Re: [PATCH V9 1/4] dma-mapping: Rework dma_get_cache_alignment()

[Mark Greer]

On Mon, Oct 23, 2017 at 03:12:44PM +0800, Huacai Chen wrote:
> Make dma_get_cache_alignment() to accept a 'dev' argument. As a result,
> it can return different alignments due to different devices' I/O cache
> coherency.
> 
> Currently, ARM/ARM64 and MIPS support coherent & noncoherent devices
> co-exist. This may be extended in the future, so add a new function
> pointer (i.e, get_cache_alignment) in 'struct dma_map_ops' as a generic
> solution.
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Cc: Pawel Osciak <pawel@xxxxxxxxxx>
> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> Cc: Michael Chan <michael.chan@xxxxxxxxxxxx>
> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> Cc: Ivan Mikhaylov <ivan@xxxxxxxxxx>
> Cc: Tariq Toukan <tariqt@xxxxxxxxxxxx>
> Cc: Andy Gross <agross@xxxxxxxxxxxxxx>
> Cc: Mark A. Greer <mgreer@xxxxxxxxxxxxxxx>
> Cc: Robert Baldyga <r.baldyga@xxxxxxxxxxxxx>
> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx>
> ---

For the mpsc stuff:

Acked-by: Mark Greer <mgreer@xxxxxxxxxxxxxxx>