Merge tag 'dma-mapping-6.11-2024-07-19' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - reduce duplicate swiotlb pool lookups (Michael Kelley)

 - minor small fixes (Yicong Yang, Yang Li)

* tag 'dma-mapping-6.11-2024-07-19' of git://git.infradead.org/users/hch/dma-mapping:
  swiotlb: fix kernel-doc description for swiotlb_del_transient
  swiotlb: reduce swiotlb pool lookups
  dma-mapping: benchmark: Don't starve others when doing the test