Pull VFIO updates from Alex Williamson:

 - Fix nvlink error path (Alexey Kardashevskiy)

 - Update nvlink and spapr to use mmgrab() (Julia Lawall)

 - Update static declaration (Ben Dooks)

 - Annotate __iomem to fix sparse warnings (Ben Dooks)

* tag 'vfio-v5.6-rc1' of git://github.com/awilliam/linux-vfio:
  vfio: platform: fix __iomem in vfio_platform_amdxgbe.c
  vfio/mdev: make create attribute static
  vfio/spapr_tce: use mmgrab
  vfio: vfio_pci_nvlink2: use mmgrab
  vfio/spapr/nvlink2: Skip unpinning pages on error exit