Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
+2
-10
+2
-10
kernel/trace/trace_mmiotrace.c
+2
-10
kernel/trace/trace_mmiotrace.c
···
291
291
device_initcall(init_mmio_trace);
292
292
293
293
static void __trace_mmiotrace_rw(struct trace_array *tr,
294
-
struct trace_array_cpu *data,
295
294
struct mmiotrace_rw *rw)
296
295
{
297
296
struct trace_buffer *buffer = tr->array_buffer.buffer;
···
314
315
void mmio_trace_rw(struct mmiotrace_rw *rw)
315
316
{
316
317
struct trace_array *tr = mmio_trace_array;
317
-
struct trace_array_cpu *data = per_cpu_ptr(tr->array_buffer.data, smp_processor_id());
318
-
__trace_mmiotrace_rw(tr, data, rw);
318
+
__trace_mmiotrace_rw(tr, rw);
319
319
}
320
320
321
321
static void __trace_mmiotrace_map(struct trace_array *tr,
322
-
struct trace_array_cpu *data,
323
322
struct mmiotrace_map *map)
324
323
{
325
324
struct trace_buffer *buffer = tr->array_buffer.buffer;
···
341
344
void mmio_trace_mapping(struct mmiotrace_map *map)
342
345
{
343
346
struct trace_array *tr = mmio_trace_array;
344
-
struct trace_array_cpu *data;
345
-
346
-
preempt_disable();
347
-
data = per_cpu_ptr(tr->array_buffer.data, smp_processor_id());
348
-
__trace_mmiotrace_map(tr, data, map);
349
-
preempt_enable();
347
+
__trace_mmiotrace_map(tr, map);
350
348
}
351
349
352
350
int mmio_trace_printk(const char *fmt, va_list args)