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-rw-r--r--tools/lib/traceevent/event-parse.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 8bd7c6a4cbd7..8ca1b8ee50da 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -116,7 +116,7 @@ struct pevent_plugin_option {
char *name;
char *plugin_alias;
char *description;
- char *value;
+ const char *value;
void *priv;
int set;
};
@@ -154,6 +154,10 @@ struct pevent_plugin_option {
* .plugin_alias is used to give a shorter name to access
* the vairable. Useful if a plugin handles more than one event.
*
+ * If .value is not set, then it is considered a boolean and only
+ * .set will be processed. If .value is defined, then it is considered
+ * a string option and .set will be ignored.
+ *
* PEVENT_PLUGIN_ALIAS: (optional)
* The name to use for finding options (uses filename if not defined)
*/