Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg...

Pull iommufd fixes from Jason Gunthorpe:
 "Some changes to the userspace selftest framework cause the iommufd
  tests to start failing. This turned out to be bugs in the iommufd side
  that were just getting uncovered.

   - Deal with MAP_HUGETLB mmaping more than requested even when in
     MAP_FIXED mode

   - Fixup missing error flow cleanup in the test

   - Check that the memory allocations suceeded

   - Suppress some bogus gcc 'may be used uninitialized' warnings"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd/selftest: Fix build warnings due to uninitialized mfd
  iommufd/selftest: Add asserts testing global mfd
  iommufd/selftest: Add missing close(mfd) in memfd_mmap()
  iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes