[linux-2.6-block.git] / drivers / dma-buf / dma-buf-sysfs-stats.h

/* 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
Commit	Line	Data
bdb8d06d HV	1	/* SPDX-License-Identifier: GPL-2.0-only */
	2	/*
	3	* DMA-BUF sysfs statistics.
	4	*
	5	* Copyright (C) 2021 Google LLC.
	6	*/
	7
	8	#ifndef _DMA_BUF_SYSFS_STATS_H
	9	#define _DMA_BUF_SYSFS_STATS_H
	10
	11	#ifdef CONFIG_DMABUF_SYSFS_STATS
	12
	13	int dma_buf_init_sysfs_statistics(void);
	14	void dma_buf_uninit_sysfs_statistics(void);
	15
f728a5ea	16	int dma_buf_stats_setup(struct dma_buf dmabuf, struct file file);
bdb8d06d	17
bdb8d06d	18	void dma_buf_stats_teardown(struct dma_buf *dmabuf);
bdb8d06d HV	19	#else
	20
	21	static inline int dma_buf_init_sysfs_statistics(void)
	22	{
	23	return 0;
	24	}
	25
	26	static inline void dma_buf_uninit_sysfs_statistics(void) {}
	27
f728a5ea	28	static inline int dma_buf_stats_setup(struct dma_buf dmabuf, struct file file)
bdb8d06d HV	29	{
	30	return 0;
	31	}
bdb8d06d HV	32
bdb8d06d HV	33	static inline void dma_buf_stats_teardown(struct dma_buf *dmabuf) {}
bdb8d06d HV	34	#endif
bdb8d06d HV	35	#endif // _DMA_BUF_SYSFS_STATS_H