1 files changed, 10 insertions, 15 deletions

diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index e62cbf78eab6..2a98a206acc2 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -32,34 +32,29 @@ static void mmio_reset_data(struct trace_array *tr)
                 tracing_reset(tr, cpu);
 }
 
-static void mmio_trace_init(struct trace_array *tr)
+static int mmio_trace_init(struct trace_array *tr)
 {
         pr_debug("in %s\n", __func__);
         mmio_trace_array = tr;
-        if (tr->ctrl) {
-                mmio_reset_data(tr);
-                enable_mmiotrace();
-        }
+
+        mmio_reset_data(tr);
+        enable_mmiotrace();
+        return 0;
 }
 
 static void mmio_trace_reset(struct trace_array *tr)
 {
         pr_debug("in %s\n", __func__);
-        if (tr->ctrl)
-                disable_mmiotrace();
+
+        disable_mmiotrace();
         mmio_reset_data(tr);
         mmio_trace_array = NULL;
 }
 
-static void mmio_trace_ctrl_update(struct trace_array *tr)
+static void mmio_trace_start(struct trace_array *tr)
 {
         pr_debug("in %s\n", __func__);
-        if (tr->ctrl) {
-                mmio_reset_data(tr);
-                enable_mmiotrace();
-        } else {
-                disable_mmiotrace();
-        }
+        mmio_reset_data(tr);
 }
 
 static int mmio_print_pcidev(struct trace_seq *s, const struct pci_dev *dev)
@@ -296,10 +291,10 @@ static struct tracer mmio_tracer __read_mostly =
         .name           = "mmiotrace",
         .init           = mmio_trace_init,
         .reset          = mmio_trace_reset,
+        .start          = mmio_trace_start,
         .pipe_open      = mmio_pipe_open,
         .close          = mmio_close,
         .read           = mmio_read,
-        .ctrl_update    = mmio_trace_ctrl_update,
         .print_line     = mmio_print_line,
 };