diff --git a/libc/kernel/common/linux/miscdevice.h b/libc/kernel/common/linux/miscdevice.h
index 457960a..eb88387 100644
--- a/libc/kernel/common/linux/miscdevice.h
+++ b/libc/kernel/common/linux/miscdevice.h
@@ -7,51 +7,60 @@
  ***   structures, and macros generated from the original header, and thus,
  ***   contains no copyrightable information.
  ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
  ****************************************************************************
  ****************************************************************************/
 #ifndef _LINUX_MISCDEVICE_H
 #define _LINUX_MISCDEVICE_H
 #include <linux/module.h>
 #include <linux/major.h>
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define PSMOUSE_MINOR 1
 #define MS_BUSMOUSE_MINOR 2
 #define ATIXL_BUSMOUSE_MINOR 3
-
 #define ATARIMOUSE_MINOR 5
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SUN_MOUSE_MINOR 6
 #define APOLLO_MOUSE_MINOR 7
 #define PC110PAD_MINOR 9
-
 #define WATCHDOG_MINOR 130  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEMP_MINOR 131  
 #define RTC_MINOR 135
 #define EFI_RTC_MINOR 136  
 #define SUN_OPENPROM_MINOR 139
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DMAPI_MINOR 140  
 #define NVRAM_MINOR 144
 #define SGI_MMTIMER 153
 #define STORE_QUEUE_MINOR 155
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define I2O_MINOR 166
 #define MICROCODE_MINOR 184
 #define MWAVE_MINOR 219  
 #define MPT_MINOR 220
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MISC_DYNAMIC_MINOR 255
-
 #define TUN_MINOR 200
 #define HPET_MINOR 228
-
 struct device;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct class_device;
-
 struct miscdevice {
  int minor;
  const char *name;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  const struct file_operations *fops;
  struct list_head list;
  struct device *dev;
  struct class_device *class;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
-
 #define MODULE_ALIAS_MISCDEV(minor)   MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR)   "-" __stringify(minor))
 #endif