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: Steven Rostedt (Google) <rostedt@goodmis.org>

diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index ba5858866b2f0c973ccb36d1772f0213a5e409ef..c706544be60cca2be6cc6e427a72284223fc2dd3 100644 (file)
--- 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)