• Sascha Hauer's avatar
    thermal: consistently use int for temperatures · 17e8351a
    Sascha Hauer authored
    The thermal code uses int, long and unsigned long for temperatures
    in different places.
    Using an unsigned type limits the thermal framework to positive
    temperatures without need. Also several drivers currently will report
    temperatures near UINT_MAX for temperatures below 0°C. This will probably
    immediately shut the machine down due to overtemperature if started below
    'long' is 64bit on several architectures. This is not needed since INT_MAX °mC
    is above the melting point of all known materials.
    Consistently use a plain 'int' for temperatures throughout the thermal code and
    the drivers. This only changes the places in the drivers where the temperature
    is passed around as pointer, when drivers internally use another type this is
    not changed.
    Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
    Acked-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
    Reviewed-by: default avatarJean Delvare <jdelvare@suse.de>
    Reviewed-by: default avatarLukasz Majewski <l.majewski@samsung.com>
    Reviewed-by: default avatarDarren Hart <dvhart@linux.intel.com>
    Reviewed-by: default avatarHeiko Stuebner <heiko@sntech.de>
    Reviewed-by: default avatarPeter Feuerer <peter@piie.net>
    Cc: Punit Agrawal <punit.agrawal@arm.com>
    Cc: Zhang Rui <rui.zhang@intel.com>
    Cc: Eduardo Valentin <edubezval@gmail.com>
    Cc: linux-pm@vger.kernel.org
    Cc: linux-kernel@vger.kernel.org
    Cc: Jean Delvare <jdelvare@suse.de>
    Cc: Peter Feuerer <peter@piie.net>
    Cc: Heiko Stuebner <heiko@sntech.de>
    Cc: Lukasz Majewski <l.majewski@samsung.com>
    Cc: Stephen Warren <swarren@wwwdotorg.org>
    Cc: Thierry Reding <thierry.reding@gmail.com>
    Cc: linux-acpi@vger.kernel.org
    Cc: platform-driver-x86@vger.kernel.org
    Cc: linux-arm-kernel@lists.infradead.org
    Cc: linux-omap@vger.kernel.org
    Cc: linux-samsung-soc@vger.kernel.org
    Cc: Guenter Roeck <linux@roeck-us.net>
    Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
    Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
    Cc: Darren Hart <dvhart@infradead.org>
    Cc: lm-sensors@lm-sensors.org
    Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
kirkwood_thermal.c 3.23 KB