Merge tag 'dma-mapping-6.5-2023-06-28' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - swiotlb cleanups (Petr Tesarik)

 - use kvmalloc_array (gaoxu)

 - a small step towards removing is_swiotlb_active (Christoph Hellwig)

 - fix a Kconfig typo Sui Jingfeng)

* tag 'dma-mapping-6.5-2023-06-28' of git://git.infradead.org/users/hch/dma-mapping:
  drm/nouveau: stop using is_swiotlb_active
  swiotlb: use the atomic counter of total used slabs if available
  swiotlb: remove unused field "used" from struct io_tlb_mem
  dma-remap: use kvmalloc_array/kvfree for larger dma memory remap
  dma-mapping: fix a Kconfig typo