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Commit 687c878a authored by zhangwei(Jovi)'s avatar zhangwei(Jovi) Committed by Steven Rostedt
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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: default avatarzhangwei(Jovi) <jovi.zhangwei@huawei.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 6c43e554

kernel/trace/trace.c

+2 −7
Original line number Diff line number Diff line
@@ -5205,8 +5205,6 @@ static inline int register_snapshot_cmd(void) { return 0; } 


struct dentry *tracing_init_dentry_tr(struct trace_array *tr)

{

	static int once;



	if (tr->dir)

		return tr->dir;
@@ -5216,11 +5214,8 @@ struct dentry *tracing_init_dentry_tr(struct trace_array *tr) 
	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;

}