Gitweb: http://git.kernel.org/linus/68ca406930d6380b3be7ada5f15fcf85bfcbd552
Commit: 68ca406930d6380b3be7ada5f15fcf85bfcbd552
Parent: 4c81ba4900ab4eb24c7d2ba1aca594c644b6ce4c
Author: Len Brown <len.brown@intel.com>
AuthorDate: Fri Feb 19 00:09:22 2010 -0500
Committer: Len Brown <len.brown@intel.com>
CommitDate: Sun Mar 14 20:58:38 2010 -0400
ACPI: delete the "acpi=ht" boot option
acpi=ht was important in 2003 -- before ACPI was
universally deployed and enabled by default in
the major Linux distributions.
At that time, there were a fair number of people who
or chose to, or needed to, run with acpi=off,
yet also wanted access to Hyper-threading.
Today we find that many invocations of "acpi=ht"
are accidental, and thus is it possible that it
is doing more harm than good.
In 2.6.34, we warn on invocation of acpi=ht.
In 2.6.35, we delete the boot option.
Signed-off-by: Len Brown <len.brown@intel.com>
---
Documentation/kernel-parameters.txt | 3 +--
arch/ia64/include/asm/acpi.h | 1 -
arch/x86/include/asm/acpi.h | 2 --
arch/x86/kernel/acpi/boot.c | 19 +++----------------
arch/x86/lguest/boot.c | 1 -
drivers/acpi/tables.c | 4 ++--
6 files changed, 6 insertions(+), 24 deletions(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 3bc48b0..41b924f 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -143,11 +143,10 @@ and is between 256 and 4096 characters. It is defined in the file
acpi= [HW,ACPI,X86]
Advanced Configuration and Power Interface
- Format: { force | off | ht | strict | noirq | rsdt }
+ Format: { force | off | strict | noirq | rsdt }
force -- enable ACPI if default was off
off -- disable ACPI if default was on
noirq -- do not use ACPI for IRQ routing
- ht -- run only enough ACPI to ...
