linux-kernel - [PATCH] compile time initialization for event flags value

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Date:	Wed, 26 Jan 2011 16:49:00 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] compile time initialization for event flags value

compile time initialization is better than runtime initialization.

impact: remove many early_initcall()s and many trace_init_flags_##name()s.

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 18cd068..ff074c8 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -135,8 +135,8 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		.class			= &event_class_syscall_enter,	\
 		.event.funcs            = &enter_syscall_print_funcs,	\
 		.data			= (void *)&__syscall_meta_##sname,\
-	};								\
-	__TRACE_EVENT_FLAGS(enter_##sname, TRACE_EVENT_FL_CAP_ANY)
+		.flags			= TRACE_EVENT_FL_CAP_ANY,	\
+	};
 
 #define SYSCALL_TRACE_EXIT_EVENT(sname)					\
 	static struct syscall_metadata					\
@@ -149,8 +149,8 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		.class			= &event_class_syscall_exit,	\
 		.event.funcs		= &exit_syscall_print_funcs,	\
 		.data			= (void *)&__syscall_meta_##sname,\
-	};								\
-	__TRACE_EVENT_FLAGS(exit_##sname, TRACE_EVENT_FL_CAP_ANY)
+		.flags			= TRACE_EVENT_FL_CAP_ANY,	\
+	};
 
 #define SYSCALL_METADATA(sname, nb)				\
 	SYSCALL_TRACE_ENTER_EVENT(sname);			\
--
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