Hi Jack, This code was added in f46418c5cadf "drivers/rtc/rtc-ds3232.c: add alarm function". Smatch complains because bcd2bin() returns an unsigned so it's never less than zero and the whole block is a no-op. I'm not sure what was intended here, could you take a look? drivers/rtc/rtc-ds3232.c +292 ds3232_update_alarm(13) warn: unsigned 'bcd2bin(buf[0])' is never less than zero. 291 292 buf[0] = bcd2bin(buf[0]) < 0 || (ds3232->rtc->irq_data & RTC_UF) ? 293 0x80 : buf[0]; 294 buf[1] = bcd2bin(buf[1]) < 0 || (ds3232->rtc->irq_data & RTC_UF) ? 295 0x80 : buf[1]; 296 buf[2] = bcd2bin(buf[2]) < 0 || (ds3232->rtc->irq_data & RTC_UF) ? 297 0x80 : buf[2]; 298 buf[3] = bcd2bin(buf[3]) < 0 || (ds3232->rtc->irq_data & RTC_UF) ? 299 0x80 : buf[3]; 300 regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
