linux-kernel - [PATCH 8/8] thermal: remove kelvin to/from Celsius conversion helpers from <linux/thermal.h>

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Date:   Sun, 24 Nov 2019 23:08:50 +0900
From:   Akinobu Mita <akinobu.mita@...il.com>
To:     linux-nvme@...ts.infradead.org, linux-hwmon@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Akinobu Mita <akinobu.mita@...il.com>,
        Sujith Thomas <sujith.thomas@...el.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...com>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>
Subject: [PATCH 8/8] thermal: remove kelvin to/from Celsius conversion helpers from <linux/thermal.h>

This removes the kelvin to/from Celsius conversion helpers in
<linux/thermal.h> which were switched to <linux/temperature.h> helpers.

DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET() is only used by ACPI thermal
zone driver and the usage is specific to the driver.  So this macro
is moved to the ACPI thermal driver rather than generic header.

Cc: Sujith Thomas <sujith.thomas@...el.com>
Cc: Darren Hart <dvhart@...radead.org>
Cc: Andy Shevchenko <andy@...radead.org>
Cc: Zhang Rui <rui.zhang@...el.com>
Cc: Eduardo Valentin <edubezval@...il.com>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: Amit Kucheria <amit.kucheria@...durent.com>
Cc: Jean Delvare <jdelvare@...e.com>
Cc: Guenter Roeck <linux@...ck-us.net>
Cc: Keith Busch <kbusch@...nel.org>
Cc: Jens Axboe <axboe@...com>
Cc: Christoph Hellwig <hch@....de>
Cc: Sagi Grimberg <sagi@...mberg.me>
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
---
 drivers/acpi/thermal.c  |  2 ++
 include/linux/thermal.h | 11 -----------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index bd9b6eb..370e114 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -42,6 +42,8 @@
 #define ACPI_THERMAL_MAX_ACTIVE	10
 #define ACPI_THERMAL_MAX_LIMIT_STR_LEN 65
 
+#define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100)
+
 #define _COMPONENT		ACPI_THERMAL_COMPONENT
 ACPI_MODULE_NAME("thermal");
 
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index ed549e4..06e1695 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -33,17 +33,6 @@
 /* use value, which < 0K, to indicate an invalid/uninitialized temperature */
 #define THERMAL_TEMP_INVALID	-274000
 
-/* Unit conversion macros */
-#define DECI_KELVIN_TO_CELSIUS(t)	({			\
-	long _t = (t);						\
-	((_t-2732 >= 0) ? (_t-2732+5)/10 : (_t-2732-5)/10);	\
-})
-#define CELSIUS_TO_DECI_KELVIN(t)	((t)*10+2732)
-#define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100)
-#define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732)
-#define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off))
-#define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732)
-
 /* Default Thermal Governor */
 #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)
 #define DEFAULT_THERMAL_GOVERNOR       "step_wise"
-- 
2.7.4