tip: origin tree build failure

[Ingo Molnar <mingo@elte.hu>]

* Matthew Garrett <mjg@redhat.com> wrote:

>       dell-laptop: Use buffer with 32-bit physical address

Hi, this commit introduced an allyesconfig build bug - fixed via the patch 
below.

Thanks,

	Ingo

------------------>
>From 03894dc8462f82c145ec1c3aced9b0718ae4e9ed Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Sun, 28 Feb 2010 20:55:41 +0100
Subject: [PATCH] dell-laptop: Fix build error by making buffer_mutex static

The following build bug (x86, allyesconfig):

  arch/x86/oprofile/built-in.o:(.data+0x250): multiple definition of `buffer_mutex'

Was triggered in -tip testing, caused by this upstream commit:

  116ee77: dell-laptop: Use buffer with 32-bit physical address

There's multiple buffer_mutex's in the kernel. Make this new one
static.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 drivers/platform/x86/dell-laptop.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index b7f4d27..29d96a4 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -132,8 +132,8 @@ static struct dmi_system_id __devinitdata dell_blacklist[] = {
 };
 
 static struct calling_interface_buffer *buffer;
-struct page *bufferpage;
-DEFINE_MUTEX(buffer_mutex);
+static struct page *bufferpage;
+static DEFINE_MUTEX(buffer_mutex);
 
 static int hwswitch_state;