[PATCH v2 4/9] cxl: add common function to disable event trace

[Dave Jiang]

Add a common function for cxl command that disables the event trace for the
instance created.

Signed-off-by: Dave Jiang <dave.ji...@intel.com>
---
 cxl/event_trace.c |    8 ++++++++
 cxl/event_trace.h |    1 +
 2 files changed, 9 insertions(+)

diff --git a/cxl/event_trace.c b/cxl/event_trace.c
index ca2fb94f2eba..33d6812510a3 100644
--- a/cxl/event_trace.c
+++ b/cxl/event_trace.c
@@ -218,3 +218,11 @@ int cxl_event_tracing_enable(struct tracefs_instance 
*inst, const char *system)
        tracefs_trace_on(inst);
        return 0;
 }
+
+int cxl_event_tracing_disable(struct tracefs_instance *inst)
+{
+       if (!tracefs_trace_is_on(inst))
+               return 0;
+
+       return tracefs_trace_off(inst);
+}
diff --git a/cxl/event_trace.h b/cxl/event_trace.h
index 1fb905664625..9aafa942bbb2 100644
--- a/cxl/event_trace.h
+++ b/cxl/event_trace.h
@@ -18,5 +18,6 @@ struct event_ctx {
 
 int cxl_parse_events(struct tracefs_instance *inst, struct event_ctx *ectx);
 int cxl_event_tracing_enable(struct tracefs_instance *inst, const char 
*system);
+int cxl_event_tracing_disable(struct tracefs_instance *inst);
 
 #endif