diff --git a/libc/kernel/common/linux/tegrafb.h b/libc/kernel/common/linux/tegrafb.h
index ea63e04..8bdf464 100644
--- a/libc/kernel/common/linux/tegrafb.h
+++ b/libc/kernel/common/linux/tegrafb.h
@@ -7,86 +7,99 @@
  ***   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_TEGRAFB_H_
 #define _LINUX_TEGRAFB_H_
-
 #include <linux/fb.h>
 #include <linux/types.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <asm/ioctl.h>
-
 #define TEGRA_FB_WIN_FMT_P1 0
 #define TEGRA_FB_WIN_FMT_P2 1
 #define TEGRA_FB_WIN_FMT_P4 2
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEGRA_FB_WIN_FMT_P8 3
 #define TEGRA_FB_WIN_FMT_B4G4R4A4 4
 #define TEGRA_FB_WIN_FMT_B5G5R5A 5
 #define TEGRA_FB_WIN_FMT_B5G6R5 6
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEGRA_FB_WIN_FMT_AB5G5R5 7
 #define TEGRA_FB_WIN_FMT_B8G8R8A8 12
 #define TEGRA_FB_WIN_FMT_R8G8B8A8 13
 #define TEGRA_FB_WIN_FMT_B6x2G6x2R6x2A8 14
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEGRA_FB_WIN_FMT_R6x2G6x2B6x2A8 15
 #define TEGRA_FB_WIN_FMT_YCbCr422 16
 #define TEGRA_FB_WIN_FMT_YUV422 17
 #define TEGRA_FB_WIN_FMT_YCbCr420P 18
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEGRA_FB_WIN_FMT_YUV420P 19
 #define TEGRA_FB_WIN_FMT_YCbCr422P 20
 #define TEGRA_FB_WIN_FMT_YUV422P 21
 #define TEGRA_FB_WIN_FMT_YCbCr422R 22
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEGRA_FB_WIN_FMT_YUV422R 23
 #define TEGRA_FB_WIN_FMT_YCbCr422RA 24
 #define TEGRA_FB_WIN_FMT_YUV422RA 25
-
 #define TEGRA_FB_WIN_BLEND_NONE 0
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEGRA_FB_WIN_BLEND_PREMULT 1
 #define TEGRA_FB_WIN_BLEND_COVERAGE 2
-
-#define TEGRA_FB_WIN_FLAG_INVERT_H (1<<0)
-#define TEGRA_FB_WIN_FLAG_INVERT_V (1<<1)
-#define TEGRA_FB_WIN_FLAG_TILED (1<<2)
-
+#define TEGRA_FB_WIN_FLAG_INVERT_H (1 << 0)
+#define TEGRA_FB_WIN_FLAG_INVERT_V (1 << 1)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define TEGRA_FB_WIN_FLAG_TILED (1 << 2)
 struct tegra_fb_windowattr {
  __s32 index;
  __u32 buff_id;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 flags;
  __u32 blend;
  __u32 offset;
  __u32 offset_u;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 offset_v;
  __u32 stride;
  __u32 stride_uv;
  __u32 pixformat;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 x;
  __u32 y;
  __u32 w;
  __u32 h;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 out_x;
  __u32 out_y;
  __u32 out_w;
  __u32 out_h;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 z;
  __u32 pre_syncpt_id;
  __u32 pre_syncpt_val;
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TEGRA_FB_FLIP_N_WINDOWS 3
-
 struct tegra_fb_flip_args {
  struct tegra_fb_windowattr win[TEGRA_FB_FLIP_N_WINDOWS];
  __u32 post_syncpt_id;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 post_syncpt_val;
 };
-
 struct tegra_fb_modedb {
  struct fb_var_screeninfo *modedb;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  __u32 modedb_len;
 };
-
 #define FBIO_TEGRA_SET_NVMAP_FD _IOW('F', 0x40, __u32)
 #define FBIO_TEGRA_FLIP _IOW('F', 0x41, struct tegra_fb_flip_args)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define FBIO_TEGRA_GET_MODEDB _IOWR('F', 0x42, struct tegra_fb_modedb)
-
 #endif
-