Three more fixes for the DMA-mapping code, related to PCI P2PDMA, DMA
debug and DMA link ranges API (Li RongQing and Jason Gunthorpe).
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Merge tag 'dma-mapping-7.1-2026-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping fix from Marek Szyprowski:
"Three more fixes for the DMA-mapping code, related to PCI P2PDMA, DMA
debug and DMA link ranges API (Li RongQing and Jason Gunthorpe)"
* tag 'dma-mapping-7.1-2026-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
iommu/dma: Do not try to iommu_map a 0 length region in swiotlb
dma-debug: fix physical address retrieval in debug_dma_sync_sg_for_device
dma-mapping: direct: fix missing mapping for THRU_HOST_BRIDGE segments