Hi,
On Wed, 2019-11-27 at 15:40 +0100, Christoph Hellwig wrote:
> Devices that are forced to DMA through unencrypted bounce buffers
> need to be treated as if they are addressing limited.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> kernel/dma/mapping.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
> index 1dbe6d725962..f6c35b53d996 100644
> --- a/kernel/dma/mapping.c
> +++ b/kernel/dma/mapping.c
> @@ -416,6 +416,8 @@ EXPORT_SYMBOL_GPL(dma_get_merge_boundary);
> */
> bool dma_addressing_limited(struct device *dev)
> {
> + if (force_dma_unencrypted(dev))
> + return true;
> return min_not_zero(dma_get_mask(dev), dev->bus_dma_limit) <
> dma_get_required_mask(dev);
> }
Any chance to have the case
(swiotlb_force == SWIOTLB_FORCE)
also included?
Otherwise for the series
Reviewed-by: Thomas Hellström <thellstrom@xxxxxxxxxx>
