On Tue, Oct 09, 2018 at 08:47:26AM +0800, kbuild test robot wrote: > Hi pascal, > > Thank you for the patch! Perhaps something to improve: > [ ... ] > 42 > 43 static int pmic_wdt_stop(struct watchdog_device *wdd) > 44 { > 45 struct stpmic1_wdt *wdt = watchdog_get_drvdata(wdd); > 46 > 47 return regmap_update_bits(wdt->pmic->regmap, > > 48 WCHDG_CR, WDT_START_MASK, ~WDT_START); Maybe use #define WDT_STOP 0 instead, or just write 0. ~WDT_START may be convenient but not really correct. Guenter