Commit 18177d12 authored by Prathyush K's avatar Prathyush K Committed by Marek Szyprowski

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: default avatarPrathyush K <prathyush.k@samsung.com>
[m.szyprowski: extended with recently introduced
 EXPORT_SYMBOL_GPL(arm_iommu_detach_device)]
Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
parent 6fe36758
...@@ -1803,6 +1803,7 @@ arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size, ...@@ -1803,6 +1803,7 @@ arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size,
err: err:
return ERR_PTR(err); return ERR_PTR(err);
} }
EXPORT_SYMBOL_GPL(arm_iommu_create_mapping);
static void release_iommu_mapping(struct kref *kref) static void release_iommu_mapping(struct kref *kref)
{ {
...@@ -1819,6 +1820,7 @@ void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping) ...@@ -1819,6 +1820,7 @@ void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping)
if (mapping) if (mapping)
kref_put(&mapping->kref, release_iommu_mapping); kref_put(&mapping->kref, release_iommu_mapping);
} }
EXPORT_SYMBOL_GPL(arm_iommu_release_mapping);
/** /**
* arm_iommu_attach_device * arm_iommu_attach_device
...@@ -1847,6 +1849,7 @@ int arm_iommu_attach_device(struct device *dev, ...@@ -1847,6 +1849,7 @@ int arm_iommu_attach_device(struct device *dev,
pr_debug("Attached IOMMU controller to %s device.\n", dev_name(dev)); pr_debug("Attached IOMMU controller to %s device.\n", dev_name(dev));
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(arm_iommu_attach_device);
/** /**
* arm_iommu_detach_device * arm_iommu_detach_device
...@@ -1872,5 +1875,6 @@ void arm_iommu_detach_device(struct device *dev) ...@@ -1872,5 +1875,6 @@ void arm_iommu_detach_device(struct device *dev)
pr_debug("Detached IOMMU controller from %s device.\n", dev_name(dev)); pr_debug("Detached IOMMU controller from %s device.\n", dev_name(dev));
} }
EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
#endif #endif
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment