--- ./kernel/perf_event.c.orig
+++ ./kernel/perf_event.c
@@ -4866,7 +4866,7 @@
 
 static int perf_swevent_init(struct perf_event *event)
 {
-	int event_id = event->attr.config;
+	u64 event_id = event->attr.config;
 
 	if (event->attr.type != PERF_TYPE_SOFTWARE)
 		return -ENOENT;