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tracing: Remove cond argument from __DECLARE_TRACE_SYSCALL

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Syscall tracepoints do not require a "cond" argument, because they are
meant to be used only for sys_enter and sys_exit instrumentation, which
don't require condition evaluation.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Jeanson <mjeanson@efficios.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: bpf@vger.kernel.org
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Jordan Rife <jrife@google.com>
Cc: linux-trace-kernel@vger.kernel.org
Link: https://lore.kernel.org/20241123153031.2884933-6-mathieu.desnoyers@efficios.com
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Mathieu Desnoyers 2024-11-23 10:30:31 -05:00 committed by Steven Rostedt (Google)
parent 98bf0fbb65
commit ef0d418608
1 changed files with 13 additions and 12 deletions
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25
include/linux/tracepoint.h
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@ -220,7 +220,7 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
* site if it is not watching, as it will need to be active when the
* tracepoint is enabled.
*/
#define __DECLARE_TRACE_COMMON(name, proto, args, cond, data_proto) \
#define __DECLARE_TRACE_COMMON(name, proto, args, data_proto) \
extern int __traceiter_##name(data_proto); \
DECLARE_STATIC_CALL(tp_func_##name, __traceiter_##name); \
extern struct tracepoint __tracepoint_##name; \
@ -254,7 +254,7 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
}
#define __DECLARE_TRACE(name, proto, args, cond, data_proto) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), cond, PARAMS(data_proto)) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
static inline void trace_##name(proto) \
{ \
if (static_branch_unlikely(&__tracepoint_##name.key)) { \
@ -269,18 +269,16 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
} \
}
#define __DECLARE_TRACE_SYSCALL(name, proto, args, cond, data_proto) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), cond, PARAMS(data_proto)) \
#define __DECLARE_TRACE_SYSCALL(name, proto, args, data_proto) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
static inline void trace_##name(proto) \
{ \
might_fault(); \
if (static_branch_unlikely(&__tracepoint_##name.key)) { \
if (cond) { \
scoped_guard(rcu_tasks_trace) \
__DO_TRACE_CALL(name, TP_ARGS(args)); \
} \
scoped_guard(rcu_tasks_trace) \
__DO_TRACE_CALL(name, TP_ARGS(args)); \
} \
if (IS_ENABLED(CONFIG_LOCKDEP) && (cond)) { \
if (IS_ENABLED(CONFIG_LOCKDEP)) { \
WARN_ONCE(!rcu_is_watching(), \
"RCU not watching for tracepoint"); \
} \
@ -363,7 +361,7 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
#else /* !TRACEPOINTS_ENABLED */
#define __DECLARE_TRACE(name, proto, args, cond, data_proto) \
#define __DECLARE_TRACE_COMMON(name, proto, args, data_proto) \
static inline void trace_##name(proto) \
{ } \
static inline int \
@ -387,7 +385,11 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
return false; \
}
#define __DECLARE_TRACE_SYSCALL __DECLARE_TRACE
#define __DECLARE_TRACE(name, proto, args, cond, data_proto) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto))
#define __DECLARE_TRACE_SYSCALL(name, proto, args, data_proto) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto))
#define DEFINE_TRACE_FN(name, reg, unreg, proto, args)
#define DEFINE_TRACE_SYSCALL(name, reg, unreg, proto, args)
@ -453,7 +455,6 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
#define DECLARE_TRACE_SYSCALL(name, proto, args) \
__DECLARE_TRACE_SYSCALL(name, PARAMS(proto), PARAMS(args), \
cpu_online(raw_smp_processor_id()), \
PARAMS(void *__data, proto))
#define TRACE_EVENT_FLAGS(event, flag)