From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 15 Mar 2012 22:26:59 +0000 (+1100)
Subject: powerpc: Fix power4/970 idle code regression with lockdep
X-Git-Tag: v3.4-rc1~159^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=01e8ec4417d3c484986af0adaa0ae6632e0a59cd;p=pandora-kernel.git

powerpc: Fix power4/970 idle code regression with lockdep

in commit 7230c5644188cd9e3fb380cc97dde00c464a3ba7
"powerpc: Rework lazy-interrupt handling"

I introduced a regression, accidentally calling irq tracing twice
and not properly restoring a clobbered register (r7) later used
for writing to the MSR.

This caused lockups when booting on a G5 with lockdep enabled.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

Reading git-diff-tree failed