tree d4dbd2376fc75baf5312e30799e5937e68da9746
parent 15aedea439c4d7dbec17c99b5e1594c01b979833
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> 1243384982 +0900
committer Joerg Roedel <joerg.roedel@amd.com> 1243600015 +0200

dma-debug: use sg_dma_len accessor

debug_dma_map_sg() and debug_dma_unmap_sg() use length in struct
scatterlist while debug_dma_sync_sg_for_cpu() and
debug_dma_sync_sg_for_device() use dma_length. This causes bugs
warnings on some IOMMU implementations since these values are not
same; the length doesn't represent the dma length.

We always need to use sg_dma_len() accessor to get the dma length of a
scatterlist entry.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>