timer->it_clock = THREAD_CLOCK;
        return posix_cpu_timer_create(timer);
 }
-static int thread_cpu_nsleep(const clockid_t which_clock, int flags,
-                             struct timespec *rqtp, struct timespec __user *rmtp)
-{
-       return -EINVAL;
-}
-static long thread_cpu_nsleep_restart(struct restart_block *restart_block)
-{
-       return -EINVAL;
-}
 
 struct k_clock clock_posix_cpu = {
        .clock_getres   = posix_cpu_clock_getres,
                .clock_get      = thread_cpu_clock_get,
                .clock_set      = do_posix_clock_nosettime,
                .timer_create   = thread_cpu_timer_create,
-               .nsleep         = thread_cpu_nsleep,
-               .nsleep_restart = thread_cpu_nsleep_restart,
        };
        struct timespec ts;