linux-kernel - [PATCH 8/10] ACPI: CELSIUS_TO

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Message-Id: <1200556279.2935.120.camel@acpi-sony.sh.intel.com>
Date:	Thu, 17 Jan 2008 15:51:19 +0800
From:	Zhang Rui <rui.zhang@...el.com>
To:	lenb@...nel.org
Cc:	linux-acpi@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, rui.zhang@...el.com,
	sujith.thomas@...el.com
Subject: [PATCH 8/10] ACPI: CELSIUS_TO_KELVIN fixup

From: Zhang Rui <rui.zhang@...el.com>

Fix an imprecision in CELSIUS_TO_KELVIN and move these
two macroes to a proper place.

Signed-off-by: Zhang Rui <rui.zhang@...el.com>
Signed-off-by: Thomas Sujith <sujith.thomas@...el.com>
---
 drivers/acpi/thermal.c  |    3 ---
 include/linux/thermal.h |    4 ++++
 2 files changed, 4 insertions(+), 3 deletions(-)

Index: linux-2.6/drivers/acpi/thermal.c
===================================================================
--- linux-2.6.orig/drivers/acpi/thermal.c
+++ linux-2.6/drivers/acpi/thermal.c
@@ -65,9 +65,6 @@
 #define ACPI_THERMAL_MAX_ACTIVE	10
 #define ACPI_THERMAL_MAX_LIMIT_STR_LEN 65
 
-#define KELVIN_TO_CELSIUS(t)    (long)(((long)t-2732>=0) ? ((long)t-2732+5)/10 : ((long)t-2732-5)/10)
-#define CELSIUS_TO_KELVIN(t)	((t+273)*10)
-
 #define _COMPONENT		ACPI_THERMAL_COMPONENT
 ACPI_MODULE_NAME("thermal");
 
Index: linux-2.6/include/linux/thermal.h
===================================================================
--- linux-2.6.orig/include/linux/thermal.h
+++ linux-2.6/include/linux/thermal.h
@@ -61,6 +61,10 @@ struct thermal_cooling_device {
 	struct list_head node;
 };
 
+#define KELVIN_TO_CELSIUS(t)	(long)(((long)t-2732 >= 0) ?	\
+				((long)t-2732+5)/10 : ((long)t-2732-5)/10)
+#define CELSIUS_TO_KELVIN(t)	((t)*10+2732)
+
 struct thermal_zone_device {
 	int id;
 	char type[THERMAL_NAME_LENGTH];


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