From: Joerg Roedel <jroe...@suse.de>
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 <jroe...@suse.de>
---
drivers/iommu/amd_iommu.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a5e6b0a..989c1ae 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);
--
1.9.1
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