/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_KERNEL_FTRACE_INTERNAL_H#define  _LINUX_KERNEL_FTRACE_INTERNAL_H int __register_ftrace_function(struct ftrace_ops *ops);int __unregister_ftrace_function(struct ftrace_ops *ops); #ifdef CONFIG_FUNCTION_TRACER extern struct mutex ftrace_lock;extern struct ftrace_ops global_ops; #ifdef CONFIG_DYNAMIC_FTRACE int ftrace_startup(struct ftrace_ops *ops, int command);int ftrace_shutdown(struct ftrace_ops *ops, int command);int ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs);int ftrace_startup_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command);int ftrace_shutdown_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command); #else /* !CONFIG_DYNAMIC_FTRACE */ /* Keep as macros so we do not need to define the commands */# define ftrace_startup(ops, command)					\	({								\		int ___ret = __register_ftrace_function(ops);		\		if (!___ret)						\			(ops)->flags |= FTRACE_OPS_FL_ENABLED;		\		___ret;							\	})# define ftrace_shutdown(ops, command)					\	({								\		int ___ret = __unregister_ftrace_function(ops);		\		if (!___ret)						\			(ops)->flags &= ~FTRACE_OPS_FL_ENABLED;		\		___ret;							\	})static inline intftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs){	return 1;}static inline int ftrace_startup_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command){	return -EINVAL;}static inline int ftrace_shutdown_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command){	return -EINVAL;}#endif /* CONFIG_DYNAMIC_FTRACE */ #ifdef CONFIG_FUNCTION_GRAPH_TRACERextern int ftrace_graph_active;# ifdef CONFIG_DYNAMIC_FTRACEextern void fgraph_update_pid_func(void);# elsestatic inline void fgraph_update_pid_func(void) {}# endif#else /* !CONFIG_FUNCTION_GRAPH_TRACER */# define ftrace_graph_active 0static inline void fgraph_update_pid_func(void) {}#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ #else /* !CONFIG_FUNCTION_TRACER */#endif /* CONFIG_FUNCTION_TRACER */ #endif