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iommu/vt-d: Fix unused invalidation hint in qi_desc_iotlb

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Invalidation hint (ih) in the function 'qi_desc_iotlb' is initialized
to zero and never used. It is embedded in the 0th bit of the 'addr'
parameter. Get the correct 'ih' value from there.

Fixes: f701c9f36b ("iommu/vt-d: Factor out invalidation descriptor composition")
Signed-off-by: Aashish Sharma <aashish@aashishsharma.net>
Link: https://lore.kernel.org/r/20251009010903.1323979-1-aashish@aashishsharma.net
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Aashish Sharma
2025-11-19 13:16:13 +08:00
committed by Joerg Roedel
parent cb3db5a39e
commit 6b38a108ee
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/intel/iommu.h
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@@ -1097,7 +1097,7 @@ static inline void qi_desc_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,
struct qi_desc *desc)
{
u8 dw = 0, dr = 0;
int ih = 0;
int ih = addr & 1;
if (cap_write_drain(iommu->cap))
dw = 1;