Commit 3bf83e47b497 for kernel

commit 3bf83e47b497d2630d2dcb408ec14ad95050cead
Merge: b0662be9131d 702809dabdec
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri May 15 15:13:02 2026 -0700

    Merge tag 'vfio-v7.1-rc4' of https://github.com/awilliam/linux-vfio

    Pull VFIO fixes from Alex Williamson:

     - Convert vfio-pci BAR resource requests and iomaps initialization
       from a lazy, on-demand model to an eager pre-allocation model to
       avoid races while preserving legacy error behavior.  Fix unchecked
       barmap access in dma-buf export path (Matt Evans)

     - Introduce an implicit unsigned cast in converting vfio-pci device
       offsets to region indexes, closing a potential out-of-bounds
       access through the vfio_pci_ioeventfd() interface (Matt Evans)

     - Fix a dma-buf kref underflow and stuck wait_for_completion() when
       closing a previously revoked dma-buf (Alex Williamson)

    * tag 'vfio-v7.1-rc4' of https://github.com/awilliam/linux-vfio:
      vfio/pci: Check BAR resources before exporting a DMABUF
      vfio/pci: Set up BAR resources and maps in vfio_pci_core_enable()
      vfio/pci: Make VFIO_PCI_OFFSET_TO_INDEX() return unsigned
      vfio/pci: fix dma-buf kref underflow after revoke