Commit 69980630 authored Aug 15, 2013 by Shuah Khan Committed by Joerg Roedel Sep 24, 2013

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>

parent b54db778

drivers/iommu/iommu.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -702,6 +702,7 @@ void iommu_detach_device(struct iommu_domain domain, struct device dev)
		return;

		domain->ops->detach_dev(domain, dev);
		trace_detach_device_from_domain(dev);
		}
		EXPORT_SYMBOL_GPL(iommu_detach_device);

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