From: Lu Baolu <baolu.lu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Vinod Koul <vkoul@kernel.org>, 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 16/17] iommu/vt-d: Remove a useless BUG_ON(dev->is_virtfn)
Date: Tue, 11 Apr 2023 14:48:14 +0800 [thread overview]
Message-ID: <20230411064815.31456-17-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <20230411064815.31456-1-baolu.lu@linux.intel.com>
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
next prev parent reply other threads:[~2023-04-11 6:51 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-11 6:47 [PATCH 00/17] [PULL REQUEST] Intel IOMMU updates for Linux v6.4 Lu Baolu
2023-04-11 6:47 ` [PATCH 01/17] dmaengine: idxd: Add enable/disable device IOPF feature Lu Baolu
2023-04-12 4:52 ` Vinod Koul
2023-04-11 6:48 ` [PATCH 02/17] iommu/vt-d: Allow SVA with device-specific IOPF Lu Baolu
2023-04-11 6:48 ` [PATCH 03/17] iommu/vt-d: Move iopf code from SVA to IOPF enabling path Lu Baolu
2023-04-11 6:48 ` [PATCH 04/17] iommu/vt-d: Move pfsid and ats_qdep calculation to device probe path Lu Baolu
2023-04-11 6:48 ` [PATCH 05/17] iommu/vt-d: Move PRI handling to IOPF feature path Lu Baolu
2023-04-11 6:48 ` [PATCH 06/17] iommu/vt-d: Remove unnecessary checks in iopf disabling path Lu Baolu
2023-04-11 6:48 ` [PATCH 07/17] iommu/vt-d: Do not use GFP_ATOMIC when not needed Lu Baolu
2023-04-11 6:48 ` [PATCH 08/17] iommu/vt-d: Remove extern from function prototypes Lu Baolu
2023-04-11 6:48 ` [PATCH 09/17] iommu/vt-d: Use non-privileged mode for all PASIDs Lu Baolu
2023-04-11 6:48 ` [PATCH 10/17] iommu/vt-d: Remove PASID supervisor request support Lu Baolu
2023-04-11 6:48 ` [PATCH 11/17] iommu/vt-d: Fix operand size in bitwise operation Lu Baolu
2023-04-11 21:22 ` David Laight
2023-04-12 1:31 ` Baolu Lu
2023-04-12 7:11 ` David Laight
2023-04-12 8:11 ` Zhang, Tina
2023-04-12 13:10 ` Baolu Lu
2023-04-12 13:27 ` David Laight
2023-04-12 14:02 ` Baolu Lu
2023-04-11 6:48 ` [PATCH 12/17] iommu/vt-d: Remove BUG_ON on checking valid pfn range Lu Baolu
2023-04-11 6:48 ` [PATCH 13/17] iommu/vt-d: Remove BUG_ON in handling iotlb cache invalidation Lu Baolu
2023-04-11 6:48 ` [PATCH 14/17] iommu/vt-d: Remove BUG_ON when domain->pgd is NULL Lu Baolu
2023-04-11 6:48 ` [PATCH 15/17] iommu/vt-d: Remove BUG_ON in map/unmap() Lu Baolu
2023-04-11 6:48 ` Lu Baolu [this message]
2023-04-11 6:48 ` [PATCH 17/17] iommu/vt-d: Remove BUG_ON in dmar_insert_dev_scope() Lu Baolu
2023-04-13 4:12 ` [PATCH 00/17] [PULL REQUEST] Intel IOMMU updates for Linux v6.4 Baolu Lu
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