Revert "iommu/amd: Remove the leftover of bypass support"

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This reverts commit 7a5dbf3ab2.

This commit not only removes the leftovers of bypass
support, it also mostly removes the checking of the return
value of the get_domain() function. This can lead to silent
data corruption bugs when a device is not attached to its
dma_ops domain and a DMA-API function is called for that
device.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Joerg Roedel 2019-05-06 14:24:18 +02:00

parent 1a1079011d

commit 89736a0ee8

1 changed files with 63 additions and 17 deletions

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drivers/iommu/amd_iommu.c

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