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authorDmitry Kasatkin <dmitry.kasatkin@nokia.com>2010-11-19 16:04:29 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2010-11-27 16:37:19 +0800
commit887c883eea9867535059f3c8414c8cfc952ccff1 (patch)
tree2a35344c0b1de81b5b4a70bfe416c6605c5809c7 /crypto
parenta55b290b0e41e02d1969589c5d77d966ac2b7ec8 (diff)
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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>
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