提交 ec625cb2 编写于 作者: I 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: NIngo Molnar <mingo@elte.hu>
上级 09933a10
......@@ -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++) {
......
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