1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-buf-sysfs-stats.h b/drivers/dma-buf/dma-buf-sysfs-stats.h
new file mode 100644
index 000000000..7a8a995b7
--- /dev/null
+++ b/drivers/dma-buf/dma-buf-sysfs-stats.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * DMA-BUF sysfs statistics.
+ *
+ * Copyright (C) 2021 Google LLC.
+ */
+
+#ifndef _DMA_BUF_SYSFS_STATS_H
+#define _DMA_BUF_SYSFS_STATS_H
+
+#ifdef CONFIG_DMABUF_SYSFS_STATS
+
+int dma_buf_init_sysfs_statistics(void);
+void dma_buf_uninit_sysfs_statistics(void);
+
+int dma_buf_stats_setup(struct dma_buf *dmabuf, struct file *file);
+
+void dma_buf_stats_teardown(struct dma_buf *dmabuf);
+#else
+
+static inline int dma_buf_init_sysfs_statistics(void)
+{
+	return 0;
+}
+
+static inline void dma_buf_uninit_sysfs_statistics(void) {}
+
+static inline int dma_buf_stats_setup(struct dma_buf *dmabuf, struct file *file)
+{
+	return 0;
+}
+
+static inline void dma_buf_stats_teardown(struct dma_buf *dmabuf) {}
+#endif
+#endif // _DMA_BUF_SYSFS_STATS_H