
  *   G26 Mesh Validation Tool
  *
   set_destination_from_current();
 }
 
-FORCE_INLINE void move_to(const float where[XYZE], const float &de) {
-  move_to(where[X_AXIS], where[Y_AXIS], where[Z_AXIS], de);
-}
+FORCE_INLINE void move_to(const float where[XYZE], const float &de) { move_to(where[X_AXIS], where[Y_AXIS], where[Z_AXIS], de); }
 
 void retract_filament(const float where[XYZE]) {
   if (!g26_retracted) { // Only retract if we are not already retracted!
 
   // If the end point of the line is closer to the nozzle, flip the direction,
   // moving from the end to the start. On very small lines the optimization isn't worth it.
-  if (dist_end < dist_start && (SIZE_OF_INTERSECTION_CIRCLES) < FABS(line_length)) {
+  if (dist_end < dist_start && (SIZE_OF_INTERSECTION_CIRCLES) < FABS(line_length))
     return print_line_from_here_to_there(ex, ey, ez, sx, sy, sz);
-  }
 
   // Decide whether to retract & bump
 
                 SERIAL_EOL();
                 //debug_current_and_destination(PSTR("Connecting horizontal line."));
               }
-
               print_line_from_here_to_there(sx, sy, g26_layer_height, ex, ey, g26_layer_height);
             }
             bitmap_set(horizontal_mesh_line_flags, i, j);   // Mark it as done so we don't do it again, even if we skipped it
                   SERIAL_ECHOPAIR(", ey=", ey);
                   SERIAL_CHAR(')');
                   SERIAL_EOL();
+
                   #if ENABLED(AUTO_BED_LEVELING_UBL)
-                    void debug_current_and_destination(const char *title);
                     debug_current_and_destination(PSTR("Connecting vertical line."));
                   #endif
                 }
     return;
   }
 
-  g26_x_pos = parser.seenval('X') ? RAW_X_POSITION(parser.value_linear_units()) : current_position[X_AXIS],
+  g26_x_pos = parser.seenval('X') ? RAW_X_POSITION(parser.value_linear_units()) : current_position[X_AXIS];
   g26_y_pos = parser.seenval('Y') ? RAW_Y_POSITION(parser.value_linear_units()) : current_position[Y_AXIS];
-
   if (!position_is_reachable(g26_x_pos, g26_y_pos)) {
     SERIAL_PROTOCOLLNPGM("?Specified X,Y coordinate out of bounds.");
     return;
   #if ENABLED(ULTRA_LCD)
     lcd_external_control = true;
   #endif
+
   //debug_current_and_destination(PSTR("Starting G26 Mesh Validation Pattern."));
 
   /**
         #if IS_KINEMATIC
           // Check to make sure this segment is entirely on the bed, skip if not.
           if (!position_is_reachable(rx, ry) || !position_is_reachable(xe, ye)) continue;
-        #else                                              // not, we need to skip
+        #else                                               // not, we need to skip
           rx = constrain(rx, X_MIN_POS + 1, X_MAX_POS - 1); // This keeps us from bumping the endstops
           ry = constrain(ry, Y_MIN_POS + 1, Y_MAX_POS - 1);
           xe = constrain(xe, X_MIN_POS + 1, X_MAX_POS - 1);
   move_to(destination, 0); // Raise the nozzle
   //debug_current_and_destination(PSTR("done doing Z-Raise."));
 
-  destination[X_AXIS] = g26_x_pos;                                               // Move back to the starting position
+  destination[X_AXIS] = g26_x_pos;                               // Move back to the starting position
   destination[Y_AXIS] = g26_y_pos;
-  //destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES;                        // Keep the nozzle where it is
+  //destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES;            // Keep the nozzle where it is
 
   move_to(destination, 0); // Move back to the starting position
   //debug_current_and_destination(PSTR("done doing X/Y move."));
 
   #if ENABLED(ULTRA_LCD)
-    lcd_external_control = false;   // Give back control of the LCD Panel!
+    lcd_external_control = false;     // Give back control of the LCD Panel!
   #endif
 
   if (!g26_keep_heaters_on) {

Marlin/src/inc/SanityCheck.h

 #if ENABLED(LCD_PROGRESS_BAR)
   #if DISABLED(SDSUPPORT)
     #error "LCD_PROGRESS_BAR requires SDSUPPORT."
+  #elif DISABLED(ULTRA_LCD)
+    #error "LCD_PROGRESS_BAR requires a character LCD."
   #elif ENABLED(DOGLCD)
     #error "LCD_PROGRESS_BAR does not apply to graphical displays."
   #elif ENABLED(FILAMENT_LCD_DISPLAY)
     #error "LCD_PROGRESS_BAR and FILAMENT_LCD_DISPLAY are not fully compatible. Comment out this line to use both."
   #endif
+#elif ENABLED(LCD_SET_PROGRESS_MANUALLY) && DISABLED(DOGLCD)
+  #error "LCD_SET_PROGRESS_MANUALLY requires LCD_PROGRESS_BAR or Graphical LCD."
 #endif
 
 /**

Marlin/src/lcd/ultralcd.cpp

 #endif
 
 uint8_t lcd_status_update_delay = 1, // First update one loop delayed
-        lcd_status_message_level;    // Higher level overrides lower
+        lcd_status_message_level;    // Higher level blocks lower level
 char lcd_status_message[3 * (LCD_WIDTH) + 1] = WELCOME_MSG; // worst case is kana with up to 3*LCD_WIDTH+1
 
 #if ENABLED(STATUS_MESSAGE_SCROLLING)
   uint8_t status_scroll_pos = 0;
 #endif
+
 #if ENABLED(SCROLL_LONG_FILENAMES)
   uint8_t filename_scroll_pos, filename_scroll_max, filename_scroll_hash;
 #endif
     extern bool powersupply_on;
   #endif
 
-  float move_menu_scale;
-
   ////////////////////////////////////////////
   ///////////////// Menu Tree ////////////////
   ////////////////////////////////////////////
     void menu_action_setting_edit_callback_ ## _name(const char * const pstr, _type * const ptr, const _type minValue, const _type maxValue, const screenFunc_t callback, const bool live=false); \
     typedef void _name##_void
 
-  DECLARE_MENU_EDIT_TYPE(uint32_t, long5);
   DECLARE_MENU_EDIT_TYPE(int16_t, int3);
   DECLARE_MENU_EDIT_TYPE(uint8_t, int8);
   DECLARE_MENU_EDIT_TYPE(float, float3);
   DECLARE_MENU_EDIT_TYPE(float, float51);
   DECLARE_MENU_EDIT_TYPE(float, float52);
   DECLARE_MENU_EDIT_TYPE(float, float62);
+  DECLARE_MENU_EDIT_TYPE(uint32_t, long5);
 
   void menu_action_setting_edit_bool(const char* pstr, bool* ptr);
   void menu_action_setting_edit_callback_bool(const char* pstr, bool* ptr, screenFunc_t callbackFunc);
     static bool no_reentry = false;
     if (lcdDrawUpdate) lcd_implementation_drawmenu_static(LCD_HEIGHT >= 4 ? 1 : 0, sync_message);
     if (no_reentry) return;
-
     // Make this the current handler till all moves are done
     no_reentry = true;
-    screenFunc_t old_screen = currentScreen;
+    const screenFunc_t old_screen = currentScreen;
     lcd_goto_screen(_lcd_synchronize);
     stepper.synchronize();
     no_reentry = false;
     #if ENABLED(SDSUPPORT)
       if (card.cardOK) {
         if (card.isFileOpen()) {
-          if (IS_SD_PRINTING)
+          if (card.sdprinting)
             MENU_ITEM(function, MSG_PAUSE_PRINT, lcd_sdcard_pause);
           else
             MENU_ITEM(function, MSG_RESUME_PRINT, lcd_sdcard_resume);
       if (PAGE_CONTAINS(20, 20)) u8g.drawBitmapP(nozzle + 0, 20, 3, 1, offset_bedline_bmp);
 
       // Draw cw/ccw indicator and up/down arrows.
-      if (PAGE_CONTAINS(47,62)) {
+      if (PAGE_CONTAINS(47, 62)) {
         u8g.drawBitmapP(left  + 0, 47, 3, 16, rot_down);
         u8g.drawBitmapP(right + 0, 47, 3, 16, rot_up);
         u8g.drawBitmapP(right + 20, 48 - dir, 2, 13, up_arrow_bmp);
         ENCODER_DIRECTION_NORMAL();
         if (encoderPosition) {
           const int16_t babystep_increment = (int32_t)encoderPosition * (BABYSTEP_MULTIPLICATOR);
+          encoderPosition = 0;
+
           const float new_zoffset = zprobe_zoffset + planner.steps_to_mm[Z_AXIS] * babystep_increment;
           if (WITHIN(new_zoffset, Z_PROBE_OFFSET_RANGE_MIN, Z_PROBE_OFFSET_RANGE_MAX)) {
 
             zprobe_zoffset = new_zoffset;
             lcdDrawUpdate = LCDVIEW_CALL_REDRAW_NEXT;
           }
-          encoderPosition = 0;
         }
         if (lcdDrawUpdate) {
           lcd_implementation_drawedit(PSTR(MSG_ZPROBE_ZOFFSET), ftostr43sign(zprobe_zoffset));
         mesh_edit_value = float(rounded - (rounded % 5L)) / 1000.0;
       }
 
-      if (lcdDrawUpdate)
+      if (lcdDrawUpdate) {
         lcd_implementation_drawedit(msg, ftostr43sign(mesh_edit_value));
         #if ENABLED(MESH_EDIT_GFX_OVERLAY)
           _lcd_zoffset_overlay_gfx(mesh_edit_value);
         #endif
+      }
     }
 
     void _lcd_mesh_edit_NOP() {
       return mesh_edit_value;
     }
 
-    void lcd_mesh_edit_setup(float initial) {
+    void lcd_mesh_edit_setup(const float initial) {
       mesh_edit_value = mesh_edit_accumulator = initial;
       lcd_goto_screen(_lcd_mesh_edit_NOP);
     }
 
   #endif // AUTO_BED_LEVELING_UBL
 
+
   /**
    * Watch temperature callbacks
    */
      */
     void _lcd_ubl_adjust_height_cmd() {
       char UBL_LCD_GCODE[16];
-      const int ind = ubl_height_amount < 0 ? 6 : 7;
-      strcpy_P(UBL_LCD_GCODE, PSTR("G29 P6-"));
+      const int ind = ubl_height_amount > 0 ? 9 : 10;
+      strcpy_P(UBL_LCD_GCODE, PSTR("G29 P6 C -"));
       sprintf_P(&UBL_LCD_GCODE[ind], PSTR(".%i"), abs(ubl_height_amount));
       enqueue_and_echo_command(UBL_LCD_GCODE);
     }
     void _lcd_ubl_height_adjust_menu() {
       START_MENU();
       MENU_BACK(MSG_UBL_EDIT_MESH_MENU);
-      MENU_ITEM_EDIT(int3, MSG_UBL_MESH_HEIGHT_AMOUNT, &ubl_height_amount, -9, 9);
-      MENU_ITEM(function, MSG_UBL_MESH_HEIGHT_ADJUST, _lcd_ubl_adjust_height_cmd);
+      MENU_ITEM_EDIT_CALLBACK(int3, MSG_UBL_MESH_HEIGHT_AMOUNT, &ubl_height_amount, -9, 9, _lcd_ubl_adjust_height_cmd);
       MENU_ITEM(function, MSG_WATCH, lcd_return_to_status);
       END_MENU();
     }
     void _lcd_ubl_fillin_menu() {
       START_MENU();
       MENU_BACK(MSG_UBL_BUILD_MESH_MENU);
-      MENU_ITEM_EDIT(int3, MSG_UBL_FILLIN_AMOUNT, &ubl_fillin_amount, 0, 9);
-      MENU_ITEM(function, MSG_UBL_FILLIN_MESH, _lcd_ubl_fillin_amount_cmd);
+      MENU_ITEM_EDIT_CALLBACK(int3, MSG_UBL_FILLIN_AMOUNT, &ubl_fillin_amount, 0, 9, _lcd_ubl_fillin_amount_cmd);
       MENU_ITEM(function, MSG_UBL_SMART_FILLIN, _lcd_ubl_smart_fillin_cmd);
       MENU_ITEM(gcode, MSG_UBL_MANUAL_FILLIN, PSTR("G29 P2 B T0"));
       MENU_ITEM(function, MSG_WATCH, lcd_return_to_status);
     END_MENU();
   }
 
+  float move_menu_scale;
+
   #if ENABLED(DELTA_CALIBRATION_MENU) || (ENABLED(DELTA_AUTO_CALIBRATION) && !HAS_BED_PROBE)
 
     void lcd_move_z();
         reset_bed_level(); // After calibration bed-level data is no longer valid
       #endif
 
-      float z_dest = (Z_CLEARANCE_BETWEEN_PROBES) + (DELTA_PRINTABLE_RADIUS) / 5;
-      line_to_z(z_dest);
+      line_to_z((Z_CLEARANCE_BETWEEN_PROBES) + (DELTA_PRINTABLE_RADIUS) / 5);
       current_position[X_AXIS] = rx;
       current_position[Y_AXIS] = ry;
       line_to_current_z();
-      z_dest = Z_CLEARANCE_BETWEEN_PROBES;
-      line_to_z(z_dest);
+      line_to_z(Z_CLEARANCE_BETWEEN_PROBES);
 
       lcd_synchronize();
       move_menu_scale = PROBE_MANUALLY_STEP;
       #endif
           manual_move_e_index = eindex >= 0 ? eindex : active_extruder;
     #endif
-
     manual_move_start_time = millis() + (move_menu_scale < 0.99 ? 0UL : 250UL); // delay for bigger moves
     manual_move_axis = (int8_t)axis;
   }
     if (encoderPosition && !processing_manual_move) {
       gcode.refresh_cmd_timeout();
 
+      // Start with no limits to movement
       float min = current_position[axis] - 1000,
             max = current_position[axis] + 1000;
 
       // This assumes the center is 0,0
       #if ENABLED(DELTA)
         if (axis != Z_AXIS) {
-          max = SQRT(sq((float)(DELTA_PRINTABLE_RADIUS)) - sq(current_position[Y_AXIS - axis]));
+          max = SQRT(sq((float)(DELTA_PRINTABLE_RADIUS)) - sq(current_position[Y_AXIS - axis])); // (Y_AXIS - axis) == the other axis
           min = -max;
         }
       #endif
     MENU_ITEM(submenu, MSG_FILAMENT, lcd_control_filament_menu);
 
     #if HAS_LCD_CONTRAST
-      MENU_ITEM_EDIT_CALLBACK(int3, MSG_CONTRAST, (int16_t*)&lcd_contrast, LCD_CONTRAST_MIN, LCD_CONTRAST_MAX, lcd_callback_set_contrast, true);
+      MENU_ITEM_EDIT_CALLBACK(int3, MSG_CONTRAST, &lcd_contrast, LCD_CONTRAST_MIN, LCD_CONTRAST_MAX, lcd_callback_set_contrast, true);
     #endif
     #if ENABLED(FWRETRACT)
       MENU_ITEM(submenu, MSG_RETRACT, lcd_control_retract_menu);
 
         lcd_goto_screen(lcd_sdcard_menu, last_sdfile_encoderPosition);
         defer_return_to_status = true;
-        last_sdfile_encoderPosition == 0xFFFF;
+        last_sdfile_encoderPosition = 0xFFFF;
 
         #if ENABLED(DOGLCD)
           lcd_update();
         MENU_ITEM(function, LCD_STR_FOLDER "..", lcd_sd_updir);
       }
 
-      if (fileCnt) {
-        for (uint16_t i = 0; i < fileCnt; i++) {
-          if (_menuLineNr == _thisItemNr) {
-            const uint16_t nr =
-              #if ENABLED(SDCARD_RATHERRECENTFIRST) && DISABLED(SDCARD_SORT_ALPHA)
-                fileCnt - 1 -
-              #endif
-            i;
-
-            #if ENABLED(SDCARD_SORT_ALPHA)
-              card.getfilename_sorted(nr);
-            #else
-              card.getfilename(nr);
+      for (uint16_t i = 0; i < fileCnt; i++) {
+        if (_menuLineNr == _thisItemNr) {
+          const uint16_t nr =
+            #if ENABLED(SDCARD_RATHERRECENTFIRST) && DISABLED(SDCARD_SORT_ALPHA)
+              fileCnt - 1 -
             #endif
+          i;
 
-            if (card.filenameIsDir)
-              MENU_ITEM(sddirectory, MSG_CARD_MENU, card.filename, card.longFilename);
-            else
-              MENU_ITEM(sdfile, MSG_CARD_MENU, card.filename, card.longFilename);
-          }
-          else {
-            MENU_ITEM_DUMMY();
-          }
+          #if ENABLED(SDCARD_SORT_ALPHA)
+            card.getfilename_sorted(nr);
+          #else
+            card.getfilename(nr);
+          #endif
+
+          if (card.filenameIsDir)
+            MENU_ITEM(sddirectory, MSG_CARD_MENU, card.filename, card.longFilename);
+          else
+            MENU_ITEM(sdfile, MSG_CARD_MENU, card.filename, card.longFilename);
+        }
+        else {
+          MENU_ITEM_DUMMY();
         }
       }
       END_MENU();
   lcd_implementation_init();
 
   #if ENABLED(NEWPANEL)
-
     #if BUTTON_EXISTS(EN1)
       SET_INPUT_PULLUP(BTN_EN1);
     #endif
+
     #if BUTTON_EXISTS(EN2)
       SET_INPUT_PULLUP(BTN_EN2);
     #endif
+
     #if BUTTON_EXISTS(ENC)
       SET_INPUT_PULLUP(BTN_ENC);
     #endif
 
       #endif
 
-      bool encoderPastThreshold = (abs(encoderDiff) >= ENCODER_PULSES_PER_STEP);
+      const bool encoderPastThreshold = (abs(encoderDiff) >= ENCODER_PULSES_PER_STEP);
       if (encoderPastThreshold || lcd_clicked) {
         if (encoderPastThreshold) {
           int32_t encoderMultiplier = 1;
           if (BUTTON_PRESSED(ENC)) newbutton |= EN_C;
         #endif
 
-        buttons = newbutton;
-        #if ENABLED(LCD_HAS_SLOW_BUTTONS)
-          buttons |= slow_buttons;
-        #endif
-
         //
         // Directional buttons
         //
 
         #endif // LCD_HAS_DIRECTIONAL_BUTTONS
 
+        buttons = newbutton;
+        #if ENABLED(LCD_HAS_SLOW_BUTTONS)
+          buttons |= slow_buttons;
+        #endif
+
         #if ENABLED(ADC_KEYPAD)
 
           uint8_t newbutton_reprapworld_keypad = 0;

Marlin/src/module/planner.cpp

           Planner::inverse_z_fade_height,
           Planner::last_fade_z;
   #endif
+#else
+  constexpr bool Planner::leveling_active;
 #endif
 
 #if ENABLED(SKEW_CORRECTION)
   #if ENABLED(SKEW_CORRECTION_GCODE)
-    // Initialized by settings.load()
     float Planner::xy_skew_factor;
-    #if ENABLED(SKEW_CORRECTION_FOR_Z)
-      float Planner::xz_skew_factor, Planner::yz_skew_factor;
-    #endif
+  #else
+    constexpr float Planner::xy_skew_factor;
+  #endif
+  #if ENABLED(SKEW_CORRECTION_FOR_Z) && ENABLED(SKEW_CORRECTION_GCODE)
+    float Planner::xz_skew_factor, Planner::yz_skew_factor;
+  #else
+    constexpr float Planner::xz_skew_factor, Planner::yz_skew_factor;
   #endif
 #endif
 

Marlin/src/module/stepper.cpp

 int16_t Stepper::cleaning_buffer_counter = 0;
 
 #if ENABLED(X_DUAL_ENDSTOPS)
-  bool Stepper::locked_x_motor = false;
-  bool Stepper::locked_x2_motor = false;
+  bool Stepper::locked_x_motor = false, Stepper::locked_x2_motor = false;
 #endif
-
 #if ENABLED(Y_DUAL_ENDSTOPS)
-  bool Stepper::locked_y_motor = false;
-  bool Stepper::locked_y2_motor = false;
+  bool Stepper::locked_y_motor = false, Stepper::locked_y2_motor = false;
 #endif
-
 #if ENABLED(Z_DUAL_ENDSTOPS)
-  bool Stepper::locked_z_motor = false;
-  bool Stepper::locked_z2_motor = false;
+  bool Stepper::locked_z_motor = false, Stepper::locked_z2_motor = false;
 #endif
 
 long Stepper::counter_X = 0,