[PATCH 0/7] iommu/arm-smmu-v3: Fixes reported by Sashiko

[Mostafa Saleh]

While running sashiko locally on the pKVM SMMUv3 driver patches, it
reported some pre-existing issues in the SMMUv3 driver (the RB tree
corruption and a missing NULL check) and given that this is not the
first time a pre-existing issue appears in the driver from sashiko,
I went ahead and passed the whole driver to Sashiko which reported a
dozen of other issues(except the last one in this series), I included
fixes for bugs I believe are true or worth fixing (others were mostly
missing NULL checks or bizarre HW/FW configs I don’t think are needed).

I also sorted the patches based on severity from the most critical to
the least, so it is easier to apply a prefix if some bugs are too
theoretical

Mostafa Saleh (7):
  iommu/arm-smmu-v3: Ensure L2 tables are visible before L1 ptrs
  iommu/arm-smmu-v3: Prevent rbtree corruption from duplicate streams
  iommu/arm-smmu-v3-iommufd: Fix error path in
    arm_vsmmu_cache_invalidate()
  iommu/arm-smmu-v3-test: Fix arm_smmu_v3_test_debug_print_used_bits()
  iommu/arm-smmu-v3-test: Add missing error checks for inv array
  iommu/arm-smmu-v3-test: Fix OOB in arm_smmu_v3_invs_test_verify()
  iommu/arm-smmu-v3-test: Fix UBSAN error

 .../arm/arm-smmu-v3/arm-smmu-v3-iommufd.c     | 12 +++++-----
 .../iommu/arm/arm-smmu-v3/arm-smmu-v3-test.c  | 19 +++++++++++++---
 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c   | 22 ++++++++++++++-----
 3 files changed, 39 insertions(+), 14 deletions(-)

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2.55.0.897.gb25b4bd76c-goog