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authorShuah Khan <shuah.kh@samsung.com>2013-08-15 21:59:27 +0400
committerJoerg Roedel <joro@8bytes.org>2013-09-24 14:35:26 +0400
commit699806302d8ac7dfb7d46e20da0ecd4317418d1d (patch)
tree406d54a42e179207e604d9f952a29d069c958378 /drivers/iommu
parentb54db778858bc83f9231e5b358cb978f559f7016 (diff)
downloadlinux-699806302d8ac7dfb7d46e20da0ecd4317418d1d.tar.xz
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>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/iommu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 74c371c53ee4..b6307545124c 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -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);