From 77f2878b4f78c0b29c4a2580665a446c77901152 Mon Sep 17 00:00:00 2001
From: Jan Blunck <jblunck@suse.de>
Date: Wed, 14 Nov 2007 17:00:42 -0800
Subject: [PATCH] oprofile: fix oops on x86 32-bit

x86 32-bit isn't saving the stack pointer to pt_regs->esp when an
interrupt occurs.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Tested-by: Robert Fitzsimons <robfitz@273k.net>
Cc: Andi Kleen <ak@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/asm-x86/ptrace.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 213c97300cb..51ddb259087 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -60,7 +60,7 @@ static inline int v8086_mode(struct pt_regs *regs)
 
 #define instruction_pointer(regs) ((regs)->eip)
 #define frame_pointer(regs) ((regs)->ebp)
-#define stack_pointer(regs) ((regs)->esp)
+#define stack_pointer(regs) ((unsigned long)(regs))
 #define regs_return_value(regs) ((regs)->eax)
 
 extern unsigned long profile_pc(struct pt_regs *regs);