/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _BLK_PM_H_#define _BLK_PM_H_ struct device;struct request_queue; /* * block layer runtime pm functions */#ifdef CONFIG_PMextern void blk_pm_runtime_init(struct request_queue *q, struct device *dev);extern int blk_pre_runtime_suspend(struct request_queue *q);extern void blk_post_runtime_suspend(struct request_queue *q, int err);extern void blk_pre_runtime_resume(struct request_queue *q);extern void blk_post_runtime_resume(struct request_queue *q, int err);extern void blk_set_runtime_active(struct request_queue *q);#elsestatic inline void blk_pm_runtime_init(struct request_queue *q,				       struct device *dev) {}#endif #endif /* _BLK_PM_H_ */