diff options
author | Andrew Morton <akpm@linux-foundation.org> | 2008-10-17 11:51:16 -0400 |
---|---|---|
committer | Jean Delvare <khali@mahadeva.delvare> | 2008-10-17 11:51:16 -0400 |
commit | a80e8ee66793ec2e7ce27fd0495a7b9c8e0a2a24 (patch) | |
tree | 49613f960b31f84ed56656367f1758c9cc07ee7f /drivers/hwmon | |
parent | 4ed1077953f531b3fef4af4b4ade48a828c48869 (diff) |
hwmon: (max1619) Use inline functions instead of macros
Macros evaluating their arguments more than once are evil.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r-- | drivers/hwmon/max1619.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c index 1ab1cacad59..7897754f3a5 100644 --- a/drivers/hwmon/max1619.c +++ b/drivers/hwmon/max1619.c | |||
@@ -69,11 +69,18 @@ I2C_CLIENT_INSMOD_1(max1619); | |||
69 | #define MAX1619_REG_W_TCRIT_HYST 0x13 | 69 | #define MAX1619_REG_W_TCRIT_HYST 0x13 |
70 | 70 | ||
71 | /* | 71 | /* |
72 | * Conversions and various macros | 72 | * Conversions |
73 | */ | 73 | */ |
74 | 74 | ||
75 | #define TEMP_FROM_REG(val) ((val & 0x80 ? val-0x100 : val) * 1000) | 75 | static int temp_from_reg(int val) |
76 | #define TEMP_TO_REG(val) ((val < 0 ? val+0x100*1000 : val) / 1000) | 76 | { |
77 | return (val & 0x80 ? val-0x100 : val) * 1000; | ||
78 | } | ||
79 | |||
80 | static int temp_to_reg(int val) | ||
81 | { | ||
82 | return (val < 0 ? val+0x100*1000 : val) / 1000; | ||
83 | } | ||
77 | 84 | ||
78 | /* | 85 | /* |
79 | * Functions declaration | 86 | * Functions declaration |
@@ -135,7 +142,7 @@ struct max1619_data { | |||
135 | static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \ | 142 | static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \ |
136 | { \ | 143 | { \ |
137 | struct max1619_data *data = max1619_update_device(dev); \ | 144 | struct max1619_data *data = max1619_update_device(dev); \ |
138 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \ | 145 | return sprintf(buf, "%d\n", temp_from_reg(data->value)); \ |
139 | } | 146 | } |
140 | show_temp(temp_input1); | 147 | show_temp(temp_input1); |
141 | show_temp(temp_input2); | 148 | show_temp(temp_input2); |
@@ -153,7 +160,7 @@ static ssize_t set_##value(struct device *dev, struct device_attribute *attr, co | |||
153 | long val = simple_strtol(buf, NULL, 10); \ | 160 | long val = simple_strtol(buf, NULL, 10); \ |
154 | \ | 161 | \ |
155 | mutex_lock(&data->update_lock); \ | 162 | mutex_lock(&data->update_lock); \ |
156 | data->value = TEMP_TO_REG(val); \ | 163 | data->value = temp_to_reg(val); \ |
157 | i2c_smbus_write_byte_data(client, reg, data->value); \ | 164 | i2c_smbus_write_byte_data(client, reg, data->value); \ |
158 | mutex_unlock(&data->update_lock); \ | 165 | mutex_unlock(&data->update_lock); \ |
159 | return count; \ | 166 | return count; \ |