ACPI: plan to delete "acpi=ht" boot option

Signed-off-by: Len Brown <len.brown@intel.com>
xiaoqiangnk · Mar 15, 2010 · 4c81ba4 · 4c81ba4
1 parent 8144c88
commit 4c81ba4
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diff --git 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 <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>
diff --git 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 */