linux-kernel - [PATCH -mm] tracing: Fix section mismatch in trace_hw

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Message-ID: <b9df5fa10902131936p5e0997c6p57f659457a9cc356@mail.gmail.com>
Date:	Sat, 14 Feb 2009 09:36:00 +0600
From:	Rakib Mullick <rakib.mullick@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	markus.t.metzger@...il.com
Subject: [PATCH -mm] tracing: Fix section mismatch in trace_hw_branches.c

  Impact: Fix section mismatch

The function bts_trace_init() references a variable
bts_hotcpu_notifier which is marked
as __cpuinitdata. Thus causes section mismatch. This patch fixes it.

  LD      kernel/trace/built-in.o
WARNING: kernel/trace/built-in.o(.text+0xc90c): Section mismatch in
reference from the function bts_trace_init() to the variable
.cpuinit.data:bts_hotcpu_notifier
The function bts_trace_init() references
the variable __cpuinitdata bts_hotcpu_notifier.
This is often because bts_trace_init lacks a __cpuinitdata
annotation or the annotation of bts_hotcpu_notifier is wrong.

WARNING: kernel/trace/built-in.o(.text+0xc92a): Section mismatch in
reference from the function bts_trace_reset() to the variable
.cpuinit.data:bts_hotcpu_notifier
The function bts_trace_reset() references
the variable __cpuinitdata bts_hotcpu_notifier.
This is often because bts_trace_reset lacks a __cpuinitdata
annotation or the annotation of bts_hotcpu_notifier is wrong.

Thanks.

---
Signed-off-by: Rakib Mullick <rakib.mullick@...il.com>

--- linus/kernel/trace/trace_hw_branches.c	2009-02-13 11:23:55.000000000 +0600
+++ rakib/kernel/trace/trace_hw_branches.c	2009-02-13 22:12:30.000000000 +0600
@@ -127,7 +127,7 @@ static struct notifier_block bts_hotcpu_
 	.notifier_call = bts_hotcpu_handler
 };

-static int bts_trace_init(struct trace_array *tr)
+static int __cpuinit bts_trace_init(struct trace_array *tr)
 {
 	hw_branch_trace = tr;

@@ -137,7 +137,7 @@ static int bts_trace_init(struct trace_a
 	return 0;
 }

-static void bts_trace_reset(struct trace_array *tr)
+static void __cpuinit bts_trace_reset(struct trace_array *tr)
 {
 	bts_trace_stop(tr);
 	unregister_hotcpu_notifier(&bts_hotcpu_notifier);
--
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