Christoph Hellwig 7c703e54cc arch: switch the default on ARCH_HAS_SG_CHAIN ...

These days architectures are mostly out of the business of dealing with
struct scatterlist at all, unless they have architecture specific iommu
drivers.  Replace the ARCH_HAS_SG_CHAIN symbol with a ARCH_NO_SG_CHAIN
one only enabled for architectures with horrible legacy iommu drivers
like alpha and parisc, and conditionally for arm which wants to keep it
disable for legacy platforms.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>

2018-12-06 07:04:56 -08:00

..

dma-contiguous

Documentation/features: Refresh the arch support status files in place

2018-05-08 09:27:48 -06:00