[PATCH] iommu/dma: Fix NEED_SG_DMA_LENGTH dependency

[Arnd Bergmann]

On Monday 29 February 2016 11:13:39 Robin Murphy wrote:
> IOMMU_DMA does indeed depend on scatterlists having a DMA length, but
> the NEED_SG_DMA_LENGTH symbol should be selected, not depended upon.
> 
> Reported-by: Arnd Bergmann <arnd at arndb.de>
> Signed-off-by: Robin Murphy <robin.murphy at arm.com>
> 

Acked-by: Arnd Bergmann <arnd at arndb.de>