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From:   Lu Baolu <baolu.lu@linux.intel.com>
To:     Joerg Roedel <joro@8bytes.org>
Cc:     Tina Zhang <tina.zhang@intel.com>,
        Jacob Pan <jacob.jun.pan@linux.intel.com>,
        Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
        iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH v2 16/17] iommu/vt-d: Remove a useless BUG_ON(dev->is_virtfn)
Date:   Thu, 13 Apr 2023 12:06:44 +0800
Message-Id: <20230413040645.46157-17-baolu.lu@linux.intel.com>
In-Reply-To: <20230413040645.46157-1-baolu.lu@linux.intel.com>
References: <20230413040645.46157-1-baolu.lu@linux.intel.com>
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From: Tina Zhang <tina.zhang@intel.com>

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>
---
 drivers/iommu/intel/dmar.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c
index f0f51c957ccb..9346c6e7ebae 100644
--- 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
-- 
2.34.1