ACPI: CELSIUS_TO_KELVIN fixup

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

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Thomas Sujith <sujith.thomas@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 7400363..aee371f 100644 (file)
--- a/drivers/acpi/thermal.c
+++ b/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");
 

diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index e4b76c7..bba7712 100644 (file)
--- a/include/linux/thermal.h
+++ b/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];