fan_tach_present 185 drivers/hwmon/aspeed-pwm-tacho.c bool fan_tach_present[16]; fan_tach_present 637 drivers/hwmon/aspeed-pwm-tacho.c if (!priv->fan_tach_present[index]) fan_tach_present 751 drivers/hwmon/aspeed-pwm-tacho.c priv->fan_tach_present[index] = true;