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Subjectlinux-next: dwmw2-iommu tree build failure
Hi David,

Today's linux-next build (x86_64 allmodconfig) failed like this:

drivers/pci/intel-iommu.c: In function 'iommu_prepare_identity_map':
drivers/pci/intel-iommu.c:1979: error: implicit declaration of function 'dmi_get_system_info'

Caused by commit 2ff729f5445cc47d1910386c36e53fc6b1c5e47a ("intel-iommu:
Cope with yet another BIOS screwup causing crashes") from the dwmw2-iommu
tree interacting with commit 2e15511d37cded52140573b72c3b5b085fdb7f80
("ACPI: linux/acpi.h should not include linux/dmi.h") from he acpi tree.

This file needs to include linux/dmi.h directly ... I applied the
following patch for today.

From: Stephen Rothwell <>
Date: Mon, 31 Aug 2009 15:20:33 +1000
Subject: [PATCH] intel-iommu: include linux/dmi.h to use dmi_ routines

Signed-off-by: Stephen Rothwell <>
drivers/pci/intel-iommu.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index d36fa80..2ec5899 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -37,6 +37,7 @@
#include <linux/iommu.h>
#include <linux/intel-iommu.h>
#include <linux/sysdev.h>
+#include <linux/dmi.h>
#include <asm/cacheflush.h>
#include <asm/iommu.h>
#include "pci.h"
Stephen Rothwell

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