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drivers/iommu: Export core IOMMU API symbols to permit modular drivers

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Building IOMMU drivers as modules requires that the core IOMMU API
symbols are exported as GPL symbols.

Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: John Garry <john.garry@huawei.com> # smmu v3
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Will Deacon
2019-12-19 12:03:37 +00:00
committed by Joerg Roedel
parent 46cf053efe
commit a7ba5c3d00
2 changed files with 13 additions and 0 deletions
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5
drivers/iommu/iommu-sysfs.c
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@@ -87,6 +87,7 @@ error:
put_device(iommu->dev);
return ret;
}
EXPORT_SYMBOL_GPL(iommu_device_sysfs_add);
void iommu_device_sysfs_remove(struct iommu_device *iommu)
{
@@ -94,6 +95,8 @@ void iommu_device_sysfs_remove(struct iommu_device *iommu)
device_unregister(iommu->dev);
iommu->dev = NULL;
}
EXPORT_SYMBOL_GPL(iommu_device_sysfs_remove);
/*
* IOMMU drivers can indicate a device is managed by a given IOMMU using
* this interface. A link to the device will be created in the "devices"
@@ -119,6 +122,7 @@ int iommu_device_link(struct iommu_device *iommu, struct device *link)
return ret;
}
EXPORT_SYMBOL_GPL(iommu_device_link);
void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
{
@@ -128,3 +132,4 @@ void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
sysfs_remove_link(&link->kobj, "iommu");
sysfs_remove_link_from_group(&iommu->dev->kobj, "devices", dev_name(link));
}
EXPORT_SYMBOL_GPL(iommu_device_unlink);