ftrace: replace raw_local_irq_save with local_irq_save

Impact: fix lockdep disabling itself when function tracing is enabled

The raw_local_irq_saves used in ftrace is causing problems with
lockdep. (it thinks the irq flags are out of sync and disables
itself with a warning)

The raw ops here are not needed, and the normal local_irq_save is fine.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 4a904623e05d..dff4bee591b9 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1051,7 +1051,7 @@ function_trace_call(unsigned long ip, unsigned long parent_ip)
          * Need to use raw, since this must be called before the
          * recursive protection is performed.
          */
-        raw_local_irq_save(flags);
+        local_irq_save(flags);
         cpu = raw_smp_processor_id();
         data = tr->data[cpu];
         disabled = atomic_inc_return(&data->disabled);
@@ -1062,7 +1062,7 @@ function_trace_call(unsigned long ip, unsigned long parent_ip)
         }
 
         atomic_dec(&data->disabled);
-        raw_local_irq_restore(flags);
+        local_irq_restore(flags);
 }
 
 #ifdef CONFIG_FUNCTION_RET_TRACER