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authorJoerg Roedel <jroedel@suse.de>2014-08-05 17:34:25 +0200
committerJoerg Roedel <jroedel@suse.de>2014-08-26 11:37:52 +0200
commitcafd2545cfd36ef6fee14f9c36870b81d3c98de5 (patch)
tree479f588a3ac2b7686479e7d890d47f080ab4307d /drivers/iommu
parentiommu/amd: Attach and detach complete alias group (diff)
downloadlinux-dev-cafd2545cfd36ef6fee14f9c36870b81d3c98de5.tar.xz
linux-dev-cafd2545cfd36ef6fee14f9c36870b81d3c98de5.zip
iommu/amd: Remove device binding reference count
This reference count is not used anymore, as all devices in an alias group are now attached and detached together. Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/amd_iommu.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a5e6b0a2de16..989c1ae03979 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -96,7 +96,6 @@ struct iommu_dev_data {
struct list_head alias_list; /* Link alias-groups together */
struct iommu_dev_data *alias_data;/* The alias dev_data */
struct protection_domain *domain; /* Domain the device is bound to */
- atomic_t bind; /* Domain attach reference count */
u16 devid; /* PCI Device ID */
bool iommu_v2; /* Device can make use of IOMMUv2 */
bool passthrough; /* Default for device is pt_domain */
@@ -139,7 +138,6 @@ static struct iommu_dev_data *alloc_dev_data(u16 devid)
INIT_LIST_HEAD(&dev_data->alias_list);
dev_data->devid = devid;
- atomic_set(&dev_data->bind, 0);
spin_lock_irqsave(&dev_data_list_lock, flags);
list_add_tail(&dev_data->dev_data_list, &dev_data_list);
@@ -3179,7 +3177,6 @@ static void cleanup_domain(struct protection_domain *domain)
entry = list_first_entry(&domain->dev_list,
struct iommu_dev_data, list);
__detach_device(entry);
- atomic_set(&entry->bind, 0);
}
write_unlock_irqrestore(&amd_iommu_devtable_lock, flags);