@@ -670,28 +670,25 @@ static void __do_enter_rtas(struct rtas_args *args)
static void __do_enter_rtas_trace(struct rtas_args *args)
{
- const char *name = NULL;
+ struct rtas_function *func = rtas_token_to_function(be32_to_cpu(args->token));
- if (args == &rtas_args)
- lockdep_assert_held(&rtas_lock);
/*
- * If the tracepoints that consume the function name aren't
- * active, avoid the lookup.
+ * If there is a per-function lock, it must be held by the
+ * caller.
*/
- if ((trace_rtas_input_enabled() || trace_rtas_output_enabled())) {
- const s32 token = be32_to_cpu(args->token);
- const struct rtas_function *func = rtas_token_to_function(token);
+ if (func->lock)
+ WARN_ON(!mutex_is_locked(func->lock));
- name = func->name;
- }
+ if (args == &rtas_args)
+ lockdep_assert_held(&rtas_lock);
- trace_rtas_input(args, name);
+ trace_rtas_input(args, func->name);
trace_rtas_ll_entry(args);
__do_enter_rtas(args);
trace_rtas_ll_exit(args);
- trace_rtas_output(args, name);
+ trace_rtas_output(args, func->name);
}
static void do_enter_rtas(struct rtas_args *args)