Use EXPORT_SYMBOL_GPL() to export the iova library symbols. The symbols
include:
init_iova_domain();
iova_cache_get();
iova_cache_put();
alloc_iova();
find_iova();
__free_iova();
free_iova();
put_iova_domain();
reserve_iova();
This is necessary in order to use the iova library from a kernel module.
Signed-off-by: Sakari Ailus <[email protected]>
---
drivers/iommu/iova.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index 6bc7022..e9e62f4 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -28,6 +28,7 @@ init_iova_domain(struct iova_domain *iovad, unsigned long
pfn_32bit)
iovad->cached32_node = NULL;
iovad->dma_32bit_pfn = pfn_32bit;
}
+EXPORT_SYMBOL_GPL(init_iova_domain);
static struct rb_node *
__get_cached_rbnode(struct iova_domain *iovad, unsigned long *limit_pfn)
@@ -230,6 +231,7 @@ int iova_cache_get(void)
return 0;
}
+EXPORT_SYMBOL_GPL(iova_cache_get);
void iova_cache_put(void)
{
@@ -243,6 +245,7 @@ void iova_cache_put(void)
kmem_cache_destroy(iova_cache);
mutex_unlock(&iova_cache_mutex);
}
+EXPORT_SYMBOL_GPL(iova_cache_put);
/**
* alloc_iova - allocates an iova
@@ -283,6 +286,7 @@ alloc_iova(struct iova_domain *iovad, unsigned long size,
return new_iova;
}
+EXPORT_SYMBOL_GPL(alloc_iova);
/**
* find_iova - find's an iova for a given pfn
@@ -323,6 +327,7 @@ struct iova *find_iova(struct iova_domain *iovad, unsigned
long pfn)
spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags);
return NULL;
}
+EXPORT_SYMBOL_GPL(find_iova);
/**
* __free_iova - frees the given iova
@@ -341,6 +346,7 @@ __free_iova(struct iova_domain *iovad, struct iova *iova)
spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags);
free_iova_mem(iova);
}
+EXPORT_SYMBOL_GPL(__free_iova);
/**
* free_iova - finds and frees the iova for a given pfn
@@ -357,6 +363,7 @@ free_iova(struct iova_domain *iovad, unsigned long pfn)
__free_iova(iovad, iova);
}
+EXPORT_SYMBOL_GPL(free_iova);
/**
* put_iova_domain - destroys the iova doamin
@@ -378,6 +385,7 @@ void put_iova_domain(struct iova_domain *iovad)
}
spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags);
}
+EXPORT_SYMBOL_GPL(put_iova_domain);
static int
__is_range_overlap(struct rb_node *node,
@@ -467,6 +475,7 @@ finish:
spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags);
return iova;
}
+EXPORT_SYMBOL_GPL(reserve_iova);
/**
* copy_reserved_iova - copies the reserved between domains
--
2.1.0.231.g7484e3b
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