Merge pull request #4284 from thinkyhead/rc_serial_ln_macros

Sled-probe sanity fix, conditionals for remaining types of leveling

Marlin/planner.cpp

@@ -129,18 +129,16 @@ float Planner::previous_nominal_speed;
  * Class and Instance Methods
  */
 
-Planner::Planner() {
-  #if ENABLED(AUTO_BED_LEVELING_FEATURE)
-    bed_level_matrix.set_to_identity();
-  #endif
-  init();
-}
+Planner::Planner() { init(); }
 
 void Planner::init() {
   block_buffer_head = block_buffer_tail = 0;
   memset(position, 0, sizeof(position)); // clear position
   for (int i = 0; i < NUM_AXIS; i++) previous_speed[i] = 0.0;
   previous_nominal_speed = 0.0;
+  #if ENABLED(AUTO_BED_LEVELING_FEATURE)
+    bed_level_matrix.set_to_identity();
+  #endif
 }
 
 /**