From 6b13c430ae587c87f3d94485dbb7a16f905196f2 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Sun, 8 May 2016 17:01:46 -0700
Subject: [PATCH] The TRReset state is not needed with fall-through

---
 Marlin/temperature.cpp | 5 +----
 Marlin/temperature.h   | 6 +++---
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/Marlin/temperature.cpp b/Marlin/temperature.cpp
index a8f9c916f..8879b4737 100644
--- a/Marlin/temperature.cpp
+++ b/Marlin/temperature.cpp
@@ -1048,12 +1048,9 @@ void Temperature::init() {
 
     // If the target temperature changes, restart
     if (tr_target_temperature[heater_index] != target_temperature)
-      *state = TRReset;
+      *state = TRInactive;
 
     switch (*state) {
-      case TRReset:
-        *timer = 0;
-        *state = TRInactive;
       // Inactive state waits for a target temperature to be set
       case TRInactive:
         if (target_temperature <= 0) break;
diff --git a/Marlin/temperature.h b/Marlin/temperature.h
index 41e4ac16f..a178f1fed 100644
--- a/Marlin/temperature.h
+++ b/Marlin/temperature.h
@@ -358,17 +358,17 @@ class Temperature {
 
     #if ENABLED(THERMAL_PROTECTION_HOTENDS) || HAS_THERMALLY_PROTECTED_BED
 
-      typedef enum TRState { TRReset, TRInactive, TRFirstHeating, TRStable, TRRunaway } TRstate;
+      typedef enum TRState { TRInactive, TRFirstHeating, TRStable, TRRunaway } TRstate;
 
       void thermal_runaway_protection(TRState* state, millis_t* timer, float temperature, float target_temperature, int heater_id, int period_seconds, int hysteresis_degc);
 
       #if ENABLED(THERMAL_PROTECTION_HOTENDS)
-        TRState thermal_runaway_state_machine[EXTRUDERS] = { TRReset };
+        TRState thermal_runaway_state_machine[EXTRUDERS] = { TRInactive };
         millis_t thermal_runaway_timer[EXTRUDERS] = { 0 };
       #endif
 
       #if HAS_THERMALLY_PROTECTED_BED
-        TRState thermal_runaway_bed_state_machine = TRReset;
+        TRState thermal_runaway_bed_state_machine = TRInactive;
         millis_t thermal_runaway_bed_timer;
       #endif