1 files changed, 0 insertions, 15 deletions

diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index a4df67cbc711..49cb41412eec 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -96,23 +96,9 @@ check_stack(unsigned long ip, unsigned long *stack)
         if (in_nmi())
                 return;
 
-        /*
-         * There's a slight chance that we are tracing inside the
-         * RCU infrastructure, and rcu_irq_enter() will not work
-         * as expected.
-         */
-        if (unlikely(rcu_irq_enter_disabled()))
-                return;
-
         local_irq_save(flags);
         arch_spin_lock(&stack_trace_max_lock);
 
-        /*
-         * RCU may not be watching, make it see us.
-         * The stack trace code uses rcu_sched.
-         */
-        rcu_irq_enter();
-
         /* In case another CPU set the tracer_frame on us */
         if (unlikely(!frame_size))
                 this_size -= tracer_frame;
@@ -205,7 +191,6 @@ check_stack(unsigned long ip, unsigned long *stack)
         }
 
  out:
-        rcu_irq_exit();
         arch_spin_unlock(&stack_trace_max_lock);
         local_irq_restore(flags);
 }