| /* Copyright (c) 2018, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #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 */ |
