linux-kernel - [ 70/89] x86-32: Export kernel_stack

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Date:	Mon, 03 Dec 2012 14:32:56 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Yang Wei <wei.yang@...driver.com>,
	Robert Richter <robert.richter@....com>,
	Jun Zhang <jun.zhang@...el.com>
Subject: [ 70/89] x86-32: Export kernel_stack_pointer() for modules

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

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

From: "H. Peter Anvin" <hpa@...ux.intel.com>

commit cb57a2b4cff7edf2a4e32c0163200e9434807e0a upstream.

Modules, in particular oprofile (and possibly other similar tools)
need kernel_stack_pointer(), so export it using EXPORT_SYMBOL_GPL().

Cc: Yang Wei <wei.yang@...driver.com>
Cc: Robert Richter <robert.richter@....com>
Cc: Jun Zhang <jun.zhang@...el.com>
Link: http://lkml.kernel.org/r/20120912135059.GZ8285@erda.amd.com
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/x86/kernel/ptrace.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -21,6 +21,7 @@
 #include <linux/signal.h>
 #include <linux/perf_event.h>
 #include <linux/hw_breakpoint.h>
+#include <linux/module.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -191,6 +192,7 @@ unsigned long kernel_stack_pointer(struc
 
 	return (unsigned long)regs;
 }
+EXPORT_SYMBOL_GPL(kernel_stack_pointer);
 
 static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {


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