linux-kernel - [44/75] oprofile, arm/sh: Fix oprofile_arch

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Message-Id: <20120103223324.714665377@clark.kroah.org>
Date:	Tue, 03 Jan 2012 14:33:17 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	Vladimir Zapolskiy <vladimir.zapolskiy@...ia.com>,
	Robert Richter <robert.richter@....com>,
	Will Deacon <will.deacon@....com>,
	oprofile-list <oprofile-list@...ts.sourceforge.net>,
	Ingo Molnar <mingo@...e.hu>
Subject: [44/75] oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue

3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vladimir Zapolskiy <vladimir.zapolskiy@...ia.com>

commit 55205c916e179e09773d98d290334d319f45ac6b upstream.

This change fixes a linking problem, which happens if oprofile
is selected to be compiled as built-in:

  `oprofile_arch_exit' referenced in section `.init.text' of
  arch/arm/oprofile/built-in.o: defined in discarded section
  `.exit.text' of arch/arm/oprofile/built-in.o

The problem is appeared after commit 87121ca504, which
introduced oprofile_arch_exit() calls from __init function. Note
that the aforementioned commit has been backported to stable
branches, and the problem is known to be reproduced at least
with 3.0.13 and 3.1.5 kernels.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@...ia.com>
Signed-off-by: Robert Richter <robert.richter@....com>
Cc: Will Deacon <will.deacon@....com>
Cc: oprofile-list <oprofile-list@...ts.sourceforge.net>
Link: http://lkml.kernel.org/r/20111222151540.GB16765@erda.amd.com
Signed-off-by: Ingo Molnar <mingo@...e.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 arch/arm/oprofile/common.c |    2 +-
 arch/sh/oprofile/common.c  |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

--- a/arch/arm/oprofile/common.c
+++ b/arch/arm/oprofile/common.c
@@ -116,7 +116,7 @@ int __init oprofile_arch_init(struct opr
 	return oprofile_perf_init(ops);
 }
 
-void __exit oprofile_arch_exit(void)
+void oprofile_arch_exit(void)
 {
 	oprofile_perf_exit();
 }
--- a/arch/sh/oprofile/common.c
+++ b/arch/sh/oprofile/common.c
@@ -49,7 +49,7 @@ int __init oprofile_arch_init(struct opr
 	return oprofile_perf_init(ops);
 }
 
-void __exit oprofile_arch_exit(void)
+void oprofile_arch_exit(void)
 {
 	oprofile_perf_exit();
 	kfree(sh_pmu_op_name);
@@ -60,5 +60,5 @@ int __init oprofile_arch_init(struct opr
 	ops->backtrace = sh_backtrace;
 	return -ENODEV;
 }
-void __exit oprofile_arch_exit(void) {}
+void oprofile_arch_exit(void) {}
 #endif /* CONFIG_HW_PERF_EVENTS */


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