swiotlb: move orig addr and size validation into swiotlb_bounce

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Move the code to find and validate the original buffer address and size
from the callers into swiotlb_bounce.  This means a tiny bit of extra
work in the swiotlb_map path, but avoids code duplication and a leads to
a better code structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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Christoph Hellwig 2021-03-01 08:44:25 +01:00 • committed by Konrad Rzeszutek Wilk

parent 2973073a80

commit 2bdba622c3

1 changed files with 23 additions and 36 deletions

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kernel/dma/swiotlb.c

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