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iommu-api: Add missing header file

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If CONFIG_IOMMU_API is not defined some functions will just
return -ENODEV. Add errno.h for the definition of ENODEV.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Laura Abbott 2011-06-08 17:29:11 -04:00 committed by Joerg Roedel
parent 2c53b436a3
commit 74315cccd2
1 changed files with 2 additions and 0 deletions
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2
include/linux/iommu.h
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@ -19,6 +19,8 @@
#ifndef __LINUX_IOMMU_H
#define __LINUX_IOMMU_H
#include <linux/errno.h>
#define IOMMU_READ (1)
#define IOMMU_WRITE (2)
#define IOMMU_CACHE (4) /* DMA cache coherency */