ACPI: plan to delete "acpi=ht" boot option
Len Brown [Sun, 14 Mar 2010 20:28:46 +0000 (16:28 -0400)]
Signed-off-by: Len Brown <len.brown@intel.com>

Documentation/feature-removal-schedule.txt
arch/x86/kernel/acpi/boot.c

index a5cc0db..ed511af 100644 (file)
@@ -582,3 +582,10 @@ Why:       The paravirt mmu host support is slower than non-paravirt mmu, both
 Who:   Avi Kivity <avi@redhat.com>
 
 ----------------------------
+
+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 <len.brown@intel.com>
index df586bb..7914ab0 100644 (file)
@@ -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 */