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authorIngo Molnar <mingo@kernel.org>2014-03-11 11:34:27 +0100
committerIngo Molnar <mingo@kernel.org>2014-03-11 11:34:27 +0100
commita02ed5e3e05ec5e8af21e645cccc77f3a6480aaf (patch)
tree95a0df31b0c9b1e0357b8dd378e2eab637970df4 /kernel/trace
parent2b3942e4bb20ef8ef26515bd958c2df83d9a6210 (diff)
parent96b3d28bf4b00f62fc8386ff5d487d1830793a3d (diff)
downloadlwn-a02ed5e3e05ec5e8af21e645cccc77f3a6480aaf.tar.gz
lwn-a02ed5e3e05ec5e8af21e645cccc77f3a6480aaf.zip
Merge branch 'sched/urgent' into sched/core
Pick up fixes before queueing up new changes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace_events.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index e71ffd4eccb5..f3989ceb5cd5 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1777,6 +1777,16 @@ static void trace_module_add_events(struct module *mod)
{
struct ftrace_event_call **call, **start, **end;
+ if (!mod->num_trace_events)
+ return;
+
+ /* Don't add infrastructure for mods without tracepoints */
+ if (trace_module_has_bad_taint(mod)) {
+ pr_err("%s: module has bad taint, not creating trace events\n",
+ mod->name);
+ return;
+ }
+
start = mod->trace_events;
end = mod->trace_events + mod->num_trace_events;