__iter_div_u64_rem 224 include/linux/time.h a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns); __iter_div_u64_rem 184 include/linux/time64.h a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);