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-rw-r--r--include/linux/tracepoint.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 6b79537a42b1..696a339c592c 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -184,10 +184,11 @@ extern void syscall_unregfunc(void);
* structure. Force alignment to the same alignment as the section start.
*
* When lockdep is enabled, we make sure to always do the RCU portions of
- * the tracepoint code, regardless of whether tracing is on or we match the
- * condition. This lets us find RCU issues triggered with tracepoints even
- * when this tracepoint is off. This code has no purpose other than poking
- * RCU a bit.
+ * the tracepoint code, regardless of whether tracing is on. However,
+ * don't check if the condition is false, due to interaction with idle
+ * instrumentation. This lets us find RCU issues triggered with tracepoints
+ * even when this tracepoint is off. This code has no purpose other than
+ * poking RCU a bit.
*/
#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
extern struct tracepoint __tracepoint_##name; \