From 74f6d776ae0b8498cfdb574ab24992bd50a2a2f1 Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Thu, 10 Jun 2021 10:01:12 +0800 Subject: iommu/vt-d: Removed unused iommu_count in dmar domain DMAR domain uses per DMAR refcount. It is indexed by iommu seq_id. Older iommu_count is only incremented and decremented but no decisions are taken based on this refcount. This is not of much use. Hence, remove iommu_count and further simplify domain_detach_iommu() by returning void. Signed-off-by: Parav Pandit Signed-off-by: Lu Baolu Link: https://lore.kernel.org/r/20210530075053.264218-1-parav@nvidia.com Link: https://lore.kernel.org/r/20210610020115.1637656-21-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel --- include/linux/intel-iommu.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 2621eff04c82..574b932dfe86 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -561,7 +561,6 @@ struct dmar_domain { int agaw; int flags; /* flags to find out type of domain */ - int iommu_count; /* reference count of iommu */ int iommu_superpage;/* Level of superpages supported: 0 == 4KiB (no superpages), 1 == 2MiB, 2 == 1GiB, 3 == 512GiB, 4 == 1TiB */ -- cgit v1.2.3-71-gd317