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Subject[PATCH v4 09/12] iwlegacy: use <linux/units.h> helpers
Date
This switches the iwlegacy driver to use celsius_to_kelvin() and
kelvin_to_celsius() in <linux/units.h>.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
---
* v4
- add Reviewed-by and Acked-by tags
- remove "wireless: " in the title

drivers/net/wireless/intel/iwlegacy/4965-mac.c | 3 ++-
drivers/net/wireless/intel/iwlegacy/4965.c | 11 ++++++-----
drivers/net/wireless/intel/iwlegacy/common.h | 3 ---
3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlegacy/4965-mac.c b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
index 3664f56..d6766eb 100644
--- a/drivers/net/wireless/intel/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
@@ -27,6 +27,7 @@
#include <linux/firmware.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
+#include <linux/units.h>

#include <net/mac80211.h>

@@ -6467,7 +6468,7 @@ il4965_set_hw_params(struct il_priv *il)
il->hw_params.valid_rx_ant = il->cfg->valid_rx_ant;

il->hw_params.ct_kill_threshold =
- CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY);
+ celsius_to_kelvin(CT_KILL_THRESHOLD_LEGACY);

il->hw_params.sens = &il4965_sensitivity;
il->hw_params.beacon_time_tsf_bits = IL4965_EXT_BEACON_TIME_POS;
diff --git a/drivers/net/wireless/intel/iwlegacy/4965.c b/drivers/net/wireless/intel/iwlegacy/4965.c
index 32699b6..31b346c 100644
--- a/drivers/net/wireless/intel/iwlegacy/4965.c
+++ b/drivers/net/wireless/intel/iwlegacy/4965.c
@@ -17,6 +17,7 @@
#include <linux/sched.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
+#include <linux/units.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <asm/unaligned.h>
@@ -1104,7 +1105,7 @@ il4965_fill_txpower_tbl(struct il_priv *il, u8 band, u16 channel, u8 is_ht40,
/* get current temperature (Celsius) */
current_temp = max(il->temperature, IL_TX_POWER_TEMPERATURE_MIN);
current_temp = min(il->temperature, IL_TX_POWER_TEMPERATURE_MAX);
- current_temp = KELVIN_TO_CELSIUS(current_temp);
+ current_temp = kelvin_to_celsius(current_temp);

/* select thermal txpower adjustment params, based on channel group
* (same frequency group used for mimo txatten adjustment) */
@@ -1611,7 +1612,7 @@ il4965_hw_get_temperature(struct il_priv *il)
(temperature * 97) / 100 + TEMPERATURE_CALIB_KELVIN_OFFSET;

D_TEMP("Calibrated temperature: %dK, %dC\n", temperature,
- KELVIN_TO_CELSIUS(temperature));
+ kelvin_to_celsius(temperature));

return temperature;
}
@@ -1671,11 +1672,11 @@ il4965_temperature_calib(struct il_priv *il)
if (il->temperature != temp) {
if (il->temperature)
D_TEMP("Temperature changed " "from %dC to %dC\n",
- KELVIN_TO_CELSIUS(il->temperature),
- KELVIN_TO_CELSIUS(temp));
+ kelvin_to_celsius(il->temperature),
+ kelvin_to_celsius(temp));
else
D_TEMP("Temperature " "initialized to %dC\n",
- KELVIN_TO_CELSIUS(temp));
+ kelvin_to_celsius(temp));
}

il->temperature = temp;
diff --git a/drivers/net/wireless/intel/iwlegacy/common.h b/drivers/net/wireless/intel/iwlegacy/common.h
index e7fb8e6..bc9cd7e 100644
--- a/drivers/net/wireless/intel/iwlegacy/common.h
+++ b/drivers/net/wireless/intel/iwlegacy/common.h
@@ -779,9 +779,6 @@ struct il_sensitivity_ranges {
u16 nrg_th_cca;
};

-#define KELVIN_TO_CELSIUS(x) ((x)-273)
-#define CELSIUS_TO_KELVIN(x) ((x)+273)
-
/**
* struct il_hw_params
* @bcast_id: f/w broadcast station ID
--
2.7.4
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