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#include_next <linux/tracepoint.h>
#ifndef __BACKPORT_LINUX_TRACEPOINT_H
#define __BACKPORT_LINUX_TRACEPOINT_H
#ifndef TRACE_DEFINE_ENUM
#define TRACE_DEFINE_ENUM(a)
#endif
#if LINUX_VERSION_IS_LESS(3,15,0)
#ifdef TRACEPOINTS_ENABLED
#undef __DECLARE_TRACE
#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
extern struct tracepoint __tracepoint_##name; \
static inline void trace_##name(proto) \
{ \
if (static_key_false(&__tracepoint_##name.key)) \
__DO_TRACE(&__tracepoint_##name, \
TP_PROTO(data_proto), \
TP_ARGS(data_args), \
TP_CONDITION(cond),,); \
} \
__DECLARE_TRACE_RCU(name, PARAMS(proto), PARAMS(args), \
PARAMS(cond), PARAMS(data_proto), PARAMS(data_args)) \
static inline int \
register_trace_##name(void (*probe)(data_proto), void *data) \
{ \
return tracepoint_probe_register(#name, (void *)probe, \
data); \
} \
static inline int \
unregister_trace_##name(void (*probe)(data_proto), void *data) \
{ \
return tracepoint_probe_unregister(#name, (void *)probe, \
data); \
} \
static inline void \
check_trace_callback_type_##name(void (*cb)(data_proto)) \
{ \
} \
static inline bool \
trace_##name##_enabled(void) \
{ \
return static_key_false(&__tracepoint_##name.key); \
}
#else
#undef __DECLARE_TRACE
#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
static inline void trace_##name(proto) \
{ } \
static inline void trace_##name##_rcuidle(proto) \
{ } \
static inline int \
register_trace_##name(void (*probe)(data_proto), \
void *data) \
{ \
return -ENOSYS; \
} \
static inline int \
unregister_trace_##name(void (*probe)(data_proto), \
void *data) \
{ \
return -ENOSYS; \
} \
static inline void check_trace_callback_type_##name(void (*cb)(data_proto)) \
{ \
} \
static inline bool \
trace_##name##_enabled(void) \
{ \
return false; \
}
#endif /* TRACEPOINTS_ENABLED */
#elif LINUX_VERSION_IS_LESS(3,16,0)
#ifdef TRACEPOINTS_ENABLED
#undef __DECLARE_TRACE
#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
extern struct tracepoint __tracepoint_##name; \
static inline void trace_##name(proto) \
{ \
if (static_key_false(&__tracepoint_##name.key)) \
__DO_TRACE(&__tracepoint_##name, \
TP_PROTO(data_proto), \
TP_ARGS(data_args), \
TP_CONDITION(cond),,); \
} \
__DECLARE_TRACE_RCU(name, PARAMS(proto), PARAMS(args), \
PARAMS(cond), PARAMS(data_proto), PARAMS(data_args)) \
static inline int \
register_trace_##name(void (*probe)(data_proto), void *data) \
{ \
return tracepoint_probe_register(&__tracepoint_##name, \
(void *)probe, data); \
} \
static inline int \
unregister_trace_##name(void (*probe)(data_proto), void *data) \
{ \
return tracepoint_probe_unregister(&__tracepoint_##name,\
(void *)probe, data); \
} \
static inline void \
check_trace_callback_type_##name(void (*cb)(data_proto)) \
{ \
} \
static inline bool \
trace_##name##_enabled(void) \
{ \
return static_key_false(&__tracepoint_##name.key); \
}
#else
#undef __DECLARE_TRACE
#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
static inline void trace_##name(proto) \
{ } \
static inline void trace_##name##_rcuidle(proto) \
{ } \
static inline int \
register_trace_##name(void (*probe)(data_proto), \
void *data) \
{ \
return -ENOSYS; \
} \
static inline int \
unregister_trace_##name(void (*probe)(data_proto), \
void *data) \
{ \
return -ENOSYS; \
} \
static inline void check_trace_callback_type_##name(void (*cb)(data_proto)) \
{ \
} \
static inline bool \
trace_##name##_enabled(void) \
{ \
return false; \
}
#endif /* TRACEPOINTS_ENABLED */
#endif /* < 3.16 */
#endif /* __BACKPORT_LINUX_TRACEPOINT_H */
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