diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index c17923f76a04..cb77c2e0ecbe 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -637,7 +637,9 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info)
 	init_waitqueue_head(&dmabuf->poll);
 	dmabuf->cb_excl.poll = dmabuf->cb_shared.poll = &dmabuf->poll;
 	dmabuf->cb_excl.active = dmabuf->cb_shared.active = 0;
+#if defined(CONFIG_DEBUG_FS)
 	dmabuf->ktime = ktime_get();
+#endif
 	atomic_set(&dmabuf->dent_count, 1);
 
 	if (!resv) {
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index cd741e1557f6..7d76fd3d0cbf 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -441,7 +441,9 @@ struct dma_buf {
 	const char *exp_name;
 	const char *name;
 	spinlock_t name_lock;
+#if defined(CONFIG_DEBUG_FS)
 	ktime_t ktime;
+#endif
 	struct module *owner;
 	struct list_head list_node;
 	void *priv;