diff --git a/[refs] b/[refs]
index fdcd32a619a2..92ea0315ac26 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3424dabb6508d538e9ec1a2aa889fefbd83df2d0
+refs/heads/master: c43ca04b5e7854b3996f84a495e4553941e76266
diff --git a/trunk/arch/metag/kernel/perf/perf_event.c b/trunk/arch/metag/kernel/perf/perf_event.c
index f38bf6d4dc55..8096db2a550b 100644
--- a/trunk/arch/metag/kernel/perf/perf_event.c
+++ b/trunk/arch/metag/kernel/perf/perf_event.c
@@ -211,7 +211,7 @@ void metag_pmu_event_update(struct perf_event *event,
 	/*
 	 * Calculate the delta and add it to the counter.
 	 */
-	delta = new_raw_count - prev_raw_count;
+	delta = (new_raw_count - prev_raw_count) & MAX_PERIOD;
 
 	local64_add(delta, &event->count);
 }