linux-kernel - [PATCH] ftrace: Don't convert function's local variable name in macro

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Message-ID: <4A1D41C2.2010903@cn.fujitsu.com>
Date:	Wed, 27 May 2009 21:36:02 +0800
From:	Zhaolei <zhaolei@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] ftrace: Don't convert function's local variable name in macro

"call" is a argument of macro, but it is also used as a local variable name of
function in macro.
We should keep this local variable name static although it haven't cause
problem now.

[ Impact: cleanup, no functionality changed ]

Signed-off-by: Zhao Lei <zhaolei@...fujitsu.com>
---
 include/trace/ftrace.h |   20 ++++++++++----------
 1 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index edb02bc..6f1218e 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -375,19 +375,19 @@ static void ftrace_profile_##call(proto)				\
 	perf_tpcounter_event(event_##call.id);				\
 }									\
 									\
-static int ftrace_profile_enable_##call(struct ftrace_event_call *call) \
+static int ftrace_profile_enable_##call(struct ftrace_event_call *event_call) \
 {									\
 	int ret = 0;							\
 									\
-	if (!atomic_inc_return(&call->profile_count))			\
+	if (!atomic_inc_return(&event_call->profile_count))		\
 		ret = register_trace_##call(ftrace_profile_##call);	\
 									\
 	return ret;							\
 }									\
 									\
-static void ftrace_profile_disable_##call(struct ftrace_event_call *call) \
+static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\
 {									\
-	if (atomic_add_negative(-1, &call->profile_count))		\
+	if (atomic_add_negative(-1, &event_call->profile_count))	\
 		unregister_trace_##call(ftrace_profile_##call);		\
 }
 
@@ -411,9 +411,9 @@ static void ftrace_profile_disable_##call(struct ftrace_event_call *call) \
 #define __array(type, item, len)
 
 #undef __string
-#define __string(item, src)						       \
-	__str_offsets.item = __str_size +				       \
-			     offsetof(typeof(*entry), __str_data);	       \
+#define __string(item, src)						\
+	__str_offsets.item = __str_size +				\
+			     offsetof(typeof(*entry), __str_data);	\
 	__str_size += strlen(src) + 1;
 
 #undef __assign_str
@@ -429,8 +429,8 @@ static struct ftrace_event_call event_##call;				\
 									\
 static void ftrace_raw_event_##call(proto)				\
 {									\
-	struct ftrace_str_offsets_##call __maybe_unused __str_offsets;  \
-	struct ftrace_event_call *call = &event_##call;			\
+	struct ftrace_str_offsets_##call __maybe_unused __str_offsets;	\
+	struct ftrace_event_call *event_call = &event_##call;		\
 	struct ring_buffer_event *event;				\
 	struct ftrace_raw_##call *entry;				\
 	unsigned long irq_flags;					\
@@ -451,7 +451,7 @@ static void ftrace_raw_event_##call(proto)				\
 									\
 	assign;								\
 									\
-	if (!filter_current_check_discard(call, entry, event))		\
+	if (!filter_current_check_discard(event_call, entry, event))	\
 		trace_nowake_buffer_unlock_commit(event, irq_flags, pc); \
 }									\
 									\
-- 
1.5.5.3


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