[PATCH 0/1][Oneiric, SRU][Precise] ACPICA: Fix regression in FADT revision checks

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/883441

commit 64b3db22c04586997ab4be46dd5a5b99f8a2d390 (2.6.39),
"Remove use of unreliable FADT revision field" caused a regression
for old P4 systems because now cst_control and other fields are
not reset to 0.

The upshot of this is that it makes systems unbootable
unless one uses one of:

 - acpi=off
 - processor.nocst=1
 - maxcpus=1

This patch recently landed in upstream and fixes this problem.
User has tested this patch, see
https://bugzilla.kernel.org/show_bug.cgi?id=42700#c12
and so I'd like this included for Precise.

I'd like this applied to Oneiric as a SRU request as this fixes
the regression that occurred in 2.6.39.

Julian Anastasov (1):
  ACPICA: Fix regression in FADT revision checks

 drivers/acpi/acpica/tbfadt.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

-- 
1.7.9.1