Hi Linus,

Three small fixes for iommufd.

Thanks,
Jason

The following changes since commit 211ddde0823f1442e4ad052a2f30f050145ccada:

  Linux 6.18-rc2 (2025-10-19 15:19:16 -1000)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git tags/for-linus-iommufd

for you to fetch changes up to afb47765f9235181fddc61c8633b5a8cfae29fd2:

  iommufd: Make vfio_compat's unmap succeed if the range is already empty (2025-11-05 15:11:26 -0400)

----------------------------------------------------------------
iommufd 6.18 first rc pull

Three fixes:

- Syzkaller found a case where maths overflows can cause divide by 0

- Typo in a compiler bug warning fix in the selftests broke the selftests

- type1 compatability had a mismatch when unmapping an already unmaped
  range, it should succeed

----------------------------------------------------------------
Jason Gunthorpe (2):
      iommufd: Don't overflow during division for dirty tracking
      iommufd: Make vfio_compat's unmap succeed if the range is already empty

Nicolin Chen (1):
      iommufd/selftest: Fix ioctl return value in _test_cmd_trigger_vevents()

 drivers/iommu/iommufd/io_pagetable.c          | 12 +++---------
 drivers/iommu/iommufd/ioas.c                  |  4 ++++
 drivers/iommu/iommufd/iova_bitmap.c           |  5 ++---
 tools/testing/selftests/iommu/iommufd.c       |  2 ++
 tools/testing/selftests/iommu/iommufd_utils.h |  4 ++--
 5 files changed, 13 insertions(+), 14 deletions(-)