diff options
| author | Joerg Roedel <jroedel@suse.de> | 2015-05-28 18:41:25 +0200 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:15:02 -0700 |
| commit | bec972050b278de2e677bbe771ca6802a481034c (patch) | |
| tree | f02060d75be3ce993377b013aeb13e4d2dceee5b | |
| parent | 8c1a0cd61b287f8fda5ef8da891b78811cb0826c (diff) | |
iommu: Add a few printk messages to group handling code
Write a message to the kernel log when a device is added or
removed from a group and add debug messages to group
allocation and release routines.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/iommu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 4eac71197e14..7c70a637fb9d 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -131,6 +131,8 @@ static void iommu_group_release(struct kobject *kobj) { struct iommu_group *group = to_iommu_group(kobj); + pr_debug("Releasing group %d\n", group->id); + if (group->iommu_data_release) group->iommu_data_release(group->iommu_data); @@ -210,6 +212,8 @@ again: */ kobject_put(&group->kobj); + pr_debug("Allocated group %d\n", group->id); + return group; } EXPORT_SYMBOL_GPL(iommu_group_alloc); @@ -375,6 +379,9 @@ rename: IOMMU_GROUP_NOTIFY_ADD_DEVICE, dev); trace_add_device_to_group(group->id, dev); + + pr_info("Adding device %s to group %d\n", dev_name(dev), group->id); + return 0; } EXPORT_SYMBOL_GPL(iommu_group_add_device); @@ -391,6 +398,8 @@ void iommu_group_remove_device(struct device *dev) struct iommu_group *group = dev->iommu_group; struct iommu_device *tmp_device, *device = NULL; + pr_info("Removing device %s from group %d\n", dev_name(dev), group->id); + /* Pre-notify listeners that a device is being removed. */ blocking_notifier_call_chain(&group->notifier, IOMMU_GROUP_NOTIFY_DEL_DEVICE, dev); |