The rcu_kthread_do_work() function has a single-line body and only one
remaining caller.  This commit therefore saves a few lines of code by
inlining rcu_kthread_do_work() into its sole remaining caller.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
        return 0;
 }
 
-static void rcu_kthread_do_work(void)
-{
-       rcu_do_batch(this_cpu_ptr(&rcu_data));
-}
-
 static void rcu_cpu_kthread_setup(unsigned int cpu)
 {
        struct sched_param sp;
                *workp = 0;
                local_irq_enable();
                if (work)
-                       rcu_kthread_do_work();
+                       rcu_do_batch(this_cpu_ptr(&rcu_data));
                local_bh_enable();
                if (*workp == 0) {
                        trace_rcu_utilization(TPS("End CPU kthread@rcu_wait"));