From 4c81ba4900ab4eb24c7d2ba1aca594c644b6ce4c Mon Sep 17 00:00:00 2001 From: Len Brown Date: Sun, 14 Mar 2010 16:28:46 -0400 Subject: [PATCH] ACPI: plan to delete "acpi=ht" boot option Signed-off-by: Len Brown --- Documentation/feature-removal-schedule.txt | 7 +++++++ arch/x86/kernel/acpi/boot.c | 4 +++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index a5cc0db63d7..ed511af0f79 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -582,3 +582,10 @@ Why: The paravirt mmu host support is slower than non-paravirt mmu, both Who: Avi Kivity ---------------------------- + +What: "acpi=ht" boot option +When: 2.6.35 +Why: Useful in 2003, implementation is a hack. + Generally invoked by accident today. + Seen as doing more harm than good. +Who: Len Brown diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index df586bbc944..7914ab0ad76 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1559,8 +1559,10 @@ static int __init parse_acpi(char *arg) } /* Limit ACPI just to boot-time to enable HT */ else if (strcmp(arg, "ht") == 0) { - if (!acpi_force) + if (!acpi_force) { + printk(KERN_WARNING "acpi=ht will be removed in Linux-2.6.35\n"); disable_acpi(); + } acpi_ht = 1; } /* acpi=rsdt use RSDT instead of XSDT */ -- 2.39.3