diff --git a/libc/kernel/common/linux/sysfs.h b/libc/kernel/common/linux/sysfs.h
index 00b5f5a..9a9bec9 100644
--- a/libc/kernel/common/linux/sysfs.h
+++ b/libc/kernel/common/linux/sysfs.h
@@ -7,70 +7,75 @@
  ***   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 _SYSFS_H_
 #define _SYSFS_H_
-
 #include <asm/atomic.h>
-
 struct kobject;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct module;
-
 struct attribute {
  const char * name;
  struct module * owner;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  mode_t mode;
 };
-
 struct attribute_group {
  const char * name;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  struct attribute ** attrs;
 };
-
 #define __ATTR(_name,_mode,_show,_store) {   .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE },   .show = _show,   .store = _store,  }
-
 #define __ATTR_RO(_name) {   .attr = { .name = __stringify(_name), .mode = 0444, .owner = THIS_MODULE },   .show = _name##_show,  }
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __ATTR_NULL { .attr = { .name = NULL } }
-
 #define attr_name(_attr) (_attr).attr.name
-
 struct vm_area_struct;
-
 struct bin_attribute {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  struct attribute attr;
  size_t size;
  void *private;
  ssize_t (*read)(struct kobject *, char *, loff_t, size_t);
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  ssize_t (*write)(struct kobject *, char *, loff_t, size_t);
  int (*mmap)(struct kobject *, struct bin_attribute *attr,
  struct vm_area_struct *vma);
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sysfs_ops {
  ssize_t (*show)(struct kobject *, struct attribute *,char *);
  ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sysfs_dirent {
  atomic_t s_count;
  struct list_head s_sibling;
  struct list_head s_children;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  void * s_element;
  int s_type;
  umode_t s_mode;
  struct dentry * s_dentry;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  struct iattr * s_iattr;
  atomic_t s_event;
 };
-
 #define SYSFS_ROOT 0x0001
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SYSFS_DIR 0x0002
 #define SYSFS_KOBJ_ATTR 0x0004
 #define SYSFS_KOBJ_BIN_ATTR 0x0008
 #define SYSFS_KOBJ_DEVICE 0x0010
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SYSFS_KOBJ_LINK 0x0020
 #define SYSFS_NOT_PINNED (SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR | SYSFS_KOBJ_DEVICE | SYSFS_KOBJ_LINK)
-
 #endif