From: Len Brown <len.brown@intel.com>
Date: Sun, 14 Mar 2010 20:28:46 +0000 (-0400)
Subject: ACPI: plan to delete "acpi=ht" boot option
X-Git-Tag: v2.6.35.3~1366^2^5
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/linux-imx.git/commitdiff_plain/4c81ba4900ab4eb24c7d2ba1aca594c644b6ce4c

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

Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index a5cc0db63d7a..ed511af0f79a 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 <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
index df586bbc9447..7914ab0ad76e 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 */