Commit 6e1b4bd1 authored by Yuntao Wang's avatar Yuntao Wang Committed by Steven Rostedt
Browse files

tracing: Remove duplicate warnings when calling trace_create_file() 

Since the same warning message is already printed in the
trace_create_file() function, there is no need to print it again.

Link: https://lkml.kernel.org/r/20220109162232.361747-1-ytcoode@gmail.com



Signed-off-by: default avatarYuntao Wang <ytcoode@gmail.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent dfea08a2

kernel/trace/trace_events.c

+3 −9
Original line number Diff line number Diff line
@@ -3461,10 +3461,8 @@ create_event_toplevel_files(struct dentry *parent, struct trace_array *tr) 


	entry = trace_create_file("enable", TRACE_MODE_WRITE, d_events,

				  tr, &ftrace_tr_enable_fops);

	if (!entry) {

		pr_warn("Could not create tracefs 'enable' entry\n");

	if (!entry)

		return -ENOMEM;

	}



	/* There are not as crucial, just warn if they are not created */
@@ -3480,17 +3478,13 @@ create_event_toplevel_files(struct dentry *parent, struct trace_array *tr) 
		pr_warn("Could not create tracefs 'set_event_notrace_pid' entry\n");



	/* ring buffer internal formats */

	entry = trace_create_file("header_page", TRACE_MODE_READ, d_events,

	trace_create_file("header_page", TRACE_MODE_READ, d_events,

				  ring_buffer_print_page_header,

				  &ftrace_show_header_fops);

	if (!entry)

		pr_warn("Could not create tracefs 'header_page' entry\n");



	entry = trace_create_file("header_event", TRACE_MODE_READ, d_events,

	trace_create_file("header_event", TRACE_MODE_READ, d_events,

				  ring_buffer_print_entry_header,

				  &ftrace_show_header_fops);

	if (!entry)

		pr_warn("Could not create tracefs 'header_event' entry\n");



	tr->event_dir = d_events;