Commit 69362983 authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt (Google)
Browse files

tracing/mmiotrace: Remove reference to unused per CPU data pointer 

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

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/20250505212234.696945463@goodmis.org


Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent 17f89102

kernel/trace/trace_mmiotrace.c

+2 −10
Original line number Diff line number Diff line
@@ -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)