tree d0a73e97ddb5c4ab8de7d5cb89517ff7f29f467f
parent 3f662b3f6e422a15fefcbaf4bdd21f97e6bcf32d
author H. Peter Anvin <hpa@zytor.com> 1189718197 -0700
committer H. Peter Anvin <hpa@zytor.com> 1190311618 -0700

[acpi] Correct the decoding of video mode numbers in wakeup.S

wakeup.S looks at the video mode number from the setup header and
looks to see if it is a VESA mode.  Unfortunately, the decoding is
done incorrectly and it will attempt to frob the VESA BIOS for any
mode number 0x0200 or larger.  Correct this, and remove a bunch of #if
0'd code.

Massive thanks to Jeff Chua for reporting the bug, and suffering
though a large number of experiments in order to track this problem
down.

Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>