perf: New helper function for pmu name
Introduce perf_pmu_name() helper function that returns the name of the
pmu. This gives us a generic way to get the name of a pmu regardless of
how an architecture identifies it internally.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Robert Richter <robert.richter@amd.com>
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 403d180..e253469 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -85,6 +85,11 @@
void __weak perf_event_print_debug(void) { }
+extern __weak const char *perf_pmu_name(void)
+{
+ return "pmu";
+}
+
static DEFINE_PER_CPU(int, perf_disable_count);
void perf_disable(void)