rcu: Remove rcu_is_nocb_cpu()

The rcu_is_nocb_cpu() function is no longer used, so this commmit
removes it.

Reported-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Uladzislau Rezki <uladzislau.rezki@sony.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index 24b5f2c..4c53a2c 100644 (file)
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -538,10 +538,8 @@ extern struct workqueue_struct *rcu_par_gp_wq;
 #endif /* #else #ifdef CONFIG_TINY_RCU */
 
 #ifdef CONFIG_RCU_NOCB_CPU
-bool rcu_is_nocb_cpu(int cpu);
 void rcu_bind_current_to_nocb(void);
 #else
-static inline bool rcu_is_nocb_cpu(int cpu) { return false; }
 static inline void rcu_bind_current_to_nocb(void) { }
 #endif
 

diff --git a/kernel/rcu/tree_nocb.h b/kernel/rcu/tree_nocb.h
index 636d054..02e1d05 100644 (file)
--- a/kernel/rcu/tree_nocb.h
+++ b/kernel/rcu/tree_nocb.h
@@ -215,14 +215,6 @@ static void rcu_init_one_nocb(struct rcu_node *rnp)
        init_swait_queue_head(&rnp->nocb_gp_wq[1]);
 }
 
-/* Is the specified CPU a no-CBs CPU? */
-bool rcu_is_nocb_cpu(int cpu)
-{
-       if (cpumask_available(rcu_nocb_mask))
-               return cpumask_test_cpu(cpu, rcu_nocb_mask);
-       return false;
-}
-
 static bool __wake_nocb_gp(struct rcu_data *rdp_gp,
                           struct rcu_data *rdp,
                           bool force, unsigned long flags)