merge followup

Marlin/Configuration_adv.h

@@ -2234,14 +2234,6 @@
 // Some clients will have this feature soon. This could make the NO_TIMEOUTS unnecessary.
 //#define ADVANCED_OK
 
-/**
- * Buffer monitoring
- *
- * To help diagnose print quality issues stemming from command buffers being empty,
- * we add M576 which enables reporting of buffer empty
- */
-//#define BUFFER_MONITORING
-
 // Printrun may have trouble receiving long strings all at once.
 // This option inserts short delays between lines of serial output.
 #define SERIAL_OVERRUN_PROTECTION
@@ -4182,13 +4174,13 @@
 // Enable Marlin dev mode which adds some special commands
 //#define MARLIN_DEV_MODE
 
-/**
- * Buffer monitoring
- *
- * To help diagnose print quality issues stemming from command buffers being empty,
- * we add D576 which enables reporting of buffer empty. Requires MARLIN_DEV_MODE.
- */
-//#define BUFFER_MONITORING
+#if ENABLED(MARLIN_DEV_MODE)
+  /**
+   * D576 - Buffer Monitoring
+   * To help diagnose print quality issues stemming from empty command buffers.
+   */
+  //#define BUFFER_MONITORING
+#endif
 
 /**
  * Postmortem Debugging captures misbehavior and outputs the CPU status and backtrace to serial.

Marlin/src/gcode/gcode.cpp

@@ -851,10 +851,6 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
         case 575: M575(); break;                                  // M575: Set serial baudrate
       #endif
 
-      #if ENABLED(BUFFER_MONITORING)                              // M576: Buffer monitoring
-        case 576: M576(); break;
-      #endif
-
       #if ENABLED(ADVANCED_PAUSE_FEATURE)
         case 600: M600(); break;                                  // M600: Pause for Filament Change
         case 603: M603(); break;                                  // M603: Configure Filament Change

Marlin/src/gcode/gcode.h

@@ -241,6 +241,7 @@
  * M553 - Get or set IP netmask. (Requires enabled Ethernet port)
  * M554 - Get or set IP gateway. (Requires enabled Ethernet port)
  * M569 - Enable stealthChop on an axis. (Requires at least one _DRIVER_TYPE to be TMC2130/2160/2208/2209/5130/5160)
+ * M575 - Change the serial baud rate. (Requires BAUD_RATE_GCODE)
  * M600 - Pause for filament change: "M600 X<pos> Y<pos> Z<raise> E<first_retract> L<later_retract>". (Requires ADVANCED_PAUSE_FEATURE)
  * M603 - Configure filament change: "M603 T<tool> U<unload_length> L<load_length>". (Requires ADVANCED_PAUSE_FEATURE)
  * M605 - Set Dual X-Carriage movement mode: "M605 S<mode> [X<x_offset>] [R<temp_offset>]". (Requires DUAL_X_CARRIAGE)
@@ -297,6 +298,7 @@
  * M997 - Perform in-application firmware update
  * M999 - Restart after being stopped by error
  * D... - Custom Development G-code. Add hooks to 'gcode_D.cpp' for developers to test features. (Requires MARLIN_DEV_MODE)
+ *        D576 - Set buffer monitoring options. (Requires BUFFER_MONITORING)
  *
  * "T" Codes
  *
@@ -973,8 +975,6 @@ class GcodeSuite {
     static void M575();
   #endif
 
-  TERN_(BUFFER_MONITORING, static void M576());
-
   #if ENABLED(ADVANCED_PAUSE_FEATURE)
     static void M600();
     static void M603();