From 36aa1b180e7398e2bd27642760bfaa4ad8c65ab6 Mon Sep 17 00:00:00 2001
From: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Date: Thu, 12 Dec 2013 15:59:34 +1100
Subject: [PATCH] powerpc: PTRACE_PEEKUSR always returns FPR0

There is a bug in using ptrace to access FPRs via PTRACE_PEEKUSR /
PTRACE_POKEUSR. In effect, trying to access any of the FPRs always
really accesses FPR0, which does seriously break debugging :-)

The problem seems to have been introduced by commit 3ad26e5c4459d
(Merge branch 'for-kvm' into next).

[ It is indeed a merge conflict between Paul's FPU/VSX state rework
and my LE patches - Anton ]

Signed-off-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
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