From 5a98bf2c0a9c1616e7fc807e0b5d8a2cbcf9062e Mon Sep 17 00:00:00 2001
From: Martin Roth <martinroth@google.com>
Date: Tue, 8 Dec 2015 15:26:46 -0700
Subject: [PATCH] ACPI: Fix IASL Warning about unused method for _TZ checks

According to the ACPI Spec for CondRefOf, the result argument is
optional.  In all of these locations, it was getting set but not
used, creating a warning in new versions of IASL.  Since it's
an optional argument, just remove it.

dsdt.aml 640:              If (CondRefOf (^GBUF, Local0)) {
Warning  3144 - Method Local is set but never used ^  (Local0)

Change-Id: Iddf46a4faab19019882847917397eee0614302b9
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12695
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
---
 src/southbridge/intel/bd82x6x/acpi/globalnvs.asl     | 4 ++--
 src/southbridge/intel/fsp_bd82x6x/acpi/globalnvs.asl | 4 ++--
 src/southbridge/intel/fsp_i89xx/acpi/globalnvs.asl   | 4 ++--
 src/southbridge/intel/lynxpoint/acpi/globalnvs.asl   | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl b/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl
index 68b4190529..ad027160a6 100644
--- a/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl
+++ b/src/southbridge/intel/bd82x6x/acpi/globalnvs.asl
@@ -238,12 +238,12 @@ External (\_TZ.SKIN)
 Method (TZUP)
 {
 	/* Update Primary Thermal Zone */
-	If (CondRefOf (\_TZ.THRM, Local0)) {
+	If (CondRefOf (\_TZ.THRM)) {
 		Notify (\_TZ.THRM, 0x81)
 	}
 
 	/* Update Secondary Thermal Zone */
-	If (CondRefOf (\_TZ.SKIN, Local0)) {
+	If (CondRefOf (\_TZ.SKIN)) {
 		Notify (\_TZ.SKIN, 0x81)
 	}
 }
diff --git a/src/southbridge/intel/fsp_bd82x6x/acpi/globalnvs.asl b/src/southbridge/intel/fsp_bd82x6x/acpi/globalnvs.asl
index 0fb943c85a..3adf3caa84 100644
--- a/src/southbridge/intel/fsp_bd82x6x/acpi/globalnvs.asl
+++ b/src/southbridge/intel/fsp_bd82x6x/acpi/globalnvs.asl
@@ -224,12 +224,12 @@ External (\_TZ.SKIN)
 Method (TZUP)
 {
 	/* Update Primary Thermal Zone */
-	If (CondRefOf (\_TZ.THRM, Local0)) {
+	If (CondRefOf (\_TZ.THRM)) {
 		Notify (\_TZ.THRM, 0x81)
 	}
 
 	/* Update Secondary Thermal Zone */
-	If (CondRefOf (\_TZ.SKIN, Local0)) {
+	If (CondRefOf (\_TZ.SKIN)) {
 		Notify (\_TZ.SKIN, 0x81)
 	}
 }
diff --git a/src/southbridge/intel/fsp_i89xx/acpi/globalnvs.asl b/src/southbridge/intel/fsp_i89xx/acpi/globalnvs.asl
index f124eb0aee..e1e0e6648a 100644
--- a/src/southbridge/intel/fsp_i89xx/acpi/globalnvs.asl
+++ b/src/southbridge/intel/fsp_i89xx/acpi/globalnvs.asl
@@ -228,12 +228,12 @@ External (\_TZ.SKIN)
 Method (TZUP)
 {
 	/* Update Primary Thermal Zone */
-	If (CondRefOf (\_TZ.THRM, Local0)) {
+	If (CondRefOf (\_TZ.THRM)) {
 		Notify (\_TZ.THRM, 0x81)
 	}
 
 	/* Update Secondary Thermal Zone */
-	If (CondRefOf (\_TZ.SKIN, Local0)) {
+	If (CondRefOf (\_TZ.SKIN)) {
 		Notify (\_TZ.SKIN, 0x81)
 	}
 }
diff --git a/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl b/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
index cbc3bd7e7f..468c755b16 100644
--- a/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
+++ b/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
@@ -222,12 +222,12 @@ External (\_TZ.SKIN)
 Method (TZUP)
 {
 	/* Update Primary Thermal Zone */
-	If (CondRefOf (\_TZ.THRM, Local0)) {
+	If (CondRefOf (\_TZ.THRM)) {
 		Notify (\_TZ.THRM, 0x81)
 	}
 
 	/* Update Secondary Thermal Zone */
-	If (CondRefOf (\_TZ.SKIN, Local0)) {
+	If (CondRefOf (\_TZ.SKIN)) {
 		Notify (\_TZ.SKIN, 0x81)
 	}
 }