iommu: Change iommu driver to call detach_device_to_domain trace event
Change iommu driver to call detach_device_to_domain trace event. This iommu_device class event can be enabled to trigger when devices are detached from a domain. Trace information includes device name. Testing: Added trace calls to iommu_prepare_identity_map() for testing some of the conditions that are hard to trigger. Here is the trace from the testing: swapper/0-1 [003] .... 1.854102: detach_device_from_domain: IOMMU: device=0000:00:02.0 Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
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@ -702,6 +702,7 @@ void iommu_detach_device(struct iommu_domain *domain, struct device *dev)
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return;
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return;
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domain->ops->detach_dev(domain, dev);
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domain->ops->detach_dev(domain, dev);
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trace_detach_device_from_domain(dev);
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}
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}
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EXPORT_SYMBOL_GPL(iommu_detach_device);
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EXPORT_SYMBOL_GPL(iommu_detach_device);
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