Use IS_ALIGNED() instead. Otherwise, an unaligned address will be ignored. Fixes: 33cd6e642d6a7 ("iommu/vt-d: Flush PASID-based iotlb for iova over first level") Signed-off-by: Lu Baolu <baolu...@linux.intel.com> --- drivers/iommu/intel/dmar.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c index b46dbfa6d0ed..004feaed3c72 100644 --- a/drivers/iommu/intel/dmar.c +++ b/drivers/iommu/intel/dmar.c @@ -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) | -- 2.25.1