2019年11月13日(水) 1:38 Guenter Roeck <linux@xxxxxxxxxxxx>: > > On Wed, Nov 13, 2019 at 12:00:22AM +0900, Akinobu Mita wrote: > > 2019年11月12日(火) 23:21 Christoph Hellwig <hch@xxxxxx>: > > > > > > On Tue, Nov 12, 2019 at 11:19:46PM +0900, Akinobu Mita wrote: > > > > OK. I'll add two macros. > > > > > > > > #define MILLICELSIUS_TO_KELVIN(t) ((t) / 1000 + 273) > > DIV_ROUND_CLOSEST() ? How about these definitions? #define MILLICELSIUS_TO_KELVIN(t) DIV_ROUND_CLOSEST((t) + 273150, 1000) #define KELVIN_TO_MILLICELSIUS(t) ((t) * 1000L - 273150)