Merge tag 'nvme-5.16-2021-10-28' of git://git.infradead.org/nvme into for-5.16/drivers

Pull NVMe updates from Christoph:

"nvme updates for Linux 5.16

 - support the current discovery subsystem entry (Hannes Reinecke)
 - use flex_array_size and struct_size (Len Baker)"

* tag 'nvme-5.16-2021-10-28' of git://git.infradead.org/nvme:
  nvmet: use flex_array_size and struct_size
  nvmet: register discovery subsystem as 'current'
  nvmet: switch check for subsystem type
  nvme: add new discovery log page entry definitions