| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. |
| */ |
| |
| #ifndef _DMA_BUF_REF_H |
| #define _DMA_BUF_REF_H |
| |
| struct dma_buf; |
| struct seq_file; |
| |
| #ifdef CONFIG_DEBUG_DMA_BUF_REF |
| void dma_buf_ref_init(struct dma_buf *b); |
| void dma_buf_ref_destroy(struct dma_buf *b); |
| void dma_buf_ref_mod(struct dma_buf *b, int nr); |
| int dma_buf_ref_show(struct seq_file *s, struct dma_buf *dmabuf); |
| |
| #else |
| static inline void dma_buf_ref_init(struct dma_buf *b) {} |
| static inline void dma_buf_ref_destroy(struct dma_buf *b) {} |
| static inline void dma_buf_ref_mod(struct dma_buf *b, int nr) {} |
| static inline int dma_buf_ref_show(struct seq_file *s, struct dma_buf *dmabuf) |
| { |
| return -ENOMEM; |
| } |
| #endif |
| |
| |
| #endif /* _DMA_BUF_REF_H */ |
