From: Steven Rostedt <rostedt@goodmis.org>

The mmiotracer referenced the per CPU array_buffer->data descriptor but
never actually used it. Remove the references to it.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 kernel/trace/trace_mmiotrace.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index ba5858866b2f..c706544be60c 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -291,7 +291,6 @@ __init static int init_mmio_trace(void)
 device_initcall(init_mmio_trace);
 
 static void __trace_mmiotrace_rw(struct trace_array *tr,
-				struct trace_array_cpu *data,
 				struct mmiotrace_rw *rw)
 {
 	struct trace_buffer *buffer = tr->array_buffer.buffer;
@@ -315,12 +314,10 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
 void mmio_trace_rw(struct mmiotrace_rw *rw)
 {
 	struct trace_array *tr = mmio_trace_array;
-	struct trace_array_cpu *data = per_cpu_ptr(tr->array_buffer.data, smp_processor_id());
-	__trace_mmiotrace_rw(tr, data, rw);
+	__trace_mmiotrace_rw(tr, rw);
 }
 
 static void __trace_mmiotrace_map(struct trace_array *tr,
-				struct trace_array_cpu *data,
 				struct mmiotrace_map *map)
 {
 	struct trace_buffer *buffer = tr->array_buffer.buffer;
@@ -344,12 +341,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
 void mmio_trace_mapping(struct mmiotrace_map *map)
 {
 	struct trace_array *tr = mmio_trace_array;
-	struct trace_array_cpu *data;
-
-	preempt_disable();
-	data = per_cpu_ptr(tr->array_buffer.data, smp_processor_id());
-	__trace_mmiotrace_map(tr, data, map);
-	preempt_enable();
+	__trace_mmiotrace_map(tr, map);
 }
 
 int mmio_trace_printk(const char *fmt, va_list args)
-- 
2.47.2