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authorLen Brown <len.brown@intel.com>2010-02-19 06:09:22 +0100
committerLen Brown <len.brown@intel.com>2010-03-15 01:58:38 +0100
commit68ca406930d6380b3be7ada5f15fcf85bfcbd552 (patch)
tree866864defb2733d71bce04e342638c60f92fb928 /arch/ia64/include
parentACPI: plan to delete "acpi=ht" boot option (diff)
downloadlinux-68ca406930d6380b3be7ada5f15fcf85bfcbd552.tar.xz
linux-68ca406930d6380b3be7ada5f15fcf85bfcbd552.zip
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>
Diffstat (limited to 'arch/ia64/include')
-rw-r--r--arch/ia64/include/asm/acpi.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index 21adbd7f90f8..837dc82a013e 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -94,7 +94,6 @@ ia64_acpi_release_global_lock (unsigned int *lock)
#define acpi_noirq 0 /* ACPI always enabled on IA64 */
#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
-#define acpi_ht 0 /* no HT-only mode on IA64 */
#endif
#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
static inline void disable_acpi(void) { }