--- arch/ia64/include/asm/acpi.h

+++ arch/ia64/include/asm/acpi.h

@@ -94,6 +94,7 @@ ia64_acpi_release_global_lock (unsigned

#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) { }