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iommu/vt-d: Fix misuse of ALIGN in qi_flush_piotlb()

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Use IS_ALIGNED() instead. Otherwise, an unaligned address will be ignored.

Fixes: 33cd6e642d6a ("iommu/vt-d: Flush PASID-based iotlb for iova over first level")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20201231005323.2178523-1-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Lu Baolu 2020-12-31 08:53:19 +08:00 committed by Will Deacon
parent b34f10c2dc
commit 1efd17e7ac
1 changed files with 2 additions and 2 deletions
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4
drivers/iommu/intel/dmar.c
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@ -1461,8 +1461,8 @@ void qi_flush_piotlb(struct intel_iommu *iommu, u16 did, u32 pasid, u64 addr,
int mask = ilog2(__roundup_pow_of_two(npages));
unsigned long align = (1ULL << (VTD_PAGE_SHIFT + mask));
if (WARN_ON_ONCE(!ALIGN(addr, align)))
addr &= ~(align - 1);
if (WARN_ON_ONCE(!IS_ALIGNED(addr, align)))
addr = ALIGN_DOWN(addr, align);
desc.qw0 = QI_EIOTLB_PASID(pasid) |
QI_EIOTLB_DID(did) |