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Commit 227a76b6 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Konrad Rzeszutek Wilk
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swiotlb: clear io_tlb_start and io_tlb_end in swiotlb_exit



Otherwise is_swiotlb_buffer will return false positives when
we first initialize a swiotlb buffer, but then free it because
we have an IOMMU available.

Fixes: 55897af6 ("dma-direct: merge swiotlb_dma_ops into the dma_direct code")
Reported-by: default avatarSibren Vasse <sibren@sibrenvasse.nl>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Tested-by: default avatarSibren Vasse <sibren@sibrenvasse.nl>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 1c7fc5cb
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