diff --git a/libc/kernel/common/linux/fd.h b/libc/kernel/common/linux/fd.h
index f3bedd1..d4f38ab 100644
--- a/libc/kernel/common/linux/fd.h
+++ b/libc/kernel/common/linux/fd.h
@@ -7,252 +7,243 @@
  ***   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_FD_H
 #define _LINUX_FD_H
-
 #include <linux/ioctl.h>
 #include <linux/compiler.h>
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct floppy_struct {
  unsigned int size,
  sect,
  head,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  track,
  stretch;
 #define FD_STRETCH 1
 #define FD_SWAPSIDES 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_ZEROBASED 4
-
  unsigned char gap,
-
  rate,
 #define FD_2M 0x4
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_SIZECODEMASK 0x38
 #define FD_SIZECODE(floppy) (((((floppy)->rate&FD_SIZECODEMASK)>> 3)+ 2) %8)
 #define FD_SECTSIZE(floppy) ( (floppy)->rate & FD_2M ?   512 : 128 << FD_SIZECODE(floppy) )
 #define FD_PERP 0x40
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  spec1,
  fmt_gap;
  const char * name;
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FDCLRPRM _IO(2, 0x41)
-
 #define FDSETPRM _IOW(2, 0x42, struct floppy_struct) 
 #define FDSETMEDIAPRM FDSETPRM
-
 #define FDDEFPRM _IOW(2, 0x43, struct floppy_struct) 
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FDGETPRM _IOR(2, 0x04, struct floppy_struct)
 #define FDDEFMEDIAPRM FDDEFPRM
 #define FDGETMEDIAPRM FDGETPRM
-
 #define FDMSGON _IO(2,0x45)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FDMSGOFF _IO(2,0x46)
-
 #define FD_FILL_BYTE 0xF6  
-
 struct format_descr {
  unsigned int device,head,track;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
-
 #define FDFMTBEG _IO(2,0x47)
-
 #define FDFMTTRK _IOW(2,0x48, struct format_descr)
-
 #define FDFMTEND _IO(2,0x49)
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct floppy_max_errors {
  unsigned int
  abort,
  read_track,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  reset,
  recal,
-
  reporting;
-
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FDSETEMSGTRESH _IO(2,0x4a)
-
 #define FDFLUSH _IO(2,0x4b)
-
 #define FDSETMAXERRS _IOW(2, 0x4c, struct floppy_max_errors)
 #define FDGETMAXERRS _IOR(2, 0x0e, struct floppy_max_errors)
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 typedef char floppy_drive_name[16];
 #define FDGETDRVTYP _IOR(2, 0x0f, floppy_drive_name)
-
 struct floppy_drive_params {
  signed char cmos;
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long max_dtr;
  unsigned long hlt;
  unsigned long hut;
  unsigned long srt;
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long spinup;
  unsigned long spindown;
  unsigned char spindown_offset;
  unsigned char select_delay;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned char rps;
  unsigned char tracks;
  unsigned long timeout;
-
  unsigned char interleave_sect;
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  struct floppy_max_errors max_errors;
-
  char flags;
-
 #define FTD_MSG 0x10
 #define FD_BROKEN_DCL 0x20
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_DEBUG 0x02
 #define FD_SILENT_DCL_CLEAR 0x4
 #define FD_INVERTED_DCL 0x80  
-
  char read_track;
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  short autodetect[8];
-
  int checkfreq;
  int native_format;
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 enum {
  FD_NEED_TWADDLE_BIT,
  FD_VERIFY_BIT,
  FD_DISK_NEWCHANGE_BIT,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  FD_UNUSED_BIT,
  FD_DISK_CHANGED_BIT,
  FD_DISK_WRITABLE_BIT
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FDSETDRVPRM _IOW(2, 0x90, struct floppy_drive_params)
 #define FDGETDRVPRM _IOR(2, 0x11, struct floppy_drive_params)
-
 struct floppy_drive_struct {
  unsigned long flags;
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_NEED_TWADDLE (1 << FD_NEED_TWADDLE_BIT)
 #define FD_VERIFY (1 << FD_VERIFY_BIT)
 #define FD_DISK_NEWCHANGE (1 << FD_DISK_NEWCHANGE_BIT)
 #define FD_DISK_CHANGED (1 << FD_DISK_CHANGED_BIT)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_DISK_WRITABLE (1 << FD_DISK_WRITABLE_BIT)
-
  unsigned long spinup_date;
  unsigned long select_date;
  unsigned long first_read_date;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  short probed_format;
  short track;
  short maxblock;
  short maxtrack;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  int generation;
-
  int keep_data;
-
  int fd_ref;
  int fd_device;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned long last_checked;
-
  char *dmabuf;
  int bufblocks;
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FDGETDRVSTAT _IOR(2, 0x12, struct floppy_drive_struct)
 #define FDPOLLDRVSTAT _IOR(2, 0x13, struct floppy_drive_struct)
-
 enum reset_mode {
  FD_RESET_IF_NEEDED,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  FD_RESET_IF_RAWCMD,
  FD_RESET_ALWAYS
 };
 #define FDRESET _IO(2, 0x54)
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct floppy_fdc_state {
  int spec1;
  int spec2;
  int dtr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned char version;
  unsigned char dor;
  unsigned long address;
  unsigned int rawcmd:2;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned int reset:1;
  unsigned int need_configure:1;
  unsigned int perp_mode:2;
  unsigned int has_fifo:1;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned int driver_version;
 #define FD_DRIVER_VERSION 0x100
-
  unsigned char track[4];
-
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FDGETFDCSTAT _IOR(2, 0x15, struct floppy_fdc_state)
-
 struct floppy_write_errors {
-
  unsigned int write_errors;
-
  unsigned long first_error_sector;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  int first_error_generation;
  unsigned long last_error_sector;
  int last_error_generation;
-
  unsigned int badness;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
-
 #define FDWERRORCLR _IO(2, 0x56)
-
 #define FDWERRORGET _IOR(2, 0x17, struct floppy_write_errors)
-
 #define FDHAVEBATCHEDRAWCMD
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct floppy_raw_cmd {
  unsigned int flags;
 #define FD_RAW_READ 1
 #define FD_RAW_WRITE 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_RAW_NO_MOTOR 4
 #define FD_RAW_DISK_CHANGE 4  
 #define FD_RAW_INTR 8  
 #define FD_RAW_SPIN 0x10  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_RAW_NO_MOTOR_AFTER 0x20  
 #define FD_RAW_NEED_DISK 0x40  
 #define FD_RAW_NEED_SEEK 0x80  
-
 #define FD_RAW_MORE 0x100  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_RAW_STOP_IF_FAILURE 0x200  
 #define FD_RAW_STOP_IF_SUCCESS 0x400  
 #define FD_RAW_SOFTFAILURE 0x800  
-
 #define FD_RAW_FAILURE 0x10000  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FD_RAW_HARDFAILURE 0x20000  
-
  void __user *data;
  char *kernel_data;
  struct floppy_raw_cmd *next;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  long length;
  long phys_length;
  int buffer_length;
-
  unsigned char rate;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned char cmd_count;
  unsigned char cmd[16];
  unsigned char reply_count;
  unsigned char reply[16];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  int track;
  int resultcode;
-
  int reserved1;
  int reserved2;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
-
 #define FDRAWCMD _IO(2, 0x58)
-
 #define FDTWADDLE _IO(2, 0x59)
-
 #define FDEJECT _IO(2, 0x5a)
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif