iommu/vt-d: Remove a useless BUG_ON(dev->is_virtfn)

When dmar_alloc_pci_notify_info() is being invoked, the invoker has
ensured the dev->is_virtfn is false. So, remove the useless BUG_ON in
dmar_alloc_pci_notify_info().

Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Link: https://lore.kernel.org/r/20230406065944.2773296-7-tina.zhang@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c
index 01d0ca0019f24a09b14dd65186e23dd504fdeb41..9684c96247f885d2eb4c6f13571363a10cdb6d37 100644 (file)
--- a/drivers/iommu/intel/dmar.c
+++ b/drivers/iommu/intel/dmar.c
@@ -127,8 +127,6 @@ dmar_alloc_pci_notify_info(struct pci_dev *dev, unsigned long event)
        struct pci_dev *tmp;
        struct dmar_pci_notify_info *info;
 
-       BUG_ON(dev->is_virtfn);
-
        /*
         * Ignore devices that have a domain number higher than what can
         * be looked up in DMAR, e.g. VMD subdevices with domain 0x10000