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authorPrathyush K <prathyush.k@samsung.com>2013-01-04 06:22:42 -0500
committerMarek Szyprowski <m.szyprowski@samsung.com>2013-02-25 15:30:42 +0100
commit18177d12c0cee5646c7c2045ea90ddf882011c97 (patch)
tree9728ed0c398753643c27cb36476376551ba910e6 /arch/arm/mm/dma-mapping.c
parent6fe367580339a3adf77273d4366652665319bdeb (diff)
downloadop-kernel-dev-18177d12c0cee5646c7c2045ea90ddf882011c97.zip
op-kernel-dev-18177d12c0cee5646c7c2045ea90ddf882011c97.tar.gz
arm: dma mapping: export arm iommu functions
This patch adds EXPORT_SYMBOL_GPL calls to the three arm iommu functions - arm_iommu_create_mapping, arm_iommu_free_mapping and arm_iommu_attach_device. These three functions are arm specific wrapper functions for creating/freeing/using an iommu mapping and they are called by various drivers. If any of these drivers need to be built as dynamic modules, these functions need to be exported. Changelog v2: using EXPORT_SYMBOL_GPL as suggested by Marek. Signed-off-by: Prathyush K <prathyush.k@samsung.com> [m.szyprowski: extended with recently introduced EXPORT_SYMBOL_GPL(arm_iommu_detach_device)] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
-rw-r--r--arch/arm/mm/dma-mapping.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 6563e38..6ab882a0 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1803,6 +1803,7 @@ err2:
err:
return ERR_PTR(err);
}
+EXPORT_SYMBOL_GPL(arm_iommu_create_mapping);
static void release_iommu_mapping(struct kref *kref)
{
@@ -1819,6 +1820,7 @@ void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping)
if (mapping)
kref_put(&mapping->kref, release_iommu_mapping);
}
+EXPORT_SYMBOL_GPL(arm_iommu_release_mapping);
/**
* arm_iommu_attach_device
@@ -1847,6 +1849,7 @@ int arm_iommu_attach_device(struct device *dev,
pr_debug("Attached IOMMU controller to %s device.\n", dev_name(dev));
return 0;
}
+EXPORT_SYMBOL_GPL(arm_iommu_attach_device);
/**
* arm_iommu_detach_device
@@ -1872,5 +1875,6 @@ void arm_iommu_detach_device(struct device *dev)
pr_debug("Detached IOMMU controller from %s device.\n", dev_name(dev));
}
+EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
#endif
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