tracing: Use pr_warn_once instead of open coded implementation
Use pr_warn_once, instead of making an open coded implementation.
Link: http://lkml.kernel.org/r/513D8419.20400@huawei.com
Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 7f0e7fa..bba1ba9 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5205,8 +5205,6 @@
struct dentry *tracing_init_dentry_tr(struct trace_array *tr)
{
- static int once;
-
if (tr->dir)
return tr->dir;
@@ -5216,11 +5214,8 @@
if (tr->flags & TRACE_ARRAY_FL_GLOBAL)
tr->dir = debugfs_create_dir("tracing", NULL);
- if (!tr->dir && !once) {
- once = 1;
- pr_warning("Could not create debugfs directory 'tracing'\n");
- return NULL;
- }
+ if (!tr->dir)
+ pr_warn_once("Could not create debugfs directory 'tracing'\n");
return tr->dir;
}