[PATCH v4 10/12] iwlwifi: use <linux/units.h> helpers

[Akinobu Mita <akinobu.mita@xxxxxxxxx>]

This switches the iwlwifi driver to use celsius_to_kelvin() and
kelvin_to_celsius() in <linux/units.h>.

Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Cc: Johannes Berg <johannes.berg@xxxxxxxxx>
Cc: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Cc: Luca Coelho <luciano.coelho@xxxxxxxxx>
Cc: Intel Linux Wireless <linuxwifi@xxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Acked-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
---
* v4
- add Reviewed-by and Acked-by tags
- remove "wireless: " in the title

 drivers/net/wireless/intel/iwlwifi/dvm/dev.h     | 5 -----
 drivers/net/wireless/intel/iwlwifi/dvm/devices.c | 6 ++++--
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/dev.h b/drivers/net/wireless/intel/iwlwifi/dvm/dev.h
index be5ef4c..8d83800 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/dev.h
@@ -237,11 +237,6 @@ struct iwl_sensitivity_ranges {
 	u16 nrg_th_cca;
 };
 
-
-#define KELVIN_TO_CELSIUS(x) ((x)-273)
-#define CELSIUS_TO_KELVIN(x) ((x)+273)
-
-
 /******************************************************************************
  *
  * Functions implemented in core module which are forward declared here
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/devices.c b/drivers/net/wireless/intel/iwlwifi/dvm/devices.c
index dc3f197..d42bc46 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/devices.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/devices.c
@@ -10,6 +10,8 @@
  *
  *****************************************************************************/
 
+#include <linux/units.h>
+
 /*
  * DVM device-specific data & functions
  */
@@ -345,7 +347,7 @@ static s32 iwl_temp_calib_to_offset(struct iwl_priv *priv)
 static void iwl5150_set_ct_threshold(struct iwl_priv *priv)
 {
 	const s32 volt2temp_coef = IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF;
-	s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY) -
+	s32 threshold = (s32)celsius_to_kelvin(CT_KILL_THRESHOLD_LEGACY) -
 			iwl_temp_calib_to_offset(priv);
 
 	priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef;
@@ -381,7 +383,7 @@ static void iwl5150_temperature(struct iwl_priv *priv)
 	vt = le32_to_cpu(priv->statistics.common.temperature);
 	vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset;
 	/* now vt hold the temperature in Kelvin */
-	priv->temperature = KELVIN_TO_CELSIUS(vt);
+	priv->temperature = kelvin_to_celsius(vt);
 	iwl_tt_handler(priv);
 }
 
-- 
2.7.4