tree 2a35344c0b1de81b5b4a70bfe416c6605c5809c7
parent a55b290b0e41e02d1969589c5d77d966ac2b7ec8
author Dmitry Kasatkin <dmitry.kasatkin@nokia.com> 1290175469 +0200
committer Herbert Xu <herbert@gondor.apana.org.au> 1290847039 +0800

crypto: omap-sham - zero-copy scatterlist handling

If scatterlist have more than one entry, current driver uses
aligned buffer to copy data to to accelerator to tackle possible
issues with DMA and SHA buffer alignment.

This commit adds more intelligence to verify SG alignment and
possibility to use DMA directly on the data without using copy
buffer.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>