Commit ec625cb2 authored Mar 18, 2009 by Ingo Molnar

tracepoints: dont update zero-sized tracepoint sections

Zero-sized tracepoint sections can occur if tracing is enabled but
no tracepoint is defined. Do not emit a warning in that case.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
LKML-Reference: <1237394936.3132.1.camel@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 09933a10

kernel/tracepoint.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -278,10 +278,8 @@ tracepoint_update_probe_range(struct tracepoint begin, struct tracepoint end)
		struct tracepoint *iter;
		struct tracepoint_entry *mark_entry;

		if (!begin) {
		WARN_ON_ONCE(1);
		if (!begin)
		return;
		}

		mutex_lock(&tracepoints_mutex);
		for (iter = begin; iter < end; iter++) {