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nvme: hwmon: switch to use <linux/units.h> helpers 

This switches the nvme driver to use kelvin_to_millicelsius() and
millicelsius_to_kelvin() in <linux/units.h>.

Link: http://lkml.kernel.org/r/1576386975-7941-8-git-send-email-akinobu.mita@gmail.com
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Sujith Thomas <sujith.thomas@intel.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Amit Kucheria <amit.kucheria@verdurent.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Keith Busch <kbusch@kernel.org>
Cc: Jens Axboe <axboe@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2020-01-30 22:15:53 -08:00 committed by Linus Torvalds
parent 97a0a49d55
commit 7724cd2bff
1 changed files with 5 additions and 8 deletions
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13
drivers/nvme/host/hwmon.c
View File

@ -5,14 +5,11 @@
*/
#include <linux/hwmon.h>
#include <linux/units.h>
#include <asm/unaligned.h>
#include "nvme.h"
/* These macros should be moved to linux/temperature.h */
#define MILLICELSIUS_TO_KELVIN(t) DIV_ROUND_CLOSEST((t) + 273150, 1000)
#define KELVIN_TO_MILLICELSIUS(t) ((t) * 1000L - 273150)
struct nvme_hwmon_data {
struct nvme_ctrl *ctrl;
struct nvme_smart_log log;
@ -35,7 +32,7 @@ static int nvme_get_temp_thresh(struct nvme_ctrl *ctrl, int sensor, bool under,
return -EIO;
if (ret < 0)
return ret;
*temp = KELVIN_TO_MILLICELSIUS(status & NVME_TEMP_THRESH_MASK);
*temp = kelvin_to_millicelsius(status & NVME_TEMP_THRESH_MASK);
return 0;
}
@ -46,7 +43,7 @@ static int nvme_set_temp_thresh(struct nvme_ctrl *ctrl, int sensor, bool under,
unsigned int threshold = sensor << NVME_TEMP_THRESH_SELECT_SHIFT;
int ret;
temp = MILLICELSIUS_TO_KELVIN(temp);
temp = millicelsius_to_kelvin(temp);
threshold |= clamp_val(temp, 0, NVME_TEMP_THRESH_MASK);
if (under)
@ -88,7 +85,7 @@ static int nvme_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
case hwmon_temp_min:
return nvme_get_temp_thresh(data->ctrl, channel, true, val);
case hwmon_temp_crit:
*val = KELVIN_TO_MILLICELSIUS(data->ctrl->cctemp);
*val = kelvin_to_millicelsius(data->ctrl->cctemp);
return 0;
default:
break;
@ -105,7 +102,7 @@ static int nvme_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
temp = get_unaligned_le16(log->temperature);
else
temp = le16_to_cpu(log->temp_sensor[channel - 1]);
*val = KELVIN_TO_MILLICELSIUS(temp);
*val = kelvin_to_millicelsius(temp);
break;
case hwmon_temp_alarm:
*val = !!(log->critical_warning & NVME_SMART_CRIT_TEMPERATURE);