amd-iommu: remove BUS_NOTIFY_BOUND_DRIVER handling

Handling this event causes device assignment in KVM to fail because the
device gets re-attached as soon as the pci-stub registers as the driver
for the device.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 8510e90..8187260 100644 (file)
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1145,17 +1145,6 @@ static int device_change_notifier(struct notifier_block *nb,
                          "to a non-dma-ops domain\n", dev_name(dev));
 
        switch (action) {
-       case BUS_NOTIFY_BOUND_DRIVER:
-               if (domain)
-                       goto out;
-               dma_domain = find_protection_domain(devid);
-               if (!dma_domain)
-                       dma_domain = iommu->default_dom;
-               attach_device(iommu, &dma_domain->domain, devid);
-               DUMP_printk(KERN_INFO "AMD IOMMU: Using protection domain "
-                           "%d for device %s\n",
-                           dma_domain->domain.id, dev_name(dev));
-               break;
        case BUS_NOTIFY_UNBOUND_DRIVER:
                if (!domain)
                        goto out;