diff options
| author | Parav Pandit <parav@nvidia.com> | 2021-06-10 10:01:12 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-06-10 09:06:14 +0200 |
| commit | 74f6d776ae0b8498cfdb574ab24992bd50a2a2f1 (patch) | |
| tree | ab885dbf9ff739c68a0e32735072132af4fb9c98 /include/linux/intel-iommu.h | |
| parent | 1f106ff0ea2782a6bc49bb927e4789681a2ec507 (diff) | |
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 <parav@nvidia.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
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 <jroedel@suse.de>
Diffstat (limited to 'include/linux/intel-iommu.h')
| -rw-r--r-- | include/linux/intel-iommu.h | 1 |
1 files changed, 0 insertions, 1 deletions
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 */ |