From: H. Peter Anvin <hpa@zytor.com>
Date: Mon, 12 Oct 2009 21:14:10 +0000 (-0700)
Subject: x86: use kernel_stack_pointer() in kprobes.c
X-Git-Tag: v2.6.33-rc1~395^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98272ed0d2e6509fe7dc571e77956c99bf653bb6;p=pandora-kernel.git

x86: use kernel_stack_pointer() in kprobes.c

The way to obtain a kernel-mode stack pointer from a struct pt_regs in
32-bit mode is "subtle": the stack doesn't actually contain the stack
pointer, but rather the location where it would have been marks the
actual previous stack frame.  For clarity, use kernel_stack_pointer()
instead of coding this weirdness explicitly.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
---

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