diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index f9139dc1262cdf..e3c80cfd4eec12 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6706,9 +6706,7 @@ tracing_read_pipe(struct file *filp, char __user *ubuf,
 		cnt = PAGE_SIZE - 1;
 
 	/* reset all but tr, trace, and overruns */
-	memset(&iter->seq, 0,
-	       sizeof(struct trace_iterator) -
-	       offsetof(struct trace_iterator, seq));
+	memset_startat(iter, 0, seq);
 	cpumask_clear(iter->started);
 	trace_seq_init(&iter->seq);
 	iter->pos = -1;