On Thu, Mar 10, 2016 at 07:28:12PM +0000, Robin Murphy wrote:
> With the change to stashing just the IOVA-page-aligned remainder of the
> CPU-page offset rather than the whole thing, the failure path in
> __invalidate_sg() also needs tweaking to account for that in the case of
> differing page sizes where the two offsets may not be equivalent.
> Similarly in __finalise_sg(), lest the architecture-specific wrappers
> later get the wrong address for cache maintenance on sync or unmap.
>
> Fixes: 164afb1d85b8 ("iommu/dma: Use correct offset in map_sg")
> Reported-by: Magnus Damm <[email protected]>
> Signed-off-by: Robin Murphy <[email protected]>
Cc: [email protected] # v4.4+ ?
Joerg
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